highaltitude.log.20140322

[00:01] Geoff-G8DHE-M (~Geoff-G8D@geoffg8dhe.plus.com) left irc: Ping timeout: 240 seconds
[00:01] Nick change: Geoff-G8DHE_ -> Geoff-G8DHE-M
[00:10] <DL7AD> morning
[00:12] <Laurenceb> its slowing down, like the hysplit
[00:16] <LeoBodnar> hitting Turkey's igates
[00:17] <LeoBodnar> YM7ORD 441.7 km
[00:18] <Laurenceb> i dont see it
[00:18] <DL7AD> all in all already well done LeoBodnar :)
[00:18] <Laurenceb> oh
[00:18] <Laurenceb> aprs.fi being weird
[00:18] <LeoBodnar> http://www.db0anf.de/app/aprs/stations/digiusage-M0XER-11?sort=lastheard-d
[00:18] <DL7AD> recently got this http://ready.arl.noaa.gov/hypub/arlTraj.swf?client=gme-noaa&channel=OAR.ARL.HQ.HYSPLIT&dir=/hypubout/HYSPLITtraj_135413&data=/hysplit_metadata&ext=html
[00:18] <Laurenceb> wow
[00:18] <Laurenceb> what the heck
[00:18] <LeoBodnar> dropped to 438.2 :/
[00:18] <LeoBodnar> :D
[00:19] <Laurenceb> massively over the horizon
[00:19] <daveake> Good job it's not trying to tweet then
[00:19] <Lunar_Lander> xD
[00:19] <LeoBodnar> he's probably on the cliff
[00:20] <LeoBodnar> 723m amsl
[00:20] <DL7AD> yes most time its going up 500m at the coast
[00:20] <Laurenceb> ah mountains
[00:21] <Laurenceb> the 2m performance is pretty insane
[00:21] <Laurenceb> its hitting most receivers at the horizon line
[00:21] <amell_> http://ready.arl.noaa.gov/hypubout/trajplot_135467.pdf
[00:22] <DL7AD> lets fly to north korea :D
[00:23] <Laurenceb> theres aprs in Urumqi
[00:23] <amell_> http://ready.arl.noaa.gov/hypub/arlTraj.swf?client=gme-noaa&channel=OAR.ARL.HQ.HYSPLIT&dir=/hypubout/HYSPLITtraj_135484&data=/hysplit_metadata&ext=html
[00:23] <amell_> doesn't quite hit NK
[00:23] <amell_> vladivostok
[00:23] <Laurenceb> but ~0 in Mongolia
[00:24] <Vostok> huh
[00:24] <amell_> lol
[00:24] <Laurenceb> wonder if Baghlan airbase is capable of doing anything
[00:25] <Laurenceb> well thats about the only APRS between the caucuses and China
[00:25] <LeoBodnar> they are probably using US APRS freq
[00:26] <Laurenceb> ah of course
[00:26] <LeoBodnar> i did not account for that
[00:26] <amell_> algorithmic failure?
[00:26] <Laurenceb> heh
[00:26] <Laurenceb> trollin
[00:26] <LeoBodnar> it's easier to ask them to adjust RX freq
[00:27] <LeoBodnar> lol
[00:27] <arko> http://ready.arl.noaa.gov/hypubout/trajplot_135539.pdf
[00:27] <arko> oh looky
[00:27] <arko> spain it is
[00:27] <LeoBodnar> U.S.A. is so small
[00:28] <LeoBodnar> on that map :D
[00:28] <Vostok> not true
[00:28] <Vostok> usa is the center of the universe
[00:28] <arko> seems legit
[00:29] <Laurenceb> should beat PBH-18 soon
[00:29] <Laurenceb> Leo top 1,2,3 for duration?
[00:30] <LeoBodnar> oh? I don't follow the tables anymore
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[00:30] <LeoBodnar> i can't even remember when B-41 launched :D
[00:31] <amell_> 18th march in the evening. you didn't tell us until you had let it off.
[00:31] <DL7AD> and i hoped to get more far with d-1 and d-2 and finally both did less than 24 hours :/
[00:32] <LeoBodnar> i think long duration flying season has opened
[00:33] <DL7AD> leo? do you have enough flash to tell your tracker where aprs digis and igates are?
[00:33] <LeoBodnar> they are not falling out of the sky within few hours
[00:33] <LeoBodnar> yes, why?
[00:33] <amell_> it must be almost sun up for b-41
[00:33] <LeoBodnar> sunrise is 03:30 UTC there
[00:33] <DL7AD> ehm probably to change freq
[00:34] <LeoBodnar> amell_: http://habitat.habhub.org/mobile-tracker/ has a day/night overlay, perhaps you know that already
[00:34] <amell_> I didn't. thank you ;)
[00:35] <LeoBodnar> you need to enable it in settings
[00:35] <Laurenceb> hmm
[00:35] <Laurenceb> yeah if it knew where igates were you could cheat
[00:35] <Laurenceb> and cache the locations
[00:35] <Laurenceb> obviously if some a missed it doesnt work
[00:36] <Laurenceb> but its better than nothing
[00:36] <Laurenceb> if a bit insane
[00:36] <LeoBodnar> i go by the geofence as it is cleaner
[00:37] <LeoBodnar> i think i have China, S.Korea, Japan and USA with their own frequencies
[00:37] <Laurenceb> yeah
[00:37] <amell_> did you put iran in?
[00:38] <LeoBodnar> ah, it's 144.800 everywhere else
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[00:38] <LeoBodnar> apart from UK and France where any APRS is off
[00:38] <LeoBodnar> not sure what Iran uses
[00:39] <LeoBodnar> we can email local hams and ask to tune to 144.800 if it really gets there
[00:40] <amell_> it will get there
[00:40] <LeoBodnar> sound bite can be decoded and fed into aprs.fi from here
[00:40] <Laurenceb> Turkish coast is lighting up over the horizon
[00:40] <amell_> good lord is that the time. gn.
[00:41] <LeoBodnar> B-41 must be seeing the shimmering lights over the sea and the sunrise is coming soon. there seem to be no cloud cover. awwww
[00:41] <LeoBodnar> we need a camera
[00:41] <LeoBodnar> maybe not over Iran
[00:41] <amell_> B-42 = world tour with camera
[00:42] <Laurenceb> without
[00:43] <Laurenceb> it could be added, i was thinking about that
[00:43] <Laurenceb> but we dont have anyone with SSDV
[00:43] <Lunar_Lander> gute nacht
[00:44] <Laurenceb> camera could be done within the power/mass budget
[00:44] <Lunar_Lander> *good night
[00:44] <LeoBodnar> gn
[00:44] <LeoBodnar> yeah
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[00:44] <DL7AD> the major problem doing ssdv is the ram
[00:45] <LeoBodnar> external ram is no problem
[00:45] <Laurenceb> or just grab an stm32f4
[00:45] <LeoBodnar> or that
[00:45] <Laurenceb> lots of ram and a camera interface
[00:45] <DL7AD> can you write your flash while running your pcb?
[00:45] <DL7AD> by itself?
[00:46] <LeoBodnar> yes
[00:46] <DL7AD> because my pcb does....
[00:47] <LeoBodnar> maybe need to bump the voltage up during writes a bit
[00:47] <LeoBodnar> temporarily
[00:47] <Laurenceb> yeah, same with stm32 aiui
[00:47] <DL7AD> ah... remember.... ^^
[00:47] <Laurenceb> over the olympics
[00:47] <Laurenceb> wonder if they still have anti aircraft set up...
[00:48] <LeoBodnar> add another resistor to buck converter and pull it down from an mcu pin
[00:48] <LeoBodnar> *converter feedback
[00:48] <DL7AD> LeoBodnar: thats what im doing. i can change the voltage from 2.0 to 3.3 when i need full tx power
[00:48] <LeoBodnar> antiballoon
[00:49] <Laurenceb> we need an RF detector to see if it gets probed
[00:49] <DL7AD> got it implemented in my new design
[00:49] <Laurenceb> by anti aircraft
[00:49] <LeoBodnar> they probably release 10,000+ balloons over the course of the event
[00:49] <LeoBodnar> that would be awesome
[00:50] <LeoBodnar> simple SDR waterfall
[00:50] <LeoBodnar> send it down with weatherfax protocol or SSDV
[00:51] <LeoBodnar> could be useful for frequency selection
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[00:52] <DL7AD> for this time its a pity we did not get the log from france. im voting for implementing the log again ;)
[00:52] <LeoBodnar> hehe
[00:53] <LeoBodnar> Geoff recreated it from forecasts
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[00:53] <DL7AD> LeoBodnar: recently got this feature in my code ;)
[00:53] <LeoBodnar> it would waste tonnes of bandwidth
[00:53] <DL7AD> so what? the important thing is power. and you have enough power on day
[00:54] <Laurenceb> the new lipo cells are amazingly good
[00:55] <DL7AD> yep
[00:56] <LeoBodnar> log is actually being recorded but not transmitted
[00:56] <LeoBodnar> if you get the balloon and hot-read RAM you'll get it back Sven :D
[00:57] <LeoBodnar> yes seem to be holding up OK
[00:57] <DL7AD> hm...? ah... you dont have enough ram because its needed for contestia?
[00:57] <amell_> not far to georgia - 45mins.
[00:57] <LeoBodnar> there is plenty of RAM, i am just not transmitting the log
[00:58] <LeoBodnar> Contestia is block based mode so code needs to be changed to account for that
[00:58] <DL7AD> hmpf...
[00:59] <LeoBodnar> i am chiseling in assembler you know
[00:59] <DL7AD> hm... i do
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[01:05] <DL7AD> some days ago they local news wrote an article about the 3G network on the mout everest... ;)
[01:05] Nick change: Insomniac_ -> G8APZ
[01:06] <G8APZ> DL7AD I wonder who goes up the mountain to maintain the masts!
[01:06] <G8APZ> perhaps they use PAs and yagis to aim 2.4GHz at the summit
[01:07] <LeoBodnar> is 3G 2.4GHz?
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[01:08] <LeoBodnar> or is it for trunking?
[01:09] Action: Laurenceb zzz
[01:09] <DL7AD> LeoBodnar: no not 2.4ghz
[01:10] <G8APZ> B-41 within radio range of Sochi and a new DXCC Georgia!
[01:10] <DL7AD> LeoBodnar: http://en.wikipedia.org/wiki/UMTS_frequency_bands
[01:10] <G8APZ> 3g probably 1.8GHz
[01:10] <LeoBodnar> yeah, I'd like to bag Georgia
[01:10] <G8APZ> You missed Ukraine and Crimea :-(
[01:10] <LeoBodnar> sadly it will miss Armenia
[01:11] <G8APZ> but Turkey may be a new one?
[01:11] <daveake> I invaded Ukraine earlier this year
[01:11] <LeoBodnar> B-11 ended up over Turkey
[01:11] <daveake> ok last year
[01:12] <G8APZ> daveake on a HAB mission or on a drinking spree?
[01:12] <DL7AD_> G8APZ: no we already had turkey
[01:12] <G8APZ> RR
[01:12] <LeoBodnar> either is worth it
[01:12] <G8APZ> Yes!
[01:13] <G8APZ> LeoBodnar I hope you removed all the insignia from the balloon!
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[01:14] <LeoBodnar> i definitely haven't had any
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[01:15] <G8APZ> I read lots on the Malay flight disappearance... what a mystery
[01:16] <G8APZ> cannot believe that no military primary radars didn't react to it...
[01:17] <G8APZ> and that secondary squawks can be switched off
[01:18] <LeoBodnar> i have 777 transponder head unit on my desk at work
[01:18] <LeoBodnar> to show people how it works
[01:19] <G8APZ> seems daft to me to enable it to be switched off when in flight
[01:19] <LeoBodnar> personally i think the captain should be in full control of the plane electronics
[01:20] <LeoBodnar> he's not a bus driver
[01:20] <G8APZ> LeoBodnar I assume it is a low power TX with numeric squawk codes selected from cockpit
[01:20] <LeoBodnar> yeah
[01:21] <G8APZ> LeoBodnar Given that the transponder is for ATC to know where planes are, it seems wrong to allow it to be switched off
[01:21] <LeoBodnar> you can just as well argue captain should not be able to switch engines in-flight, pull the fuses or turn the landing lights on
[01:22] <LeoBodnar> you can argue both ways, there are tonnes of reasons why it might need to be turned off
[01:23] <LeoBodnar> it can malfunction
[01:23] <G8APZ> LeoBodnar well one could... but I cannot envisage any situation when a transponder needs to be off
[01:23] <LeoBodnar> there are two to start with
[01:23] <G8APZ> OK
[01:23] <aadamson> You have to be able to switch if off when you are on the ground so that the flight radar isn't full of ground based airplanes.
[01:23] <LeoBodnar> so naturally you turn one off and trn another on
[01:23] <G8APZ> yes, I suppose with malfunction and possible interference with other avionics
[01:23] <aadamson> sometimes thay have ground sensing switches that do that, but just depends on the airplane
[01:24] <LeoBodnar> i have never heard that switch would turn xponder off
[01:24] <aadamson> with ADS-B my transponder automatically turns off
[01:24] <aadamson> when the airspeed is below a certain level
[01:24] <G8APZ> aadamson yes... on the ground I agree...
[01:24] <aadamson> actually it switches to ground mode
[01:24] <LeoBodnar> ah ok
[01:25] <aadamson> and yes, there are *squat switches* that turn them off for that exact reason at large airports so that ground control and flight control are full of ground airplane
[01:25] <G8APZ> aadamson I often look at Flight24 and see aircraft pass my location and watch them go into Stansted... and then they disappear when at end of runway
[01:26] <aadamson> there is actually a new ground system with ADS-B so that in some airport with *non visual ground locations*, that a separate track can be had for the airplanes not interfereing with flight radar
[01:26] <G8APZ> maybe no trackers in reception range, but I assumed they switched off on the ground
[01:26] <LeoBodnar> that's usually the procedure
[01:27] <LeoBodnar> they are turned after take off clearance and turned off during after lading checklist
[01:27] <aadamson> most of the newer transponders actually do the switch to *stand by* automatically, so
[01:27] <G8APZ> I watched TV programme this evening... all theories and no answers
[01:27] <aadamson> yes my in my C-182 with glass cockpit actually turns itself on and off automagically
[01:27] <aadamson> I only have to remember to set the sqwak code
[01:28] <aadamson> Garmin avionics have been doing that for some time - granted what was in this airplane *wasn't* garmin, but non-the-less, you need an *off* switch
[01:29] <aadamson> my theory is that something happened, probably fire related, took out the avionics and probably the o2 ssystem and I'll bet if we every find this thing that it will be hypoxia that ultimately secummed the pass/crew
[01:29] <LeoBodnar> what make is the glass stuff?
[01:29] <aadamson> garmin
[01:29] <aadamson> G-1000
[01:29] <LeoBodnar> oh! :D
[01:30] <G8APZ> Last year in my French QTH, there was a very low flying Airbus... I could have had a good photo if my camera was ready!! I logged on to Flight Radar24 and it was an experimental flight from Toulouse
[01:30] <LeoBodnar> we make these: http://emuteq.com/
[01:30] <aadamson> nice.
[01:30] <G8APZ> aadamson I think you are close ... but why did it go to 46,000ft?
[01:30] <SIbot> In real units: 46,000 ft = 14 km
[01:30] <aadamson> my experimental has this in it :) - if I can find the picture
[01:30] <G8APZ> shut up sibot!
[01:31] <LeoBodnar> i am not sure what 777 does when it trimmed but smaller planes tend to drift in altitude
[01:32] <LeoBodnar> so it could have just drifter up if nobody was at the controls
[01:32] <LeoBodnar> *d
[01:32] <G8APZ> yes.. I suppose, but what was the autopilot heading for and what alt?
[01:32] <LeoBodnar> if AP is off of course
[01:33] <LeoBodnar> plane can fly reasonably stable without AP turned on but it will drift off
[01:34] <aadamson> https://dl.dropboxusercontent.com/u/6730484/DSCN1902.jpg
[01:34] <G8APZ> The Toulouse experimental flight was checking on low level fuel dumping over the Bay of Biscay... and did two circiuts... using a squawk code for RAF Cranwell!!
[01:35] <LeoBodnar> nice aadamson !
[01:35] <aadamson> it's really hard to tell on the altitude stuff, I think at the end of the day, they are going to find that it actually didn't go to that altitude, that it was some artifact of the radar, etc. I suspect it travelled into no-mans land on AP and finally ran out of fuel.
[01:36] <LeoBodnar> oh, is 14,000 is radar return?
[01:36] <aadamson> Thanks LeoBodnar yea, I made one change I dropped the electric attitude indicator and put in a small 3" digital attitude indicator, but either way it's IFR certified and has 3 axis autopilot :)
[01:36] <LeoBodnar> i reckon it flew trimmed but without AP
[01:37] <aadamson> I honestly don't know how they know it went to 40someoddthousand feet.
[01:37] <G8APZ> I think so too. I think it may have had an inflight emergency, turned to head for a field to land on, and perhaps no persons able to react.
[01:37] <aadamson> The critical altitude in the airplane isn't certified for that height anyway I don't believe
[01:37] <aadamson> yes I suspect the turn was emergency related and with no comms they could tell anyone.
[01:38] <aadamson> It was full of lipos in the cargo hold btw
[01:38] <aadamson> ... the one thing that *is* a mystery however... why no epirb on impact
[01:38] <aadamson> there should have been at least 2 and perhaps 4 of them
[01:38] <LeoBodnar> BBC said "LiPos are unstable at altitude" oh dear...
[01:38] <G8APZ> epirb???
[01:39] <LeoBodnar> they went down within milliseconds
[01:39] <G8APZ> LeoBodnar Lipos are stable at 8km!!
[01:39] <aadamson> http://en.wikipedia.org/wiki/Distress_radiobeacon
[01:39] <G8APZ> OK Thanks
[01:39] <aadamson> epirbs have the ability to use a ghz frequency and provide gps coords to satellites, they are a million time better than ELT's ;)
[01:39] <LeoBodnar> i don't believe 405MHz works through even 10 feet of water
[01:39] <SIbot> In real units: 10 ft = 3.05 m
[01:40] <LeoBodnar> grr
[01:40] <aadamson> This is just something that I heard... but the *black* boxes have something *don't know what* that is suppose to be able to transmit and be heard through 3000 ft of *even water*... seems a little crazy, but who knows what we have up in space
[01:40] <SIbot> In real units: 3000 ft = 914 m
[01:41] <LeoBodnar> don't they use sonars?
[01:41] <G8APZ> only sonar or VLF works through water!
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[01:42] <aadamson> but yes, unless the impact was very shallow however, I suspect the craft broke apart and as such you'd think that and ELT or epirb would have got a signal off before it sunk
[01:42] <aadamson> yeah, it's perhaps sonar and sonoboys would be used to find it... I don't know
[01:42] <aadamson> was news to me
[01:42] <G8APZ> epirb should detach easily and not be embedded in the bowels
[01:43] <aadamson> the other half of the problem. In deed it's probably in some *really remote* part of the world and I'm not sure that routinely, sats would have coverage for that. Although they also are used by shipping so I may be wrong
[01:43] <G8APZ> vast ocean and no clues
[01:45] <aadamson> my prediction is draw a straight line from the turn for 7+ hours and that's where it will be... At 30-40k feet, you don't have very long to get down to an O2 altitude... and if they thought their O2 masks were working and they weren't.... well, we'll see, but thats my thinking
[01:45] <G8APZ> I feel you are correct in your hypothesis that it went on flying without anyone able to react, and having run out of fuel, it ditched... wreckage may be hard to find if nose dived
[01:45] <aadamson> what is it.... something called occams razor :)
[01:45] <G8APZ> O2 should last in a controlled dive
[01:46] <aadamson> it should unless the *event* damaged it immediately and the flight crew didn't recognize that
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[01:47] <aadamson> "when you have two competing theories that make exactly the same predictions, the simpler one is the better."
