highaltitude.log.20121203

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[00:26] <griffonbot> Received email: gonzo_ "[UKHAS] Re: Sea 3 - UKHAS 0"
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[01:32] <KT5TK> K6RPT-12 just launced.
[01:32] <KT5TK> launched
[01:33] <Darkside> whats the purpose this time?
[01:34] <Darkside> ahh its a floater
[01:37] <KT5TK> 290 ft/min
[01:38] <KT5TK> 1.5 m/sec
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[01:42] <KT5TK> balloon picked up a beer at BJ's brewhouse and then changed direction ;)
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[02:31] <DagoRed> so... who is doing this? http://aprs.fi/#!call=a%2FK6RPT-12&timerange=3600
[02:31] <Darkside> noone here
[02:31] <Darkside> hardly any of the US people join this channel
[02:32] <DagoRed> I know, I was one in the past that has.
[02:32] Action: DagoRed was part of the group from Iowa
[02:33] <SpeedEvil> I'm probably asleep
[02:35] <DagoRed> Darkside: I can't remember, are you in the UK or Australia?
[02:37] <Darkside> Australia
[02:38] <DagoRed> That's what I thought, not far from Melbourne right?
[02:39] Action: DagoRed watched a few launches of yours in the past
[02:39] <DagoRed> FYI, they expect to go across the US with this balloon. They did it in the past. http://aprs.fi/#!call=a%2FK6RPT-12&timerange=3600
[02:51] <Darkside> 'not far from melbourne'
[02:51] <Darkside> lol
[02:51] <KT5TK> K6RPT still shows their last year's flight: http://blog.aprs.fi/2012/03/dead-reckoning-and-horizont-circles.html
[02:52] <Darkside> melbourne is 650km away
[02:52] <KT5TK> K6RPT-11
[02:52] <KT5TK> http://aprs.fi/#!mt=roadmap&z=9&call=a%2FK6RPT-11&timerange=432000
[02:54] <DagoRed> Darkside: I was clearly long then.
[02:54] <DagoRed> *wrong
[02:54] <Darkside> we did do 2 launches from near melbourne
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[02:54] <Darkside> Horus 10 and 21
[02:54] <Darkside> ack
[02:54] <Darkside> Horus 20 and 21 i mean
[02:54] <DagoRed> wow.... must stop writing code and using IRC.
[02:55] Action: DagoRed remembers those
[02:55] <DagoRed> Didn't someone lose their glasses when they jumped in the water to retrieve one of them?
[02:55] <Darkside> that was horus 8
[02:55] <DagoRed> ahh
[02:55] <Darkside> http://projecthorus.org/?page_id=1497
[02:56] <Darkside> ok time for me to get some lunch
[02:56] <Darkside> bbl
[02:56] <DagoRed> later
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[03:56] <Gnea> DagoRed: http://www.californianearspaceproject.com/
[03:56] <Gnea> zZzZ
[03:58] <x-f> no pretty graphs on aprs.fi?
[03:58] <arko> http://aprs.fi/#!call=a%2FK6RPT-12&timerange=604800
[03:59] <x-f> thanks
[03:59] <arko> is this really going to be transatlantic?
[04:01] <DagoRed> Gnea: long time no speak
[04:04] <heathkid> right now... I'd be happy with trans-backyard
[04:04] <heathkid> I need to do a launch soon....
[04:04] <heathkid> driving me nuts
[04:05] <heathkid> 116 people in here right now... how many have done a HAB launch?
[04:06] <heathkid> less than a dozen?
[04:06] <arko> probably more
[04:06] <heathkid> probably not by much
[04:06] <x-f> arko, they (CNSP) did it once - transcontinental and transatlantic
[04:06] <arko> damn
[04:07] <heathkid> got wet didn't it?
[04:08] <x-f> yeah, landed in Mediterranean sea
[04:08] <heathkid> yep
[04:08] <heathkid> bad place to put a sea
[04:08] <heathkid> good for some things... bad for landing balloons...
[04:09] <heathkid> just imagine how different history would be without the Mediterranean sea!
[04:10] <heathkid> but I loved that water! I camped in a tent for two weeks on the beach.
[04:10] <heathkid> awesome experience!
[04:11] <x-f> nice
[04:12] <x-f> what country did that beach belong to?
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[04:20] <heathkid> Italy
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[05:23] <DagoRed> check out this flight path http://aprs.fi/#!call=a%2FK6RPT-12&timerange=3600
[05:23] <Darkside> uh oh
[05:23] <Darkside> i think their gps is screwing up lol
[05:23] <DagoRed> A friend of mine is saying aliens
[05:23] <DagoRed> I'me with you though Darkside
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[06:25] <x-f> K6RPT-12 stopped ascent
[06:27] <x-f> another wrong position report
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[06:29] <x-f> got higher tho
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[06:30] <x-f> yup, it's a float
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[06:39] <Upu> converting to feet how kind go you daveake :)
[06:39] <daveake> Too early :(
[06:39] <daveake> Lol
[06:39] <daveake> Am at Stansted
[06:39] <Upu> going to Belgium ?
[06:39] <daveake> Up at silly o clock
[06:39] <daveake> Denmark
[06:39] <Upu> early one
[06:40] <daveake> 3:30 alarm
[06:40] <Upu> thats on my list of the 10 ten shittest things
[06:41] <daveake> Near the top too
[06:42] <daveake> Any news from Lister?
[06:42] <Upu> No he's quiet
[06:43] <Upu> see what he comes up with today
[06:43] <daveake> He needs to call the boat people
[06:43] <Upu> he does
[06:44] <daveake> Though aiui the boat didn't stop at the landing spot
[06:44] <daveake> But very likely they saw it
[06:44] <Upu> no but its the only lead he has
[06:44] <daveake> Indeed
[06:44] <daveake> Epic if they got it
[06:44] <Upu> G4GUO was still getting a string as it went into the water and it just cut off
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[06:45] <Upu> he said it went from S9 to gone just as it was TXing altitude
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[07:00] <griffonbot> Received email: Anthony Stirk "Re: [UKHAS] Radio Options - What alternatives to NTX2"
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[07:21] <DagoRed> this thing is moving http://aprs.fi/#!mt=roadmap&z=11&call=a%2FK6RPT-12&timerange=21600
[07:25] <Darkside> i see it's in float
[07:25] <DagoRed> The target is apparently Europe.
[07:25] <DagoRed> So they meant to equalize.
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[07:47] <UpuWork> fair bit of speed on it
[07:47] <UpuWork> I'd plug it into spacenear.us but its not working atm
[07:48] <DagoRed> They're in Utah already. Holy shit
[07:49] <UpuWork> 207km/h
[07:50] <DagoRed> They must have been targeting the jet stream.
[07:50] <UpuWork> nah they are way over that
[07:50] <UpuWork> 31km
[07:50] <DagoRed> So what winds are pushing it that much?
[07:50] <UpuWork> fast though
[07:50] <UpuWork> just high altitude ones :)
[07:51] <DagoRed> :P
[07:51] <DagoRed> I was just curious if there were eddy's from the jet stream that shoot up
[07:52] <nosebleedkt> good morning utc+2 !
[07:52] <UpuWork> morning nosebleedkt
[07:52] <x-f> good morning
[07:53] <DagoRed> http://aprs.fi/#!call=a%2FK6RPT-12&timerange=21600
[07:53] <DagoRed> catch the actoin
[07:53] <DagoRed> *action
[07:57] <radim_OM2AMR> fast winds due to Hurricane under it :-) morning to all
[08:02] <Darkside> its still having gps problems
[08:13] <DagoRed> Darkside: in and out. I have no idea what harware they used.
[08:13] <Darkside> last i heard, they were flying BigRedBee trackers
[08:15] <x-f> why they don't build their own trackers as you and Europeans do?
