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[06:27] <SamSilver> morning Dave
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[06:43] <daveake> morning dave
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[06:49] <MrScienceMan> fsphil: i've put WIDE1-1,WIDE2-1 as path
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[07:27] <fsphil> you could add some more hops to that MrScienceMan, when it's near the ground
[07:39] <MrScienceMan> ahh i see, that path is for when you have a home station
[07:39] <MrScienceMan> eats the first WIDE and then all other stations get 1 hop
[07:39] <MrScienceMan> so WIDE3-3 i guess
[07:41] <MrScienceMan> ill ajust path and timing with altitude
[07:45] <Darkside> eek
[07:45] <Darkside> don't use WIDE3-3 unless you REALLY mean it
[07:45] <Darkside> WIDE2-2 should be sufficient
[07:46] <MrScienceMan> WIDE3-3 for while am in the city
[07:46] <Darkside> even still, WIDE3-3 is pretty nasty to the network
[07:46] <Darkside> i only use it when i know i'm more than 2 hops away from an igate
[07:47] <MrScienceMan> there are some cards with digis around
[07:47] <MrScienceMan> so you are right, its at most 2 hops
[07:47] <MrScienceMan> to a igate
[07:47] <Darkside> mm
[07:48] <MrScienceMan> and in the air, 1 hop is enough, even no hop
[07:48] <Darkside> yeah, we fly WIDE2-1 on the way up, and WIDE2-2 on the way doen
[07:48] <Darkside> we need the extra hop on the way down, particularly when its near landing
[07:48] <Darkside> but when its in the air, we get into igates directly
[07:49] <Darkside> 17:18 < MrScienceMan> and in the air, 1 hop is enough,
[07:49] <Darkside> ack
[07:49] <Darkside> http://aprs.fi/#!mt=roadmap&z=11&call=a%2FVK5ARG-11&timerange=36000
[07:49] <Darkside> for thst flight we were getting into an igate the whole time
[07:53] <MrScienceMan> ahh, i see you got telemetry up
[07:53] <MrScienceMan> i put mine in the comment
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[07:58] <MrScienceMan> Darkside: what interval did you use for transmissions?
[08:01] <WillDuckworth> Package received last night ok Upu - thanks
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[08:02] <UpuWork> nps let me know how you get on with those
[08:02] <UpuWork> the AVR needs to run at 4Mhz to stay in spec for 1.8v
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[08:08] <Darkside> MrScienceMan: 30 seconds
[08:11] <MrScienceMan> Darkside: throughout the flight
[08:12] <MrScienceMan> im thinking of shortening the interval to 11sec when it nears the ground
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[08:14] <Darkside> nah
[08:14] <Darkside> 30 seconds is enough
[08:14] <Darkside> and some digi's won't digi you if you transmit too often
[08:15] <MrScienceMan> i just want to get one accurate packet before it hits the ground and bends the antenna
[08:15] <MrScienceMan> 11-15sec should be fine
[08:15] <Darkside> i wouldn't do it
[08:15] <Darkside> or if you do, check with the local network operators first
[08:15] <MrScienceMan> 30sec is 150m
[08:15] <Darkside> yeah, thats enough
[08:16] <Darkside> are you only flying APRS?
[08:16] <MrScienceMan> ep
[08:16] <MrScienceMan> yep
[08:16] <Darkside> ok
[08:16] <Darkside> even still, you shoudl have an APRS receive in your chase car
[08:16] <Darkside> aprs receiver*
[08:16] <MrScienceMan> we will have a someone high on a mountain
[08:16] <Darkside> not really good enough
[08:16] <MrScienceMan> i know
[08:16] <Darkside> you want someone within a few km of it as it comes down
[08:16] <Darkside> you should be able to receive it on the ground
[08:17] <Darkside> another option is once it lands, have it 'beep' the TX
[08:17] <Darkside> so you can DF it
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[08:17] <Darkside> once it lands its unlikely to get into the APRS network anyway, so do what you can to help whoever is trying to recover it
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[08:18] <MrScienceMan> the TX beep is a really good idea
[08:18] <MrScienceMan> i can RX with my ezcap dongle
[08:18] <Darkside> just bring a 3 element yagi with you
[08:18] <MrScienceMan> probablly
[08:18] <Darkside> ahh
[08:18] <Darkside> ok maybe not such a good idea then
[08:18] <Darkside> you want a handheld scanner which you can direction find with
[08:19] <Darkside> you'll be able to get within a few hundred metre of it with the last packet
[08:19] <MrScienceMan> i've got a handheld
[08:19] <Darkside> and when you're that close, you'll be able to hear it with a bent antenna anyway
[08:19] <Darkside> what antenna are you using?
[08:19] <MrScienceMan> ground plane
[08:19] <Darkside> yeah, but whats the main element?
[08:20] <Darkside> i'd suggest using either a comet or diamond flexible whip
[08:20] <MrScienceMan> copper
[08:20] <Darkside> as they will bend when they hit the ground, but they won't break
[08:20] <MrScienceMan> it will bend
[08:20] <Darkside> these spring back
[08:20] <Darkside> and they aren't as long
[08:20] <MrScienceMan> https://lh3.googleusercontent.com/-lyKagjnCa74/UBl7OaFEQkI/AAAAAAAABgQ/TdnAMZPTBH8/s640/TINY.png
[08:21] <Darkside> that'll possibly break off on landing
[08:21] <Darkside> i'd strongly suggest against using that kind of configuration
[08:21] <Darkside> lemme get a pic of what we do..
[08:21] <Darkside> note: i have flown somethin gvery similar to that before
[08:22] <MrScienceMan> this bend very easily
[08:22] <costyn> Darkside: antenna is always gonna get messed up isnt it, if it's hanging below the payload?
[08:22] <Darkside> costyn: depends on your antenna
[08:22] Nick change: UpuWork- -> UpuWork
[08:22] <costyn> MrScienceMan: nice, that protoshield looks very neat, have a bigger pic?
[08:23] <MrScienceMan> costyn: no
[08:23] <Darkside> http://projecthorus.org/wp-content/uploads/2012/04/pMNZN.jpg
[08:23] <Darkside> ok you can kind of see it in that pic
[08:23] <Darkside> its the leftmost payload
[08:23] <MrScienceMan> haha
[08:23] <MrScienceMan> drying up those payloads
[08:23] <MrScienceMan> i see
[08:23] <UpuWork> I was about to say that one excessive antenna then I realised its where you dry your clothes
[08:23] <MrScienceMan> :D
[08:23] <costyn> hehe
[08:24] <Darkside> thats using a comet SMA-24 antenna
[08:24] <Darkside> those antennas bend a LOT
[08:24] <Darkside> they are made out of springy material
[08:24] <MrScienceMan> mine bends alot, just doesnt spring back :)
[08:24] <Darkside> the ground plane is quite small, but it still works very well
[08:24] <Darkside> we've flown this particular configuration about 8 times now
[08:25] <Darkside> same payload
[08:25] <Darkside> we finally killed it on the most recent flight, whre it landed in a tree, and we had to pull it through the tree
[08:25] <Darkside> which ripped out the ground plane
[08:25] <Darkside> but other than that, it's fine
[08:26] <MrScienceMan> to be completely honest my biggest concern is the mountains
[08:26] <MrScienceMan> extremely easy to lose, although i have hope it will land on a tall tree
[08:26] <Darkside> mm
[08:26] <MrScienceMan> where we will be able to find it, but not get it
[08:26] <fsphil> you don't hear that very often
[08:27] <Darkside> MrScienceMan: you've seen this, right? http://rfhead.net/wp-content/uploads/2012/05/aprs_payloads.jpg
[08:27] <costyn> MrScienceMan: where are you located?
[08:27] <fsphil> the last one I recovered landed on a tree on a mountain, we where able to track it all the way down, and even after landing
[08:27] <MrScienceMan> Darkside: no, looks neat
[08:28] <MrScienceMan> both of them :)
[08:28] <Darkside> MrScienceMan: those are our aprs payloads
[08:28] <Darkside> Micronut APRS edition
[08:28] <MrScienceMan> fsphil: pros and cons of trees for habbing :P
[08:29] <Darkside> MrScienceMan: so yeah, we get about 20 hours of battery life our of that payload, transmitting every 30 seconds
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[08:29] <MrScienceMan> excellent
[08:31] <MrScienceMan> costyn: http://goo.gl/maps/TKci0
[08:31] <costyn> MrScienceMan: ah ok )
[08:31] <costyn> :)
[08:32] <costyn> Darkside: those aprs trackers are really cool :)
[08:32] <Darkside> costyn: part of the micronut line :-)
[08:32] <costyn> the little red board is powersupply?