[01:47] <aadamson> all the conspiracy is just good for ratings... and bad on the families :(
[01:47] <G8APZ> If the event was noxious fumes and smoke....
[01:47] <aadamson> I'm not sure what the byproducts lipo's at altitude might be
[01:48] <aadamson> I know they are really bad around *water* if any form of breach occurs
[01:48] <LeoBodnar> I like Hanlon's razor: "Never attribute to malice that which is adequately explained by stupidity."
[01:48] <G8APZ> puzzled @ deliberate switch off of avionics and no radio to ground
[01:48] <nats`> http://gp-radar.com/
[01:48] <nats`> oups
[01:48] <aadamson> LeoBodnar, that would be me!!! :)
[01:48] <LeoBodnar> heh and me
[01:48] <LeoBodnar> and a lot of people i know
[01:49] <aadamson> I'll bet if we ever find out.. .the radio switch wasn't really a switch, but a catastropic failure.... OR, pilot error in diagnosing the *event*
[01:49] <aadamson> it wouldn't be the first time the *gear switch was put in the retracted position* while the airplane was setting on the ground if you know what I mean'
[01:50] <G8APZ> the railways solved this 150 years ago with signals and interlocks
[01:51] <LeoBodnar> no single crash since then...
[01:52] <aadamson> it's a double razor problem... you can't stop people from doing things when it's an emergency that are normal and routine when it's not.
[01:52] <LeoBodnar> as always in aviation a catastrophe is a combination of several incidents in one place at the same time
[01:52] <G8APZ> well yes.. but the signals and points cannot be set wrongly
[01:53] <G8APZ> humans can override the signals by falling asleep!
[01:53] <aadamson> sheesh, we had one of those list last fall...
[01:54] <G8APZ> BA 777 landed short at LHR due to fuel problems... allegedly... like duff fuel or water in fuel
[01:54] <aadamson> you know, when people talk about disappearing airplanes that crash, they forget about the valuejet that crashed in the everglades
[01:55] <aadamson> if it weren't for the markings in the swamp, no-one would have known and that one was from O2 canisters so Lipo isn't out of the question
[01:55] <LeoBodnar> oh! cylinders!
[01:55] <G8APZ> aadamson ... early morning commuter train... driver fell asleep and went off tracks
[01:55] <LeoBodnar> *canisters
[01:55] <LeoBodnar> how can one forget
[01:56] <aadamson> hehe... hey, your batts are getting a tick warmer as it comes further south :)
[01:56] <aadamson> course when it's -41C who's counting
[01:56] <aadamson> -46C
[01:56] <aadamson> duh
[01:57] <aadamson> oh, and welcome to Georgia - oh wait, that's where I live and this one is on the opposite side of the northern hemisphere!
[01:57] <G8APZ> Lipo should be banned from cargo holds until some way can be found to stop them exploding or combusting! My wife had an Archos device and the Lipos swelled so much for whatever reason that the case malformed and failed
[01:57] <aadamson> you heard the stories about kids putting iphones in their back pocket and them catching on fire right?
[01:57] <LeoBodnar> Sweet Georgia, yay
[01:57] <G8APZ> Georgia on my mind!
[01:57] <nats`> Lipo are already a limited cargo stuff
[01:57] <LeoBodnar> bingo
[01:58] <nats`> they need to be new and without damage to be on a airplane
[01:58] <aadamson> Yeah, there were being shipped from manufacture to somewhere in china
[01:58] <aadamson> and from the sounds of things is was a bunch of them
[01:58] <LeoBodnar> hmm
[01:59] <G8APZ> B-41 taking its time to clear land and into Black Sea and Turkey
[01:59] <LeoBodnar> Boeing just does not like LiPos
[01:59] <G8APZ> shedloads on a flight TO China?
[01:59] <aadamson> and I think it's due to turn to the east right, earlier the predictions were for a west turn, but now the other way around
[01:59] <LeoBodnar> maybe a product recall?
[01:59] <G8APZ> Boeing had bad experience with Dreamliners
[02:00] <LeoBodnar> East? really?
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[02:01] <LeoBodnar> let me run hysplit again
[02:01] <aadamson> http://predict.habhub.org/#!/uuid=705186dbf9d11e31cfaf487ed7ae5e3d864e6721
[02:01] <aadamson> thats for a 8000mtr flight
[02:01] <aadamson> not sure when it's winds were updated
[02:02] <aadamson> this afternoon (atlanta time) it was headed back home with a big western turn... but now it's going to see the *mountains*
[02:03] <LeoBodnar> i get this http://ready.arl.noaa.gov/hypubout/136113_trj001.gif
[02:03] <G8APZ> Maybe Georgia is still a possibility
[02:04] <G8APZ> as long as the mountains are less than 8km in height.. all OK
[02:04] <aadamson> looks like hysplit and habhubs predictor are pretty close
[02:05] <aadamson> I suspect at 8km that's its good for mountains, but the updrafts and down drafts might be brutal
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[02:06] <aadamson> but it might see the iranian desert too... probably full of extremes and somehow I don't think there is aprs in iran :)
[02:07] <G8APZ> Iran... what a joke!!
[02:07] <LeoBodnar> yeah updrafts killed a few Bs
[02:07] <G8APZ> Mullahs... let's appeal to their sense of humour!
[02:08] <aadamson> you are going to need to do one with that STX3 module on it so we can *track it anywhere* ... (assuming you have $100 to throw away for science) :)
[02:10] <G8APZ> STX3 would have been a useful addition to MH370
[02:10] <aadamson> it has them, on each engine
[02:10] <aadamson> :)
[02:10] <G8APZ> and that's how the pings were detected?
[02:10] <aadamson> but they weren't connected to gps and only responded with *service me or in this case I'm ok* pings
[02:10] <aadamson> yes
[02:11] <aadamson> and they knew the aircraft was moving because the RTT to the satellite was getting longer between transmissions
[02:11] <aadamson> not rtt
[02:11] <aadamson> but timestamp to rx timestamp
[02:11] <G8APZ> and for the extra few characters of telemetry... why not send them with the ack
[02:11] <aadamson> I think all those things a sync via time
[02:12] <aadamson> that's the little secret, this airplane hadn't received some avionics upgrade which would have done that
[02:12] <aadamson> I'm not sure if it was due or not, but it didn't have it
[02:12] <G8APZ> I imagine a ping... response is Ack 51N 28W or so
[02:12] <aadamson> not a secret btw, just came out today or yesterday (i guess someone thought it was a secret) :)
[02:13] <aadamson> yeah, one thing for sure... you can bet the the plane manufacturers now have lots of upgrades to sell
[02:13] <aadamson> and put in new airplanes
[02:14] <aadamson> ah there's the west turn on spacenear.
[02:14] <aadamson> well it was there
[02:14] <G8APZ> for sure, they must do something to enable investigators to home in on a crash
[02:14] <aadamson> until the last telem update :(
[02:14] <aadamson> aprs to spacenear seems to be a little wonky or it's delayed updates that are messing with it
[02:16] <aadamson> LeoBodnar, are you thinking that you are hitting the shutdown voltage at night - given the cold temps, etc?
[02:16] <LeoBodnar> i think it is set at 3.45v now
[02:17] <LeoBodnar> so long way off
[02:17] <aadamson> it hasn't had a full coverage night so no way to tell, maybe today/night this will happen
[02:17] <aadamson> was just looking at telem on aprs
[02:18] <aadamson> this is the lowest voltage tracked I think
[02:18] <aadamson> but it is amazing how well those 2 little solar panels do to charge that battery
[02:18] <aadamson> and *dang* fast too
[02:19] <G8APZ> aadamson lowest voltage I saw recently was 1.03 on G-02
[02:19] <aadamson> ah, yes on the single cell side
[02:19] <G8APZ> not sure if buck or what but it died at that volts!
[02:20] <aadamson> B-41 is using a 3.7v 1S lipo
[02:20] <aadamson> Upu's flight a while back went to .8 or lower I believe,
[02:20] <aadamson> but that is a 1.8v boost controller
[02:20] <aadamson> the G-02 was a buck I'm pretty sure
[02:20] <G8APZ> G-02 was 2x1.5
[02:20] <aadamson> it may have been both actually
[02:21] <aadamson> hmmm
[02:21] <aadamson> I was thiking the cpu voltage on g-02 was 1.8, but it may have been 3.3 the adc voltage was 1.6x and that is sometimes 1/2 vcc
[02:21] <aadamson> anyway, yes I saw that go to 1.x
[02:22] <G8APZ> anyhow... I think LeoBodnar and the B-** series have cracked pico battery existence
[02:22] <aadamson> I think LeoBodnar normal 1 cells go well below that actually
[02:23] <G8APZ> LeoBodnar and 12gram picos with 36" balloons are incredible!!
[02:23] <aadamson> i do find one thing pretty interesting... 10mw though the 433 match/lpf to a 1/4 way 144mhz vertical at 8km has amazing erp :)
[02:24] <aadamson> the aprs receive stations is outside the footprint in *turkey* :)
[02:25] <G8APZ> actually the 2m/70cm shared dipole is not that good... I fail to receive when I can receive other GP equipped flights over the horizon
[02:27] <G8APZ> the effective erp must be at least 3dB or more down on a straight GP
[02:28] <G8APZ> B-41 still not clear of land.. unsure what Turkey offers on APRS
[02:30] <G8APZ> This is the alternative to SNUS > http://habmap.philcrump.co.uk/?filter=b-41
[02:31] <Darkside> or http://habitat.habhub.org/mobile-tracker/
[02:32] <G8APZ> LeoBodnar is into Georgia?
[02:36] <nats`> good night boyz
[02:37] <G8APZ> nats' Goodnight
[02:39] <Darkside> https://www.youtube.com/watch?v=wsIbfYEizLk
[02:39] <Darkside> relevant
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[02:41] <G8APZ> Darkside ... hey there georgy girl
[02:41] <LeoBodnar> sunrise at B-41 altitude in 15 minutes
[02:42] <G8APZ> LeoBodnar Battery rechrge in 6 hrs?
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[02:43] <LeoBodnar> perhaps, we haven't seen a full cycle yet
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[02:44] <G8APZ> Judith Durham New Seekers Georgy Girl
[02:45] <G8APZ> LeoBodnar seems that the solar cell and the lipo are working well...
[02:47] <G8APZ> B-41 soon to leave Russian airspace
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[02:47] <aadamson> good call LeoBodnar solar is just ticking up
[02:48] <LeoBodnar> must be beautiful sunrise up there
[02:49] <aadamson> yeah, can't ya just picture it peaking over the curvature of the earth :)
[02:49] <aadamson> opps, careful this is a g-rated channel right :)
[02:50] <G8APZ> yes... it must be... local cops flying helicopter near here... must be another incident
[02:50] <aadamson> another advantage of aprs.... way better on battery power :)
[02:50] <aadamson> never got even close to needing to go to shutdown
[02:51] <G8APZ> almost 3am and a chopper is flying low
[02:51] <aadamson> we had one of those a week ago or so... swat team with domestic violence.
[02:51] <aadamson> too bad the didn't need to shoot the guy doing it :(
[02:51] <G8APZ> here they fly in response to car chases
[02:52] <aadamson> ah, we have fox news for that :)
[02:52] <LeoBodnar> Here BBC cover fox news
[02:52] <LeoBodnar> +s
[02:53] <G8APZ> we are just outside Greater London... and the lowlife sometimes see this area as a soft touch!
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[02:57] <G8APZ> Almost 3am here and I need sleep! Another HAB launch tomorrow... Goodnight all
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[02:58] <LeoBodnar> good night!
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[02:59] <G8APZ> B-41 leaves Russia in next 10 minutes.. good luck
[03:00] <G8APZ> ============ GONE =================
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[03:02] <LeoBodnar> Hopefully Georgia != Russia still
[03:03] <aadamson> well as off today that's true, but you never know about tomorrow or the next
[03:06] <aadamson> there goes the neighborhood... solar coming on strong now :)_
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[03:07] <aadamson> wonder how many *radar* blips it's taken in that part of the world... or better, how may flight intercepts due to the radar hit ;)
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[03:09] <g0pai_ian> A couple of days ago on the TV they were claiming that the only cargo on MH370 was mangostines.
[03:14] <aadamson> they changed that today or yesterday ... Lithium ion batteries
[03:14] <g0pai_ian> Ah, so it will be more and more difficult to get them in the future by the sound of it.
[03:16] <g0pai_ian> B-41 out over the oggin. Time for bed, Gnite. bbl
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[06:39] <cm13g09> LeoBodnar: you're rather good at these aren't you!?
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[07:04] <LeoBodnar> heh thanks
[07:04] <jcoxon> LeoBodnar, great work with B-41
[07:05] <LeoBodnar> ta James
[07:06] <jcoxon> where will it go next?
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[07:07] <LeoBodnar> eastwards, need to run hysplit now
[07:09] <LeoBodnar> did you get all nodes working?
[07:10] <LeoBodnar> http://ready.arl.noaa.gov/hypubout/141902_trj001.gif
[07:12] <jcoxon> LeoBodnar, yes thanks
[07:12] <jcoxon> doing a workshop today
[07:12] <LeoBodnar> good luck!
[07:14] <cm13g09> LeoBodnar: so... how long do you think B-41 will survive?
[07:16] <LeoBodnar> it depends on today's result - whether it will survive solar irradiation at this latittude
[07:16] <LeoBodnar> 48h http://ready.arl.noaa.gov/hypubout/142161_trj001.gif
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[07:23] <cm13g09> fair enough LeoBodnar
[07:24] <jcoxon> much aprs in Iran
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[08:17] <fsphil> morning all. at the launch site
[08:18] <daveake> morning launch site
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[08:19] <mikestir> what time for launch fsphil?
[08:20] <amell> i see B-41 in turkey now and headed for mongolia
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[08:24] <fsphil> mikestir: at this rate, before 9
[08:24] <fsphil> sorry to be ahead of schedule :)
[08:24] <amell> aadamson: black box uses ultrasound pinging, acoustic not RF. 37.5kHz ping every second. Some have 10kHz as well for extra range.
[08:24] <daveake> this'll never do
[08:24] <amell> fsphil: looking for your predict.
[08:25] <mikestir> fsphil: is that due to exceptional efficiency or deteriorating predictions?
[08:25] <daveake> or, they're trying to launch before the meeedia get there
[08:26] <amell> which call sign is fsphil launching?
[08:26] <amell> i don't see anything
[08:26] <daveake> HIPI
[08:26] <amell> cooks town - ah. thought that was the one in queensland :)
[08:26] <daveake> Frequency: 434.250 MHz
[08:26] <daveake> Mode: RTTY 300 baud 8N2
[08:27] <daveake> Prediction: http://predict.habhub.org/#!/uuid=f2dbeba964077e9c6fd4ab5b90f5036bf49bccbb
[08:28] <amell> daveake: sure thats right? it just blows out to the atlantic
[08:28] <daveake> Though, as a floater, it could go anywhere :)
[08:28] <amell> that prediction says it will land in greenland
[08:28] <daveake> That's fsphil's prediction updated for launch time and latest data
[08:28] <amell> need a floater prediction
[08:29] <daveake> Tru, though this isn't going to get tracked for long if it goes west
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[08:29] <amell> i don't get. why launch something that blows out west?
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[08:30] <mikestir> should just fill it a bit more and try and land it in england
[08:31] <amell> B-41 battery looks to be fully charged again now.
[08:33] <Upu> amell because whilst its in range its transmitting live images
[08:33] <Upu> http://ssdv.habhub.org/
[08:33] <amell> ah. exciting
[08:36] <amell> picture coming through now
[08:36] <amell> looks dark
[08:37] <Upu> lol
[08:37] <Upu> many of the first pictures are "in the boot of a car" "someones groin"
[08:41] <amell> i think its a car back seat. hard to tell
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[08:45] <nats`> hi
[08:47] <fiftydollarsat> Well good morning
[08:51] <Upu> morning fiftydollarsat
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[08:55] <fiftydollarsat> Just finished building another working model of $50SAT, there are now 4 of these little things.
[08:56] <Upu> did you mod the RFM22B in anyway ?
[08:57] <fiftydollarsat> Not at all, why would you want to ?
[08:57] <Upu> lol
[08:58] <Upu> because in our experience under balloons we've had them hang, freeze up , stop working below -20'C
[08:58] <Upu> this isn't just a one off
[08:58] <Upu> you'll note most people who use them have code to reset them every 5 mins
[08:58] <Upu> I was the person who send a mail to you advising not to use them
[08:58] <Upu> I have been proven completely wrong mind
[08:59] <Upu> just don't understand how its been so reliable when under balloons on long duration flights there was nearly 100% failure rate
[08:59] <Upu> Also the onboard crystal is only rated to -20'C
[08:59] <Upu> so thought you may have swapped that out
[09:00] <fiftydollarsat> Well as $50SAT has been cycled from circa -30C to +30C around 14 times a day, we can assume its reliable.
[09:00] <Upu> yeah this is what I don't get
[09:01] <Upu> anyway they are eol
[09:01] <Upu> so that as well
[09:01] <fiftydollarsat> Frequency drift when cold (-25C) is only about +2400hz.
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[09:01] <Upu> you can actually make your own radio based on the SI chips its very simple
[09:02] <Upu> in fact I've moved from the RFM22B to this now
[09:02] <fiftydollarsat> which is a tiny amount when you have to cope with +\- 10khz of doppler.
[09:02] <Upu> I know I wasn't the only person to raise an eye brow we found out you were sending one of those into orbit
[09:02] <Upu> but hey it works
[09:03] <Upu> awesome work :)
[09:03] <fiftydollarsat> And the (PICAXE) code for $50SAT is very defensive, the RFM22B is reset every time the program goes around the beacon loop via the SDN pin, the init does not take long.
[09:04] <Upu> no its pretty quick
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[09:05] <fiftydollarsat> So it the RFM22B gets set up about once every 1-2mins, then the program initiates a short power down around every 5 hours.
[09:05] <fiftydollarsat> And after every transmission, a check is made to see in the RFM22B has suffered from the 'smart reset' problem.
[09:06] <mikestir> oh, the "smart reset" problem from the picaxe list that is actually just poor power layout?
[09:06] <Upu> I know the core SI aka RF22 chip has no issues
[09:06] <Upu> its the low quality crap HopeRF put round it thats the issue
[09:06] <Upu> also it could benefit from a TCXO
[09:07] <Upu> I have considered making a pin for pin RFM22B replacement but with a TCXO
[09:07] <Upu> as you doing RX on it or just TX ?
[09:08] <fiftydollarsat> Upu: Used to the raised eybrows, lots of people said it would\could not work, but we did all the sums and Proff Twiggs seemed happy enough.
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[09:08] <Upu> well its not about sums :) In theory sure it should work
[09:08] <Upu> just our experience in practice
[09:08] <Upu> I'm just wondering if you've got lucky or we have been doing something wrong
[09:09] <Upu> that said it probably gets colder under the balloons
[09:09] <mikestir> Upu: are the two crystal versions both equally bad?