[08:16] <DagoRed> Because most americans are lazy and stupid.
[08:16] Action: DagoRed is American and has seen it.
[08:17] <Darkside> almost all US launches use APRS
[08:18] <DagoRed> Because the network is so extensive.
[08:20] <x-f> APRS doesn't require off-the-shelf trackers, it's an open standard
[08:20] <Darkside> x-f: its just that a lot of the US launches seem to use off the shelf trackers
[08:20] <Darkside> bill is the main exception to the rule
[08:20] <Darkside> WB8ELK
[08:20] <Darkside> he does cool stuff
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[08:21] <UpuWork> I've designed a pico APRS
[08:21] <UpuWork> http://i.imgur.com/50Ohy.png
[08:21] <UpuWork> dual 2mtr and 70cms tracker
[08:21] <UpuWork> ignore the NTX2 thats actually a HX1
[08:21] <UpuWork> 10g
[08:21] <UpuWork> runs from a single AA
[08:21] <Darkside> for how long tho
[08:21] <Darkside> :P
[08:21] <UpuWork> 11 hours
[08:22] <Darkside> ooh
[08:22] <UpuWork> ish
[08:22] <Darkside> this is with a HX1?
[08:22] <UpuWork> James is working on powering the APRS entirely from solar
[08:22] <UpuWork> so then its just a normal Pico
[08:23] <costyn> is this for a floater across Europe?
[08:24] <UpuWork> yeah or back to the US
[08:27] <natrium42> very cool, UpuWork
[08:28] <UpuWork> cheers natrium42
[08:29] <x-f> 10g, wow
[08:29] <x-f> it could float even without a balloon for a while :)
[08:33] <UpuWork> well with solar panels on they tend to fall about 1m/s :)
[08:34] <UpuWork> can make it 8g if you take the case off the HX1
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[08:42] <x-f> wing shaped solar panels in 2-3 years, ion engines in 10-15
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[09:15] <tyuoya> hi all
[09:16] <tyuoya> i have been running a few hahub predictions and was wondering if the suggested landing area will be close to actual landing area at all?
[09:16] <griffonbot> Received email: HansSolo "[UKHAS] Re: Radio Options - What alternatives to NTX2"
[09:16] <Darkside> tyuoya: its pretty good, if your launch follows what you inputted
[09:16] <Darkside> ascent rate, descent rate, burst alt, etc
[09:16] <UpuWork> yeah apart from this weekend its pretty accurate
[09:16] <costyn> heh
[09:17] <tyuoya> how far did it land from predicted area?
[09:17] <Darkside> haha
[09:17] <tyuoya> i mean this weekend?
[09:17] <Darkside> a fair way
[09:17] <Darkside> they think it might have been a lack of wind data for the area
[09:18] <tyuoya> how far and direction?
[09:18] <Darkside> south
[09:18] <Darkside> and into the sea
[09:18] <Darkside> doesn't really matter how far
[09:18] <tyuoya> it does to me
[09:18] <Darkside> a fair way. again, this is an outlier
[09:19] <Darkside> we've never had a problem here in australia
[09:19] <tyuoya> because if the balloon landed in the opposite direction that is really bad
[09:19] <Darkside> nah
[09:19] <Darkside> it just went further than expected
[09:19] <Darkside> and in the case of the UK, that often means landing in water
[09:19] <tyuoya> same direction but further right?
[09:20] <Darkside> yeah, pretty much
[09:20] <Darkside> where woudl you be launching from?
[09:20] <tyuoya> fishing and recovering a payload isn't that bad. 2 in 1
[09:20] <tyuoya> lol
[09:20] <Darkside> haha
[09:20] <tyuoya> saudi arabia
[09:20] <Darkside> ahhhh
[09:20] <Darkside> yes of course
[09:20] <Darkside> but in general, the predictor is very good
[09:21] <tyuoya> coz i will run the prediction a few hours before launch, launch the balloon, and travel tot he predicted landing area. you know what i mean?
[09:21] <tyuoya> if that how it works
[09:23] <costyn> tyuoya: are you Majed?
[09:23] <tyuoya> yes
[09:23] <tyuoya> hi you doing costyn
[09:23] <costyn> tyuoya: ah, different nickname :)
[09:23] <costyn> tyuoya: doing ok
[09:23] <tyuoya> bought a helium tank this morning
[09:23] <tyuoya> will be sending you pics
[09:23] <costyn> cool
[09:23] <costyn> bought or rented?
[09:24] <Darkside> heh, i can probably get my hands on a Gx size cylinder
[09:24] <Darkside> but nobody will ever refill it
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[09:29] <Majed> my laptop went out of battery
[09:29] <Majed> sorry costyn
[09:31] <Majed> anybdy here
[09:31] <Majed> nock nock
[09:32] <Darkside> nope
[09:32] <Darkside> we're all dead
[09:32] <Darkside> sorry
[09:32] <natrium42> x_x
[09:33] <hibby> well i'm here, but I only perv on the conversation ;)
[09:33] <costyn> Majed: was on the phone
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[09:39] <Majed> ok, so i rented "not bought" a helium tank this morning and they say it is grade 6 high purity type
[09:40] <Darkside> heh
[09:40] <Darkside> you don't need high purity stuff
[09:40] <Darkside> standard balloon gas is fine
[09:40] <Majed> paid 1300 local currency, that would be 1300 divided by 3,76 in USD
[09:40] <costyn> pfff... that's a lot of money
[09:40] <Majed> no other option costyn
[09:41] <costyn> Majed: I understand
[09:41] <Darkside> Majed: can't get normal balloon gas?
[09:41] <Darkside> like whats used to full party balloons?
[09:41] <Majed> the tank came without a regulator and now trying to figure out what else i might need
[09:42] <Majed> there is a normal open close valve
[09:42] <Darkside> well you need a regulator
[09:42] <Majed> what kind?
[09:42] <Darkside> tbh, whatever you can get
[09:42] <Darkside> theres ones specifically for helium it hink
[09:43] <Darkside> i think*
[09:43] <Majed> the supplier offered party balloon regulator
[09:43] <Darkside> with the bendy thing?
[09:43] <Darkside> that won't work well for filling a big balloon
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[09:43] <Majed> i thought so Darkside
[09:43] <Majed> that's why i declined it
[09:44] <Darkside> you need a proper regulator, athen sonme kind of hose to go to the balloon
[09:44] <Majed> any pics of a suitable regulator?
[09:44] <Darkside> hm
[09:44] <Darkside> probably best if someon elese gives you a pic
[09:44] <Darkside> as the one we have is quite old
[09:44] <costyn> Majed: search for 'helium regulator' on google images
[09:45] <costyn> although many of them are with the black bendy spout
[09:45] <Majed> i did, all the results show the party balloon ones
[09:45] <costyn> http://moo.pl/~tygrys/balloon/im_regulator.jpg
[09:45] <costyn> this one isn't
[09:46] <Majed> alright.... i think i can get this one costyn
[09:46] <costyn> http://i01.i.aliimg.com/photo/v0/105964333/A_Type_Helium_Regulator.jpg
[09:46] <Darkside> yep thats the kind of thing you're after
[09:46] <Majed> any idea about thickness of the hose costyn?