[08:33] <Darkside> yeah, thats a bit of a hack
[08:33] <Darkside> the HX1 module needs a regulated 5v supply, so we use a boost converter
[08:33] <costyn> ok
[08:34] <Darkside> its a sparkfun LiPower board
[08:35] <costyn> was there advantage to buying this off the shelf to making your own? small size?
[08:36] <Darkside> i did end up making my own :P
[08:37] <Darkside> we just haven't needed to use one yet
[08:37] <Darkside> also the boost converter chip is a bit of a pain to solder
[08:37] <fsphil> oven ftw
[08:37] <Darkside> though that isn't really an excuse, i have access to the gear i nee dto solder it
[08:37] <Darkside> nah
[08:37] <Darkside> i can do most of it by hand with a wide-tip soldering iron and flux
[08:37] <Darkside> though i usually go over it with a hot-air gun afterwards
[08:39] <costyn> anyways, lipower board looks nice, sure I'll use it someday on some project
[08:39] <Darkside> yeah
[08:41] <costyn> speaking of power, for a non-HAB related project: i'd like to replace the standard 4AA's Im using in a sumo-bot with a rechargeable NiMH pack (from RC) or LiPo. But to get similar performance, it seems I need quite a beefy NiMH. 4 AA's output something like 2400-2600 mAh correct?
[08:41] <Darkside> depends on the AAS, but yeah
[08:42] <Darkside> an energizer lithium has 3Ah capacity
[08:42] <costyn> Or I guess I could use less mAh and have to recharge more often
[08:42] <costyn> Darkside: yea those Lithiums have amazing power for their size
[08:43] <Darkside> and weight :-)
[08:43] <costyn> yea
[08:43] <Darkside> ok time to head home from uni..
[08:43] <Darkside> getting late
[08:43] <costyn> cya
[08:43] <Darkside> bbl
[08:43] <Gadget-Mac_> Darkside: Nice modules
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[08:59] <nosebleedkt> can someone explain that to me
[08:59] <nosebleedkt> http://imagebin.org/223127
[08:59] <nosebleedkt> at 20km
[08:59] <nosebleedkt> the balloon can float?
[08:59] <nosebleedkt> i thought only at very high altitudes
[08:59] <nosebleedkt> it will float
[09:01] <MrScienceMan> A place to slap up your images
[09:01] <MrScienceMan> awwwww yeah
[09:01] <costyn> nosebleedkt: weird... usually it will float near it's final altitude, not halfway
[09:01] <nosebleedkt> yea
[09:01] <costyn> nosebleedkt: at least, I've never seen that happen and can't think of any reason
[09:02] <nosebleedkt> thats why im curious
[09:02] <eroomde> nosebleedkt: how was that data collected?
[09:02] <MrScienceMan> time error?
[09:02] <costyn> sure it's not an error in yhour data? why are there so many samples missing?
[09:02] <eroomde> ahem
[09:03] <eroomde> i think, nosebleed
[09:03] <eroomde> that you software thinks there are 100 minutes in an hour
[09:03] <costyn> hehehehe
[09:03] <nosebleedkt> yes
[09:03] <costyn> yea cause it happens evertime before the whole hour
[09:03] <nosebleedkt> its just a time range is the graph
[09:04] <eroomde> if you delete the minutes in the hour from 60-99, the graph would look fine
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[09:04] <nosebleedkt> yes i go from 1050 to 1100
[09:04] <nosebleedkt> yes i go from 1059 to 1100
[09:04] <costyn> :)
[09:05] <nosebleedkt> how to do the thing in the plot!
[09:05] <nosebleedkt> i use gnuplot
[09:05] <costyn> nosebleedkt: http://linuxgazette.net/126/peterson.html
[09:05] <costyn> might help
[09:06] <costyn> just search google for 'plotting against time' gnuplot
[09:07] <Darkside> oh cool, theres a short article on project horus in popular science
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[09:21] <nosebleedkt> I also found a bad timing issue
[09:21] <nosebleedkt> 0959
[09:21] Last message repeated 1 time(s).
[09:21] <nosebleedkt> 1000
[09:21] Last message repeated 1 time(s).
[09:21] <nosebleedkt> 0958
[09:21] <nosebleedkt> 0959
[09:21] Last message repeated 4 time(s).
[09:21] <nosebleedkt> 1000
[09:21] Last message repeated 1 time(s).
[09:21] <nosebleedkt> clock shows 0959
[09:21] <nosebleedkt> then 1000
[09:21] <nosebleedkt> then again 0958
[09:21] <nosebleedkt> time went back during the flight?
[09:22] <nosebleedkt> passed through a wormwhole ?
[09:22] <eroomde> it's sweet how you reach for physics explanations for things that are obviously software bugs
[09:23] <nosebleedkt> how can that be a bug in software?
[09:23] <daveake> how can it not?
[09:23] <costyn> hehehehe :)
[09:23] <nosebleedkt> ok so i guess i found a new bug
[09:23] <costyn> maybe your clock is fast, then it gets reset by the GPS clock when it jumps back?
[09:24] <jsowman> my bet's on wormhole
[09:24] <nosebleedkt> clock comes from ublox
[09:25] <eroomde> wormhole would be the most likely thing
[09:25] <costyn> jsowman: "other things being equal, a more fun explanation is better than a more complex one."
[09:25] <MrScienceMan> jsowman: i like that version of the story
[09:25] <jsowman> costyn: exactly
[09:26] <costyn> occam's corollary on fun
[09:26] <MrScienceMan> the balloon travelle to a parallel reality where the clocks are 1min back then came back to our
[09:27] <MrScienceMan> http://www.csicon.org/wp-content/uploads/2012/02/Aliens-meme.jpg
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[09:28] <costyn> MrScienceMan: haha :)
[09:28] <fsphil> Londo after a really bad party
[09:31] <daveake> http://www.yourfunnystuff.com/wp-content/uploads/2012/05/Time-Travel.jpg
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[09:33] <nosebleedkt> lol
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[09:36] <upix> good day
[09:38] <kokey> the clock gets moved by the spirits of deceased relatives
[09:39] <nosebleedkt> ok now better
[09:39] <nosebleedkt> http://imagebin.org/223133
[09:40] <costyn> nosebleedkt: speed in km/h?
[09:40] <nosebleedkt> m/s
[09:40] <costyn> ah yea
[09:40] <costyn> fast!
[09:40] <nosebleedkt> yea
[09:40] <costyn> waait... 100m/s is a little too fast :)
[09:40] <nosebleedkt> after burst it run at 358km/h
[09:41] <costyn> i suspect it's an outlier rather than a real datapoint
[09:41] <costyn> i mean... 360km/h is really really fast
[09:41] <upix> just divide delta heigh from delta time
[09:42] <nosebleedkt> im sure some mistakes have been done in gps data parsing
[09:42] <eroomde> no that's quite plausible costyn
[09:42] <eroomde> as a velocity after burst
[09:42] <upix> 100m/s can be reached in about 10 seconds
[09:43] <upix> or am i doing math wrong
[09:43] <costyn> eroomde: I stand corrected :)
[09:43] <eroomde> our parachute test vehicle reached >760kmh
[09:43] <costyn> upix: did you take into account air density?
[09:43] <upix> costyn: that's 1% air density
[09:43] <upix> so no
[09:43] <costyn> ok
[09:44] <costyn> just gravty then :)
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[09:45] <upix> when is that guy going to do supersonic jump?
[09:45] <upix> i think he already did some prep jumps
[09:45] <costyn> yea did some prep jumps already but afaik not the final jump. Guy's name is Felix Baumgartner
[09:47] <costyn> unfortunately for him he waon't be getting the longest freefall time record ; guy in a wingsuit holds that at the moment
[09:48] <upix> if some1 dug a tunnel through earth's center they could easily do longest freefall back and forth
[09:48] <upix> that'd be fun
[09:48] <costyn> or terrifying
[09:49] <upix> a swing of thousands of kilometers
[09:49] <costyn> 46 minutes of freefall
[09:49] <costyn> sorry 42.2
[09:49] <upix> you'd need a backpack of food
[09:49] <costyn> upix: it would be a vacuum right? Otherwise you're gonna get stuck down the gravity well
[09:50] <MrScienceMan> upix: didnt somebody calculate
[09:50] <MrScienceMan> that if you make a straight tunnel through the earths core
[09:51] <costyn> MrScienceMan: http://en.wikipedia.org/wiki/Gravity_train
[09:51] <MrScienceMan> and jump, accelerate to the core and then decelerate equally
[09:51] <upix> MrScienceMan: yup
[09:51] <upix> that's why it would be a cool swing
[09:51] <upix> bcuz just as you reach the other side of the earth you start falling again
[09:52] <kokey> yeah though you'd shoot short each time and end up in the core in the end?