[09:09] <Upu> I only used the SMD versions
[09:09] <mikestir> most of mine are the SMD, but I have a few with the leaded one
[09:09] <mikestir> they are all 868 though
[09:10] <Upu> just for clarity on normal up/down flights they are a bit drifty but fine
[09:10] <fiftydollarsat> upu: Lucky, I dont think so, my collegue in the US did run it through a fair bit of temperature cycling in a chamber.
[09:10] <Upu> where you get cold soak they just drop dead
[09:10] <Upu> on at least 4 occasions
[09:10] <Upu> fair enough fiftydollarsat maybe we got unlucky
[09:10] <fiftydollarsat> And then of course the other RFM22B one worked well enough for two months or so.
[09:11] <fiftydollarsat> My suspicion is that condensation is the issue, that could well cause problems, you would expect it really.
[09:11] <bertrik> maybe the tx power level makes a difference?
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[09:11] <Upu> we were only running at 10mW so possibly
[09:12] <fiftydollarsat> And of course, there is no moisture in space.
[09:12] <Maxell> B-41 in Turkey \o/
[09:12] <Maxell> Will HIPI fly first?
[09:12] <Upu> yeah
[09:13] <Maxell> Ok, will confiure remote setup here
[09:13] <bertrik> wow, go B-41!
[09:13] <fiftydollarsat> 100mW, possibly, the Si4432 does warm up quite a bit, not difficult to test on course, the internal temp sensor will tell you.
[09:13] <Maxell> HIPI Cookstown dial 434.250MHz 300 baud 350Hz shift 8N1.5 RTTY
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[09:14] <fiftydollarsat> How long does the 50baud RTTY TX last, we use 100baud and its on for about 7 seconds.
[09:14] <VK2FAK> Just testing
[09:15] <Upu> sucesss VK2FAK
[09:15] <Darkside> VK2FAK: QSL de VK5QI
[09:15] <Upu> well depends on the length of telemetry string but 15s ish
[09:16] <Upu> fiftydollarsat do you want the radio circuit for this : http://i.imgur.com/v3sg93U.jpg
[09:16] <Maxell> bertrik: RevSpace's setup is configured, I might not be able to do the tracking
[09:16] <Upu> its pretty much identical to the RFM22B (TX only though) with a TCXO
[09:17] <fiftydollarsat> mikestir: Yes, poor layout, long supply wires to battery, and inadequate supply regulation can indeed cause the Si4432 to reset, due to the so called 'smart reset' function (not).
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[09:17] <mikestir> it's a so called brownout detector
[09:18] <mikestir> and if your decoupling is inadequate the rail dips when the tx comes on
[09:18] <mikestir> it's performing as designed
[09:18] <fiftydollarsat> And if you dont have access to the SDN pin, whilst you can detect the problem by checking if the frequency setting registers have changed, there is not a lot you can do about it.
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[09:19] <mikestir> if it happens at all you have a hardware problem
[09:19] <fiftydollarsat> mikewstir: Yep, less of a problem at 10mW mind.
[09:20] <Maxell> yay SSDV :) http://ssdv.habhub.org/
[09:20] <fiftydollarsat> And for the record we have yet to record any instance of the 'smart reset' problem on $50SAT, so far.
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[09:20] <mikestir> no, I've never seen it either on anything I've used them on
[09:20] <amell> he got it out the car
[09:20] <mikestir> RFM23 mainly, but several RFM22B at 100mW as well
[09:21] <g0pai_ian> UKC_WTM5 QRG?
[09:22] <Upu> 434.125Mhz when its up
[09:22] <g0pai_ian> tnx
[09:22] <fiftydollarsat> The 'openLRS' guys see what I think is a related problem, when they use a simple 1\4wave vertical antenna (not a good match withou radials) , the transmissions can cause the RC transmitter to go offline.
[09:25] <fiftydollarsat> This is the $50SAT prototype, it suffered from the 'smart reset' problem;
[09:25] <fiftydollarsat> https://www.dropbox.com/sh/l3919wtfiywk2gf/vYci9JKqUs/Pictures#lh:null-Breadboard%20of%20%2450SAT.jpg
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[09:26] <Upu> still confused but hey ho :)
[09:26] <mikestir> where in all that is the RFM?
[09:26] <Upu> haha you actually used the tape measure antenna on the live thing ?
[09:27] <fiftydollarsat> mikestir: ZIF socket far left.
[09:27] <mikestir> yeah, so terrible RF layout and presumably no additional decoupling?
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[09:28] <Upu> Hipi is up
[09:28] <fiftydollarsat> upu: Sure we used tape measure, no need for any complex antenna deplyment setup, it just went 'boing' when it came ot of the tube.
[09:28] <Upu> thats amazing
[09:28] <Upu> love it
[09:29] <Maxell> all cubesats seem to do that, and it seems to work :P
[09:30] <mikestir> hipi up
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[09:30] <mikestir> oh. snap Upu
[09:30] <fsphil> we've launched
[09:30] <fiftydollarsat> Just imagine the tape measure folded back along the body of the SAT and it stuffed in a square tube about 60mm square, hard for the antenna not to deploy when it comes out.
[09:30] <Upu> noted fsphil
[09:30] <Upu> yup
[09:31] <amell> there she blows
[09:31] <Upu> won't get it until 15km due to hills
[09:31] <amell> looks cloudy
[09:31] <amell> seems to be in clouds at the moment
[09:33] <Upu> cleared them
[09:33] Nick change: mikestir -> mikestir_2E0MXS
[09:33] <Upu> images will get better with more recievers
[09:33] Nick change: Upu -> Upu_M0UPU
[09:33] <Upu_M0UPU> :)
[09:34] <Upu_M0UPU> I struggle with Phil's launches
[09:34] <Upu_M0UPU> as there is a large hill behind me
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[09:35] <LeoBodnar> Upu_M0UPU: are you testing or sneaking one in?
[09:35] <Upu_M0UPU> testing
[09:35] <Upu_M0UPU> its pretty much ready
[09:36] <Steve_G0TDJ> Good Morning Guys :-)
[09:36] <Upu_M0UPU> morning Steve
[09:36] <Upu_M0UPU> don't worry will advise :)
[09:36] <Upu_M0UPU> the panel is at work
[09:36] <mikestir_2E0MXS> fsphil: have you got an accurate dial freq?
[09:37] <LeoBodnar> heh ok
[09:37] <LeoBodnar> morning Steve
[09:37] <Steve_G0TDJ> Hey Leo :-)
[09:38] <Upu_M0UPU> 434.4975 isn't going to cause any issues with your frequency is it ?
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[09:38] <Steve_G0TDJ> Upu_M0UPU: Are you launching today?
[09:39] <Upu_M0UPU> don't think so
[09:39] <Steve_G0TDJ> OK No worries
[09:39] <Upu_M0UPU> just getting a payload ready may try tommorrow
[09:39] <Steve_G0TDJ> OK - LeoBodnar Congrats on another great flight
[09:39] <LeoBodnar> cheers
[09:40] <LeoBodnar> no it's fine! Upu_M0UPU
[09:40] <Upu_M0UPU> thought I might as well get it close to yours
[09:40] <amell> looks like a clean image coming through now
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[09:40] <LeoBodnar> sure
[09:41] <LeoBodnar> well you have precise reference now so can be very accurate :D
[09:42] <fiftydollarsat> Is that launch at Ross-on-Wye going ahead, I thought I might pop along for a look see, its not far from me ?
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[09:43] <Upu_M0UPU> Ask daveake fiftydollarsat
[09:43] <LeoBodnar> oh 300bps HIPI, aren't fsphil testing 1200+ speeds?
[09:44] <amell> good image of cloud tops at 1900m
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[09:45] <Steve_G0TDJ> I just caught up with the new - Is Phil launching soon?
[09:45] <Steve_G0TDJ> News....
[09:45] <amell> he's on his way up now
[09:45] <Steve_G0TDJ> Oh yes, *doh* I should have checked the tracker :-)
[09:46] <amell> http://ssdv.habhub.org/images/2014-03-22--09-39-52-HIPI-932.jpeg?u=36
[09:46] <Steve_G0TDJ> Nice
[09:47] <ibanezmatt13> float?
[09:48] <Upu_M0UPU> I'm just charging the battery atm LeoBodnar
[09:48] <LeoBodnar> cool
[09:48] <Steve_G0TDJ> Hey Matt :-)
[09:48] <ibanezmatt13> Morning Steve :)
[09:48] <Steve_G0TDJ> I'm looking forward to your launch tomorrow
[09:49] <ibanezmatt13> my launch?
[09:49] <Steve_G0TDJ> You're not? I thought you were elayed a week?
[09:50] <ibanezmatt13> Well, we were but we decided to wait for my Uncle's mate who's in USA at the mo who gave us the GoPro so he can come :P
[09:50] <Steve_G0TDJ> Oh! OK - Make sure I know when,
[09:50] <ibanezmatt13> Family politics :)
[09:50] <ibanezmatt13> Sure
[09:51] <db_g6gzh> Oh, another -ve ISH launch time 8-)
[09:52] <LeoBodnar> 1.5m/s ascent - nice
[09:52] <ibanezmatt13> I have a nice Westily view out of my window; could get some decodes today if it comes down here
[09:52] <LeoBodnar> in b4 meeja
[09:53] <LeoBodnar> fsphil should ask radio people to track the balloon for him
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[10:02] <amell> seems out of sequence.
[10:02] <amell> is that normal?
[10:02] G0WXI (568ba9a4@gateway/web/freenode/ip.86.139.169.164) joined #highaltitude.
[10:03] <LeoBodnar> days are longer than nights \o/
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[10:05] <Upu_M0UPU> lol
[10:05] <Upu_M0UPU> about time
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[10:06] <amell> leobodnar: when will you get sstv over aprs on one of yours?
[10:06] <Upu_M0UPU> heh
[10:07] <amell> i want to see pics from iran etc.
[10:07] <DutchMillbt> 'Good morning what is the expected burstaltitude for HIPI?
[10:07] <Upu_M0UPU> float DutchMillbt
[10:07] <LeoBodnar> i want to live a long and happy life
[10:08] <DutchMillbt> Aha thankz upu
[10:08] <fsphil> and home
[10:08] <fsphil> nice signal so far
[10:08] <DutchMillbt> so eat musli
[10:08] <Upu_M0UPU> yup getting the packets
[10:09] <amell> fsphil: nice and slow on way up. good pics
[10:09] <fsphil> you're not showing up on the list Upu_M0UPU
[10:09] <Upu_M0UPU> no I meant you
[10:09] <fsphil> ah
[10:09] <Upu_M0UPU> no chance for me until it climbs
[10:09] <fsphil> it should get fairly near you
[10:09] <fsphil> not as near as the earlier prediction
[10:09] <Upu_M0UPU> yup
[10:10] <mikestir_2E0MXS> fsphil: do you have actual dial frequency?
[10:10] <Upu_M0UPU> I'm just charging the battery on mine then I'll have a listen
[10:10] <mikestir_2E0MXS> I think I can see it
[10:10] <fsphil> mikestir_2E0MXS: my ft817 says 434.248.500
[10:10] <fsphil> +1924 Hz
[10:10] <mikestir_2E0MXS> sounds about right
[10:11] <mikestir_2E0MXS> still extremely faint, but still over the horizon
[10:11] <amell> mikestir: why does your call sign begin with 2?
[10:12] <Upu_M0UPU> 2E0 is intermediate license amell
[10:12] <mikestir_2E0MXS> amell: UK callsigns start with G, M or 2
[10:12] <Upu_M0UPU> well 2
[10:12] <Upu_M0UPU> E = england
[10:12] <amell> do i need advanced for G?
[10:12] <Upu_M0UPU> Phil would be 2I0VIM
[10:12] <Upu_M0UPU> G's are all taken
[10:12] <Upu_M0UPU> its M now
[10:12] <amell> advanced needed for M?
[10:12] <Upu_M0UPU> fsphil is MI0VIM as he's in N Ireland, I'm M0UPU
[10:12] <Upu_M0UPU> yes
[10:13] <mikestir_2E0MXS> M3 and M6 is foundation amell
[10:13] <fsphil> I had an option to register for a G* callsign on the ofcom website
[10:13] <mikestir_2E0MXS> M0 and M1 is full
[10:13] <Upu_M0UPU> to confuse matters M6UPU is my foundation
[10:13] <fsphil> but I believe most of them are taken
[10:13] <fsphil> I prefer the M* anyway
[10:13] <Upu_M0UPU> M0 full ?
[10:13] <mikestir_2E0MXS> full license
[10:13] <mikestir_2E0MXS> not full up!
[10:13] <Upu_M0UPU> ah ok lol
[10:14] Action: mikestir_2E0MXS is intending to do the may advanced exam
[10:14] <fsphil> so cold today
[10:14] <fsphil> why can't I launch on a nice day
[10:14] <Upu_M0UPU> We will be doing the UKHAS conference this year
[10:14] <fsphil> btw the knots where done by a school kid, so if it falls don't blame me ;)
[10:14] <LeoBodnar> i am 2E0TOY
[10:15] <Upu_M0UPU> and we hope to be offering the foundation exam again
[10:15] <Upu_M0UPU> reminds me fiftydollarsat still about ?
[10:15] <LeoBodnar> can you sit foundation again if you are advanced?
[10:15] <Upu_M0UPU> lol
[10:16] <Upu_M0UPU> I'll get you a paper if you want a refresher Leo
[10:16] <LeoBodnar> i need to brush up my ham skillz
[10:16] <fsphil> on NOW the sun comes out
[10:16] <fsphil> oh*
[10:16] <LeoBodnar> i have yet to make a QSO
[10:16] <LeoBodnar> or get a rig
[10:16] <fiftydollarsat> Yep.
[10:16] <mikestir_2E0MXS> definitely got HIPI on the waterfall
[10:16] <mikestir_2E0MXS> I'm quite pleased with that
[10:17] <Upu_M0UPU> Grab some cheapy Beofangs LeoBodnar
[10:17] <LeoBodnar> wilco
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[10:17] <LeoBodnar> if anything to stop club people laughing at me
[10:18] <Upu_M0UPU> I have 2 UV5R's I ordered from dx.com about 2 months ago
[10:18] <Upu_M0UPU> still not here
[10:18] <LeoBodnar> do they sell fake ones? just a shell
[10:18] <Upu_M0UPU> I doubt they will bother selling fake UV5R's they are only £30 each anyway
[10:18] <LeoBodnar> "oh i just dropped it on the way in..."
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[10:19] <LeoBodnar> ok
[10:19] <fiftydollarsat> Upu_M0UPU: Still here.
[10:19] <Upu_M0UPU> quick pm
[10:19] <LeoBodnar> i will challenge daveake to talk to me on air
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[10:28] <Rob_m0dts> HPI now here weak
[10:30] <mikestir_2E0MXS> $HHPI160,10:29:5v,54.4701,%.4346,244,12,4.6"BFD3
[10:30] <mikestir_2E0MXS> nearly
[10:30] <eroomde> i think i did a couple of vhf contacts in the couple of months after getting my license
[10:30] <eroomde> oh actually, we used the repeater to coordinate a chase once
[10:30] <mikestir_2E0MXS> green ssdv
[10:30] <eroomde> that's about the extent of my voice hamming
[10:31] <Upu_M0UPU> look at that cloud on image 30
[10:31] <LeoBodnar> hah nice, is it a chimney?
[10:31] <fsphil> the forecast said a chance of thunder later. wonder if we'll see that
[10:32] <eroomde> looks like a cumulonimbus head
[10:32] <fsphil> bit of a turn towards that other NI station
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[10:34] <fsphil> ascent rate is a wee bit high
[10:35] <fsphil> gpu temperature already quite nippy. 1.9C
[10:35] <Steve_G0TDJ> What's the link for the images guys?
[10:36] <fsphil> http://ssdv.habhub.org/
[10:36] <Steve_G0TDJ> Cheers Phil - Nice flight :-)
[10:37] <gonzo_> dial freq for HIPI?
[10:37] <bertrik> has anyone ever flown a camera on a pico floater?
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[10:38] <LeoBodnar> craag did i think
[10:38] <LeoBodnar> it's still in the tree
[10:38] <fsphil> gonzo_: 434.249
[10:38] <gonzo_> ta
[10:39] <Upu_M0UPU> damn hills
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[10:39] <fsphil> yea rob's getting it
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[10:39] <fsphil> those hills must be pretty tall
[10:39] <fsphil> hiya gi6isw. thanks for tracking
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[10:43] <Upu_M0UPU> nothing at all on the waterfall
[10:44] <fsphil> still at 434.249 + 1337 hz
[10:44] <fsphil> nice stable ntx2b
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[10:47] <fsphil> seeing a lot of 'unmergeable' errors
[10:51] <Geoff-G8DHE> B-41 6169Kms http://360.g8dhe.net/HAB_Flights/2014_Flights/B-41_20140318/B-41_Flight_Path_and_Profile.jpg
[10:53] <tweetBot> @G8DHE: HAB Update: B-41 has travelled 6169Km still going http://t.co/Tck2KEy8UQ #ukhas #hab #hamr
[10:54] <Upu_M0UPU> beaten SP9UOB-Tom's record
[10:56] <tweetBot> @G8DHE: HAB Update: HIPI flying from NI camera onboard track http://t.co/glAmAxPqAy images http://t.co/d90IGtC4F5 #ukhas #hab #hamr
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[10:57] <fsphil> 2 m/s ascent
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[10:58] <eroomde> fsphil: what size barron?
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[10:58] <eroomde> barroon*
[10:59] <fsphil> ye old 1600g
[10:59] <eroomde> ye floaty at that rate :)
[10:59] <fsphil> hope so
[10:59] <eroomde> fingers crossed
[10:59] <eroomde> lovely pics
[11:00] <fsphil> yea the clouds look much nicer from above than below
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[11:03] <LeoBodnar> would UV filter improve quality?
[11:04] <LeoBodnar> there are probably tonnes of good B+W UV filters on ebay now since proper film i dead
[11:04] <Steve_G0TDJ> Film isn't quite that dead Leo :-)
[11:04] <LeoBodnar> however i have heard Kodak released a new B&W emulsion
[11:05] <LeoBodnar> i hope so Steve_G0TDJ
[11:05] <LeoBodnar> i'm keeping 6x7 Mamiya for when electricity ends
[11:06] <Steve_G0TDJ> :-) Nice piece of kit
[11:06] <LeoBodnar> high density
[11:06] <LeoBodnar> Upu_M0UPU's engineers would approve
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[11:07] <Upu_M0UPU> haha
[11:07] <Upu_M0UPU> Can see it super faint on waterfall
[11:08] <Geoff-G8DHE> HIPI http://360.g8dhe.net/HAB_Flights/2014_Flights/HiPi_20140322/
[11:10] <Martin_G4FUI> Sorry, late to the party - what's the dial freq for HIPI?
[11:10] <Upu_M0UPU> 434.248
[11:10] <Martin_G4FUI> Ta - nothing here, so looks like a problem at my end ....
[11:10] <Upu_M0UPU> well could be a hill
[11:10] <Upu_M0UPU> I can't see it either
[11:11] <Upu_M0UPU> however as soon as it hits 15km I should get it
[11:11] <Martin_G4FUI> NI is usually a breeze from here ...
[11:12] <daveake> Nice pix fsphil
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[11:14] <jcoxon> LeoBodnar, is B-41 a record for furthest from the UK?