[09:46] <Darkside> doesnt matter that much
[09:46] <Darkside> it might be worth using a bit of PVC pipe where it goes into the balloon neck though
[09:46] <griffonbot> Received email: "Re: [UKHAS] Pico Board"
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[09:46] <costyn> http://www.bizrice.com/upload/20120309/YQJ_gas_pressure_regulator.jpg
[09:46] <Darkside> else it gets quite difficult to fill
[09:47] <costyn> Majed: probably best to find the regulator first and then buy some hose to go along with it
[09:47] <Darkside> yeah
[09:48] <Darkside> Majed: http://projecthorus.org/wp-content/uploads/2011/01/6mkrn.jpg
[09:48] <Darkside> you can make out our filling setup quite well in that picture
[09:48] <Majed> costyn, i have seen the pvc pipe filling hose on the website the other day and was wondering how to make it
[09:48] <Darkside> in our case, we go from the hose form the regulator, into normal garden hose and garden hose fittings
[09:48] <Darkside> which works fine at low pressure
[09:48] <costyn> Majed: http://www.ebay.nl/itm/UNIWELD-REGULATOR-ARGON-HELIUM-or-NITROGEN-/150957051057?pt=LH_DefaultDomain_0&hash=item2325bdccb1#ht_1035wt_1156 there's some on ebay too, although the shipping costs would be horrible from the USA
[09:49] <costyn> Majed: in any case, it seems the "non party balloon" regulators are all used in welding ; maybe you could search for a welding shop in your area
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[09:50] <costyn> Majed: one type regulator is used for argon, helium or nitrogen apparently
[09:51] <Majed> by the way, the reason i rented high purity helium is because the party balloon type is mixed with air and will not give a perfect lift i.e. ascent rate
[09:51] <costyn> true
[09:51] <Majed> i might be wrong on this one but i don;t want to take the chances
[09:51] <Darkside> thats why you measure the neck lift
[09:51] <costyn> Majed: did your supplier tell you how many cubic meters of gas are in the bottle?
[09:52] <Majed> even if i measure the neck lift correctly, the amount of volume will be bigger i.e faster burst
[09:52] <costyn> Majed: correct
[09:52] <Darkside> it isnt that much of a difference
[09:52] <Darkside> its not worth the extra money for the high purity helium
[09:52] <Majed> well am trying to reach 100k in altidude
[09:53] <Darkside> you'll get that with balloon gas
[09:53] <Darkside> its all we ever use
[09:53] <Darkside> what size balloon did you say you were using again?
[09:53] <Majed> 1200 g
[09:53] <Darkside> easy
[09:53] <Majed> i hope so :)
[09:53] <Darkside> well, as long as your payload isnt too ehavy
[09:53] <Darkside> :-)
[09:54] <Majed> what is a reasonable payload weight?
[09:55] <Darkside> well, a 1200g kaymont will get 1.5kg to 32km at a reasonably ascent rate (5m/s)
[09:55] <Majed> or lets say, balloon weight, parachute, and payload, wiring combines
[09:55] <Darkside> this is not including balloon weight
[09:55] <Darkside> thats taken into account
[09:55] <Darkside> so 1.5kg of payload mass should get to 32kg
[09:55] <costyn> *km
[09:56] <Darkside> yes
[09:56] <Darkside> Majed: how big is your cylinder?
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[09:56] <Majed> supplier said it has 3000 psi in it
[09:56] <Darkside> doesnt tell me much
[09:56] <costyn> Majed: how tall is it?
[09:56] <Darkside> i need volume
[09:57] <Darkside> there shoudld also be a letter describing the size
[09:57] <Majed> i will send you a picture to your email costyn unless there is a way i can post it here
[09:57] <Darkside> imgur.com
[09:57] <costyn> Majed: what Darkside said :)
[09:57] <Majed> ok... will do it now
[09:58] <Majed> hold on
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[10:01] <Majed> http://imgur.com/4QCTx,wjYJs,Pxzcv
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[10:02] <Majed> is the link working?
[10:03] <Darkside> oh wow
[10:03] <Darkside> thats a 5.2m^2 think
[10:03] <Darkside> you won't need all of that!
[10:03] <Majed> good or bad?
[10:03] <Majed> oh ok
[10:03] <Darkside> good
[10:03] <Darkside> you should only need about 3.6m^3
[10:03] <Majed> thank god, i was thinking will that be enough.
[10:04] <Darkside> lol
[10:04] <Darkside> thats *more* than enough
[10:04] <Darkside> if you put all of that into the balloon you'll probably burst it on the ground!
[10:04] <Majed> have you seen the snapshot of the spec card
[10:04] <Darkside> (well, maybe not)
[10:04] <Darkside> yes
[10:04] <Darkside> way overkill
[10:06] <Majed> the only thing left right now is setting up the caperas and SPOT into the payload, and the getting the filling system.
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[10:06] <Majed> i meant to say cameras
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[10:08] <Majed> uploading a picture of the payload and wire
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[10:09] <radim_OM2AMR> Darkside - are you using balloon gas in UK also for HAB records, or purity He ?
[10:10] <Darkside> radim_OM2AMR: they're using hydrogen
[10:10] <Darkside> which has 8% more lift per volume
[10:11] <radim_OM2AMR> , yes, I know. Is there any comparison balloon gas vs pure He ?
[10:11] <Darkside> a few extra nines
[10:11] <Darkside> we don't bother
[10:11] <Darkside> in general, the extra cost isn't worth it
[10:12] <costyn> Darkside: but the label on the tank doesnt seem to specify the size?
[10:12] <radim_OM2AMR> thanks, good to know, as we used purity expensive He...
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[10:12] <Darkside> costyn: i can tell from the pictures
[10:12] <Darkside> and some of the pixels
[10:12] <Darkside> and seeing quite a few in my time
[10:12] <costyn> Darkside: haha
[10:12] <Darkside> not sure if its exactly 5.2m^3
[10:12] <Darkside> but its more than 3.6
[10:12] <costyn> Darkside: I was just wondering if you could estimate what tank size it was
[10:12] <costyn> yea
[10:12] <Darkside> thats all that matters really
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[10:13] <Darkside> juxta!
[10:14] <costyn> Majed: only thing when buying a regulator, make sure the thread size matches what you have on the tank
[10:14] <Majed> absolutely
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[10:14] <Majed> right on
[10:14] <x-f> and the maximum pressure too
[10:15] <costyn> yea if it's only rated for 200bar then the 2000 in the bottle will be too much
[10:15] <Majed> maximum pressure the regulater can handle?
[10:15] <Majed> what pressure limit do i need?
[10:16] <Darkside> higher than your bottle pressure
[10:16] <costyn> Majed: actually it's probably 2000 PSI not 2000 Bar :)
[10:16] <costyn> (right?)
[10:16] <griffonbot> Received email: Kevin Walton "[UKHAS] Re: Launch, Saturday 07:45 (sunrise), 1st December"
[10:16] <x-f> 2000 bar would be helluva lot :)
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[10:17] <Majed> here is a link to pictures of gimball system of the SPOT i made, wire, ductape, neck ties, and payload casing
[10:17] <costyn> yea
[10:17] <Majed> http://imgur.com/tvCsK,0PyV9,dspAE,F5hAU,cpqRm
[10:17] <gonzo___> I'm assuming that balloon gas will just give a lower altutude burst/float than 100% He ?
[10:17] <costyn> Majed: 51 is more than the official 23kg breaking strength, but if that's the only rated cord you can find...
[10:18] <Majed> is more strength a bad thing? i can probably find a lower strength i.e 24kg
[10:18] <costyn> Majed: I mean that international laws say that high altitude balloon lines should break at 23kg
[10:19] <costyn> Majed: yes, more is bad, because if a plane hits it, it shoud break easily
[10:19] <Majed> oh.. ok.. will try to find 24kg
[10:19] <UpuWork> Majed just the stuff used in window blinds
[10:19] <UpuWork> 1mm
[10:20] <Majed> coz i am worried a plane might hit the balloon and cause a crash or something, god forbid
[10:20] <costyn> Majed: yea so better stick to 22kg wire or as close as you can find it
[10:20] <Majed> last thing i want to be involved in. have enough trouble in my life so far
[10:20] <Majed> lol
[10:21] <gonzo___> the met office launch dozens of these balloons every day for decades, and as far as I know have never had a plane strike
[10:23] <Majed> i am the type of person who is unlucky enough to be the only person to have these type of rare events lol
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[10:24] <costyn> Majed: do you know of any laws about balloons in your country?