[09:52] <costyn> fastests speed attained would be 28440 km/h wow
[09:52] <costyn> kokey: if there's friction from air yes
[09:53] <upix> kokey: in reality yeas
[09:53] <upix> but in imagination you remove friction
[09:53] <costyn> well read the wikipedia article I posted, it has all the details :)
[09:53] <upix> and stuff like gravity unequapotentiality
[09:55] <eroomde> £10 says that's definitely not a word
[09:55] <kokey> yeah I guess you need imagination for having the tunnel in the first place
[09:56] <costyn> google says No results found for unequapotentiality
[09:57] <costyn> upix: so you're the first person on the internet to have used that word
[09:57] <kokey> yes there is, wait 15 minutes and check on wiktionary
[09:57] <costyn> hahahaha
[09:57] <kokey> best is to add it on urban dictionary first
[09:57] <upix> well I'm not sure how you say it in english (it's not my native)
[09:58] <upix> but you have eqipotential surfaces
[09:58] <upix> and so when a field on a sphere is not eqipotential you could call it uneqipotential or w/e
[09:59] <kokey> equipotentiality
[09:59] <kokey> ....
[09:59] <upix> thanks
[09:59] <kokey> I guess we can't do unicode here
[09:59] <eroomde> B
[10:00] <upix>  /ask
[10:00] <costyn> kokey: depends on your irc client
[10:01] <daveake> uop Ýp1sdn ƒu1puPl pPolŽPd Žo
[10:01] <daveake> seems to work :)
[10:01] <costyn> daveake: nice :)
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[10:06] <upix> so anyway I got a BNC socket with holes just like UHF one, bought some 1.5mm monolithic cable and am planning to make my first antenna. so the main part should be quarter wave and ground spikes a bit longer (like 5%) am I right? And do I need to strip the isolation from wire or leave it be?
[10:07] <Darkside> does't matter about the insulaton
[10:07] <Darkside> may as well leave it be
[10:07] <Darkside> ground plane doesn't really ned to be much longer than the main element
[10:08] <Darkside> as long as they are the same length or longer its all good
[10:08] <gonzo_> the ground plane is not critical. A min of 1/4wave is a good start
[10:09] <upix> what about the main wire
[10:09] <upix> is it exactly quarter
[10:09] <upix> or a bit more
[10:09] <upix> I've read something about different C in metal
[10:09] <Darkside> 0.235 * wavelength in free space
[10:09] <Darkside> or, 1/4 wave minus a bit
[10:10] <gonzo_> if you want to keep weight down,you could solder the coax directly to the TX module and strip the other end back to expose the inner core and use that as the antenna element. Then solder some hookup wire to the braid to make the ground planes
[10:10] <Darkside> if you get roughly around tht point you should be OK
[10:10] <upix> Darkside: how much is roughly? +/-1mm?
[10:10] <gonzo_> I use 95% as an antenna lengtgh, as the C in metal is a bit facster than air
[10:11] <Darkside> upix: +- a few mm
[10:11] <upix> righty then
[10:11] <Darkside> gonzo_: that works out to about 0.235 lambda :P
[10:11] <daveake> I just used an online calculator that does the "C in copper" bit
[10:11] <gonzo_> ah, yes
[10:12] <gonzo_> didn't fully read yoru comment as VNC is a bit lumpy here
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[10:18] <gonzo_> ah, my BOC account has been activated
[10:19] <daveake> How many weeks did it take?
[10:19] <gonzo_> days
[10:19] <daveake> Quicker than mine then
[10:19] <nick_> Who was it that launched a geiger counter on a launch?
[10:20] <gonzo_> yep, it was less than 2 days
[10:20] <fsphil> odd, they setup my account and it was working all at the local supplier before I left
[10:21] <gonzo_> had to fill in form and fax it to head office
[10:21] <daveake> That's what I did, but the confirmation from BOC took 4 weeks to come through
[10:22] <gonzo_> so all is go again for a latex launch. probably late sept now for me
[10:22] <gonzo_> have to get the notam application in and chase it this time
[10:22] <fsphil> same for me at this rate
[10:22] <fsphil> I bet you get it before me
[10:23] <fsphil> time for a reminder email
[10:24] <fsphil> they really need a new system for this
[10:25] <fsphil> some way to quickly renew an old expired notam/permission
[10:26] <cuddykid> getting a new aerial today - friend of mine giving me some of his old HAM stuff :D
[10:26] <cuddykid> one of those big verticals
[10:27] <gonzo_> be prepared to do some clean up/repair if it's been in the air for any appreciable time
[10:27] <cuddykid> yeah, I don't think it's in great conditin
[10:27] <cuddykid> just need a cheap radio now to create a permanent base station
[10:38] <griffonbot> Received email: Dave B "[UKHAS] EMF Event."
[10:38] <upix> any clever tricks to straighten wires?
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[10:40] <jsowman> attach large weight, hang for several weeks
[10:40] <jsowman> oh you said clever... never mind
[10:40] <eroomde> that's what you do with steak too
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[10:42] <jsowman> steak doesn't work as well as a groundplane though
[10:42] <nick_> jsowman: did you fly the geiger tube?
[10:42] <jsowman> yeah, two
[10:42] <jsowman> as part of http://apexhab.org
[10:42] <nick_> Did they perform the same after returning to low altitude?
[10:42] <jsowman> yes
[10:42] <jsowman> they flew twice
[10:43] <nick_> And they kept working long term?
[10:44] <nick_> The IRD counts is the geiger counter?
[10:47] <nosebleedkt> i found an object in one of my photos
[10:48] <nosebleedkt> LOL
[10:49] <nosebleedkt> same object in another pic
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[10:49] <fsphil> the earth?
[10:50] <nosebleedkt> it appears in many high altitude pics
[10:51] <fsphil> the moon?
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[10:51] <nosebleedkt> its blue
[10:51] <nosebleedkt> lol
[10:53] <nosebleedkt> http://imagebin.org/223138
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[10:55] <eroomde> that's one for the grandchildren, nosebleedkt
[10:55] <nosebleedkt> lol
[10:56] <Darkside> http://1.bp.blogspot.com/-WzUydKmSeR4/T20VPfqG0MI/AAAAAAAABEc/iE3LH82oNgA/s1600/tumblr_lvfyv0p7Bq1qehntzo1_500.jpg
[10:56] <nosebleedkt> hahahahahahaha
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[10:58] <nick__> jonsowman: do you know what the long term preformance of the tube was like?
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[10:59] <hitman> hi guys , im working on intervelometer script for my camera . is it possible to take a set number of pictures followed by video for "x" minutes?
[10:59] <gonzo_> would expect that (gas GM tubes) it's the quality of the gas seal that will determine it's HAB life
[11:00] <cuddykid> hitman: yup
[11:01] <hitman> cheers
[11:01] <cuddykid> hitman: you need a modified version of CHDK though (assuming it's a Canon)
[11:01] <hitman> its a conon a800
[11:01] <cuddykid> I did something like 20 mins of photos then a 10sec vid - worked quite well
[11:01] <hitman> canon , im using the latest version from the chdk website
[11:02] <hitman> hw did u go about the coding , currently i hv a intervelometer working
[11:02] <cuddykid> hitman: not sure whether that CHDK version supports switching between stills and vid
[11:02] <cuddykid> I'll try and find the library I used, one sec
[11:02] <hitman> which version should i use then?
[11:03] <cuddykid> hitman: use this -> http://www.zenoshrdlu.com/kapstuff/zchdk.html
[11:03] <cuddykid> ah, A800 doesn't look like it's supported :(
[11:04] <hitman> ok, which camera do u use?
[11:04] <cuddykid> A570
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[11:21] <griffonbot> Received email: Jonty Wareing "Re: [UKHAS] EMF Event."
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[11:55] <nosebleedkt> can someone explain to me why i got that time issue?
[11:55] <Darkside> because there are 60 minutes in an hour, not 100?
[11:55] <nosebleedkt> its the gps that sent it, not me that had a bug in code.
[11:55] <nosebleedkt> no Darkside
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[11:56] <nosebleedkt> this one: http://imagebin.org/223143
[11:56] <nosebleedkt> time
[11:56] <nosebleedkt> 09:58
[11:56] <nosebleedkt> blabla
[11:56] <nosebleedkt> 10:00
[11:56] <nosebleedkt> then again 09:58
[11:57] <nosebleedkt> 09:59
[11:57] <nosebleedkt> 10:00
[11:58] <nick__> jonsowman: I was wondering if the problem was a gas leak out of the geiger tubes, but since they seem to work the same afterwards that might not be the case.