[11:15] <Upu_M0UPU> from the UK easily
[11:16] <SP9UOB-Tom> morning all
[11:17] <SP9UOB-Tom> LeoBodnar: congrats
[11:17] Action: SP9UOB-Tom feels beaten :-)
[11:17] <LeoBodnar> but not stirred i suppose? :D
[11:18] <SP9UOB-Tom> littlebit ;-) Im on antibiotics since monday, so my organism is littlebit stirred ;-)
[11:19] <LeoBodnar> i hope you get better
[11:19] <LeoBodnar> spring is here
[11:19] <SP9UOB-Tom> no fever since yesterday - so better :-)
[11:20] <LeoBodnar> cool
[11:21] <LeoBodnar> literally
[11:22] <SP9UOB-Tom> yeah :-)
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[11:27] Action: Geoff-G8DHE Hum need a 1.8Km tall tower for HIPI :-(
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[11:31] <Geoff-G8DHE> Image 37 you can just make out the two coast lines!
[11:34] <Upu_M0UPU> dum dee dum
[11:35] <Upu_M0UPU> 15km
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[11:38] <Upu_M0UPU> Well Geoff-G8DHE I can't see it yet
[11:40] <Geoff-G8DHE> Nor me currently need a mast 900m tall :(
[11:40] <Geoff-G8DHE> or do you mean the coast lines
[11:40] <Upu_M0UPU> the payload
[11:41] <Geoff-G8DHE> http://360.g8dhe.net/HAB_Flights/2014_Flights/HiPi_20140322/900mEyeLine.jpg
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[11:42] <Neil_M0CJM> Morning all
[11:42] <Geoff-G8DHE> my mast is only 20m :-(
[11:42] <Upu_M0UPU> morning
[11:42] <Geoff-G8DHE> morning
[11:42] <Upu_M0UPU> ok signal is going up now
[11:42] <Neil_M0CJM> what freq we on for HIPI
[11:42] <Upu_M0UPU> 434.249
[11:43] <Neil_M0CJM> cheers
[11:44] <Neil_M0CJM> Nowt down here in Basingstke
[11:45] <Geoff-G8DHE> Still just over the 0 degree horizon for you :-(
[11:46] Action: Geoff-G8DHE only neeed a 500m mast now .....
[11:47] <Neil_M0CJM> Yeah I know I was puching my luck
[11:47] <Neil_M0CJM> think i maybe starting to hear something now
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[11:54] <Geoff-G8DHE> You need a 270m mast Upu http://360.g8dhe.net/HAB_Flights/2014_Flights/HiPi_20140322/Upuneeds270mMast.jpg
[11:55] <fsphil> shame it's so cloudy
[11:55] <Upu_M0UPU> hehe
[11:55] <Geoff-G8DHE> Lovely blue sky in my images ;-)
[11:55] <Upu_M0UPU> well its coming up now
[11:55] <Upu_M0UPU> I can hear it
[11:55] <Upu_M0UPU> and see it
[11:55] <Geoff-G8DHE> :)
[11:56] <fsphil> 94km from the launch site
[11:58] <fsphil> 2.4C, it's warmed up
[11:58] <fsphil> that's the GPU temperature not air
[11:59] <Geoff-G8DHE> http://360.g8dhe.net/HAB_Flights/2014_Flights/HiPi_20140322/index.php?ind=3
[12:00] <Laurenceb> B-41 might come in range on Baikonur APRS
[12:05] <fsphil> isle of man on the bottom left of image 40?
[12:06] <fsphil> or is that scotland. hard to tell with the cloud
[12:06] <Upu_M0UPU> not even joking but its just started snowing here
[12:06] <fsphil> lol, I had sleet on the drive down to the launch site
[12:07] <gonzo_> is the shift close to 310hz?
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[12:07] <fsphil> shift is 350hz
[12:07] <fsphil> but it looks narrower on the waterfall
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[12:07] <gonzo_> ok, I am seeing a feignt trace, looks like it's hipi
[12:08] <Upu_M0UPU> and here it comes
[12:08] <Geoff-G8DHE> Could be Stranraer/Portpatrick
[12:08] <Upu_M0UPU> 19km
[12:08] <Upu_M0UPU> like somoene just turned it on
[12:08] <fsphil> definitly a hill
[12:09] <fsphil> 3.1m/s
[12:09] <Upu_M0UPU> yep
[12:09] <fsphil> any faster and this might burst
[12:09] <Upu_M0UPU> think you're safe
[12:10] <fsphil> this does mean the shift to the west will happen soon
[12:10] <fsphil> +er
[12:10] <fsphil> heh, if it bursts at 33km it'll land on the isle of man
[12:10] <fsphil> that's gotta be worth points :)
[12:10] <Upu_M0UPU> lol
[12:11] <fsphil> it's a bigger chute than necessary so it'd probably overshoot
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[12:14] <LeoBodnar> i have just landed on http://isleofman.com/
[12:14] <fsphil> better than the isle of lying
[12:15] <LeoBodnar> indeed, "win an iPod touch on the front page..." grrr
[12:17] <Laurenceb> LeoBodnar: i just realised there is a lot of APRS in Baku
[12:17] <Laurenceb> it might catch B-41 over the Caspian sea
[12:17] <LeoBodnar> are they not AIS ships?
[12:17] <Laurenceb> similarly to what happened last night
[12:17] <Laurenceb> shore based
[12:18] <LeoBodnar> ok, might woork
[12:18] <LeoBodnar> surprising APRS density in Turkey
[12:18] <Laurenceb> looks like there will be a three day "black hole" if it can make it to China
[12:19] <LeoBodnar> you mean like France?
[12:21] <G8APZ> Anyone having trouble decoding HIPI sigs? loud enough but nothing decoding
[12:21] <Geoff-G8DHE> Check Rv andUSB/LSB
[12:22] <Geoff-G8DHE> also need wider bandwidth red bars should almost meet
[12:24] <G8APZ> done all that...
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[12:24] <Geoff-G8DHE> show us a screen capture ?
[12:24] <fsphil> selected HIPI and hit autoconfigure?
[12:24] <Geoff-G8DHE> Sql off
[12:25] <G8APZ> erm no screen capture ...I don't have Gadwin on the lappy and no dropbox eithr
[12:25] <G8APZ> SQL is off and autoconf too
[12:27] <G8APZ> used autoconf... and filter widened..
[12:27] <db_g6gzh> I'm struggling to get much from it here, 300baud is a lot harder to decode than 50baud
[12:27] <fsphil> it really shouldn't be
[12:28] <daveake> I used to have a lot of trouble with 300; turned out to be my receiver
[12:28] <Neil_M0CJM> I can see it on the waterfall and hear it but no decodes
[12:29] <G8APZ> yeah... sums it all up
[12:29] <G8APZ> maybe it shouldn't be but does it bring any advantages?
[12:29] <mikestir_2E0MXS> are you sure it's not decoding? remember it's just binary data
[12:30] <Martin_G4FUI> http://g4fui.com:1121/
[12:30] <fsphil> not waiting an hour for one image is an advantage :)
[12:30] <db_g6gzh> Although I generally do quite well at 50 baud the signals are usually only just above the noise and don't have quite enough margin for 300
[12:31] <G8APZ> I didn't realise this is pictures... I don't see any green telem blocks decoding
[12:31] <Geoff-G8DHE> tuen on the SSDV window View|SSDV
[12:32] <DL7AD_> morning
[12:34] <db_g6gzh> I'll try the other radio which is slightly more senitive
[12:35] <db_g6gzh> and that's made the difference
[12:35] <G8APZ> Clear waterfall here but failed on decode of block 283
[12:35] <db_g6gzh> just have to make sure I don't transmit into the habamp
[12:36] <fsphil> hehe, you can hear packets that contain solid colours
[12:36] <G8APZ> hide the mike
[12:36] <fsphil> they sound different
[12:37] <db_g6gzh> G8APZ: it's all unplugged and everything turned right down
[12:38] <db_g6gzh> extra 1 or 2 dB is all it took to bring it in
[12:39] <Maxell> Moving JPEG http://g4fui.com:1121/cam_8.cgi
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[12:40] <G8APZ> Maybe it's just a marginal sig... shows about 9 or 10dB/n
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[12:41] <db_g6gzh> I'm now showing 10 to 11 dB s/n so probably just on the limit
[12:42] <mikestir_2E0MXS> I've been seeing 10dB the entire time
[12:42] <mikestir_2E0MXS> it doesn't seem to have any bearing on actual SNR
[12:43] <db_g6gzh> I've always been a bit doubtful
[12:43] <fsphil> the s/n value in fldigi seems a bit weird
[12:43] <db_g6gzh> it's also completely different in newer version
[12:45] <daveake> it is; I don't trust it
[12:45] <G8APZ> I'm on v3.21.50 - I guess I may need to update
[12:46] <db_g6gzh> That's the latest release
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[12:46] <G8APZ> OK
[12:46] <daveake> Land on the Isle Of Man; you know you want to :)
[12:46] <fsphil> lol
[12:46] <G8APZ> still nothing in the vid window :-(
[12:46] <fsphil> I'm torn between wanting it to land there, and floating
[12:47] <fsphil> either is a good result
[12:47] <daveake> yup
[12:47] <db_g6gzh> I'll be there in early May if you want to try it then
[12:47] <fsphil> I may get back to you :)
[12:47] <daveake> Good set of photos fsphil
[12:48] <G8APZ> there is a place s of b-41 called BATMAN
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[12:51] <G8APZ> LeoBodnar Syria next...then maybe Iraq for B-41?
[12:52] <G8APZ> More likely Iraq I meant
[12:54] <fsphil> some rather large clouds
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[12:57] <LeoBodnar> i really don't want to be in a place POP1 is
[12:58] <LeoBodnar> * looking at telemetry
[12:58] <fsphil> chilly
[12:58] <G8APZ> -255 LOL
[13:01] <Martin_G4FUI> Deep Space is around -270degC, apparently
[13:02] <tweetBot> @AnthonyStirk: Live images coming in from @fsphil's HIPI Pi powered balloon http://t.co/aXNG2V1WpG @Raspberry_Pi #ukhas #hamr http://t.co/z0kpmjNP8c
[13:03] <Geoff-G8DHE> 133Kms travelled http://360.g8dhe.net/HAB_Flights/2014_Flights/HiPi_20140322/index.php?ind=4
[13:06] <fsphil> the signal seems a bit fady
[13:07] <fsphil> fadey*
[13:07] <fsphil> must be swiging about quite a bit
[13:07] <fsphil> +n
[13:07] Action: fsphil gives up typing
[13:07] <Martin_G4FUI> Seeing that here too, fsphil
[13:09] <fsphil> lost my first image packet
[13:09] <db_g6gzh> I can't listen to the audio using this radio. I need to make up a lead to use the "line out" rather than the speaker jack.
[13:10] <Martin_G4FUI> Pictures are stunning, though!
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[13:10] <fsphil> hopefully we'll see some nice shadows at sunset
[13:10] <Neil_M0CJM> yay green packet decode
[13:11] <Martin_G4FUI> Which camera are you using, fsphil
[13:11] <fsphil> standard pi camera
[13:12] <Martin_G4FUI> It produces a nice tonal range ...
[13:12] <fsphil> it's much better than the uart cameras I used to use
[13:12] <Martin_G4FUI> Nice blacks, and highlights not burned out
[13:12] <fsphil> they didn't even have IR filters. the earth looked like mars
[13:13] <fsphil> signal strength has recovered
[13:13] <fsphil> it got quite weak there for a while
[13:14] <fsphil> past 30km
[13:14] <fsphil> orion floated at 31km iirc
[13:14] <fsphil> this isn't showing signs of slowing yet
[13:15] <an112> Do you use any code do decide which image to send down? Or does it just pick the latest picture or something?
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[13:15] <fsphil> just takes the image when the previous one has finished transmitting
[13:16] <daveake> I see you're doing the small/large image thing :)
[13:16] <fsphil> yep :)
[13:17] <fsphil> temperature inside is now a toasty 7.9C
[13:17] <LeoBodnar> we need altitude and direction time stamp or data field on SSDV
[13:18] <fsphil> I've thought about adding a position/altitude/direction field. but it's quite a bit of overhead
[13:18] <LeoBodnar> *camera direction
[13:18] <LeoBodnar> oh
[13:18] <daveake> I'm doing that as an overlay soon
[13:18] <fsphil> it could be sent with just one packet
[13:18] <fsphil> but ideally it would be sent with them all
[13:19] <daveake> maybe a different packet type for meta data?
[13:19] <fsphil> that would be better
[13:19] <Martin_G4FUI> Would save one from trying to spot landmarks! :)
[13:19] <LeoBodnar> well altitude and position habitat can guess and add itself
[13:19] <daveake> maybe send it twice once at start once later
[13:19] <fsphil> how would you work out direction?
[13:19] <LeoBodnar> magnetometer?
[13:19] <daveake> compass
[13:20] <fsphil> in some of those images you could calculate the direction from the flares of the sun
[13:20] <daveake> they're very cheap
[13:20] <fsphil> are they fast enough?
[13:20] <LeoBodnar> yes
[13:20] <daveake> plenty
[13:20] <fsphil> I'll put one in next time
[13:20] <fsphil> I can just transmit an extra line of telemetry
[13:21] <daveake> true
[13:21] <fsphil> (image x was taken at xx:xx:xx, pointing at ...)
[13:21] <LeoBodnar> indeed
[13:21] <daveake> also, if you want to take sunset shots for example, you could take photos when it's pointing the right way
[13:22] <fsphil> yes that would be ideal
[13:22] <LeoBodnar> and when it spins fast don't take shots
[13:23] <fsphil> past orion's float altitude
[13:23] <fsphil> though orion may have begun floating because of sunset
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[13:24] <daveake> When Upu and I flew floaters, mine was at 40km and I think his at 38km
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[13:25] <Martin_G4FUI> HIPI seems to be heading back towards you, fsphil
[13:25] <fsphil> right, I desperately need food. brb
[13:25] <fsphil> hah, yea
[13:25] <daveake> I can never eat before launch then I get really hungry after
[13:25] <fsphil> the prediction was for 31km float so it might
[13:25] <fsphil> yea all I've had so far is toast
[13:26] <fsphil> the school brought doughnuts to the launch
[13:26] <daveake> even bacon is a struggle :/
[13:26] <daveake> ah
[13:26] <fsphil> but I had that horrible balloon powder all over my hands
[13:26] <fsphil> didn't fancy eating any of it
[13:26] <daveake> hah
[13:26] <mikestir_2E0MXS> isn't that just talc?
[13:27] <fsphil> right, brb before I waste away :)
[13:28] <G8APZ> There's a sort of arc in image 49
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[13:31] <LeoBodnar> no.. ah, arc!
[13:32] <LeoBodnar> it looks like a little bit of slowing down is going on
[13:32] <G8APZ> Hmmm!
[13:32] <daveake> yes
[13:34] <daveake> as it speeds up ...
[13:35] <LeoBodnar> http://x-f.lv/dev/habitat-graphs/payload/ceb49e4995c6e3149bcb02356e908270#g/_vertical_rate
[13:35] <G8APZ> does the SSDV RX window in FLdigi fill up on successful decodes, or do I have to do something to force it?
[13:35] <Upu_M0UPU> its fine way under the burst alt
[13:36] <Geoff-G8DHE> No need to do anything it will show good decodes automatically
[13:37] <G8APZ> OK sum total here still nil then!
[13:37] <G8APZ> and ony reds on the telem
[13:37] <G8APZ> s/n shows +12
[13:37] <Geoff-G8DHE> me neither no decodes at present despite quite nice lines just to much QRN
[13:37] <LeoBodnar> have you posted the screen shot yet?
[13:38] <G8APZ> I can't do a screenshot on the laptop
[13:38] <Geoff-G8DHE> ah nearly got the telmetery that time
[13:38] <LeoBodnar> how wide are your filters ?
[13:39] <LeoBodnar> tone ones
[13:39] <G8APZ> 250
[13:39] <mikestir_2E0MXS> too narrow
[13:39] <G8APZ> really?
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[13:40] <Geoff-G8DHE> Its 300b so need 300Hz
[13:40] <mikestir_2E0MXS> minimum is the baud rate, otherwise it causes the bits to blur together
[13:40] <LeoBodnar> 300+
[13:40] <G8APZ> yes you are right!! Just got green after moving to 280
[13:41] <LeoBodnar> def slowing down
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[13:41] <M0TVU> Hi
[13:42] <M0TVU> Just switched on - I HIPI using the settings described? - Just getting rubbish
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[13:43] <Herman-PB0AHX> hello to all
[13:43] <Geoff-G8DHE> Hello!
[13:44] <G8APZ> M0TVU I've had advice on here recently... widen the tone filters to 300
[13:44] <Herman-PB0AHX> wat is corect shift i hrd HIPI but no writing yet
[13:44] <G8APZ> 350 in theory but I see more like 310
[13:44] <Martin_G4FUI> My decoder is set at 300 Hz
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[13:46] <daveake> 0.9m/s
[13:47] <Geoff-G8DHE> 0.4m/s
[13:49] <M0TVU> Just gobbledygook here :-(
[13:50] <G8APZ> M0TVU open the SSDV RX window
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[13:50] <G8APZ> Under View
[13:51] <M0TVU> oh is it sending slowscan?
[13:51] <G8APZ> yes
[13:52] <M0TVU> Aha. How long does each image take?
[13:52] <G8APZ> ages!!
[13:52] <M0TVU> LOL
[13:52] <G8APZ> 10 minutes roughly
[13:52] <M0TVU> Nothing at the moment. Just a grey screen. Nothing on the packets rcvd etc eithere
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[13:54] <Herman-PB0AHX> wat is HIPI sending ???
[13:54] <G8APZ> open up the filter width to 300 and maybe lower the shift to 310
[13:54] <G8APZ> SSDV
[13:54] <Geoff-G8DHE> Images using SSDV 300baud
[13:55] <Geoff-G8DHE> see http://ssdv.habhub.org/
[13:55] <Herman-PB0AHX> hw set ssdv in fldigi ?
[13:55] <G8APZ> View SSDV
[13:55] <M0TVU> Yes I have 300/310 8N1.5 and the filter set at 300
[13:56] <Geoff-G8DHE> Its automatic if it sees the correct headers nothing to set up other than rtty and normal parameters
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[14:03] <gonzo_> getting good data now. Nice pics!
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[14:06] <G8APZ> g0nzo_ clearly shows blackness of space and the blue line
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[14:11] <Herman-PB0AHX> i hrd HIPI very well but no writing yet
[14:11] <G8APZ> SSDV window open?
[14:11] <Herman-PB0AHX> yep
[14:11] <G8APZ> filter width 300?
[14:11] <Herman-PB0AHX> yep
[14:12] <daveake> I should have copyrighted that ... https://pbs.twimg.com/media/BjVC2RHIAAApzLb.jpg :p
[14:12] <G8APZ> autoconf?
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[14:12] <Herman-PB0AHX> yep
[14:12] <G8APZ> custom separation reduced to 310?
[14:12] <Geoff-G8DHE> Ummm http://www.broadbandtvnews.com/2014/03/21/eshailsat-issues-rfp-for-eshail-2/
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[14:12] <Herman-PB0AHX> yep set
[14:13] <G8APZ> s/n better than 9dB?