[10:24] <Majed> HAB is not regulated in my country
[10:25] <Majed> will proceed with the launching anyway
[10:25] <costyn> ok, and you don't need a NOTAM you think? (NOtice To Airmen - pilots)
[10:25] <Majed> what is the worst that could happen, a passenger plane crashes and kills 200 people? lol just kidding
[10:26] <costyn> your tiny payload is very unlikly to be able to cause that much damage
[10:26] <costyn> planes can survive multiple bird strikes
[10:28] <costyn> Majed: the gimbal is made from pvc?
[10:29] <Majed> costyn, i think i should follow all safety messure including NOTAM and what have you.... but in a situation where the practice it self is not regulated!!!!! what can i do
[10:29] <Majed> yes
[10:29] <Majed> yes, pvc
[10:30] <Majed> is the payload thickness enough costyn?
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[10:30] <Majed> i will be using hand warmers as well
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[10:31] <costyn> Majed: I think the box looks strong enough
[10:31] <costyn> Majed: what camera are you using?
[10:31] <Majed> GOPRO HD 2
[10:31] <costyn> Majed: I'm not sure you need handwarmers, we never use them in ours
[10:32] <Majed> what about leakage from the camera openings?
[10:32] <costyn> Majed: make sure you don't put the gopro inside the waterproof case
[10:32] <Majed> why?
[10:32] <costyn> fogging of the lens
[10:32] <costyn> and the gopro will work fine with the temperatures, the SPOT tracker should too
[10:36] <Majed> the only electronics in the payload will be 2 gopro and spot. thinking it may be not enough heat generated by the devices to warm the payload and therefore decided to add hand warmers just in case.
[10:36] <Majed> wana make sure everything goes well for the first flight
[10:37] <Darkside> i'd use an external battery on the gopros
[10:37] <Darkside> they'll give out after about 2 hours, or quite possibly before
[10:37] <Darkside> costyn: the gopro will work fine, the battery won't
[10:37] <Majed> thanks Darkside, was about to ask a question about battery life
[10:38] <Darkside> we use energizer lithium AAs, with a step-down regulator
[10:38] <Darkside> and have it charging off the USB socket throughout the flight
[10:38] <Majed> any tutorial on that Darkside?
[10:38] <Darkside> well, running off the USB socket really - we still have the gopro's internal batteries installed, but they aren't used
[10:38] <Darkside> Majed: well
[10:38] <Darkside> no
[10:38] <costyn> Darkside: I didn't know that, thanks
[10:39] <Darkside> i think we use 6 AA lithiums and some kind of regulator
[10:39] <costyn> what kind of amperage do the gopros use ?
[10:39] <Majed> i have seen many flights use standard battery for the gopro and fillmed the entire flight, launch to land
[10:39] <Darkside> used to use a 7805 i think, but that got a bit hot, so i think we now use a Dimension Engineering AnyVolt, as they can handle up t0 3 amps
[10:40] <Darkside> Majed: if it filmed more than 2 hours, then thats bull
[10:40] <Majed> not a regulator again
[10:40] <Darkside> the standard battery lasts 2 hours
[10:40] <Majed> lol
[10:40] <Darkside> thats it
[10:40] <Darkside> they would have been using an external power source
[10:40] <Majed> there is a double battery accessory that comes witht he gopro.. and i have it
[10:40] <costyn> Majed: yes, pressure regulators, voltage regulators, etc :)
[10:40] <Darkside> Majed: its still a LiPO battery
[10:40] <Darkside> and LiPo batteries freeze and stop working
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[10:41] <Darkside> its why none of us use them on our payloads
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[10:41] <Majed> that's why i am adding hand warmers
[10:41] <Majed> :)
[10:41] <Darkside> it may not be enough
[10:41] <Darkside> it gets *really* cold
[10:41] <Darkside> and don't most of the handwarmers need oxygen to work anyway?
[10:41] <Majed> how will i set up external batteries for the gopro
[10:41] <costyn> the LM2940CT-5 does 5v @ 1A... I've used that on my payload
[10:42] <Majed> hasstle hasstle hasstle
[10:42] <Darkside> costyn: that'll get too hot
[10:42] <costyn> Darkside: ah yea
[10:42] <costyn> at the higher currents
[10:42] <Darkside> yep
[10:42] <Darkside> hence why we use the anyvolts
[10:42] <Darkside> they aren't cheap tho
[10:43] <Darkside> (in fact they are fucking expensive for what they do)
[10:43] <Majed> i am not sure if external battery components are availble locally
[10:43] <Darkside> scuse the french
[10:43] <Darkside> Majed: then fly it without
[10:43] <Darkside> just don't complain if the camera fails
[10:43] <Majed> ok dad
[10:43] <costyn> Majed: maybe something like this http://www.amazon.co.uk/Battery-Extender-Pack-Takes-Batteries/sim/B002PHC1XU/2 where you can put in AA's and it outputs 5V on a USB connector
[10:43] <Majed> just kidding
[10:44] <Majed> Darkside: just kidding
[10:44] <Darkside> costyn: that'd work
[10:44] <Darkside> oh wait
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[10:44] <Darkside> 4xAAs..
[10:44] <Darkside> i wonder if its just a 7805..
[10:44] <costyn> yea was gonna say you'd need 6
[10:44] <Darkside> stepping down from 6v
[10:44] <mfa298> I think the handwarmers have more issues than they solve, the sealed gel ones only last 15-20 minutes, the ones that go longer tend to need oxygen (of which there's less at altitude)
[10:45] <zyp> what's the energy density of the handwarmers compared to lithiums?
[10:45] <costyn> zyp: much much lesss
[10:46] <Majed> i have read somewhere that handwarmers perform longer in high altitude for some reason i can't remember
[10:46] <costyn> Majed: http://www.soundbasemegastore.com/field-portable-recorders/28672-tascam-bp6aa-external-battery-box-6xaa-for-any-usb-device.html here's one with 6 AAs
[10:46] <costyn> Majed: although 4 might work fine... you would have to test it
[10:47] <mattbrejza> im a fan of the lt1959 if you dont mind the extra effort
[10:48] <costyn> mattbrejza: Majed has very little electronics knowledge, so we're trying to come up with some simpler solutions :)
[10:48] <mattbrejza> oh ok, i havnt been paying that much attention
[10:49] <costyn> mattbrejza: plus he's in Saudia Arabia, which makes sourcing parts difficult too
[10:49] <Majed> thanks costyn. i promise i will learn more about electronics by my next flight.
[10:49] <Majed> and radio telemtry of course
[10:50] <mattbrejza> linear will send stuff to you for free, but i wonder how many countries they do that for
[10:51] <Majed> hold on will look for the hab project that used standard battery and hand wormers
[10:51] <Majed> here it is http://jhabproject.com/parts-list/
[10:52] <mfa298> Majed: I suspect the sealed gel ones (the ones you recharge by putting in hot water) will be about the same at altitude.
[10:53] <mfa298> the hand warmers that work by oxidisation or burning require oxygen so might last longer or will probably stop working
[10:53] <Darkside> the sealed gel ones dont last long
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[10:54] <x-f> Majed, how soon are you thinking to launch?
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[10:56] <eroomde> certainties in life
[10:56] <griffonbot> Received email: gonzo_ "[UKHAS] Re: Ofcom Update: GPS Jamming Notice"
[10:56] <eroomde> death
[10:56] <eroomde> taxes
[10:56] <eroomde> grun will need reparing after doing anything other than a total os reinstall
[10:56] <eroomde> grub*
[10:57] <jonsowman> tell me about it
[10:57] <costyn> :)
[10:57] <mfa298> eroomde: at least it's grub and not lilo, that needed fixing after every kernel update.