[11:59] <jsowman> yeah we wondered that
[11:59] <jsowman> they recover though
[12:00] <nick__> Do you know what gas mix was in your tubes?
[12:00] <griffonbot> Received email: MikeB "Re: [UKHAS] EMF Event."
[12:00] <jsowman> nick__: no idea, sorry
[12:01] <nick__> Was it ~500V?
[12:02] <nosebleedkt> well i have some explanation for the time change
[12:02] <jsowman> nick__: yeah about that
[12:02] <jsowman> maybe 600
[12:02] <costyn_> nosebleedkt: what is your explanation?
[12:03] <nosebleedkt> costyn_, when you move place times changes
[12:03] <costyn_> nosebleedkt: relativistic effects? ;)
[12:03] <daveake> fastest HAB ever
[12:04] <nosebleedkt> lol
[12:04] <nosebleedkt> i mean
[12:04] <nosebleedkt> the gps are very accurate
[12:04] <nosebleedkt> considering time
[12:04] <nosebleedkt> and a little change ( about 50km ) to the east
[12:04] <nosebleedkt> could make them go back and forth 1 minute
[12:05] <nosebleedkt> is that possible ?
[12:05] <daveake> no
[12:05] <nosebleedkt> lol
[12:05] <daveake> They send out standard GPS time
[12:05] <fsphil> which is slightly different from UTC
[12:05] <jsowman> also you can't have fractional timezones
[12:05] <daveake> Do you think it's a coincidence that it went back when it reached a whole hour?
[12:06] <nosebleedkt> it does it only there
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[12:06] <nosebleedkt> it reached other whole hours too
[12:06] <costyn_> nosebleedkt: without going backwards?
[12:06] <nosebleedkt> but nothing strange happened
[12:06] <nosebleedkt> yes costyn_
[12:07] Nick change: costyn_ -> costyn
[12:07] <nick__> I wonder if it was a temperature effect consensing the halogen (possibly chlorine)
[12:07] <jsowman> nick__: if you look at the graphs it seems more correlated to pressure than temp
[12:07] <costyn> nosebleedkt: i have no idea, do you have your code posted online?
[12:08] <nick__> How so?
[12:08] <nosebleedkt> eee i dont think
[12:08] <nosebleedkt> but i can post when go home
[12:11] <nick__> It looks like the pressure sensor hit it's threshold before they died, so it's hard to tell, but the pressure seems to have been falling very slowly where they died.
[12:12] <jsowman> yeah
[12:12] <jsowman> could be
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[12:15] <nick__> Have you tried putting them in an environmental chamber?
[12:15] <griffonbot> Received email: Adam Cudworth "[UKHAS] Launch Announcement (11th August)"
[12:16] <jsowman> nick__: nope
[12:17] <cuddykid> the launch I've just posted about is helping Josh out with tracking his "art project"
[12:23] <Gadget-Mac_> cuddykid: Oh, thats cool. Being in the midlands myself good first change to try the AR8000 out that arrived this week
[12:23] <cuddykid> Gadget-Mac_: brilliant! :)
[12:23] <Gadget-Mac_> Need to get fldigi running somewhere
[12:24] <cuddykid> hopefully the weather will play ball.. just for a day :P
[12:24] <Gadget-Mac_> any details on the new habe pcb ? (sorry n00b question)
[12:30] <eroomde> cuddykid: i hope you're charging him for it
[12:30] <eroomde> ask him for a cut of the profits from his exclusive guide on how to do hab
[12:32] <eroomde> see if you too can get a degree from the university of cock
[12:33] <cuddykid> Gadget-Mac_: 5x5cm footprint and has ntx2, ublox GPS, temp sensor, microSD logger and pinouts to other bits :)
[12:33] <cuddykid> eroomde: lol
[12:33] <Gadget-Mac_> cuddykid: Nice
[12:34] <cuddykid> eroomde: I'm going to try and get the left over helium - somehow he's managed to blag a ridiculously large helium cylinder for free and we're only using 1000G
[12:34] <cuddykid> should be enough gas for another 2 launches
[12:34] <Gadget-Mac_> Always nice to see what others are doing :)
[12:34] <Darkside> cuddykid: what is ridiculously large in m^3
[12:34] <cuddykid> over 9
[12:35] <Darkside> you're goign to have trouble transporting that
[12:35] <daveake> cuddykid That thing weighs more than you do!
[12:35] <Darkside> 3.6 is hard enough
[12:35] <cuddykid> yep!
[12:35] <cuddykid> over 70Kg :S
[12:35] <cuddykid> crazy
[12:36] <Gadget-Mac_> Yikes
[12:37] <cuddykid> yeah, it's the L size -> http://www.boconline.co.uk/products/products_by_type/balloon_gas_equipment/balloon_gas.asp
[12:38] <eroomde> you can get 9m^3 bottles in the back of an estate car fine
[12:38] <eroomde> you can get 3 infact
[12:38] <eroomde> those are the bottles cusf use for everything
[12:40] <Darkside> wow ok
[12:40] <Darkside> we had BOC get shitty at us for putting bottles in the back of a car
[12:41] <Darkside> ended up making a wooden box for them to go in the back of the Hilux, so they could be tied down properly
[12:41] <daveake> You're *supposed* to have them in free air in case they leak
[12:41] <daveake> I did consider a pickup truck but decided it was too redneck :)
[12:41] <fsphil> lol
[12:42] <fsphil> I can't put a trailer on my car, the tank has to go in the boot
[12:42] <gonzo_> I used to collect 47kg propane bottles, could get three in the boot. But that was with the tailgate open
[12:42] <costyn> daveake: ehehehe
[12:42] <gonzo_> Pickup, that would be 8th stage of HAB?
[12:42] <Darkside> nah
[12:42] <daveake> :)
[12:42] <Darkside> landcruiser
[12:43] <fsphil> that's #5 I think, wasn't #6 the boat?
[12:43] <costyn> yep
[12:43] <eroomde> yes we did have a hilux we could borrow which could shift 3 bottles, the parachute test vehicle, and all the ground support stuff in one trip
[12:43] <eroomde> that was majorly useful
[12:43] <gonzo_> The old range rovers used to have a hinged carrier for the number plate. So that you could swing the plate and illumination lamps down when you drove with the tailgate open
[12:43] <gonzo_> sensible
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[12:44] <costyn> clever
[12:45] <gonzo_> and a dozen african 'gentelemen' with AK47's if it's a hilux!
[12:45] <Gadget-Mac_> Need to find me a decent rx antenna in a week then
[12:46] <gonzo_> what for? 70cm?
[12:47] <Gadget-Mac_> Yup.
[12:47] <Gadget-Mac_> AR8000 came with one of these http://cpc.farnell.com/watson/w-881/w-881-super-gainer-antenna/dp/IT44459
[12:50] <gonzo_> think that is j7ust a piece of wire tbh
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[12:52] <gonzo_> a wl/4 or even a wl3/4 bit of wire in a connector would be better
[12:54] <craag> A little dipole tends to work pretty well as a quick antenna.
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[12:55] <craag> The key thing is getting it as close as possible to line-of-sight though.
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[13:07] <gonzo_> for the car or house?
[13:10] <craag> Ah, I'm thinking house.
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[13:12] <gonzo_> dipole or GP is quick to mak and deploy. For installed use, a short colinear on the roof is a good bet
[13:13] <gonzo_> for the car, a magmount colinear or even a 1/4 or 3/4 wave ant
[13:14] <gonzo_> (if you are brave, then get a bolt through mount and drill holes in the car.
[13:16] <craag> I made this dipole when I got my rtl-sdr: http://goo.gl/R2tZ2
[13:17] <craag> Now I use a ribbon-feeder slim-jim. But colinear is planned to be up in early September!
[13:23] <radim_OM2AMR> has somebody detailed picture of his balloon antenna ? I'm planning to build two antennas for HX1 and NTX2
[13:24] <UpuWork> you need a diplexor
[13:24] <UpuWork> want to buy one ?
[13:24] <radim_OM2AMR> I tried common groundplane for 144.8 MHz and two l/4 wires
[13:24] <UpuWork> Darkside can I sell him a diplexor ?
[13:24] <radim_OM2AMR> hmm, diplexor will insert some loss to rf path
[13:25] <UpuWork> http://www.projectswift.co.uk/2012/04/20/diplexor/
[13:25] <Darkside> radim_OM2AMR: <1dB
[13:25] <radim_OM2AMR> Darkside, Upu, nice one
[13:25] <Darkside> UpuWork: yes, though they haven't been flight tested yet.