[14:14] <Herman-PB0AHX> s/n 11
[14:14] <Geoff-G8DHE> im getting 10-11dB s/n and still no decodes
[14:14] <G8APZ> I have 11 also
[14:14] <G8APZ> solid decodes for past 30 mins
[14:14] <Herman-PB0AHX> i have time to waiting hihihi
[14:14] <Upu_M0UPU> be aware its not plain text this for most of the time
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[14:15] <G8APZ> SSDV window should be showing decoded packets though
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[14:16] <Upu_M0UPU> yes
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[14:16] Nick change: G8APZ -> G8APZ_away_but_m
[14:16] Nick change: G8APZ_away_but_m -> G8APZ_away_monit
[14:17] Nick change: G8APZ_away_monit -> G8APZ_away
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[14:21] <G8APZ_away> Image 55 remarkable lines from sunlight
[14:23] <G8APZ_away> Altitude 36km
[14:27] <Herman-PB0AHX> line 410 red red grgr
[14:28] <Herman-PB0AHX> blallon working fine
[14:28] f5vnf (5c92f591@gateway/web/freenode/ip.92.146.245.145) joined #highaltitude.
[14:29] <f5vnf> #raspi
[14:29] <Herman-PB0AHX> ûÿ HIPI,41314:2:3540585,m5n6328,36>51,33.76C$$HITI493;29*01,54.5-.432r,36167,0<1#Sf9ÂÌü÷ÿÿÿÿÿÿÿþÿïªb(¢Îà
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[14:30] <fsphil> daveake: yep should have ;)
[14:31] <fsphil> so much for predictions, this balloon is just making it up as it goes along
[14:32] <db_g6gzh> Repelled by the Isle of Man
[14:34] <LeoBodnar> i need to thin about this http://ballonsolaire.free.fr/bestofballon04SPF/Image049.jpg
[14:34] <fsphil> there is some lightning just north of the balloon
[14:35] <fsphil> talk about an inflated ego
[14:35] <db_g6gzh> HIPIcampus
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[14:37] <Maxell> Herman-PB0AHX: too bad it didn't came any closer :(
[14:37] <fsphil> I'd call that a float
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[14:38] <fsphil> ground speed is just 3.1m/s
[14:38] <fsphil> it's just kind of hovering there
[14:38] <Herman-PB0AHX> maxell no only red lines here
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[14:39] <Herman-PB0AHX> Leo u rcvd my mail ??
[14:41] <fsphil> signal went very weak for a moment there
[14:41] <fsphil> I'm not decoding it
[14:41] <fsphil> might have burst
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[14:42] <fsphil> nope
[14:42] <Herman-PB0AHX> here also no writing yet but it is comming
[14:42] <fsphil> weird
[14:43] <wd8mnv> don't see anything on websdr
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[14:45] <fsphil> 0.6 m/s ground speed
[14:45] <fsphil> sheesh
[14:46] <Upu_M0UPU> lol
[14:46] <Upu_M0UPU> going no where soon
[14:47] <Herman-PB0AHX> LeoBodnar: u rcvd my mail ???
[14:48] <fsphil> lost the signal again
[14:48] <mikestir_2E0MXS> still huge sigs here
[14:49] <fsphil> and back
[14:49] <Upu_M0UPU> strong here
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[14:51] <fsphil> the drop in signal doesn't seem to coincide with any direction change
[14:51] <fsphil> it's very odd
[14:52] <fsphil> could be something overloading the ft817
[14:52] <mikestir_2E0MXS> i've not really noticed any fading here
[14:54] <Geoff-G8DHE> No I must admit its been very consistent here, but just below decode level, can make out about 50% of telemetery but never a full decode :(
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[15:06] <kpiman> I lost signal for last 20 mins, just got it back. it went very weak.
[15:06] <Upu_M0UPU> hills
[15:08] <kpiman> yes, could be has it's moving south.
[15:22] <Herman-PB0AHX> yessssssssss 1e green
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[15:23] <SP9UOB-Tom> fsphil: nice float :-)
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[15:27] <fsphil> you say that, it seems to be rising a bit again :)
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[15:32] <Herman-PB0AHX> distance for me to HIPI is 701.3 km now
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[15:33] <fsphil> heading very slightly west again
[15:33] Nick change: linkxs -> Guest55930
[15:34] <fsphil> sunset on the ground is 18:30
[15:34] <fsphil> about three hours from now
[15:34] <fsphil> + however long it takes to account for the altitude
[15:34] <mikestir_2E0MXS> what's the expected battery life?
[15:34] <fsphil> should be 26 hours-ish
[15:35] <x-f> about 30 minutes later
[15:36] <Reb-SM3ULC> wow, HIPIis floating :)
[15:38] <fsphil> it certainly is
[15:38] <fsphil> that looks like a thunder cell on the bottom right of the current image
[15:38] <fsphil> image 63
[15:38] <LeoBodnar> cool pics
[15:40] <Laurenceb> <Herman-PB0AHX> distance for me to HIPI is 701.3 km now
[15:40] <Laurenceb> 50 baud?
[15:41] <fsphil> 300
[15:41] <Laurenceb> 300 at 700km? nice
[15:42] <Laurenceb> LeoBodnar: I worked out a way to to APRS log
[15:43] <Laurenceb> its not very nice...
[15:43] <LeoBodnar> haha that's expected
[15:43] <Laurenceb> send a Bulletin packet to change the telemetry
[15:43] <Laurenceb> then send log in a compressed format as telemetry
[15:43] <LeoBodnar> it's message not bulletin
[15:43] <Laurenceb> oh
[15:43] <LeoBodnar> message is point to point
[15:43] <Laurenceb> anyway, like that
[15:43] <Laurenceb> oh
[15:43] <LeoBodnar> bulletin is broadcast
[15:43] <Laurenceb> i see
[15:44] <LeoBodnar> you can send messages
[15:44] <LeoBodnar> or just add comments to the current data
[15:44] <Laurenceb> i guess habitat/spacenear could parse it
[15:44] <Laurenceb> some sort of compressed binary grid/offset from current position or something
[15:44] <LeoBodnar> in fact you can concatenate current data with one historical
[15:45] <Laurenceb> ah
[15:45] <LeoBodnar> aprs.fi will only parse first instance and treat the rest as text comment
[15:45] <Laurenceb> right
[15:45] <LeoBodnar> or many historcal ones
[15:45] <Laurenceb> i dont understand how APRS works
[15:46] <Laurenceb> if you send packets in wrong order such that they will be ignored by aprs.fi, will they still be entered to the aprs network
[15:46] <LeoBodnar> have a quick read http://www.aprs.org/doc/APRS101.PDF
[15:46] <Laurenceb> i.e. is aprs.fi just a parser applying its own rules?
[15:46] <LeoBodnar> dteails are painful but overall idea is quite clear
[15:46] <LeoBodnar> no
[15:46] <LeoBodnar> APRS standard defines the package encoding
[15:46] <LeoBodnar> aprs.fi just follows it
[15:47] <nosebleedkt2> Does anyone have a compiled version of fsphil's SSDV for Windows platform ?
[15:47] <Laurenceb> the 311mph thing, is that part of the APRS network?
[15:47] <LeoBodnar> standalone receivers i.e. in cars do it internally and display on the screen locally
[15:47] <LeoBodnar> no
[15:47] <Laurenceb> oh
[15:47] <LeoBodnar> it is aprs.fi [bad] estimate
[15:48] <Laurenceb> so you could transmit a backlog and use a custom parser?
[15:48] <LeoBodnar> but you can send your own estimation of speed/direction and then it takes precedence
[15:48] <LeoBodnar> yes
[15:48] <Laurenceb> how do you access the aprs network itself?
[15:48] <LeoBodnar> you are free to use text comment as you wish
[15:48] <Laurenceb> right
[15:48] <LeoBodnar> in fact the whole message can be one big text comment and then aprs.fi won't try to decode it
[15:49] <Laurenceb> oh
[15:49] <LeoBodnar> you mean on TCPIP?
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[15:49] <Laurenceb> yes
[15:49] <Laurenceb> from the regular internet
[15:49] <LeoBodnar> http://www.aprs2.net/
[15:49] <Laurenceb> ah thanks
[15:50] <Laurenceb> it looks quite flexible
[15:50] <Geoff-G8DHE> Gah found the problem something else was feeding noise in on my VAC channel :(
[15:50] <LeoBodnar> it transient
[15:50] <LeoBodnar> so you only see current data
[15:50] <LeoBodnar> nobody is storing it apart from fundu.com and aprs.fi
[15:50] <LeoBodnar> findu.com
[15:50] <Laurenceb> ringht
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[15:50] <LeoBodnar> quick look: telnet aprs.radom.pl 10152
[15:50] <fsphil> fundu.com, sounds like a pay day loan company
[15:51] <db_g6gzh> Since I set the filter I've been getting data from APRS-IS http://paste.debian.net/89059
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[15:51] <db_g6gzh> so you could run your own parser for custom stuff
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[15:52] <LeoBodnar> yes and completely ignore aprs.fi
[15:52] <db_g6gzh> yes
[15:52] <LeoBodnar> but it's nice
[15:52] <LeoBodnar> for basic stuff
[15:52] <db_g6gzh> but you still will only get the first packet when there are duplicates, good enough for logging though
[15:53] <LeoBodnar> yeah, that's the downside
[15:53] <db_g6gzh> no coverage data
[15:54] <db_g6gzh> and there are delayed repeats in there so it would be worth encoding something (sequence/time) to discard those
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[15:56] <Reb-SM3ULC> LeoBodnar: but your resending of logs would work if you pulled it the "direct" way?
[16:00] <Laurenceb> maybe we could integrate an APRS gateway into Habitat?
[16:00] <adamgreig> it's been discussed
[16:01] <adamgreig> don't think there were any objections, just could be a little tricky to do (gotta write a parser and some way of having it be part of flight docs) so no one has got around to doing it yet
[16:01] <LeoBodnar> sounds like a worthwhile thing to do
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[16:04] <Laurenceb> i havent read all the aprs docs
[16:04] <db_g6gzh> Not sure how useful they are but: http://www.pakettiradio.net/libfap/ https://github.com/kd7lxl/python-libfap
[16:04] <adamgreig> LeoBodnar: until you, not many people were using much aprs :P
[16:04] <Laurenceb> but would it be possible to "seamlessly" switch between the two
[16:05] <Laurenceb> so keep the same sequence number and somehow use the habitat payload config for parsing
[16:05] <db_g6gzh> you could send UKHAS strings as comment
[16:05] <LeoBodnar> absolutely
[16:05] <Laurenceb> libfap eh?
[16:05] <LeoBodnar> most data is already there
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[16:06] <db_g6gzh> Laurenceb: Finnish Aprs Parser 8-)
[16:06] <Laurenceb> ah
[16:06] <Laurenceb> so if you send a message on APRS, its point to point?
[16:07] <LeoBodnar> so finnish aprs parsing is a good thing then?
[16:07] <Laurenceb> so how does it arrive at a TCPIP gateway?
[16:07] <Laurenceb> i mean, do you have a telnet session open?
[16:07] <LeoBodnar> clients (igates) submit it
[16:08] <LeoBodnar> i am not sure how exactly they communicate, there are open source igates for Linux
[16:08] <Laurenceb> right
[16:08] <LeoBodnar> i assume just UDP packets
[16:08] <Laurenceb> ah
[16:08] <db_g6gzh> I basically pass anything I hear on RF to the APRS-IS network
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[16:09] <Laurenceb> so its pretty simple really then :D
[16:09] <LeoBodnar> i think there is an option to actually transmit to balloon via APRS which is very tempting idea
[16:09] <db_g6gzh> I run aprx software on a Pi
[16:10] <Laurenceb> hmm
[16:10] <Laurenceb> do you think silabs built in modem could be used?
[16:10] <Laurenceb> oh doh
[16:10] <Laurenceb> its AFSK over FM
[16:10] <LeoBodnar> message on APRS is from callsign1 to callsign2 but it somehow finds it way through the network
[16:10] <Reb-SM3ULC> db_g6gzh: it translates aprs into finnish? ;)
[16:10] <LeoBodnar> it is also publicly available
[16:11] <LeoBodnar> and must not be encrypted
[16:11] <Laurenceb> ah
[16:11] <LeoBodnar> as in no secret codes
[16:11] <db_g6gzh> Reb-SM3ULC: hopefully not 8-)
[16:11] <LeoBodnar> but say base-64 encoding is fine
[16:11] <Laurenceb> is there a standard FM deviation for APRS?
[16:11] <LeoBodnar> or whatever APRS uses base-93?
[16:11] <LeoBodnar> ~3KHz
[16:12] <Laurenceb> so...
[16:12] <LeoBodnar> http://www.febo.com/packet/layer-one/transmit.html
[16:12] <Laurenceb> if the silabs modem was set to ~3kbps, 3khz separation
[16:12] <Laurenceb> then the raw bitstream was sent through some DSP to extract AFSK data
[16:12] <LeoBodnar> well deviation for high and low tones is different
[16:12] <Laurenceb> might work?
[16:12] <LeoBodnar> as in by a factor of x2
[16:13] <Laurenceb> ewww
[16:13] <LeoBodnar> yes it might
[16:13] <LeoBodnar> it's 1970's thing
[16:13] <Laurenceb> i guess it might still work, yeah
[16:13] <LeoBodnar> yeah just increase filter BW
[16:13] <Reb-SM3ULC> db_g6gzh: what type of input? soundcard?
[16:13] <Laurenceb> actually i guess theoretically thats hardly any worse than the standard analogue front end demod
[16:13] <db_g6gzh> http://tnc-x.com/TNCPi.htm
[16:14] <LeoBodnar> it's AFSK so 3kbps won't work
[16:14] <Laurenceb> just DSP and single bit with oversampling
[16:14] <Laurenceb> yeah
[16:14] <Laurenceb> similar to 1bit GPS
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[16:14] <LeoBodnar> i think it should be set to 13.2kbps
[16:14] <Laurenceb> ok
[16:14] <malgar> why HIPI doesn't burst?
[16:14] <db_g6gzh> a lot of the peculiarites of APRS encoding etc. result from the original use of TNC hardware
[16:15] <LeoBodnar> it divides cleanly by both 2200 and 1200
[16:15] <Laurenceb> need a fairly hefty DSP
[16:15] <Laurenceb> but then again if you are writing in ASM... :D
[16:15] <LeoBodnar> i think it is pretty basic
[16:15] <Laurenceb> yeah
[16:15] <LeoBodnar> i meant to do it for 5 months by now
[16:16] <Laurenceb> heh
[16:16] <LeoBodnar> but some people dragged me into some crazy projects
[16:16] <Reb-SM3ULC> db_g6gzh: ah, works well?
[16:16] <Laurenceb> i guess if APRS works on the ground from dipole to dipole over long ranges, it should work to the balloon
[16:16] <Laurenceb> hehe
[16:16] <LeoBodnar> yeah
[16:17] <LeoBodnar> i am not sure what percentage of igates actually forward TCPIP packets onto RF
[16:17] <arko> WOW
[16:17] <arko> B41 in turkey
[16:17] <db_g6gzh> Reb-SM3ULC: seems very good on receive but I have some issues on transmit (which may be my radio)
[16:17] <Laurenceb> the ground tx power is going to be what? a few watts?
[16:17] <arko> is this a record yet?
[16:17] <LeoBodnar> sorry arko missed Armenia
[16:17] <arko> haha
[16:17] <LeoBodnar> but it is all inside radio coverage
[16:17] <arko> next time :P
[16:17] <arko> sorry my friends in georgia didnt setup
[16:18] <db_g6gzh> LeoBodnar: at least in UK you would need NoV for that
[16:18] <arko> is there really aprs in this region?
[16:18] <Reb-SM3ULC> db_g6gzh: playing with rpi+rtlsdr for just receiving aprs
[16:18] <LeoBodnar> Turkey is full of it
[16:18] <Laurenceb> how do i grab from telnet as a pipe?
[16:19] <Laurenceb> ^linux n00b question
[16:19] <Laurenceb> ill have a play with aprs parsing :P
[16:19] <arko> LeoBodnar: crazy!
[16:19] <arko> thats awesome
[16:19] <LeoBodnar> telnet aprs.radom.pl 10152 | grep M0XER
[16:19] <SP9UOB-Tom> Laurenceb: telnet something | tee something_else
[16:19] <arko> fsphil: dude those pictures coming down on HIPI are awesome
[16:19] <Laurenceb> dohhhhh
[16:19] <Laurenceb> same as normal then :P
[16:19] <db_g6gzh> Reb-SM3ULC: I've used gqrx for that on my desktop but not tried it on the Pi
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[16:20] <Laurenceb> haha take that aprs.fi
[16:20] <Laurenceb> it works
[16:20] <LeoBodnar> Laurenceb: here is compressed telemetry format that i use http://he.fi/doc/aprs-base91-comment-telemetry.txt
[16:20] <GMT> harumph! my DL-FLDIGI appears to have stopped working
[16:21] <Laurenceb> ok
[16:21] <LeoBodnar> also this might help: http://aprs.fi/?c=raw&call=M0XER-11&limit=50&view=decoded
[16:21] <Laurenceb> this looks easy to add to habitat :D
[16:21] <GMT> anyone having probs with the latest version?
[16:21] <Reb-SM3ULC> db_g6gzh: oki, i'm playing around with rtl_fm and multimon, for the moment, not being able to trunk the sound from rtl_fm to a /dev/xxxx device yet
[16:21] <SP9UOB-Tom> GMT: latest version is from december 2012 :-)
[16:21] <LeoBodnar> yeah it is pretty trivial (after you stop swearing at the whole APRS thing)
[16:21] <Laurenceb> heh
[16:22] <Reb-SM3ULC> Laurenceb: i would recommend nc instead of telnet
[16:22] <Laurenceb> seems a little broken by design as im grabbing the entire network O_o
[16:22] <Laurenceb> ok
[16:22] <GMT> Tom, thanks; saw message during the week about update, d/l that, still same prob. 8-(
[16:22] <db_g6gzh> yes nc aka netcat
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[16:22] <Reb-SM3ULC> db_g6gzh: right
[16:22] <LeoBodnar> SP9UOB-Tom: is radom.pl unique or all the servers have this access?
[16:23] <db_g6gzh> Laurenceb: you can filter in the network if you use the correct port/protocol
[16:23] <Laurenceb> ah ok
[16:23] <Laurenceb> that seems more sensible :P
[16:23] <SP9UOB-Tom> LeoBodnar: no it isnt unique, it depends on server configuration
[16:23] <LeoBodnar> ok
[16:23] <db_g6gzh> http://www.aprs-is.net/javAPRSFilter.aspx
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[16:24] <SP9UOB-Tom> oh, my digi in China is in good condition :-) BG1HTH-1>APDS01,WIDE1-1,WIDE2-1,qAR,BH1IEO:>dsDigi v1.25 UP: 75 days 15:06, rxd: 5456 pkts, digi: 2118 pkts
[16:24] <SP9UOB-Tom> LeoBodnar: have You did frequency change depending on APRS region ?
[16:25] <arko> LeoBodnar: if you end up in Tehran there are a few stations
[16:25] <arko> looks like it will be turning west though
[16:25] <arko> what do the predictions show?
[16:27] <tweetBot> @shhmakers: Join us @AccessSpace on March on the 31th for an evening of hacking, making and #UKHAS!
[16:27] <amell> back from a day out and what do I find? B-41 almost in Iran :) and a whole load of pictures from 36km up.
[16:27] <amell> its all happening here
[16:29] <LeoBodnar> SP9UOB-Tom: yes, switching over China and turning 434 off
[16:29] <SP9UOB-Tom> LeoBodnar: and US also :) ?
[16:29] <Laurenceb> 92 hours flight time on B-41
[16:30] <SP9UOB-Tom> LeoBodnar: 434 over China is unallowed ?