[10:57] <eroomde> just tried to put / on a new ssd
[10:57] <eroomde> but keep /home on a big spinny 2tb disc
[10:57] <eroomde> fail
[10:57] <eroomde> fixed now
[10:57] <eroomde> but still an annoyance
[11:00] <Majed> x-f: very soon
[11:01] <Majed> all the parts are ready, assembly is holding me from launching
[11:01] <Majed> i mean putting the payload and componenets together ans stuff
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[11:03] <Majed> these are the handwarmers i will be using http://www.amazon.com/Grabber-Hand-Warmers-Pairs-HWPP10/dp/B001CEMJRK/ref=sr_1_8?ie=UTF8&qid=1354531991&sr=8-8&keywords=hand+warmers
[11:03] <Majed> air activated
[11:04] <Majed> they last for 7 hours +
[11:07] <Darkside> there won't be enough air where you will be..
[11:07] <Darkside> well
[11:07] <Darkside> where the payload will be
[11:09] <staylo> otoh, nice warm payload when you retrieve it
[11:10] <Majed> i am majed not Felix Darkside
[11:10] <Majed> :)
[11:10] <Majed> Darkside: any pictures on how to wire the payload?
[11:11] <Majed> costyn maybe
[11:11] <costyn> Majed: http://imgur.com/a/PrsuH#24 <-- I had lines coming from 4 corners of the box
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[11:21] <griffonbot> Received email: Graham GW8RAK "[UKHAS] Re: Sea 3 - UKHAS 0"
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[11:47] <kokey> any pics from last week's clear day launch?
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[12:19] <Laurenceb> SpeedEvil: ping
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[13:09] <SpeedEvil> pong
[13:12] <Laurenceb> hi, i was going to ask about openstreetmap
[13:12] <Laurenceb> but i think my question is answered - i wanted to map positions to roads
[13:12] <Laurenceb> seems the server can do that for me
[13:12] <SpeedEvil> :-)
[13:12] <SpeedEvil> indeed
[13:13] <Laurenceb> just query with the lat/long
[13:13] <SpeedEvil> a lat/lon for map data may not work, you may need too give it a bounding box
[13:13] <Laurenceb> ok
[13:14] <SpeedEvil> you mean you want to give it a lat/lon, and have it spit out 'b113'?
[13:14] <Laurenceb> yes
[13:15] <SpeedEvil> probably best to ask over on #openstreetmap over on IRC.oftc.net
[13:15] <Laurenceb> yeah i did.. no answers
[13:15] <SpeedEvil> there may be a nice a pi
[13:16] <SpeedEvil> I think you need to get a bbox, then parse it yourself
[13:16] <SpeedEvil> you will get a list of road nodes, which you need to work out what the closest is
[13:16] <SpeedEvil> roads are collections of points
[13:18] <Laurenceb> http://nominatim.openstreetmap.org/reverse?format=xml&zoom=16&lat=52.x&lon=-1.x
[13:18] <Laurenceb> is how ive done it
[13:18] <SpeedEvil> hmm
[13:18] <SpeedEvil> I forgot about nominatim
[13:19] <SpeedEvil> I don't think that works for roads with no houses on
[13:19] <SpeedEvil> I may be wrong
[13:19] <Laurenceb> ill try
[13:21] <Laurenceb> http://nominatim.openstreetmap.org/reverse?format=xml&zoom=16&lat=53.043527&lon=-1.25584
[13:21] <SpeedEvil> great!
[13:21] <SpeedEvil> what's this for?
[13:22] <Laurenceb> vehicle dataloggers
[13:22] <SpeedEvil> nearest road for the tracker?
[13:22] <Laurenceb> yes
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[13:22] <Laurenceb> well for vehicle datalogger trackets
[13:22] <Laurenceb> *trakers
[13:22] <SpeedEvil> don't ask the server much more than every minute or so.
[13:23] <Laurenceb> really?
[13:23] <Laurenceb> that sucks
[13:23] <SpeedEvil> well, ask
[13:23] <SpeedEvil> the maintained
[13:23] <SpeedEvil> pinging it every 5s doesn't get you more data anyway
[13:23] <Laurenceb> surely just getting the nearest road is quite low demand?
[13:24] <SpeedEvil> I don't know the load on the server, or its capacity
[13:24] <Laurenceb> well theres lots of trackers running at 1hz
[13:24] <Laurenceb> i see
[13:24] <SpeedEvil> it has in the past been quite fragile
[13:24] <Laurenceb> i have a backlog of 6TB of track data atm :-/
[13:24] <SpeedEvil> and some of the stuff is fragile
[13:24] <Laurenceb> guess ill need my own hardware
[13:24] <SpeedEvil> tab?
[13:24] Last message repeated 1 time(s).
[13:24] <SpeedEvil> tb?
[13:24] <Laurenceb> yes
[13:25] <SpeedEvil> run your own instance, I guess
[13:25] <Laurenceb> many thousands of hours
[13:25] <Laurenceb> yes
[13:25] <SpeedEvil> I don't think it's going to cope though
[13:25] <SpeedEvil> at reasonable speed
[13:25] <Laurenceb> yeah, even if i run it over months
[13:25] <Laurenceb> at low ping rate
[13:25] <SpeedEvil> the servers are often not very optimal
[13:26] <Laurenceb> presumably the nominatim code is open?
[13:26] <Laurenceb> so i could have a local instance
[13:26] <SpeedEvil> I don't suppose you can upload the track logs to osm?m?
[13:26] <SpeedEvil> yes
[13:26] <Laurenceb> i could upload yes
[13:27] <Laurenceb> its commercial vehicles between NHS sites
[13:27] <SpeedEvil> some faster architecture may be useful to contribute back.
[13:27] <SpeedEvil> awesome!
[13:27] <Laurenceb> so no confidentiality really
[13:27] <SpeedEvil> afk - got to move some rocks
[13:27] <Laurenceb> have fun
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[14:03] <radim_OM2AMR> good afternoon daveake, may I have question ?
[14:04] <daveake> sure
[14:05] <radim_OM2AMR> thanks, question regarding PI and serial RTTY. I tried make C code with settings like you had (sniffed from conference :-)
[14:06] <radim_OM2AMR> but not succesful yet, did you use something other for 8N2 setting like was on your slide ?
[14:07] <radim_OM2AMR> I can send bytes to serial, but not decode
[14:11] <griffonbot> Received email: Frits PE2G "Re: [UKHAS] Re: Sea 3 - UKHAS 0"
[14:15] <daveake> No special settings for telemetry. Just 300 baud 300 N 2. In dl-fldigi you can set 1 or 2 stop bits.
[14:17] <radim_OM2AMR> hmm, yes, I know. So you set just CSTOPB, CS8, ONLCR, OPOST and baudrates, nothing else in termios options ?
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[14:17] <fsphil> the stop bits have no effect on fldigi's decoder
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[14:18] <radim_OM2AMR> fsphil, I have to analyze, what is going from TX pin
[14:18] <daveake> No nothing else
[14:19] <radim_OM2AMR> ok, Dave, many thanks, so I will continue the troubleshooting tonight
[14:20] <radim_OM2AMR> my decodec outbut is garbled like in case of wrong speed or number of bits now
[14:20] <radim_OM2AMR> decoded output, sorry
[14:20] <fsphil> checked it's not inverted?