[13:25] <Darkside> well
[13:26] <Darkside> i have flown one with just the 70cm side of it
[13:26] <UpuWork> no I was going to suggest you can have it for the postage
[13:26] <Darkside> haven't flown 2 payloads on one
[13:26] <UpuWork> we have spare PCB's
[13:26] <UpuWork> you can't have the SMA's though
[13:26] <Darkside> radim_OM2AMR: the idea behind that pcb is the centre SMA socket acts as a mount for a Comet SMA-24 dual-band whip, or something else similar
[13:27] <Darkside> and on the bottom of the pcb are areas of exposed soldermask where you can solder ground plane radials to
[13:27] <radim_OM2AMR> I see, nice, really
[13:27] <UpuWork> anyway afk soldering offers there beep me later
[13:27] <Darkside> you embed the pcb in your payload box, and run coax up to your payloads
[13:27] <Darkside> a diplexer *made* for HABbing
[13:28] <radim_OM2AMR> but as I see the callsigns, I thing postage will be expensive ;-)
[13:28] <Darkside> it'll be cpoming from the UK
[13:28] <Darkside> not australia
[13:28] <radim_OM2AMR> oh, yesss, I was afraid ;-)
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[13:29] <radim_OM2AMR> I'm planning to use 300 mW for 144.8 and same power for 434.650 MHz here in Slovakia
[13:30] <Darkside> not 300mW for the UHF side
[13:30] <Darkside> no point when you're broadcasting RTTY
[13:30] <Darkside> just use the NTX2's output power, 25mW
[13:30] <kokey> radim_OM2AMR: where in Slovakia are you?
[13:31] <radim_OM2AMR> hmm, I have just 10 mW NTX
[13:31] <Darkside> radim_OM2AMR: thats fine too
[13:31] <radim_OM2AMR> kokey, you can check spacenear.us/trascker ;-) You can find there my position
[13:33] <UpuWork> cost about £3 to get it to Slovakia
[13:35] <radim_OM2AMR> Darkside, will be 10 mW with diplexer and simple GP ant enough ? I'll use just dualband magnetic antenna on my car (<5 dB I think)
[13:35] <kokey> radim_OM2AMR: that's proper out of the way where you are
[13:35] <Darkside> radim_OM2AMR: if you can get the 25mW NTX2's i'd use them
[13:35] <gonzo_> craag, the ribbon slim jims work suprisingly well. I have one up for 4mtrs inside a fibreglass fishing poll
[13:35] <radim_OM2AMR> Upu, great price, I was trying to open your webshop url, but there are some problems with bw :-(
[13:36] <kokey> I've taken a train from bratislava up to zilina before, and driven from bratislava towards czech republic too, but I haven't been up those hills
[13:37] <radim_OM2AMR> kokey: I'm'@work in Bratislava ;-)
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[13:40] <radim_OM2AMR> Upu, thank you for the proposal, I will order it from you ;-) It's just PCB or are there L and C ?
[13:41] <craag> gonzo_: I use a 10m fibreglass pole with mine :) http://goo.gl/QRxkp I also have one for 144MHz.
[13:41] <Darkside> radim_OM2AMR: you need 0805 SMD components to go on it
[13:41] <Darkside> we can give you farnell part numbers
[13:42] <radim_OM2AMR> I have some 0805 SMD capacitors, so it's no problem
[13:43] <Darkside> you need specific values
[13:43] <Darkside> you can see them on the pcb actually
[13:43] <Darkside> 18pf, 2.7pf, and 4.7pf
[13:43] <Darkside> and you ned 15nH, 68nH and 100nH inductors
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[13:44] <Darkside> caps should be NP0, inductors, highest Q you can get i guess
[13:45] <UpuWork> radim_OM2AMR I'll make it up for you I have spare comps
[13:45] <UpuWork> just PM me your postal address
[13:45] <radim_OM2AMR> Upu, great !
[13:45] <UpuWork> not today though
[13:45] <UpuWork> bored of soldering today
[13:45] <radim_OM2AMR> :-)
[13:46] <UpuWork> I have dents in my fingers where the tweezers have been
[13:46] <eroomde> i have dents in my neocortex where the solder fumes have been
[13:46] <Darkside> radim_OM2AMR: disclaimer
[13:46] <Darkside> the board has been tested on a network analyzer
[13:47] <Darkside> and its response/isolation is fine
[13:47] <Darkside> we have *not* flown the diplexer yet
[13:47] <Darkside> it is unikely, but possible that the response of the diplexer will change with temperature
[13:48] <Darkside> with the components we're using (NP0) that is even less likely
[13:48] <Darkside> but just bear in mind it hasn't been tested
[13:50] <radim_OM2AMR> I will test/measure it in the lab with my friend
[13:50] <Darkside> awesome
[13:51] <Darkside> dunk it in dry ice and see if the response changes
[13:51] <radim_OM2AMR> good advice, yes
[13:52] <Gadget-Mac_> craag: Nice pole :)
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[13:53] <Gadget-Mac_> Have you got a supplier ?
[13:54] <chrisstubbs> Hey guys, i have been using SDR# on my desktop and it works fine, but my laptop seems to be too slow to run it (dual core 2.2ghz AMD) Is there any way to optimise it or some lightweight SDR software that might work better?
[13:55] <Darkside> not sure
[13:55] <craag> chrisstubbs: Have you tried using a lower sample rate?
[13:56] <radim_OM2AMR> lower sample rate from dongle and lower audio sample rate also (8000 Hz)
[13:57] <chrisstubbs> ok will try that now
[13:57] <Darkside> well mainly lower dongle sample rate
[13:57] <Darkside> drop it to 1MHz
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[13:57] <radim_OM2AMR> what kind of SDR are you using ?
[13:57] <chrisstubbs> Nope thats still pretty bad, got dongle sample rate down to 0.25mbs
[13:58] <Darkside> err
[13:58] <chrisstubbs> using the EZCap form UPU
[13:58] <craag> What FFT depth have you got the waterfall on?
[13:58] <Darkside> it won't work that low
[13:58] <craag> Darkside: The newer builds do.
[13:58] <Darkside> the rtl dongles stop at 900KSPS
[13:58] <Darkside> oh really?
[13:58] <Darkside> i thought it was a hardware thing
[13:58] <craag> SO did I, but it works!
[13:59] <chrisstubbs> aWell ive just cheande it to 1.4 and its still very bad
[13:59] <radim_OM2AMR> chrisstubs - try 1 msps and 8000 hz audio sample rate.
[13:59] <nick__> Woot
[14:00] <nick__> Got some extruded scintillator with a hole through it and some wavelength shifting fibre :)
[14:00] <chrisstubbs> Still nothing at 1mbs :( Downloaded the new version of SDR# but it kept trying to connect to an IP, back to using the old version now. Is the new one any better?
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[14:03] <chrisstubbs> Hmm Disabling spectrum analyser helped!
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[14:05] <craag> Gadget-Mac_: Were you asking about where I got the pole?
[14:07] <eroomde> stanstead immigration control centre
[14:07] <costyn> aah... beer-o-clock
[14:07] <nigelvh> 7AM? Sure.
[14:07] Action: costyn is enjoying a delicious belgian Jupiler beer
[14:07] <costyn> friday 4PM = beer time here at the office
[14:08] <nigelvh> My old place of employment had a vodka cart that rolled around on friday afternoons.
[14:09] <nigelvh> Then there ended up being "Issues" one day that HR didn't like and made us switch to beer.
[14:09] <eroomde> vodka is a pretty vicious way to start a friday evening before you've even got home :)
[14:10] <nigelvh> It was a game development studio. It was those kind of people.
[14:10] <eroomde> no home huh
[14:10] <eroomde> our landlords have just been bought by a bug american firm
[14:11] <nigelvh> Also the office had a big pile of taxi vouchers...
[14:11] <eroomde> their head of environmental complaince came over
[14:11] <eroomde> it's was like a bad dream
[14:11] <eroomde> 'a whole lotta things are gonna hafta change round here'
[14:12] <nigelvh> Yep. Us americans. We're the worst.
[14:12] <nigelvh> :P
[14:12] <eroomde> when companies get big enough that they can hire people who don't actually have to do anything other than cover their own arses, it's time for them to break up, I think
[14:12] <nigelvh> Sounds reasonable to me.
[14:12] <eroomde> yeah, it's a shame she had an american accent
[14:12] <eroomde> just made it sound worse
[14:12] <eroomde> or rather, more conforming to the (perhaps unfair) stereotype
[14:13] <nigelvh> Happens all too often.
[14:13] <nigelvh> Anyway, off to work for me! Woo...?