[16:30] <Laurenceb> PBH pwned yet again :D
[16:30] <GMT> thats more than MH370
[16:30] <amell> Leobodnar: What shocks me most, is that you actually planned for flying over china. This was supposed to be "Test flight over Europe"
[16:31] <GMT> amell: leo B has 'previous'!
[16:31] <amell> GMT: Sure does.
[16:32] <Laurenceb> GMT: tracking is more reliable than MH370 too :P
[16:32] <amell> In theory I should be able to receive HIPI. I might give it a go from the car soon
[16:32] <obcuz> where can i find picture from HiPi
[16:33] <amell> http://ssdv.habhub.org
[16:33] <LeoBodnar> US as well Tom
[16:33] <obcuz> thankd - good
[16:34] <LeoBodnar> 434 in China is reserved for military use aiui
[16:34] <Laurenceb> ooh a new prediction
[16:35] <amell> should have left it on, with SSDV, We want to see you attacked by a chinese MiG.
[16:35] <Laurenceb> maybe only 2 days "black hole" before its in range on chinese APRS
[16:35] <eroomde> back
[16:35] <eroomde> lovely float fsphil
[16:35] <eroomde> on top of the world
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[16:36] <arko> srsly
[16:36] <arko> float at 36km is amazing
[16:37] <LeoBodnar> i am envious
[16:37] <eroomde> latex rules
[16:37] <eroomde> sunset should be spectacular
[16:37] <amell> does it have solar?
[16:37] <arko> i love the drunk wall its been doing
[16:37] <arko> walk*
[16:37] <eroomde> until someone finds/makes mylar super-pressures that are sized to take a useful payload to 36km
[16:37] <arko> dude
[16:37] <amell> whats the battery life on HIPI?
[16:38] <arko> why hasn't someone made one yet
[16:38] <arko> theres a market for it
[16:38] <eroomde> a couple have
[16:38] <eroomde> they're just really expensive
[16:38] <eroomde> v manual work
[16:39] <eroomde> it'll probably be a DIY job for hobby, where people don't cost their time
[16:39] <eroomde> arko: i've been at point-to-point all day
[16:40] <eroomde> it's horse racing, full of the kind of englishness that you like
[16:40] <arko> OMG
[16:40] <eroomde> tweed jackets, welly-boots, landrovers, dogs, G&T's, The Hunt, etc
[16:40] <arko> top hats and monocles?
[16:40] <eroomde> that's ascot
[16:40] <arko> sorry, the movies have told me that
[16:40] <eroomde> this is less formal
[16:40] <arko> :P
[16:40] <arko> jkingmostly
[16:41] <amell> sounds very sloane
[16:42] <eroomde> it's not that sloane
[16:42] <GMT> top-hats and monocles are Royal Ascot and the UKHAS conference, dontchankow.
[16:42] <eroomde> sloaniness is a londoney approximation of countrysideness
[16:42] <eroomde> this is just countrysideness
[16:42] <amell> ok I'll let you have that
[16:43] <GMT> HIPI going all wobbly?
[16:43] <eroomde> GMT: a white-tie UKHAS conference could be fun
[16:44] <eroomde> some kind of banquet after the talks
[16:44] <eroomde> just renting all that crap costs more than the train ticket
[16:45] <amell> what you 'rent' white tie gear? horrendous.
[16:45] <eroomde> and last year the best thing was having a few drinks at that riverside pub in greenwich for a few hours
[16:45] <eroomde> amell: yes, sadly
[16:45] <arko> eroomde: did your horse win?
[16:45] <GMT> How about a BATC-covered launch with everyone in DJs?
[16:45] <eroomde> arko: i came out about £15 on top, in the end
[16:45] <eroomde> which might be the first time ever
[16:46] <arko> \o/ huzah
[16:46] <eroomde> i shall spend it wisely
[16:46] <arko> ON BEER
[16:46] <eroomde> i think we were planning an evening in the punter tomorrow, if the weather is as good as it was today
[16:46] <eroomde> that'll do
[16:46] <eroomde> so yes, on beer
[16:47] <db_g6gzh> lovely signal from HIPI http://stuff.dbrooke.me.uk/HIPI.png
[16:47] <GMT> Did somebody say BEER?
[16:47] <eroomde> db_g6gzh: that's lovely and clear
[16:47] <eroomde> textbook
[16:47] <eroomde> db_g6gzh: what's that out at about 2700Hz?
[16:48] <db_g6gzh> it's been nice and stable too, is it an NTX2B fsphil ?
[16:48] <mikestir_2E0MXS> i've just been out in the car. It's so strong here it was quietening my fm-only rig in the car
[16:48] <eroomde> db_g6gzh: i beleive it is an ntx2b yes
[16:48] <db_g6gzh> eroomde: steady carrier from something, it only fades as the radio AGC compensates
[16:49] <eroomde> well, a beer/diet-coke for fsphil at the next conf for a lovely payload
[16:49] <eroomde> these images are great
[16:49] <eroomde> quite excited about seeing sunset
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[16:53] <SP9UOB-Tom> SP5MXW-1>APDS01,WIDE2-1,qAR,SP5VLM-1:>dsDigi v1.25 UP: 33 days 17:56, rxd: 298679 pkts, digi: 13026 pkts
[16:53] <SP9UOB-Tom> BG1HTH-1>APDS01,WIDE1-1,WIDE2-1,qAR,BH1IEO:>dsDigi v1.25 UP: 75 days 15:26, rxd: 5456 pkts, digi: 2118 pkts
[16:53] <SP9UOB-Tom> SR9DZB>APDS01,WIDE1-1,WIDE2-2,qAR,SR6NKB:>dsDigi v1.24 UP: 5 days 22:36, rxd: 71332 pkts, digi: 667 pkts
[16:53] <SP9UOB-Tom> SR9DOL>APDS01,WIDE1-1,WIDE2-2,qAR,SR6NKB:>dsDigi v1.24 UP: 3 days 18:47, rxd: 9025 pkts, digi: 248 pkts
[16:53] <SP9UOB-Tom> YO8A-2>APDS01,WIDE1-1,WIDE2-1,qAR,YO8KGA-10:=/6e#MU%jn#Q&6test - DigiPeater Toaca Peak
[16:53] <GMT> just notice that pic 0x48 coming thru now shows curvature
[16:53] <SP9UOB-Tom> oops
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[16:53] <SP9UOB-Tom> sorry - not that window
[16:55] <Reb-SM3ULC> GMT: very nice pics
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[16:56] Nick change: amell_ -> amell_iphone
[16:56] <Upu_M0UPU> Reb-SM3ULC let me know how you get on with that Pi + APRS
[16:56] <Upu_M0UPU> I couldn't get it working
[16:57] <amell_iphone> How long is hiPi likely to be up for?
[16:57] <Upu_M0UPU> if it makes it until sunset
[16:57] <Upu_M0UPU> all night
[16:57] <Upu_M0UPU> will probably burst at sunrise
[16:58] <eroomde> i hope it makes it to sunset
[16:58] <Upu_M0UPU> I'm sure it will
[16:58] <eroomde> UV will gt us all eventually
[16:58] <eroomde> but hopefully it'll last 12 hours
[16:58] <Upu_M0UPU> based on previous flights I'm sure it will last
[16:58] <Upu_M0UPU> you may even get sunrise
[16:59] <eroomde> well UV seems to be the main degradation mode for floating latex's, so you should last a whole night once you get to the night
[16:59] <Upu_M0UPU> yep
[16:59] <Upu_M0UPU> all the recent ones have burst in the morning
[17:00] <LeoBodnar> i think it's not UV, it's heating up in still air
[17:00] <Upu_M0UPU> float height is perfect and the fact its not actually going anywhere is great
[17:00] <amell_iphone> Ok I will leave trying to listen for it until this evening cos got a lot of stuff to do
[17:00] <LeoBodnar> as you can launch into the night and it still bursts at sunset
[17:01] <Reb-SM3ULC> Upu_M0UPU: yes, also tring to get wprs working, im stuck on the "device" thing for the moment
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[17:01] <eroomde> LeoBodnar: you mean sunrise?
[17:01] <LeoBodnar> yeah
[17:02] <LeoBodnar> so rubber absorbs a lot of thermal energy very quickly
[17:02] <eroomde> sure, that would account for the sunrise bursts
[17:02] <Upu_M0UPU> Reb-SM3ULC http://www.kubonweb.de/?p=130
[17:02] <Upu_M0UPU> Didn't work for me
[17:02] <Maxell> Nice float fsphil. Very solid!
[17:02] <eroomde> though in all my tethered balloons tests (higher loads on the balloon) there's been a fairly strong correlation between length of time before burst and amount of sunlight
[17:02] <LeoBodnar> if there would be a way of keeping it yoyoing at 1-2m/s it could last a few days surely
[17:02] <Maxell> How we wait for it to come say hi to The Hague >:)
[17:02] <LeoBodnar> </speculation>
[17:03] <eroomde> overcast days always seemed much more reliable than a bright summer's day
[17:04] <LeoBodnar> from rubber motor tests i think maximum absorbed energy changes a lot. like ~1% per 1ºK
[17:04] <LeoBodnar> this is purely from tests and not scientific in any way
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[17:05] <LeoBodnar> so extra heat just tips it over ultimate stress threshold
[17:06] <aadamson> is it actually *heat* or UV, I always thought that UV broke down rubber over time?
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[17:07] <LeoBodnar> surely not within few hours?
[17:07] <Reb-SM3ULC> Upu_M0UPU: thanks, will have a look, have had some luck with multimon
[17:07] <aadamson> it's what some people call dry rot (that happens over much longer times periods)
[17:08] <LeoBodnar> however... it's blazing strong sunshine up there
[17:08] <aadamson> the UV at that altitude would be significantly more intense than down where we are wouldn't it... not an expert, just curious
[17:08] <eroomde> yeah, i can honestly believe it
[17:08] <eroomde> when it's really inflated, the latex thickness is not that much
[17:08] <eroomde> not gonna take too many polymer chains broken by UV to cause a weak spot
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[17:08] <aadamson> http://en.wikipedia.org/wiki/UV_degradation
[17:09] <Oddstr13> wonder what other channels i'm missing from my autojoin...
[17:09] <eroomde> all the above with the caveat that i'm not a materials person
[17:09] <eroomde> but i've honestly oberved a decent correlation between tether time and the amount of sunlight
[17:10] <eroomde> tethering being a much more stressful experience for the balloon, so it doesn't last nearly as long as when free-flying
[17:11] <aadamson> http://balloonsblow.org/wp-content/uploads/2011/04/1990-Balloon-Study1.pdf - it's old and I didn't read it, but perhaps applicable
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[17:13] <eroomde> aadamson: that seems to be anout degradation in the environment
[17:13] <eroomde> i.e. are they polluting
[17:14] <aadamson> ah... well, was just googling and didn't read it, title looked appropriate... sorry
[17:14] <aadamson> lots of those kinds unfortunately :)
[17:15] <eroomde> my least favourite thing in the world is paying money for a paper that then turns out to be crap
[17:15] <eroomde> i try and avoid it whenever possible but some research papers look so so good from their abstracts
[17:15] <eroomde> and then turn out to have been written by a confused monkey
[17:15] <malgar> It would be lovely if HIPI would catch a pic of the sunset
[17:16] <aadamson> http://www.zsstar.com.au/ZSSTAR/OtherDetails.aspx?Sel=FAQ - read the last 2 entries
[17:16] <aadamson> the last one, last paragraph specifically
[17:17] <eroomde> so oxidation + UV
[17:21] <LeoBodnar> oxidation would be even worse with O3
[17:23] <eroomde> yeah totally
[17:24] <Geoff-G8DHE> HiPi 259Kms travelled http://360.g8dhe.net/HAB_Flights/2014_Flights/HiPi_20140322/HIPI_201403221724.jpg
[17:25] <DL7AD_> do you have another picture for B-41? Geoff-G8DHE
[17:25] Nick change: DL7AD_ -> DL7AD
[17:25] <eroomde> Geoff-G8DHE: these visuaisations are great, thank you
[17:25] <eroomde> visualisations are great too
[17:26] <LeoBodnar> fsphil: next up are stereo pairs
[17:26] <eroomde> latest ssdv is showing some promise for sunset
[17:26] <daveake> stitched panorama ftw
[17:26] <LeoBodnar> differential encoding could be quite compact?
[17:26] <LeoBodnar> stitched stereo panorama!
[17:26] <daveake> tricky
[17:27] <daveake> need lots ofhorizontal distance between views
[17:27] <LeoBodnar> do it onboard
[17:28] <daveake> yes you could given 100m+ between shots
[17:29] <eroomde> fo 3d clouds?
[17:29] <daveake> yeah
[17:29] <daveake> you need lots of separation
[17:30] <daveake> liking the current image
[17:31] <gonzo_> signals are super strong here
[17:32] <Upu_M0UPU> I've tried to stitch some
[17:32] <Upu_M0UPU> didn't work
[17:32] <Geoff-G8DHE> B-41 6390Kms travelled http://360.g8dhe.net/HAB_Flights/2014_Flights/B-41_20140318/B-41_Flight_Path_and_Profile.jpg
[17:32] <gonzo_> (now i've replaced the psu in the shed, that kept shutiing down)
[17:32] <daveake> I think using video source while it's rotating is the best bet
[17:32] <eroomde> oblig stitch: http://www.nivnac.co.uk/files/HAPSD_NOVA8/HAPS-D_pan1_half.jpg
[17:33] <eroomde> was done by a guy called james canvin who did a lot of stitching of photos back from spirit and oddysey
[17:33] <Geoff-G8DHE> Anybody who has images worth stitching for a spherical (or less) panorama just shout!
[17:33] <mikestir_2E0MXS> what about using magnetometer to aid the stitching, like that photosphere thing on android
[17:34] <Geoff-G8DHE> Video sources are actually quite low definition even the HD ones see the image I did for Babs.
[17:34] <GMT> just FYI, sunset in Belfast tonight is 18.40z, but HIPI is much higher so should be nearer to 19.00
[17:35] <Geoff-G8DHE> Devices for full camera atitude are available I use them myself for standard ones see http://360.g8dhe.net/cameraattitude/cameraattitude.htm
[17:36] <Geoff-G8DHE> standard Spherical Pano's that is
[17:38] <Geoff-G8DHE> Stereo images are certainly fun but take a LOT of work, and to be honest a lot of people don't get on with either the glasses or the spectacles, they do generate a lot of eye strain. :-(
[17:40] <Geoff-G8DHE> Back to video for creating Pano's this was the GoPro video from Bab-s flight http://360.g8dhe.net/default.php?1030
[17:41] <Geoff-G8DHE> whilst this was one of the 3 from ordinary DSLR http://360.g8dhe.net/default.php?1029
[17:41] <Geoff-G8DHE> the layter was a partial spherical
[17:43] <Geoff-G8DHE> Take your pick from them at http://360.g8dhe.net/default.php?HAB to some extent his gimbal was too good! It just didn't pan around enougth :-(
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[17:51] <SP9UOB-Tom> what hapenned to B-41 ?
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[17:52] <Geoff-G8DHE> Still flying and reporting ?
[17:52] <Geoff-G8DHE> Oh not for the last 30 minutes reporting at least
[17:53] <Geoff-G8DHE> looks like its out of range
[17:53] <Geoff-G8DHE> again
[17:54] <Geoff-G8DHE> How about sending our data up to a Geo-Sat ?
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[17:55] <SP9UOB-Tom> shuouldnt be out of range now.
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[17:55] <SP9UOB-Tom> we should try to APRS over SATCOM sattelites :-)
[17:56] <Geoff-G8DHE> http://www.broadbandtvnews.com/2014/03/21/eshailsat-issues-rfp-for-eshail-2/
[17:56] <Geoff-G8DHE> It was digiing via YM9KRS but that was over 30 minutes ago
[17:57] <SP9UOB-Tom> Geoff-G8DHE: looks promissing
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[17:57] <Geoff-G8DHE> It does!
[17:58] <Geoff-G8DHE> Gimbal stablised platforms for aerials ?
[17:59] <Geoff-G8DHE> B-41 was also getting quite slow
[18:00] <Laurenceb> it might come in range of Baku, dunno
[18:00] <Laurenceb> depends how good the receivers are over there, but theres a big cluster around Baku
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[18:02] <tweetBot> @G8DHE: HAB Update: B-41 just about to enter Iran and float over the Caspian sea! 6390Kms travelled http://t.co/Tck2KEy8UQ #ukhas #hab #hamr
[18:05] <tweetBot> @G8DHE: HAB Update: HiPi floating about the Irish Sea http://t.co/AALj2HCDuQ downloaded images http://t.co/d90IGtC4F5 #ukhas #hab #hamr
[18:06] <fsphil> at least it's out of that little vortex it seemed to be stuck in earlier
[18:06] <fsphil> now following the original prediction
[18:07] <SP9UOB-Tom> Geoff-G8DHE: maybe B-41 is running out of fuel ;-)
[18:07] <Geoff-G8DHE> Send it some more beans then ?
[18:08] <Reb-SM3ULC> eroomde: very nice stitch
[18:08] <SP9UOB-Tom> LOL ;-)
[18:09] <malgar> what's the trick for not bursting?
[18:09] <malgar> low necklift?
[18:10] <Geoff-G8DHE> Slow rise i seems less than 45m/s
[18:10] <Geoff-G8DHE> 4-5m/s
[18:10] <fsphil> this one ascended at 1.5m/s initially, and speeded up to 3m/s
[18:10] <SpeedEvil> It varies with the sort of balloon
[18:10] <fsphil> and used a large 1600g hwoyee balloon
[18:10] <fsphil> and a 330g payload
[18:11] <SpeedEvil> The proper answer is 'The superpressure the balloon can take when it nears its elastic limit has to generate a change in density large enough to remove the free lift'
[18:11] <fsphil> nice
[18:12] <SpeedEvil> This is true for very strong balloons only at high ascent rates.
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[18:13] <fsphil> still a lovely signal here. this is the longest I've ever tracked a flight
[18:13] <ibanezmatt13> Anybody got freq for HIPI atm?
[18:14] <fsphil> 434.249
[18:14] <ibanezmatt13> cheers
[18:14] <fsphil> +1500hz
[18:14] <ibanezmatt13> ta
[18:14] <mikestir_2E0MXS> it hasn't moved since last time you checked ibanezmatt13
[18:14] <fsphil> it's drifted only a few 100hz
[18:14] <mikestir_2E0MXS> been rock solid
[18:14] <ibanezmatt13> cool, I hear something just can't see it proprly
[18:14] <mikestir_2E0MXS> nice pic coming up
[18:14] <Geoff-G8DHE> Upu 's colour ?
[18:14] <fsphil> hah
[18:15] <fsphil> upu must have pointed his surefire light at it
[18:15] <fsphil> there's more lens flare in this than a star trek movie
[18:15] <Geoff-G8DHE> Very distinctive glare pattern for the Pi cameras!
[18:16] <fsphil> it is
[18:17] <fsphil> I suspect this will be out of range for sunrise
[18:17] <ibanezmatt13> mikestir_2E0MXS, pm
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[18:23] <Laurenceb> Bell 202 is annoying
[18:23] <Laurenceb> 1.2kbps, 1khz deviation
[18:24] <Laurenceb> at least its phase coherent
[18:24] <Geoff-G8DHE> fsphil, What is the prediction for HiPi ?