[14:21] <radim_OM2AMR> fsphil, you mean mark/space inversion ? if so, yes, checked
[14:21] <fsphil> yea
[14:22] <daveake> Yeah you can't get it wrong on the Pi, seeing as it's a UART :)
[14:22] <daveake> Just make sure you're tuned right / using USB / not got RV checked
[14:23] <radim_OM2AMR> exactly, that's what I use
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[14:26] <radim_OM2AMR> there can be maybe other issue also, because I can't change baud rate without restarting of PI, although I close port, maybe termios version or whatever else
[14:27] <daveake> Strange. You definitely should be able to change the baud rate without restarting
[14:28] <radim_OM2AMR> yes, otherwise your great idea using one UART for GPS and NTX will not work :-)
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[14:33] <fsphil> how are you setting the parameters?
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[14:35] Nick change: rmp_ -> rmp
[14:36] <radim_OM2AMR> fsphil , at first I get attributes with tcgetattr, then I'm using cflag and oflag like Dave
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[14:37] <radim_OM2AMR> second I set the i/o speed to 300
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[14:37] <radim_OM2AMR> and finaly tcsetattr
[14:39] <radim_OM2AMR> step zero - open the port,&options settings&, step4 send test bytes, step5 close port
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[14:40] <nosebleedkt> yo! yo! yo!
[14:41] <nosebleedkt> does anyone have the schematic of that circuit where you have 1 antenna for both radios?
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[14:42] <fsphil> sounds about right radim_OM2AMR
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[14:51] <radim_OM2AMR> btw, fsphil, I'm using your great fswebcam too :-) great work !
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[14:55] <fsphil> np :)
[14:55] <fsphil> it does seem to have gotten more popular with the raspberry pi being released
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[14:59] <UpuWork> you know there is a good chance K6RPT will swing right over the UK
[14:59] <UpuWork> http://nstar.org/GFS/10mb/10mb.024.png
[15:01] <costyn> UpuWork: interesting
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[15:03] <nosebleedkt> hey
[15:03] <nosebleedkt> i demand ! the link to the pcb !
[15:03] <costyn> respectable speeds 337 km/h
[15:04] <UpuWork> hey nosebleedkt sup ?
[15:04] <nosebleedkt> sup ?
[15:04] <UpuWork> what PCB ?
[15:04] <nosebleedkt> shut-up ?
[15:04] <UpuWork> man that is moving
[15:04] <nosebleedkt> UpuWork, someone posted here some week ago
[15:04] <UpuWork> 194mph
[15:04] <nosebleedkt> a circuit with 2 radios and 1 ant
[15:04] <UpuWork> oh the diplexor
[15:05] <costyn> nosebleedkt: that was Darkside
[15:05] <nosebleedkt> yeah that thingy
[15:05] <nosebleedkt> Darkside,
[15:05] <UpuWork> I have some
[15:05] <UpuWork> http://www.projectswift.co.uk/2012/04/20/diplexor/
[15:05] <nosebleedkt> got the triplextor schematic for me?
[15:05] <UpuWork> diplexor
[15:05] <UpuWork> no don't have the schematic but I have some of the actual boards
[15:05] <astrodog> Upu: NOGAPS looks similar.
[15:06] <UpuWork> ah yes :)
[15:06] <nosebleedkt> UpuWork, i want the schematic so I deplot that circuitry over my system boards
[15:06] <nosebleedkt> deploy*
[15:07] <mattbrejza> just look at the pcb, getthe schemtic from that
[15:07] <mattbrejza> thers one trace with some components in series and parallel with it, and gnd
[15:07] <UpuWork> http://vk3atl.org/technical/Diplexer_1cc.pdf
[15:07] <astrodog> http://www.nrlmry.navy.mil/metoc/nogaps/
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[15:09] <nosebleedkt> mhh
[15:10] <nosebleedkt> Darkside!
[15:12] <UpuWork> its 1:42 in the morning in Darksideville
[15:12] <UpuWork> try again in 6 huors
[15:13] <nosebleedkt> lol
[15:13] <mattbrejza> tbh i would have thought he would more likely be awake at 1.42 then early in the morning...
[15:13] <nosebleedkt> i forgot he is australia ?
[15:13] <nosebleedkt> :P
[15:13] <nosebleedkt> bye all ! off from work !
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[15:19] <mfa298> assuming K6RPT is doing 2m aprs, that's got to get interesting if it comes over the UK as surely it should be obeying the uk laws as well as the USA/international laws for wireless comms.
[15:22] <fsphil> yea it should stop transmitting over the uk
[15:22] <gonzo___> I doubt that ofcom care tbh
[15:22] <fsphil> and what gonzo___ said :)
[15:22] <mfa298> i would suspect the same.
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[15:23] <mfa298> I suppose it could be interesting if any of the amateur "police" notice it. Although that will just end in lots of noise and no action.
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[15:24] <craag> Presumably it's transmitting APRS on 144.390?
[15:24] <mfa298> that would seem likely, chances are no one will notice
[15:25] <fsphil> what's the eta?
[15:25] <fsphil> I'll change frequency
[15:25] <gonzo___> ditto
[15:25] <craag> So won't be received by our infrastructure here.. might have to set up my igate again on that just incase.
[15:25] <mfa298> I'm not sure, I was only going on what was said a bit earlier.
[15:26] <craag> ETA not for a long time I think. Hasn't reached chicago yet!
[15:26] <mfa298> looks like it's making reasonable progress over the usa. although presumably once it hits the pond there will be less tracking.
[15:27] <fsphil> what's its callsign?
[15:27] <craag> Tracking: http://aprs.fi/#!mt=roadmap&z=5&call=a%2FK6RPT-12&timerange=36000
[15:27] <craag> K6RPT-12
[15:27] <fsphil> perfect, thanks
[15:28] <fsphil> oh right, gps bugs
[15:30] <costyn> gps bugs?
[15:30] <craag> Twitter feed has been blaming low temperatures for lost GPS lock. It appears they didn't code for no-lock state!
[15:30] <costyn> is that the wierd zigzag pattern its making?
[15:30] <radim_OM2AMR> ..and the previous US jurney to Europe :-) http://aprs.fi/#!call=a%2FK6RPT-11&timerange=432000
[15:31] <costyn> radim_OM2AMR: ah yea that was pretty epic
[15:33] <UpuWork> 213mph...
[15:33] <UpuWork> yeah the qrz.com lot will complain about it not adhering to regulations
[15:34] <UpuWork> I'll have to get APRS set back up
[15:34] <mattbrejza> and 111516ft this time :)
[15:34] <mattbrejza> =34km
[15:34] <mfa298> oh wow: just had a look at uk.amateur.radio and there were a couple of on post topics and most of the usual moaning. Nothing about the baloon yet but it's probably a bit early for them to notice.
[15:37] <gonzo___> the moany old men tend to stay on HF
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[15:41] <astrodog> Huh. Did it's altimeter break?
[15:43] <costyn> think that's another gps "bug"
[15:44] <mfa298> I think there was a comment on twitter about it reporting something specific as altitude when it lost lock
[15:44] <astrodog> Ah.
[15:44] <costyn> I certainly hope it wasn't doing 369 km/h at 34 m altitude
[15:44] <craag> Yep. Or when it gets only a 2D lock.
[15:44] <costyn> veyron territory
[15:44] <astrodog> costyn: Be fun to watch.
[15:44] <astrodog> :P
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[15:45] <mfa298> from Twitter: Now we know. #CNSP18 // RT @bigredbee: @ikluft 078 is what the u-blox reports when it doesn't have enugh sats to compute real altitude
[15:45] <costyn> astrodog: certainly
[15:47] <UpuWork> no its not
[15:47] <UpuWork> something must be interfereing
[15:58] <costyn> UpuWork: whats your experience with it then?