[14:13] <eroomde> personaily free insincere corprate terminator-unit
[14:14] <eroomde> come with me if you want to comply with waste disposal policy
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[14:26] <griffonbot> Received email: "Re: [UKHAS] Launch Announcement (11th August)"
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[14:27] <gonzo_> for every person trying to do a job, there are a dozen who's job it is to stop them
[14:27] <eroomde> at big companies sure
[14:28] <eroomde> but having managed to escape that i was just getting used to some sanity
[14:28] <gonzo_> for small co's who can't afford the overhead of bloaty admin, the govenment and counsics step in to provide that service
[14:28] <Dan-K2VOL> afternoon all
[14:31] <UpuWork> afternoon Dan
[14:31] <Gadget-Mac_> craag: indeed.
[14:37] <craag> Gadget-Mac_: Bought it about a year ago from this guy: http://goo.gl/emW6O
[14:37] <craag> There might be cheaper now if you look around, he seems to have raised his prices.
[14:52] <Gadget-Mac_> <£25 on ebay by the looks
[14:59] <craag> Yeah I got mine for 23.
[15:01] <craag> They are useful, also for HF verticals. I have used mine for the centre of an inverted-vee a couple of times.
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[15:31] <Gadget-Mac_> I'd forgotten I'd not used the audio on this linux box.
[15:32] Action: Gadget-Mac_ does battle with PulseAudio
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[15:37] <nosebleed> yo
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[17:16] <domlin2> hey guys
[17:17] <domlin2> me and chrisstubbs got the sdr software to work flawlessly in the end :)
[17:17] <domlin2> the process priority was set to real time in the task manager, set this to normal and everything is good
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[17:19] <chrisstubbs> Hello
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[17:23] <Gadget-Mac> Yay, dl-fldigi working, just need to give it some input now I guess
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[18:00] Nick change: Matt_soton -> mattbrejza
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[18:01] <DrLuke> domlin2: is that on windows?
[18:01] <DrLuke> use linux, it's so much easier on there
[18:02] <domlin2> DrLuke: yeah its running on 7, we've spent the whole of today trying various different OS' on about 7 different laptops and only just found a useable one
[18:02] <DrLuke> well, I used ubuntu
[18:03] <DrLuke> you're using one of them dvb-t sticks, right?
[18:03] <DrLuke> the E4000 one
[18:03] <domlin2> yep an EZcap
[18:03] <DrLuke> yeah, I just used the automatic script that does everything for you
[18:03] <DrLuke> for ubuntu
[18:03] <domlin2> ah wow, ill try and find my ubuntu disk :P
[18:03] <DrLuke> let me send you the script
[18:04] <DrLuke> http://www.sbrac.org/files/build-gnuradio
[18:04] <DrLuke> just stuff it anywhere and run it
[18:04] <DrLuke> "build-gnuradio all"
[18:04] <DrLuke> it will even install git if you haven't got it already
[18:05] <domlin2> oo lovely thank you, looks very good.
[18:05] <domlin2> what are the interfaces like for the sdr?
[18:05] <DrLuke> it uses wxwidgets
[18:05] <DrLuke> but you could write your own interface in python
[18:05] <DrLuke> gnuradio is sweet as hell
[18:06] <domlin2> okay :) ill give it a go
[18:06] <domlin2> just trying trying to find an ubuntu iso :P
[18:06] <domlin2> got one saves somewhere
[18:07] <DrLuke> just redownload the newest :P
[18:07] <DrLuke> the unity Ui is a bit ass but eh
[18:07] <fsphil> you can change that
[18:09] <domlin2> shall i get 32 bit of 64 bit? laptop supports both obviously
[18:10] <domlin2> or*
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[18:17] <Dutch-Mill> Afternoon.. Any info from the Scouts/Buzz/Mondo-3 flight on the 5th?
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[18:20] <Upu> Hey Dutch-Mill
[18:20] <Upu> all recovered
[18:20] <Upu> Mondo had a premature envelope failure it seems
[18:21] <Upu> Dave has linked some nice video on his Blog from the other flights
[18:22] <jonsowman> Dutch-Mill: that's "Sunday - 5th Scouts Group" rather than "Sunday 5th - Scouts Group"
[18:22] <jonsowman> confusingly
[18:22] <DrLuke> domlin: 64-bit
[18:22] <DrLuke> domlin2 *
[18:26] <jonsowman> especially since this Sunday happens to be the 5th
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[18:32] <jonsowman> urgh freenode
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[18:35] <fsphil> could be worse
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[18:35] <jonsowman> lol
[18:36] <jonsowman> now we can talk about people behind their backs
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[19:13] <nosebleedkt> the amount of duct tape i added for shielding was 350g
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[19:19] <nosebleedkt> https://fbcdn-sphotos-e-a.akamaihd.net/hphotos-ak-ash3/s720x720/548894_500212703326112_168809776_n.jpg
[19:19] <nosebleedkt> i think its too much
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[19:26] <Lunar_Lander> hello
[19:26] <nigelvh> Howdy
[19:28] <Lunar_Lander> how are you?
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[19:29] <nigelvh> Doing well. Yourself?
[19:30] <Lunar_Lander> quite OK thanks
[19:30] <nigelvh> Good to hear. How's the payload coming?
[19:32] <Lunar_Lander> ah didn't work on that today, we rather discussed how to stack the payload and the batteries and so on
[19:33] <nigelvh> I see.
[19:33] <nigelvh> All important things.
[19:33] <Lunar_Lander> yea
[19:36] <Lunar_Lander> payload box with just the batteries is almost exactly 300 g
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[19:44] <nigelvh> Not too bad.
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[19:44] <nigelvh> That include duct tape and string?
[19:45] <nigelvh> I tend to try to keep my total systems (with tape, without string) under 500g
[19:46] <nigelvh> While the box is made of foam, it still adds up.
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[19:48] <Lunar_Lander> ah no, just the styrofoam box, a battery pack for the 808, the 6Ah lipoly and the 3 AA batteries for the flt system
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[19:48] <nigelvh> What's the 6Ah lipo for?
[19:48] <Lunar_Lander> nigelvh, yea
[19:48] <Lunar_Lander> the cutdown
[19:49] <nigelvh> You shouldn't need that much
[19:49] <nigelvh> Try with two 9V in series. That should save some weight and be plenty of power for the cut down.
[19:50] <Lunar_Lander> hm ok
[19:51] <daveake> 6Ah for a cutdown? Did I read that right?
[19:51] <Upu> or try 4 energizer AA's
[19:51] <nigelvh> 6Ah would run a tracker for days. You just need a few seconds of power for the cutdown.
[19:51] <Upu> I fired a cut down from 2 x AA
[19:52] <daveake> You just need 10 seconds of about 5 watts. Done.
[19:52] <daveake> Not 6 hours of it :)
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[19:54] <Lunar_Lander> yea
[19:54] <daveake> I thought we had this exact conversation sometime last year?
[19:55] <Lunar_Lander> not the exact same one
[19:55] <number10> well there is always next year too
[19:55] <daveake> great
[19:55] <nigelvh> Or perhaps dave was in a parallel universe talking to a parallel Lunar_Lander
[19:56] <nigelvh> I find that to be a much more interesting theory.
[19:56] <Lunar_Lander> xD
[19:56] <nigelvh> Or maybe THIS is the parallel universe!
[19:57] <number10> well sometimes I think it is a different planet
[19:57] <Upu> welcome to the real world..
[19:57] <fsphil> whoa
[19:57] <nigelvh> Stupid red pill!
[19:58] <Upu> Lunar are you not going to do a more simple launch just to check your tracker works before you throw cut downs and Gieger counters up there ?
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[20:00] <Lunar_Lander> yea but the cutdown was planned to be on flight 1 anyway
[20:00] <Lunar_Lander> not the geiger
[20:00] <nigelvh> Fly ALL the things!
[20:00] <Lunar_Lander> XD
[20:00] <daveake> cutdown <> simple
[20:00] <Upu> K.I.S.S
[20:00] <Upu> and I'm not coming on to you
[20:00] <nigelvh> Are you sure?
[20:00] <daveake> Last time I saw a cutdown on an early flight was SHARP
[20:00] <daveake> And you know how that went
[20:01] <nigelvh> Up?
[20:01] <Upu> I can link the video if you need a giggle
[20:01] <daveake> Not for long
[20:01] <nigelvh> But still up.
[20:01] <fsphil> lol
[20:01] <daveake> They used it in flight and .... it triggered
[20:01] <Upu> http://www.youtube.com/watch?v=Qig-LVW1yb4
[20:01] <daveake> Just not when they thought
[20:01] <daveake> And the test ^^^ is comedy gold
[20:01] <Upu> vertical video syndrome too
[20:03] <nigelvh> That was a good catch.