[18:25] <fsphil> the original prediction was for it to fly just south of Dublin, and along the south irish coast
[18:25] <fsphil> it seemed to get stuck earlier west of the isle of man
[18:25] <malgar> http://ssdv.habhub.org/images/2014-03-22--18-14-07-HIPI-969.jpeg?u=53 water reflection?
[18:25] <Geoff-G8DHE> right
[18:26] <fsphil> but now heading in the direction of the original prediction
[18:26] <eroomde> that is an odd pattern indeed
[18:26] <fsphil> I don't get the zig zah
[18:26] <fsphil> zag
[18:26] <fsphil> the altitude wasn't changing
[18:26] <Geoff-G8DHE> I thought you might have been tugging the string ...
[18:27] <eroomde> is it a function of the bayer pattern?
[18:27] <fsphil> internal lens reflection maybe?
[18:27] <Geoff-G8DHE> most likely reflections
[18:27] <fsphil> malgar: I think that's a lake
[18:28] <eroomde> like, aliasing of the bayer pattern?
[18:28] <malgar> wonderful pictures
[18:28] <malgar> who is the owner?
[18:29] <fsphil> co-launch between myself and the local schools
[18:29] <Geoff-G8DHE> the spots seem to align with the glare lines so that sort of implies reflections
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[18:29] <eroomde> but why only red channel?
[18:29] <Laurenceb> could it be lens reflection?
[18:30] <eroomde> spose that copuld be because it's the most refracted
[18:30] <Laurenceb> antireflective coating
[18:30] <Geoff-G8DHE> CA on the lens maybe
[18:30] <Geoff-G8DHE> at the acute angles
[18:31] <malgar> fsphil: oh! local schools! we planned a quite similar launch for mid may with local schools. But we just sent the notam request few days ago. I'm not so sure they will allow us. Here they are quite restrictive
[18:31] <Geoff-G8DHE> the lens filter seperation will be very small
[18:31] <LeoBodnar> Laurenceb: i have seen people arguing it should not be continuous phase
[18:31] <db_g6gzh> looks like the lake just S of Mullingar
[18:31] <LeoBodnar> but hard switching between two carriers maintaining their own continuous phase
[18:32] <db_g6gzh> you can just see the one to the N as well
[18:32] <Laurenceb> i read that the spec says continuous phase
[18:32] <Laurenceb> but not on official docs
[18:32] <mattbrejza> LeoBodnar: for aprs?
[18:32] <LeoBodnar> yeah
[18:33] <LeoBodnar> they were arguing that one can use synchronous detector with two LOs
[18:33] <mattbrejza> well persumably coherent detection with discontinuous phase isnt gonna work, but noncoherent detectors (which is probably all of them) wont care
[18:33] <Laurenceb> either way, 1.2kbps, 1khz tone sep makes pll based decoder tricky :-/
[18:33] <LeoBodnar> there are a lot of mad people out there
[18:33] <Reb-SM3ULC> would have been nice with an external temp in HIPI. cousy 10C inside at 36 km.. not bad
[18:34] <LeoBodnar> it's also simpler to code
[18:35] <malgar> fsphil: do you have a webpage for this launch? I really would like to see pictures of the payload
[18:36] <fsphil> malgar: not yet. I'll get some pics uploaded to http://www.sanslogic.co.uk/hab/ at some point
[18:38] <fsphil> altitude is dropping
[18:39] <Laurenceb> sunset
[18:39] <Geoff-G8DHE> just a dip
[18:39] <Reb-SM3ULC> fsphil: nice float so far :) demoing the ssdv for some radioamateurs who are not so into the digital age.. :)
[18:39] <Laurenceb> i like the cloud shadows
[18:41] <fsphil> in the air for about 9 hours. it's only 157km from me
[18:42] <fsphil> cooling down inside the box too
[18:42] <malgar> there was a website collecting all the telemetry and showing it on charts but I d'nt find it anymore
[18:43] <Geoff-G8DHE> But its travelled 299Kms ! http://360.g8dhe.net/HAB_Flights/2014_Flights/HiPi_20140322/HIPI_201403221843.jpg
[18:44] <Laurenceb> malgar: x-f.lv/dev/
[18:44] <db_g6gzh> malgar: http://x-f.lv/dev/habitat-graphs/
[18:44] <malgar> nx
[18:44] <malgar> tnx
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[18:46] <Reb-SM3ULC> fsphil: yeah, noticed very low groundspeed
[18:47] <fsphil> anyone know any radio amateurs on the south irish coast? :)
[18:47] <malgar> this last picture coming down seems promising :)
[18:47] <Reb-SM3ULC> fsphil: normalt is about 100 m/s?
[18:48] <fsphil> I don't often record the ground speeds, but this is definitly the slowest I've done
[18:48] <Reb-SM3ULC> fsphil: was just watching the habhub tracker
[18:49] <gonzo_> what's your forecast on latt life?
[18:49] <fsphil> 26 hours. it was switched on about an hour before launch, so should hopefully transmit until 9/10am tomorrow
[18:52] <malgar> what's the weight of the payload?
[18:52] <fsphil> 330g
[18:52] <fsphil> including chute
[18:53] <malgar> rasp+raspcamera+ntx2? anything else?
[18:53] <fsphil> just the gps module and batteries
[18:53] <malgar> oh right :D
[18:53] <fsphil> box, duct tape and cord
[18:53] <fsphil> contact details stuck on the outside
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[18:56] <fsphil> very faded image
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[19:08] <StaticJay> HIPI hope she keeps heading inland. coming in over heavy populated area though.
[19:09] <fsphil> it's very unlikely to burst at this point
[19:11] <gonzo_> I assume thet even if it comes down on land, you won't be going to retrieve?
[19:11] <fsphil> no. but we do have contact details on this one
[19:11] <StaticJay> Whst s the burst altitude expected to be? She came right over me at Lurgan this morning but too cloudy to scan for with binos.
[19:11] <Reb-SM3ULC> fsphil: what's the exernal temp, normally at taht height?
[19:12] <fsphil> StaticJay: this one was intended to float. it reached 36.3km and stopped ascending
[19:12] <malgar> i think that in a cloudless sky you could see the balloon quite well
[19:12] <gonzo_> I use the metric of cost of fuel vs value of payload
[19:12] <malgar> when is dark on the ground
[19:12] <fsphil> most likely burst time will be tomorrow morning after sunrise
[19:12] <malgar> and still light on the balloon
[19:12] <gonzo_> so about 50miles is the limit for me!
[19:14] <fsphil> already pretty dark here at -6.75
[19:14] <fsphil> I'm not much futher west than the balloon
[19:15] <gonzo_> ohh, almost sunset
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[19:16] <GMT> the signal has dropped to almost nothing here in London, might come back?
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[19:16] <Geoff-G8DHE> B-41 now on Iran border
[19:16] <fsphil> shouldn't be out of range yet GMT, could be local geography
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[19:18] <DL7AD> new message from B-41
[19:19] <fsphil> "help me"
[19:19] <malgar> ol
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[19:19] <malgar> lol
[19:20] <SP9UOB-Tom> don't mess with iranians ;-)
[19:20] <Geoff-G8DHE> No longer likely to be turned into a Kebab, but might be stoned instead!
[19:20] <Laurenceb> not so cold now
[19:20] <DL7AD> :D
[19:21] <LeoBodnar> \o/ Iran
[19:21] <Laurenceb> iRan
[19:21] <malgar> u ran
[19:21] <SP9UOB-Tom> run Leo Run
[19:21] <Laurenceb> http://archive.thr5.com/bloodforoil.org/iRaq-posters/2768877221143077.jpg
[19:22] <DL7AD> ^^
[19:23] <DL7AD> what about a radionuclide battery next time?
[19:23] <SP9UOB-Tom> DL7AD: it provide very little current
[19:25] <SP9UOB-Tom> just bigger mylar envelope, and HF tracking
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[19:27] <DL7AD> wasnt in baku/azerbaijan the eurovision song contest?
[19:28] <Geoff-G8DHE> So was Dublin once ;-)
[19:28] <Geoff-G8DHE> Is this a tour of Eurovision contest ?
[19:28] <malgar> :D
[19:28] <SP9UOB-Tom> DL7AD: 6-10 may Copenhagen
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[19:30] <DL7AD> found an 4511 on my table. dont know how it gets there....
[19:30] <Geoff-G8DHE> Notice POP1 has a UV sensor on it, could do with one inside the balloon as well see if the UV rises as it degrades ?
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[19:32] <DL7AD> did leo implement stealth technology in his balloon? :D
[19:33] <SP9UOB-Tom> DL7AD: convex ballon (even metalized) has very low radar crossection
[19:34] <mikestir_2E0MXS> Geoff-G8DHE: I've just been looking at UV photodiodes - they are not cheap!
[19:35] <Geoff-G8DHE> Yes can believe that not many uses for them I suspect so low volume ..
[19:35] <Geoff-G8DHE> Do you know which one is beng used in POP1 ?
[19:36] <mikestir_2E0MXS> no, I was wondering the same
[19:36] <Geoff-G8DHE> brb
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[19:37] <fsphil> it didn't drop that much
[19:37] <amell> beautiful sunset :)
[19:37] <amell> leobodnar: congratulations on your invasion of Iran
[19:38] <eroomde> the silverstone wing of putin's master plan
[19:38] <LeoBodnar> heh
[19:39] <LeoBodnar> is he still racing bears?
[19:39] <amell> Might just clip the south end of armenia.
[19:39] <eroomde> arko: ^
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[19:40] <Pascend-Ross> fsphil: Awesome pictures!
[19:40] <amell> like the one where camera looks straight into the sun. surprisingly good picture considering
[19:41] <amell> http://ssdv.habhub.org/images/2014-03-22--18-14-07-HIPI-969.jpeg?u=53
[19:41] <fsphil> thanks Pascend-Ross
[19:41] <jonsowman> yeah well done today fsphil
[19:41] <jonsowman> I've been keeping an eye
[19:41] <jonsowman> great work :D
[19:42] <SP9UOB-Tom> im wondering if camera is sensitive enough to grab star light
[19:42] <fsphil> if I've programmed it right it should increase brightness and exposure time after 20:00
[19:42] <SP9UOB-Tom> so we'll see
[19:42] <fsphil> no idea what effect that'll have
[19:43] <fsphil> it may just mean we'll get lots of dark grey images instead of lots of black ones
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[19:43] <malgar> fsphil: :O
[19:43] <malgar> the moon will rise in few hours
[19:43] <amell> what country is between iran and armenia? its not labelled on google map.
[19:43] <Geoff-G8DHE> How long an exposure ?
[19:44] <fsphil> I tell it to do 1 second but it seems to ignore that
[19:44] <fsphil> or at least is quite variable
[19:45] <Geoff-G8DHE> Its a thin part of Turkey I think!
[19:45] <amell> strange, apparently its a part of azerbaijan, which is separated by armenia.
[19:45] <SP9UOB-Tom> amell: crakosia ;-)
[19:45] <Geoff-G8DHE> Oh right its still automatic then, 1 second thinks how much swing/rotation in one second ?
[19:46] <amell> Its an 'exclave' of azerbaijan called nakhchivan. learn something new every day.
[19:46] <Geoff-G8DHE> Ah yes, how odd!
[19:47] <Geoff-G8DHE> Would make good geaography lesson material tracking Leo's balloons
[19:47] <Geoff-G8DHE> -a
[19:48] <fsphil> the predictor has this balloon travelling almost directly west
[19:48] <Geoff-G8DHE> got a url ?
[19:48] <fsphil> http://predict.habhub.org/#!/uuid=85da87242d5272fcdba2d8232012dfa7cd41405a
[19:48] <fsphil> it's well out
[19:49] <Geoff-G8DHE> next stop North West Passage eh!
[19:49] <amell> fsphil: do you have a cutdown? not planning to recover?
[19:49] <fsphil> amell: nah it's disposable
[19:49] <fsphil> if we get it back that's a bonus
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[19:50] <nosebleedkt> hello
[19:50] <DL7AD> evening nosebleedkt :)
[19:50] <nosebleedkt> does anyone have ssdv.exe for windows WITHOUT RS8 code?
[19:50] <nosebleedkt> :)
[19:51] <nosebleedkt> is fsphil actually flying right now? :)
[19:51] <DL7AD> that could now fsphil
[19:51] <fsphil> well not me personally nosebleedkt
[19:51] <LeoBodnar> amell: it's a bit of Azerbaijan
[19:52] <fsphil> I am in a somewhat comfie chair
[19:52] <Geoff-G8DHE> No I don't believe he is an Angel ;-)
[19:52] <LeoBodnar> expect anybody?
[19:54] <amell> surprised b41 didn't get picked up in yerevan.
[19:54] <LeoBodnar> there seem to be no single true APRS station in Armenia
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[19:54] <amell> EK9YS?
[19:55] <LeoBodnar> there are some Mickey Mouse TCPIP toys
[19:55] <DL7AD> LeoBodnar: you can see if they have a feed by clicking no "info" and then looking for "Positions stored"
[19:56] <DL7AD> if there is a larger amount of packets, it will be an igate
[19:56] <amell> can't find any aprs in iran. i'm thinking we will probably lose track soon.
[19:56] <LeoBodnar> i know. there ain't any
[19:57] <amell> Kandahar/Kabul next tracking possibly.
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[19:58] <fsphil> you can see the NTX2 correcting for temperature
[19:58] <fsphil> NTX2B*
[19:58] <fsphil> it jumps about 100hz every so often
[19:58] <amell> very very surprised no aprs stations in dubai/abu dhabi
[19:58] <db_g6gzh> it took a bit of a wander while I wasn't looking a few minutes back
[19:59] <fsphil> the GPU is at -20c
[19:59] <db_g6gzh> this radio isn't remote tuneable and it went out of the passband
[19:59] <fsphil> getting nippy
[19:59] <db_g6gzh> the other deafer one usually retunes nicely
[19:59] <eroomde> you should have a wee program to encode h.264 on the fly
[19:59] <eroomde> to warm it up
[19:59] <fsphil> have it run seti@home
[20:00] <LeoBodnar> use D cells
[20:00] <Geoff-G8DHE> There are some EP* callsigns if you search on APRS.FI
[20:00] <db_g6gzh> it's still drifting down
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[20:01] <Geoff-G8DHE> Take that back no amateur callsigns
[20:01] <amell> Im not sure we will hear from B-41 again for quite some time, if at all.
[20:02] <Geoff-G8DHE> Ah yes EP3RB is in Tehran
[20:02] <SP9UOB-Tom> ... "Iranian ballons answered with rocket fire, and went away with MACH1.5"...
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[20:03] <amell> worth contacting EP3RB and letting him know?
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[20:03] <mikestir_2E0MXS> bah. my femtocell has fallen over again
[20:03] <mikestir_2E0MXS> useless
[20:05] <fsphil> well the increased brightness an exposure time didn't help much
[20:05] <fsphil> that last image has a few lights on the ground
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[20:10] <fsphil> needs a bit more adjusting I think
[20:10] <fsphil> it should be possible to get some interesting images at night
[20:10] <mikestir_2E0MXS> does it have an interchangeable lens?
[20:11] <fsphil> officially no but it can be done
[20:11] <mikestir_2E0MXS> could 3D print a C mount for it and fit a nice big CCTV lens
[20:13] <fsphil> mmm
[20:13] <fsphil> I'll can also have it grab a raw image and stretch the levels
[20:13] <fsphil> images will be very noisy but it might bring out some detail
[20:14] <aadamson> nice work fsphil a couple of those images need to be *stiched* together for a realy awesome shot!
[20:15] <fsphil> hah. low resolution pano
[20:15] <Geoff-G8DHE> Enhanced http://360.g8dhe.net/HAB_Flights/2014_Flights/HiPi_20140322/2014-03-22-20-11-33-HIPI-68.jpeg
[20:15] <fsphil> could probably identify those
[20:16] <mikestir_2E0MXS> I must find the time to do something with those aptina sensors I bought - they are only 2 Mpixel and I know them to be good in low light
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[20:20] <StaticJay> What so B-41's flight time so far?
[20:20] <Reb-SM3ULC> LeoBodnar: pretty small marginal into iran.. :) but proof anyway..
[20:22] <fsphil> I see a star
[20:22] <malgar> cities below!
[20:22] <fsphil> image 106
[20:22] <Geoff-G8DHE> http://360.g8dhe.net/HAB_Flights/2014_Flights/HiPi_20140322/index.php?ind=41
[20:22] <fsphil> or is that a planet
[20:22] <fsphil> what phase is the moon tonight?
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[20:22] <malgar> jupiter is up in the sky
[20:22] <malgar> I guess it is sirius
[20:22] <fsphil> it might be bright enough to light up the ground a bit
[20:22] <Geoff-G8DHE> Waning Gibbous
[20:23] <malgar> it will rise in few hour
[20:23] <malgar> s
[20:24] <Geoff-G8DHE> 63% of the moon is illuminated
[20:25] <fsphil> look at all that light pollution
[20:25] <fsphil> there's enough detail there to identify these
[20:26] <Geoff-G8DHE> Oh what did it do then ?
[20:26] <fsphil> um?
[20:27] <Geoff-G8DHE> Had a very long pause with a single carrier
[20:27] <fsphil> oh taking a picture
[20:27] <fsphil> takes longer in night mode
[20:27] <Geoff-G8DHE> must have had a 5 second exposur then!
[20:27] <fsphil> it pauses for a while to let the agc do its thing
[20:28] <Geoff-G8DHE> Must be a star http://360.g8dhe.net/HAB_Flights/2014_Flights/HiPi_20140322/index.php?ind=42
[20:28] <Geoff-G8DHE> or planet
[20:29] <fsphil> brightest object near the horizon is Sirius. Vega is also low enough
[20:29] <fsphil> Jupiter is quite high up
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[20:31] <fsphil> need a higher quality jpeg mode for this
[20:32] <Reb-SM3ULC> fsphil: beam up new settings? :)
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[20:32] <daveake> I like the idea of sending hires images from earlier once it's dark
[20:32] <fsphil> now where did I put that 36km long USB cable
[20:32] <fsphil> yea
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[20:33] <Reb-SM3ULC> send("unfold cable");
[20:33] <StaticJay> How does the permission work for multiple airspace crossings ?
[20:33] <fsphil> if it didn't use so much power when idle, I'd have left the wifi adaptor in
[20:34] <Geoff-G8DHE> The Balloon phones up on reaching the border ;-)
[20:34] Nick change: GargantuaSauce_ -> GargantuaSauce
[20:34] <fsphil> StaticJay: the IAA have told me they don't require notification if it enters irish airspace, however they would like to be informed. we didn't in this case as it's so high up and quite late in the evening - nobody would be there
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[20:35] <StaticJay> And how would the same apply to B-41?
[20:36] <fsphil> that's a bit trickier :)
[20:36] <LeoBodnar> if you don't get a permission then you won't get your balloon back
[20:36] <fsphil> it gets away by being very very tiny
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[20:37] <LeoBodnar> and the hamster pilot will be interrogated
[20:37] <StaticJay> scanning news for Iranian jet scramble.
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[20:38] <daveake> "new lead on whereabouts of missing 777"
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[20:39] <fsphil> I kinda hope this turns east
[20:39] <fsphil> doubt it will
[20:41] <Geoff-G8DHE> Waterford ? on the left ? http://360.g8dhe.net/HAB_Flights/2014_Flights/HiPi_20140322/index.php?ind=47
[20:42] <jededu_> daveake link?
[20:42] <fsphil> Geoff-G8DHE: or Cork?