[15:59] <UpuWork> well 078 isn't what the module reports natively
[15:59] <UpuWork> just gives 2D fix but at 33km altitude
[15:59] <UpuWork> it should be able to see 11 sats
[16:00] <UpuWork> shame I can't plug it into spacenear.us at the moment
[16:00] <UpuWork> or maybe I can
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[16:00] <fsphil> there's a script for that
[16:01] <UpuWork> got it
[16:01] <UpuWork> there you go
[16:01] <costyn> UpuWork: noice
[16:02] <costyn> but it's the wrong one
[16:02] <UpuWork> hmm ?
[16:02] <mattbrejza> will it ignore the dodgy altitude readings?
[16:02] <UpuWork> no idea
[16:02] <UpuWork> altitude seems ok atm
[16:03] <mattbrejza> will make the altitude graph messy otherwise :(
[16:03] <costyn> on aprs.fi it starts in Indiana, on spacenear it starts in california?
[16:03] <UpuWork> I deleted it
[16:03] <costyn> ah
[16:03] <UpuWork> shoudl start from where it is
[16:04] <hibby> costyn: time out on aprs.fi
[16:04] <hibby> you can extend how old the packets you're looking at are
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[16:05] <astrodog> "This station appears to be flying at high altitude and using digipeaters, which causes serious congestion in the APRS network. The tracker should be configured to only use digipeaters when at low altitude."
[16:05] <astrodog> What's that?
[16:05] <UpuWork> ah don't worry about it
[16:05] <costyn> hibby: my bad then
[16:06] <hibby> it's to keep the map clean
[16:07] <K9ILU> The real trouble is the 2 meter band is wide open this morning and it is having trouble getting the packets throw all the culter on the ground.
[16:08] <UpuWork> misreporting altitude
[16:08] <UpuWork> ok fixed the script
[16:08] <UpuWork> working now
[16:08] <costyn> UpuWork: nice
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[16:09] <radim_OM2AMR> UpuGreatWork :-)
[16:09] <K9ILU> If you watch it is bouncing all over and flying fast. It is having a hard time keeping gps lock
[16:09] <UpuWork> lol
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[16:12] <gonzo___> if it leaves US airspace will it contravine ITAR?
[16:12] <UpuWork> lets get the predictor running on that
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[16:13] <astrodog> What happens then? Heh.
[16:13] <UpuWork> over lays on the map the predicted flight path based on current model data
[16:14] <astrodog> I mean with ITAR. *grin*
[16:14] <UpuWork> oh ok
[16:14] <UpuWork> well they ignored most regulations last time
[16:14] <UpuWork> they don't come on here
[16:16] <craag> Do they not have any sort of telemetry other than position and speed?
[16:17] <UpuWork> nah its an off the shelf APRS transmitter
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[16:20] <craag> Still, even the tinytracks support analogue sensors. I'd have thought battery voltage and case temperature would have been useful to know on such a long duration flight.
[16:21] <UpuWork> well I'd love to work with them, do a custom APRS tracker
[16:21] <K9ILU> I think this has a bigredbee and they don't support anything
[16:21] <UpuWork> but I've mailed them a few times they just don't respond
[16:21] <mfa298> I saw a comment on twitter about the battery voltage being monitored
[16:22] <UpuWork> http://www.bigredbee.com/blgps_2mhp.htm
[16:22] <UpuWork> $275 ... :)
[16:23] <UpuWork> Man
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[16:24] <costyn> UpuWork: 1998 called, they want their website design back
[16:25] <UpuWork> lol
[16:25] <costyn> it's even got a webcounter
[16:25] <mfa298> so how long will they be able to claim "... smallest completely integrated GPS/APRS transmitter" ?
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[16:25] <UpuWork> not long...
[16:25] <UpuWork> not if I have anything to do with it
[16:25] <mfa298> :D
[16:25] Action: costyn cheers
[16:26] <UpuWork> Powered by 6xAA
[16:26] <craag> 6xAAs into a linear regulator..
[16:26] <UpuWork> yeah right
[16:26] <UpuWork> in fairness theirs is frequency agile
[16:26] <UpuWork> however as CNSP don't have custom board I don't think its going to switch based on location
[16:26] <costyn> The sensitive SiRF III GPS obtains lock even in the most difficult urban environments. But not at 34KM altitude
[16:26] <UpuWork> which is a shame
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[16:27] <UpuWork> theirs must have the Lassen
[16:27] <UpuWork> its probably still trying to aquire satellites from power on
[16:27] <UpuWork> j/k I know thats a great GPS module
[16:28] <UpuWork> their board is based on the ADF7012 I think
[16:28] <UpuWork> just a shame they can't take advantage of the frequency agility
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[16:33] <KT5TK> As far as I know it's a ADF7012 with a Motorola PA using a uBlox module. Frequency can be set at programing but unlikely during flight.
[16:33] <mattbrejza> http://www.bigredbee.com/docs/BLGPS/beelineGPS_2meter_02.pdf
[16:34] <mattbrejza> lassen + adf7012
[16:34] <fsphil> that's just a software limitation then
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[16:36] <KT5TK> This actual one has a uBlox. Maybe a prototype.
[16:37] <mattbrejza> oh ok, that ds was dated 2008
[16:37] <craag> That GPS is not enjoying life it appears. 4 low-altitude positions reported out of the last 6.
[16:38] <mattbrejza> is the speed based on its zig zag path? also never seen a ublox do that before
[16:38] <UpuWork> they don't do that
[16:39] <fsphil> yea they normally work well or just stop
[16:39] <fsphil> could be a faulty antenna
[16:39] <fsphil> giving a weak gps signal, but just enough to get a lock
[16:40] <mattbrejza> but it seems to be doing a good job of staying just on the edge of the cliff for hte entire flight...
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[16:43] <mattbrejza> also wouldnt you expect correlation between dodgy points rather then what seems like noise?
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[16:44] <KT5TK> My guess is that there are parsing issues from the GPS to the MCU
[16:44] <UpuWork> well
[16:44] <UpuWork> given the altitude issues its having issues with satellites
[16:44] <UpuWork> sure its a ublox ?
[16:45] <mfa298> their twitter said uBlox.
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[16:45] <mfa298> a parsing issue could be where that " 078 is what the u-blox reports when it doesn't have enugh sats" comes from
[16:46] <fsphil> I don't think that's right
[16:46] <UpuWork> nah
[16:46] <mattbrejza> theyve messed up decimal to nmea conversion?
[16:46] <fsphil> it's gonna be something like that
[16:46] <x-f> anybody knows, how to.. err.. unlock aprs.fi site? it says "There are too many connections from your internet address", but that's not really true
[16:47] <mfa298> i'm wondering if it's more a case of that's how thier code parses if there's a lack of satellites rather than the uBlox reporting it
[16:47] <UpuWork> or
[16:47] <fsphil> who had that bug where it was using a uint8_t to multiply a value that would often be greater than 255?
[16:47] <UpuWork> what happens if the number of sats > 9
[16:47] <UpuWork> and it reports 10 as 0 and 11 as 1 etc
[16:47] <UpuWork> I dunno speculation etc
[16:47] <UpuWork> would be really nice if they would come on here
[16:47] <mattbrejza> not too sure about the decimal -> nmea thing now, looking back at the start of the flight there wernt any issues
[16:48] <fsphil> that uint8_t bug was in the metres to feet conversion
[16:48] <fsphil> ah, and it only affected altitude
[16:48] <fsphil> this isn't the same
[16:49] <craag> I think I remember something from messing around that altitude reported was a constant non-zero value when it's only a 2D fix?
[16:49] <mattbrejza> well it depends how they could have screwed up the decimal -> nmea mind you
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[16:52] <craag> That was with the max-6 though. And apparently you can't get a 2D fix from a max-6 in airborne mode, so it's not that.
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[16:54] <mattbrejza> also ublox doesnt necessarily mean ublox 6
[16:55] <astrodog> Huh. We could try and smooth the track, combined with some weather data. That's weird, though.