[20:03] <nigelvh> The ground's good for that.
[20:03] <nigelvh> The ground should play (american) football.
[20:04] <fsphil> it would provide better conversation than many footballers
[20:04] <Lunar_Lander> yeah
[20:04] <Lunar_Lander> why is the video so narrow?
[20:04] <fsphil> (american and european)
[20:04] <radim_OM2AMR> Lunar_Lander: other reason why not to use cut-off http://www.youtube.com/watch?v=SwYd7pojHYg
[20:04] <radim_OM2AMR> see 6:24
[20:04] <Upu> Lunar_Lander http://www.youtube.com/watch?v=Bt9zSfinwFA
[20:05] <natrium42> oh nice, wb8elk is launching today
[20:05] <Upu> Hey natrium42
[20:05] <fsphil> hehe, habhub predictor on TV again
[20:05] <Upu> Which TV ?
[20:06] <fsphil> if that .nl clip was on tv
[20:06] <Upu> I've see a pyro misfire on the ground
[20:06] <nigelvh> We never use a cutdown, then again we don't have an ocean to contend with.
[20:06] <Upu> can be good to shed the balloon
[20:06] <natrium42> hi Upu
[20:06] <Upu> but its a balance between overly complex and coming down with some latex
[20:07] <daveake> For the first time, no contest IMO. Go with the latex.
[20:07] <Upu> but yes natrium42 we are learning the Hwoyee balloons and how they respond
[20:07] <Upu> err
[20:08] <Upu> nigelvh
[20:08] <natrium42> :D
[20:08] <Upu> however they are so variable
[20:08] <nigelvh> err upu?
[20:08] <Upu> [21:06] <nigelvh> We never use a cutdown, then again we don't have an ocean to contend with.
[20:08] <nigelvh> Yeah.
[20:08] <Upu> we know if we don't want to float to the US
[20:08] <Upu> > 5.5m/s
[20:09] <Upu> even 5m/s is border line with the 1600g
[20:09] <nigelvh> Ah.
[20:09] <Lunar_Lander> Upu, XD!
[20:09] <Lunar_Lander> ROFL "Click this guy to subscribe"
[20:09] <Lunar_Lander> radim_OM2AMR, is that from Slovenia?
[20:09] <fsphil> I wouldn't go around clicking anyone
[20:09] <fsphil> they might not like it
[20:09] <nigelvh> Yeah, we don't have that issue, ours always pop
[20:09] <nigelvh> We have a pile of weight on them from the student projects.
[20:10] <Upu> tbh as daveake will back me up, when we fly something like a GoPro I put in the gas we calculate we need, and then some more. Then a bit more. And finally a little more for luck
[20:10] <daveake> yup
[20:10] <Upu> well Dave calculates we need
[20:10] <fsphil> and it still gets to stupid heights
[20:10] <Upu> he's better at it than I am
[20:10] <daveake> :)
[20:11] <radim_OM2AMR> Lunar_Lander, is it from Slovakia, but not our team :-) I was just as guest during the start.
[20:11] <daveake> I've had more practice :)
[20:11] <Lunar_Lander> radim_OM2AMR, ah
[20:11] <nigelvh> Really, would it be so terrible if they floated over here anyway? I'd be happy to go out to my backyard and retrieve it.
[20:11] <nigelvh> I'd even send you a QSL.
[20:11] <Lunar_Lander> sorry for that I still like keep Slovakia and Slovenia mixed up when I like see "slovenskom"
[20:12] <Upu> well nigelvh winds are 'a' changing
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[20:12] <Upu> but its something we (UK) consideredd
[20:12] <Upu> it is likely to end up in Canada though
[20:12] <daveake> Thought I should do a flight list before I start forgetting some - http://www.daveakerman.com/?page_id=511
[20:12] <nigelvh> Well, aim for washington, oregon, or idaho.
[20:12] <nigelvh> I could visit canada. I'm not too far from the border.
[20:12] <number10> can you also send the camera bacl with the QSL nigelvh
[20:13] <nigelvh> Nah, I'll keep the camera. You just get the QSL. Postage is expensive. :P
[20:13] <Upu> :)
[20:13] <number10> lol
[20:13] <Lunar_Lander> XD
[20:13] <Upu> 10 launches nice daveake
[20:13] <daveake> That's page 1
[20:13] <Upu> oh yes
[20:14] <daveake> lol
[20:14] <Upu> lol
[20:14] <Lunar_Lander> radim_OM2AMR, what does BIN mean?
[20:14] <daveake> Though one of them was a backup to #10's
[20:14] <fsphil> I've a notam coming up but no long-lasting payload
[20:14] <nigelvh> Binary?
[20:14] <Lunar_Lander> and damn, yesterday I missed the Ariane launch
[20:14] <Upu> I note the one that stuck in a tree locally is missing
[20:14] <daveake> Well
[20:14] <Lunar_Lander> nigelvh, in this context https://www.youtube.com/watch?v=SwYd7pojHYg
[20:14] <daveake> I know where it is :D
[20:14] <Upu> Lunar we are having a Mars party on here on Monday morning
[20:14] <Upu> come join us
[20:14] <daveake> Oh, the pico?
[20:15] <daveake> Yeah, not added the 2 pico flights
[20:15] <Lunar_Lander> Upu, yeah
[20:15] <Lunar_Lander> xD
[20:15] <radim_OM2AMR> BIN- Banovce (city) Information Newsletter ;-)
[20:15] <nigelvh> something something news.
[20:15] <fsphil> the best kind of news
[20:15] <nigelvh> Exactly
[20:15] <radim_OM2AMR> :-)
[20:16] <Lunar_Lander> ah
[20:16] <fsphil> "And in the sports news today, something somewhere bla bla blah."
[20:16] <Lunar_Lander> xD
[20:16] <nigelvh> Also, the mars landing is going to be awesome or terrible
[20:16] <Lunar_Lander> how do you like EUROSPORT?
[20:16] <nigelvh> I hope for awesome.
[20:16] <Lunar_Lander> me too!
[20:16] <Lunar_Lander> EUROSPORT is awesome
[20:16] <Lunar_Lander> I really like that they show Snooker
[20:16] <fsphil> incorrect. it has sport in the title
[20:16] <nigelvh> If only there was going to be HD video of it.
[20:16] <Lunar_Lander> xD
[20:16] <nigelvh> :(
[20:17] <fsphil> they really need to sort out the bandwidth to mars
[20:17] <nigelvh> Yeah
[20:17] <fsphil> a few dedicated communication satellites
[20:17] <Lunar_Lander> radim_OM2AMR, I now see that golden cylinder
[20:18] <Lunar_Lander> I think the one guy said "terminator"
[20:18] <daveake> They just don't bother with rural areas
[20:18] <Lunar_Lander> fsphil, yeah they cancelled that :(
[20:18] <Lunar_Lander> the Mars Telecommunications Orbiter
[20:19] <Lunar_Lander> radim_OM2AMR, yeah I see it
[20:19] <Lunar_Lander> terminator did what it was named for
[20:19] <Lunar_Lander> balloon gone without payload
[20:19] <nigelvh> I mean how cool would that be, streaming HD video of the lander either surviving or totally crashing.
[20:20] <Lunar_Lander> XD
[20:20] <radim_OM2AMR> Lunar_Lander yes, it has small wire ring, which was flushed up by ballon lift
[20:21] <radim_OM2AMR> ..and wind
[20:22] <Lunar_Lander> yea
[20:22] <Lunar_Lander> how does the terminator work then?
[20:22] <Upu> err comes back through time and kills John Connor
[20:22] <radim_OM2AMR> Lunar_Lander, they flown without it finaly
[20:22] <Lunar_Lander> ah
[20:22] <Lunar_Lander> Upu, xD
[20:23] <fsphil> they're unreliable though, keep getting stopped by the resistance
[20:23] <Lunar_Lander> the hot wire model?
[20:24] <fsphil> the T1000
[20:24] <Lunar_Lander> xD
[20:24] <Lunar_Lander> radim_OM2AMR, is there more about Julo2?
[20:24] <radim_OM2AMR> Lunar_Lander,that guys had mechanical cutoff with screw, nut and servo. Servo should put the screw out
[20:25] <Lunar_Lander> in the sidebar I see BIN videozona "Balon a sonda Julo2"
[20:25] <Lunar_Lander> https://www.youtube.com/watch?v=X7ptO4VjfWM&feature=relmfu
[20:25] <Lunar_Lander> radim_OM2AMR, ah ok
[20:31] <Lunar_Lander> radim_OM2AMR, thanks for sharing
[20:31] <Lunar_Lander> what did they measure on the flight?