[20:43] <Geoff-G8DHE> Yes could be and the next one
[20:43] <Geoff-G8DHE> Oops had finshed and its overwritten it
[20:44] <fsphil> still got light on the horizon
[20:44] <fsphil> that's neat
[20:45] <Geoff-G8DHE> Helps set the direction!
[20:45] <fsphil> does!
[20:45] <Geoff-G8DHE> must be due west given the proximity to equinox
[20:47] <fsphil> I imagine in the summer it never really gets dark up there
[20:47] <Geoff-G8DHE> Fly again later this year and find out :-)
[20:47] <fsphil> certaily will
[20:47] <fsphil> I want at least one of my launches to be on a nice day
[20:48] <daveake> you ask a lot :)
[20:48] <fsphil> haha
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[20:49] <fsphil> better image there
[20:49] <fsphil> no motion blur
[20:50] <Geoff-G8DHE> yes nice and sharp
[20:50] <StaticJay> I love summer equinox when when leo sats are constantly lit makes for a good night out.
[20:51] <fsphil> sunset would be later at altitude too
[20:51] <Geoff-G8DHE> Had to think about that Leo hasn't flown any sats!
[20:51] <fsphil> a balloon would be illuminated longer
[20:51] <fsphil> haha
[20:51] <fsphil> isleoorbiting.com
[20:51] <Geoff-G8DHE> :)
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[20:52] <cm13g09> I do love the "IsLeoFlying.com"
[20:53] <cm13g09> fsphil: is that your creation?
[20:53] <Geoff-G8DHE> Arko's
[20:53] <cm13g09> ah right :P
[20:53] <fsphil> that's arko's
[20:53] <arko> haha
[20:53] <arko> best $5 i ever spent
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[20:53] <Lunar_Lander> evening
[20:53] Action: cm13g09 goes back to dealing with stupid electronics faults....
[20:54] <Geoff-G8DHE> Its not spinning much now the lights give enough to make control points tostitch!
[20:54] <fsphil> not much astronomy going on for this flight
[20:54] <arko> for those interested in digital signal processing: https://www.youtube.com/user/allsignalprocessing
[20:54] <arko> really good youtube channel on the matter
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[20:54] <Lunar_Lander> thanks arko
[20:55] <Geoff-G8DHE> Ah a star on this one at the very top
[20:56] <Geoff-G8DHE> sry last one
[20:56] <Geoff-G8DHE> yes and that one
[20:57] <fsphil> I don't see it
[20:57] <fsphil> something there but it could be noise
[20:57] <Geoff-G8DHE> look on my enhanceed images http://360.g8dhe.net/HAB_Flights/2014_Flights/HiPi_20140322/index.php?ind=52
[20:58] <Lunar_Lander> is the arching of B-41 from its APRS data?
[20:58] <fsphil> ah yes, see it now
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[20:59] <fsphil> jupiter should show up quite bright when it gets low enough
[21:00] <mikestir_2E0MXS> what's the predicted route now fsphil?
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[21:03] <fsphil> http://predict.habhub.org/#!/uuid=70a1f2f7ad6fab5d005e51e5c82f31328c7b2e31
[21:03] <fsphil> matching this a bit more now
[21:03] <fsphil> it'll be out of range long before sunrise from the looks of it
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[21:07] <LeoBodnar> RTW backwards!
[21:10] <Geoff-G8DHE> Lot of light on that one
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[21:11] <Geoff-G8DHE> Its hardly moving again
[21:12] <cuddykid> very cool photos fsphil
[21:15] <fsphil> nice to relax after it's all worked :)
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[21:16] <cuddykid> what balloon is it under fsphil ?
[21:16] <fsphil> a 1600 hwoyee
[21:16] <cuddykid> nice, good old floaty favourite
[21:18] <fsphil> I'll have to try doing this on a 100g sometime
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[21:26] <Geoff-G8DHE> Star at the top again but blurred with moment
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[21:35] <amell> http://ssdv.habhub.org/images/2014-03-22--21-26-06-HIPI-996.jpeg?u=21 is pretty clear
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[21:37] <amell> Impressed that HIPI can be picked up in Calais
[21:37] <fsphil> image 126 is is Dublin
[21:37] <fsphil> http://www.siliconrepublic.com/fs/img/Dublin-night.jpg
[21:38] <Geoff-G8DHE> Makes sense as its moving away from it
[21:38] <gonzo_> is it still seem to have lost oit now. Think that's my local horizon
[21:38] <amell> any guesses as to exact position of B-41 now
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[21:40] <fsphil> still a fairly good signal here
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[21:41] <amell> colin1 has appeared in the middle of the north sea.
[21:41] <Geoff-G8DHE> Hope he can swim
[21:42] <fsphil> that star in the Dublin image must be Vega
[21:42] <fsphil> it's the only bright object on the northern horizon
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[21:43] <fsphil> what's going on in 129
[21:43] <amell> what, you have no star tracker inertial navigation system installed?
[21:43] <fsphil> blurry dublin maybe
[21:44] <Geoff-G8DHE> Its the right basic shape
[21:44] <Geoff-G8DHE> but no Vega or star ?
[21:45] <amell> http://www.navysbir.com/08_1/188.htm
[21:45] <fsphil> it would be too blurry to show
[21:46] <Geoff-G8DHE> no trace on my enhanced either
[21:46] <aadamson> http://www.gi.alaska.edu/AuroraForecast/NorthPolar/2014/03/22 - hmm would be way cool, but doesn't look like it's far enough south...
[21:46] <fsphil> hah
[21:46] <Geoff-G8DHE> but it has to be Dublin
[21:46] <fsphil> yes that would be cool
[21:47] <Geoff-G8DHE> Have to have a complete kit set-a-side ready to fly when one appears ?
[21:47] <fsphil> the notam's the problem
[21:48] <Geoff-G8DHE> yes :(
[21:49] <Geoff-G8DHE> That last one is totally black
[21:50] <aadamson> in fl-digi is it 1.5 stop bits or 2?
[21:50] <fsphil> 1.5
[21:50] <aadamson> thanks
[21:50] <aadamson> just wondering if I can decode anything from the websdr, it can *barely* hear it so I doubt it
[21:51] <fsphil> it may get some image packets
[21:51] <aadamson> yeah I don't think soo... very weak and the repeater just came up
[21:53] Nick change: G8APZ_away -> G8APZ
[21:56] <db_g6gzh> almost 6kHz low at -33°C
[21:58] <fsphil> it'll actually be colder than that
[21:58] <fsphil> the gpu is probably the warmest part of the payload
[21:58] <Geoff-G8DHE> I think that must be some haze coming up over Dublin
[21:59] <db_g6gzh> ah, internal sensor
[21:59] <fsphil> yea could be cloud
[22:00] <fsphil> yay star
[22:00] <Geoff-G8DHE> But no dublin ?
[22:00] <Geoff-G8DHE> suppose it has moved a bit
[22:01] <G8APZ> Image 129 that colour looks auroral
[22:02] <aadamson> your gonna have to figure out how to superimpose a compass rose/heading on the video frames for next time :)
[22:02] <aadamson> osd time :)
[22:02] <db_g6gzh> it peaked at over 19°C some time after start of float so must be a fairly warm bit
[22:11] <G8APZ> still seeing the trace but no decodes for a while now... I think the Welsh mountains don't help!
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[22:12] <G8APZ> Last partial 7 minutes ago
[22:12] <fsphil> still not too bad here
[22:12] <fsphil> 0x17
[22:12] <fsphil> ^ may be the last station to hear it
[22:12] <G8APZ> It has descended a few km since an hour ago though
[22:13] <fsphil> yea what's caused that recent drop
[22:13] <G8APZ> You could do with a few receivers in Eire
[22:13] <fsphil> unfornatually I don't know any
[22:14] <G8APZ> EI3KD near Cork?
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[22:15] <G8APZ> Unfortunately Mark is not in ON4KST chat
[22:15] <Geoff-G8DHE> Lights are dimming
[22:16] <fsphil> yea wonder if a layer of cloud has came in
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[22:19] <Geoff-G8DHE> 141 when enhanced has a star again - BUT - surely the stars should be above the cloud layers ?
[22:19] <G8APZ> aadamson did you know about the 2011 Cairo 777 cockpit fire?
[22:19] <Geoff-G8DHE> unless very low on horizon ?
[22:20] <amell> aadamson: http://www.telegraph.co.uk/news/worldnews/northamerica/usa/10711590/Malaysia-Airlines-MH370-Cairo-777-cockpit-fire-could-yield-clues-to-missing-plane.html
[22:21] <aadamson> yeah interesting
[22:21] <aadamson> we'll see what these latest chinese sat pictures turn up if anything
[22:21] <aadamson> similar place as the Australia pictures
[22:21] <amell> problem is that area of ocean has a lot of flotsam - indian ocean gyre
[22:25] <RaptorJesus> i'm so high
[22:25] <G8APZ> 0x17 doesn't seem to be listening...
[22:26] <G8APZ> Wrapped your cheeses high as a kite?
[22:26] <RaptorJesus> hey
[22:26] <RaptorJesus> can I put a retractable deltawing kite on a tricopter and teach it to glide?
[22:27] <Geoff-G8DHE> down to 33Km
[22:28] <Geoff-G8DHE> Not in the UK
[22:29] <RaptorJesus> nobody knows if it would work?
[22:29] <RaptorJesus> or could work
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[22:34] <amell> why not?
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[22:35] <fsphil> brrr cold out there
[22:35] <fsphil> nice clear sky here
[22:35] <Lunar_Lander> not allowed by law
[22:35] <Lunar_Lander> UAV stuff
[22:35] <amell> as long as you remain under 400 ft?
[22:35] <SIbot> In real units: 400 ft = 122 m
[22:36] <Lunar_Lander> good question
[22:36] <mikestir_2E0MXS> it has to be in sight at all times and with a manual override
[22:37] <amell> Do you intend to cause harm to person with this glider?
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[22:38] <Laurenceb> http://hackaday.com/2014/03/21/need-to-reference-the-us-constitution-fast-hows-6-seconds-sound/
[22:41] <fsphil> http://ssdv.habhub.org/images/2014-03-22--21-58-59-HIPI-9A0.jpeg - Mars and Spica
[22:42] <Upu_M0UPU> interesting its still getting detail
[22:43] <fsphil> processor is -34.2C :)
[22:43] <fsphil> could overclock it
[22:43] <Upu_M0UPU> meh be fine
[22:44] <Upu_M0UPU> I noticed it drifted as it got colder
[22:44] <Upu_M0UPU> down at 242 now
[22:44] <fsphil> it did a little 100hz shift too, suddenly
[22:44] <fsphil> guess it was the module trying to correct
[22:44] <Geoff-G8DHE> This one looks good as well http://360.g8dhe.net/HAB_Flights/2014_Flights/HiPi_20140322/index.php?ind=84
[22:44] <LeoBodnar> rubbish. 1) Arduino 2) no explosive bolts http://hackaday.com/2013/03/04/drm-chair-only-works-8-times/
[22:46] <G8APZ> Some people must have too much time on their hands to make rubbish furniture like that!
[22:47] <amell> what is the POINT of this?
[22:47] <LeoBodnar> well it's creative art but it could be more creative and more radical
[22:48] <G8APZ> nichrome and hard wax... I know ... cutdown mechanism!!
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[22:49] <Laurenceb> 10ohm resistor and nylon line works nicely
[22:49] <Laurenceb> as long as you have ~12v to power it
[22:49] <amell> they could have created something more useful, like a HAB
[22:50] <LeoBodnar> destroying useless is almost equal to creating useful
[22:51] <G8APZ> I think I've seen HIPI for the last time... sigs in the noise here
[22:51] <amell> interesting http://uk.mouser.com/new/Texas-Instruments/ti-bq25504/
[22:51] <LeoBodnar> "An Arduino with a small switch keeps track of how many times the chair has been used, while a solenoid taps out how many uses are left in the chair every time the user gets up. " wth? isn't it useful to know how many times is left *before* you sit on it?
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[22:55] <G8APZ> Reboot Arduino every 7
[22:55] <G8APZ> or burn the chir
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[22:55] <G8APZ> chair
[22:56] <Laurenceb> eroomde: whats the operating temperature range of metron protractors?
[22:57] <eroomde> afraid i actually can't recall off the top of ym head
[22:57] <eroomde> i mean i think at least military range
[22:57] <G8APZ> LeoBodnar Any idea when B-41 may encounter more APRS receivers?
[22:57] <eroomde> -50 / +200 type thing
[22:57] <G8APZ> I don't suppose Iraq and Iran are likely to be well equipped!
[22:57] <amell> its not in iraq, its in iran somewhere now
[22:57] <eroomde> fail
[22:57] <G8APZ> OK
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[22:58] <eroomde> http://www.monetti.net/pdf/en/PRODUCTS_ACTUATORS_GAS_GENERATORS/01/DR%202006%20C2%20EN.pdf
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[22:58] <eroomde> oh it'sw not there, sorry Laurenceb
[22:59] <eroomde> but as i recall it was a usefu range
[22:59] <Laurenceb> yeah i count see the temperature spec in the datasheet
[22:59] <Laurenceb> right
[22:59] <amell> need a new multimeter. lost mine.
[22:59] <eroomde> certainly no probs at altitude
[22:59] <Laurenceb> ok
[22:59] <eroomde> used themm all over for hab stuff
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[23:01] <Laurenceb> looks like they are easy to fire - 1A, ~2v
[23:07] <LeoBodnar> G8APZ: perhaps China
[23:08] <G8APZ> LeoBodnar amazing... lots of countries yet to fly over, but I doubt if many have Ham Radio APRS
[23:09] <G8APZ> not sure if you have all the Asian countries programmed in who allow airborne
[23:09] <LeoBodnar> I am very please by Turkey APRS performance, they have strong HAM community there
[23:09] <LeoBodnar> +d
[23:09] <RaptorJesus> no I do not intend to cause harm
[23:09] <RaptorJesus> just a different approach at vtol
[23:10] <RaptorJesus> http://www.hobbyking.com/hobbyking/store/__37328__hkpilot_mega_v2_5_flight_controller_usb_gyro_acc_mag_baro.html
[23:11] <RaptorJesus> + http://store.3drobotics.com/products/dronecell
[23:11] <amell> thats just an ardupilot ripoff.
[23:11] <RaptorJesus> a cheap ardupilot ripoff that works
[23:11] <RaptorJesus> with APM
[23:12] <natrium42> hey guys, what is POP1 in the tracker?
[23:13] <LeoBodnar> it seems to be stuck in HAB's Hell
[23:13] <craag> natrium42: It's a southampton uni payload being tested.
[23:14] <G8APZ> tested in a cryonics box... -255!!
[23:14] <RaptorJesus> how much wing area would I need to lift 4 pounds in thermals
[23:18] <SpeedEvil> you need to say what a thermal is
[23:18] <SpeedEvil> - 1m/s or 20m/s
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[23:19] <SpeedEvil> Also what sort of wing
[23:22] <G8APZ> 4 pounds or 2Kg is a lot to lift
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[23:29] <fsphil> star trail
[23:30] <fsphil> or perhaps planet trail, if that's Mars
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[23:30] <fsphil> what range are you decoding now Upu_M0UPU?
[23:31] <Upu_M0UPU> 423
[23:31] <Upu_M0UPU> and its clear of the hills now
[23:31] <Upu_M0UPU> so I'll leave the kit on
[23:31] <fsphil> interesting
[23:32] <Upu_M0UPU> image 81 is great
[23:32] <Upu_M0UPU> interesting why ?
[23:32] <fsphil> you could almost map the hill based on the radio signal
[23:32] <fsphil> or lack of
[23:32] <Upu_M0UPU> indeed
[23:32] <fsphil> create a profile of your horizon
[23:32] <Upu_M0UPU> it was 19km alt before I recieved you
[23:32] <Upu_M0UPU> did it before
[23:33] <fsphil> yea I think 81 is the best one
[23:33] <Upu_M0UPU> http://i.imgur.com/NwY7Gic.jpg
[23:33] <eroomde> is that the flare one?
[23:33] <eroomde> it's spectac
[23:33] <Upu_M0UPU> yeah
[23:34] <fsphil> nice seeing the sun reflecting of the water
[23:34] <gonzo_> 75 is nice. Lots of detail in the clouds
[23:35] <fsphil> moon rises in an hour
[23:35] <Upu_M0UPU> and image 30 for the cloud head
[23:36] <Upu_M0UPU> oh that should be interesting]
[23:36] <Upu_M0UPU> will have to wait till the morning for me
[23:36] <Upu_M0UPU> night all
[23:37] <fsphil> g'nite!
[23:37] <G8APZ> ah GREEN!!!!
[23:38] <G8APZ> I think HIPI has cleared the Welsh mountains as far as my view is concerned
[23:39] <G8APZ> fsphil Is HIPI an educational flight?
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[23:40] <G8APZ> Pie in the Sky
[23:40] <G8APZ> Pi in the sky
[23:41] <G8APZ> 9 to 11 dB/n
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[23:43] <fsphil> G8APZ: sorta
[23:43] <fsphil> it was organised by the school but it's basically my payload
[23:44] <G8APZ> fsphil something for students to enthuse about?
[23:44] <fsphil> they're building a payload but the predictions had been so awful for so long, they decided to do something like my Orion flight
[23:44] <fsphil> ironically the predictions are fine now
[23:44] <G8APZ> fsphil it will cost a bit to lose this payload... and a float seems to indicate that
[23:45] <fsphil> it's only a raspberry pi, the payload isn't that expensive
[23:45] <G8APZ> fsphil teacjing by doing is a great way to learn... and this sort of thing encourages electronics, engineering, design, and physics amongst other skills
[23:46] <fsphil> I hope so
[23:46] <fsphil> I'm going to try and get them programming the next one
[23:46] <LeoBodnar> wut?! http://blogs.esa.int/atv/files/2014/02/HAPTICS-1-Body-Mounted-Operation.jpg
[23:46] <G8APZ> yes and programming too
[23:47] <G8APZ> LeoBodnar WTF?
[23:48] <LeoBodnar> http://blogs.esa.int/atv/2014/02/03/space-station-gets-force-feedback-with-haptics-1/
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[23:49] <fsphil> what's with the altitude bump on HIPI
[23:50] <G8APZ> 34km ... climbing again?
[23:51] <G8APZ> LeoBodnar all that robotic stuff is beyond my comprehension!!
[23:51] <db_g6gzh> it was moving slower while at the slightly lower altitude
[23:51] <fsphil> looks like it jumped 2km
[23:52] <fsphil> descending again
[23:52] <LeoBodnar> it is probably absorbs IR from the ground underneath and rises
[23:52] <LeoBodnar> +ing
[23:53] <G8APZ> LeoBodnar yes BUT... it's over the sea!
[23:54] <G8APZ> clear waterfall display ... Contestia would decode with this sig level
[23:54] <LeoBodnar> it seems to be rising over the sea and dropping over ground
[23:55] <G8APZ> I have 9dB or 10dB and no decodes
[23:55] <G8APZ> FLdigi "dB"
[23:56] <G8APZ> new unit dBFLD
[23:57] <db_g6gzh> The temperature has settled, so I'll leave the kit running. It'll probably go out of range before it warms up enough to drift out of passband. Night all.
[23:57] <G8APZ> GN
[23:57] <fsphil> the altitude increase did seem to co-incide with it heading out over water
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[23:59] <G8APZ> fsphil I applaud any initiatives to help young students become interested in Science based stuff... too many seem to be disinterested... needs exciting projects to get them hooked
[00:00] --- Sun Mar 23 2014