[20:32] <radim_OM2AMR> if I remember well, temperatures, humidity, baro, radiation beta/gamma
[20:32] <radim_OM2AMR> http://vesmirnyprogram.sk/
[20:32] <radim_OM2AMR> they have also some experimental bipolar transistors onboard - from Slovak Science Academy
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[20:33] <radim_OM2AMR> that team is preparing cubesat currently ,they won some tender
[20:34] <Lunar_Lander> cool
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[20:38] <Lunar_Lander> radim_OM2AMR, the animation is awesome!
[20:38] <Lunar_Lander> i.e. that the balloon takes off and we travel upwards and at the top we see the onboard footage and then burst and landing
[20:38] <Lunar_Lander> :)
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[20:48] <radim_OM2AMR> :-) yes, they spend a lot of time with media presentation (tv, newspaper, radio, web)
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[20:48] <DrLuke> hey, what are typical transmitters you guy use for HABs?
[20:48] <Upu> In the UK ?
[20:48] <Upu> NTX2 or RFM22B ?
[20:48] <DrLuke> uh
[20:49] <DrLuke> what frequencies do those operate on?
[20:49] <Upu> 70cms 434Mhz ish
[20:49] <Upu> where are you based ?
[20:49] <DrLuke> germany
[20:49] <DrLuke> 433 is ok then
[20:49] <Upu> ok
[20:49] <Upu> you might be able to use APRS but the UKHAS RTTY isn't a bad idea
[20:49] <DrLuke> what does a NTX2 transmitter/receiver pair cost?
[20:50] <Upu> transmitter you can buy from my shop http://ava.upuaut.net/store
[20:50] <Upu> receiver
[20:50] <Upu> well thats an amateur radio like the Yaesu FT817
[20:50] <Upu> or possibly (untested) some sort of SDR
[20:51] <DrLuke> oh wait, duh, yeah
[20:51] <Upu> http://ukhas.org.uk/guides:sdr_tracker
[20:51] <DrLuke> I have a SDR
[20:51] <DrLuke> what kinds of antenna do you use on the receiving end?
[20:51] <DrLuke> yagi?
[20:51] <Upu> Colinear is fine
[20:51] <Upu> https://dl.dropbox.com/u/63720513/Images/IMG_0783.JPG
[20:51] <Upu> :)
[20:52] <DrLuke> I want that antenna on my house
[20:53] <Upu> the thing at the top is all you need
[20:53] <Upu> I'm just an idiot :)
[20:53] <Upu> * with an understanding wife
[20:53] <DrLuke> haha
[20:55] <DrLuke> well, today I've built myself a groundplane antenna
[20:55] <mclane> DrLuke: where are you located in Germany?
[20:55] <DrLuke> near Karlsruhe
[20:55] <DrLuke> that's in the southwest end
[20:55] <Lunar_Lander> radim_OM2AMR, the only difficulty is that it is in Slovakian but Google translator helps
[20:55] <Lunar_Lander> :P
[20:56] <mclane> ok, I live in Regensburg, so quite far away
[20:56] <DrLuke> http://i50.tinypic.com/2a9b3o4.jpg
[20:57] <mclane> looks ok for the balloon
[20:58] <Lunar_Lander> I'm from Osnabruck
[20:58] <DrLuke> mclane: my antenna?
[21:00] <DrLuke> I'm thinking about buying myself a party balloon and attach the transmitter to it and let it go up to 100 meters or so
[21:00] <DrLuke> and see if it works
[21:01] <Lunar_Lander> damn Sparkfun died again
[21:02] <G0DJA> DrLuke Welcome to the world of Pico balloons ;-)
[21:02] <mclane> DrLuke: yes
[21:03] <DrLuke> hehe
[21:03] <Lunar_Lander> I'm from Osnabruck
[21:03] <G0DJA> You will need to get one under inflated or else it will burst before you want it to (I've been told)
[21:04] <G0DJA> There are people on here who have a lot more experience than I do. HI
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[21:05] <G0DJA> Or else, gas will escape from the welds, again, so I'm told but from people who should know...
[21:05] <DrLuke> I only planned for a couple houndred meters
[21:05] <DrLuke> combined with a string
[21:05] <Lunar_Lander> ah tethered?
[21:05] <G0DJA> That's a good 1st target
[21:06] <G0DJA> I'm also going tethered 1st as well...
[21:07] <G0DJA> So I can check transmitter, Arduino, Program and even try to make sure the GPS feed to the system will work as well
[21:07] <G0DJA> Never assume that things will 'just work'...
[21:07] <DrLuke> yep
[21:07] <Lunar_Lander> yea
[21:08] <DrLuke> just in case I could buy a sniper
[21:08] <Lunar_Lander> we will do a "on the roof on the weekend" test first
[21:08] <Lunar_Lander> XD
[21:08] <G0DJA> You don't need a marksman if it's tethered...
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[21:09] <Lunar_Lander> XD
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[21:10] <G0DJA> Over here we have a minimum envelope that doesn't need official authorisation but most people don't launch picos if it looks like a path that isn't a good idea...
[21:11] <mclane> if you just want to test your system, you do'nt need a ballon for that
[21:11] <Lunar_Lander> yea
[21:11] <Lunar_Lander> as I said we will put ours on the university roof
[21:12] <mclane> I did it like that: http://i50.tinypic.com/2r6dz6o.jpg
[21:12] <mattbrejza> http://www.youtube.com/watch?v=Qig-LVW1yb4
[21:12] <G0DJA> I saw some serious envelopes over Friedrichshafen earlier this year - Zeppelins. ;-)
[21:12] <Lunar_Lander> yea similar mclane :)
[21:12] <Lunar_Lander> G0DJA, COOL they had the Zeppelin NT out this year?
[21:13] <G0DJA> Yep - I took some pictures of it on the ground and flying over the Ham Radio event as well
[21:13] <Lunar_Lander> cool!
[21:13] <Lunar_Lander> how much was a flight?
[21:14] <G0DJA> Expensive Lunar_Lander and you had to book ahead
[21:15] <Lunar_Lander> yea
[21:16] <Lunar_Lander> I think one tour around lake constance costs 400 euro or so
[21:17] <DrLuke> just need a really really long stick
[21:17] <DrLuke> that's all
[21:20] <G0DJA> Pictures of the Zeppelin ( as well as some Amateur Radio pictures) at http://s1061.photobucket.com/albums/t471/G0DJA/Friedrichshafen%20-%20Ham%20Radio%20Outside%20of%20the%20halls/
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[21:24] <Lunar_Lander> cool thx
[21:25] <DrLuke> amazing
[21:25] <Lunar_Lander> what was Ham Tram for?
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[21:33] <Lunar_Lander> G0DJA,
[21:33] <Lunar_Lander> what did the Ham Tram do?
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[21:53] <griffonbot> Received email: James Coxon "[UKHAS] WB9SA-1 10m 28.220Mhz flight tomorrow"
[21:54] <MrScienceMan> hey jcoxon
[21:54] <MrScienceMan> just wondering why do you reset the ublox every 50 or so times
[21:59] <jcoxon> sometimes it plays up
[22:01] <Lunar_Lander> hi jcoxon
[22:01] <jcoxon> its just a backup
[22:01] <jcoxon> incase the settings get messed up
[22:02] <jcoxon> clearing the tracker...
[22:06] <MrScienceMan> jcoxon: sometimes it doesnt lock for good 5 minutes or more
[22:06] <jcoxon> depends on its sky view
[22:06] <jcoxon> ubloxes are the best there is
[22:06] <MrScienceMan> on top of a tall building
[22:07] <MrScienceMan> no obstructions
[22:07] <jcoxon> thats quite slow
[22:07] <jcoxon> what antenna?
[22:07] <MrScienceMan> sarantel
[22:08] <MrScienceMan> SL-1202
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[22:24] <G0DJA> lunar_lander it took people round the site especially from the campsite to the main halls and back
[22:25] <Lunar_Lander> ah
[22:26] <Lunar_Lander> cool! https://www.youtube.com/watch?v=02h6uEvr9HQ
[22:27] <G0DJA> Like a tram but without the rails - In USA at Hamvention they had busses to take people from car parks into the event - You could buy a pass for all the days to get from the car parks and back again
[22:27] <Lunar_Lander> ah
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[22:52] <Laurenceb_> http://www.xtremetec.com/
[22:53] <Laurenceb_> hardcore
[23:02] <Lunar_Lander> cool
[23:29] <gonzo_> tram without rails, that's a trolly bus isn't it?!
[23:32] <Lunar_Lander> yea
[00:00] --- Sat Aug 4 2012