[16:55] <craag> Yeah I realised that/
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[16:56] <mattbrejza> still might be a code issue due to the way you can see what points look good and which ones dont, if it was a signal issue would it skip between crap and fine every few packets?
[16:57] <astrodog> Those offsets are... freakishly regular for just noise.
[16:57] <astrodog> I don't suppose anyone knows what happens if one of those gets too cold, hot, or wet?
[16:58] <mattbrejza> having messed up a gps antenna before (dont let the ground plane of the lassen antenna touch the metal case of the antenna) it doesnt normally do this
[16:59] <craag> Are the corrupt points ~33km south of where the correct point should be?
[16:59] <astrodog> Lemme export it and take a look.
[16:59] <astrodog> Ah, I can't without signing up.
[16:59] <mattbrejza> na its about 15km
[17:00] <astrodog> Quick and dirty estimate though... yeah, 15-20km.
[17:00] <mattbrejza> some of the later ones are nearer 33km though
[17:00] <mattbrejza> i didnt realise it was that bad (15km), yea i really dont think the gps is to fault
[17:01] kopijs (~blaah@80.232.211.46) got lost in the net-split.
[17:01] bubull3 (~bubull3@host-85-201-149-150.brutele.be) got lost in the net-split.
[17:01] HeliosFA (~helios@reaper.ecs.soton.ac.uk) got lost in the net-split.
[17:01] <astrodog> Can someone export the location points as a CSV for me?
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[17:01] <mattbrejza> you could text to coloumns: http://aprs.fi/?c=raw&call=K6RPT-12&limit=1000&view=normal
[17:01] <craag> Ok. I looked at a few and just wondered if it was a co-incedence that the altitude is 33km off at the same time as it being 33km south of where it should be.
[17:02] <mfa298> most of the bad points do seem to be a similar amount out and at 34m (apart from one point over lake michigan which has a bad time on it)
[17:03] <mattbrejza> also the raw packets thing shows even more are being rejected because the points move too far
[17:03] <astrodog> Can someone briefly explain the layout?
[17:03] <astrodog> I can kick out a map with all of them, along with some of the offset data.
[17:04] <mattbrejza> its in DDMM.mm format
[17:04] <astrodog> *stab* *stab* *stab*... okay, one sec.
[17:04] <mattbrejza> 4232.99N/08558.43W is the coordinate
[17:04] <astrodog> Got it.
[17:06] <x-f> astrodog, you can sign up to get a nice CSV with normal coords and metric system from the API page
[17:07] <astrodog> Signing up now. Any other data columns you guys want?
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[17:08] <DagoRed> http://aprs.fi/#!mt=roadmap&z=11&call=a%2FK6RPT-12&timerange=43200
[17:08] <mattbrejza> i would guess the data export removes the really dodgy ones that are rejected though
[17:08] <DagoRed> that balloon is doing pretty well.
[17:08] <astrodog> Given how regular the offsets are...
[17:08] <astrodog> Do we know their exact launch coords, not from radio?
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[17:10] <mattbrejza> they launched from the same palce last time, so the radio launch position seems good http://aprs.fi/#!call=a%2FK6RPT-11&timerange=432000
[17:13] <astrodog> http://imgur.com/wJqxO
[17:13] <astrodog> That's it with reported speed.
[17:13] <astrodog> Ha. Got it.
[17:14] <astrodog> http://imgur.com/EFARM
[17:15] <astrodog> Every bad point has a bad alt... it offsets every time they go above ~34km.
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[17:16] <mattbrejza> i wonder if its expecting fixed length, but the gps sometimes gives different length strings
[17:16] <KT5TK> The error altitudes are all somewhere around ~100 and they are all multiples of 3 (e.g. 108, 111, 114)
[17:17] <astrodog> matt: It looks like it drops out at ~34km. If they go above that, the location bounces.
[17:17] <astrodog> If we graph the altitude, it's like there's a 34km ceiling.
[17:18] <mattbrejza> that is an odd one
[17:18] <astrodog> I think we can actually correct this, though.
[17:18] <astrodog> (To build a better track)
[17:18] <mattbrejza> overflow occuring maybe
[17:18] <astrodog> That's what it looks like. You know...
[17:19] <astrodog> What's the altitude at their launch site?
[17:19] <mattbrejza> 82ft
[17:19] <mattbrejza> (ish) - this is according to a previous launch
[17:19] <astrodog> Well... that's not very useful then. *grin*
[17:20] <astrodog> Overflowing 32 bits was my thought.
[17:20] <astrodog> Er, 16.
[17:20] <mattbrejza> lol, well im not sure what you want it for :P
[17:20] <KT5TK> How does an uBlox behave if it's not in high altitude mode?
[17:21] <astrodog> matt: Launch alt + 32768
[17:21] <x-f> KT5TK, it looses fix at 21 km altitude, iirc
[17:21] <mattbrejza> 12km when not in flight mode
[17:21] <x-f> ah, right
[17:22] <mattbrejza> odd the launch altitude has anything to do with it
[17:22] <astrodog> So... perhaps they track altitude internally, and that just got zeroed out.
[17:22] <mattbrejza> it is also convering to ft which makes this a bit more interesting
[17:23] <astrodog> Say they're tracking altitude internally by delta. That gets set to some baseline, wherever the thing got built.
[17:24] <mattbrejza> the hard bit is correceting the lat/long mind you
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[17:25] <astrodog> My guess is alt + 34km
[17:25] <DagoRed> astrodog: some California balloon group. You can trace it through the call sign on the web to the launch site.
[17:27] <mattbrejza> well when it gets dark and cold, falling below 34km itll fix itself...
[17:28] <craag> There is a recent point that reported 34183m though.
[17:28] <Upu> spacenear died ?
[17:29] <mattbrejza> well 34.Xkm...
[17:29] <craag> Just reported 34535m
[17:29] <astrodog> cragg: Huh.
[17:29] <craag> Upu: Not here.
[17:30] <Upu> odd
[17:30] <mattbrejza> craag: you doing to the ARM lecture?
[17:30] <mattbrejza> *going
[17:30] <craag> although it's back to /tracker
[17:30] <Upu> firefox being retard
[17:30] <craag> mattbrejza: Forgot about that.
[17:30] <craag> When is it?
[17:31] <mattbrejza> 6.15
[17:31] <mattbrejza> but 'light refreshments' from now
[17:31] <craag> Lol, just checked uni email and I should have remembered, given the number of emails from a certain member of staff.
[17:32] <craag> I'll be heading up now there now then.
[17:32] <mattbrejza> we got 4 from her about it
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[17:33] <fsphil> twisting your ARM?
[17:33] <mattbrejza> pretty much
[17:33] <fsphil> is that ARM as in CPU?
[17:33] <mattbrejza> yea
[17:33] <fsphil> cool
[17:33] <fsphil> sounds like fun
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[17:34] <astrodog> Huh. Is it supposed to go to Canada?
[17:34] <mattbrejza> hopefully, as im delaying dinner for this
[17:34] <fsphil> wonder if that script can be hacked to ignore points with altitude > 1000m
[17:35] <mattbrejza> astrodog: http://nstar.org/GFS/10mb/10mb.024.png
[17:35] <Randomskk> so easy to read :P
[17:36] <astrodog> fs: Just did that.
[17:36] <mattbrejza> my poor eyes
[17:39] <astrodog> http://imgur.com/q3Usq,vRhiS - Bad points removed, recent activity.
[17:39] <astrodog> http://imgur.com/fpT5A - Full track, bad points removed.
[17:40] <astrodog> They only let you do 5 exports per day, aparently.
[17:41] <astrodog> Huh.
[17:43] <mattbrejza> bbl
[17:46] <oh7lzb> https://twitter.com/aprsfi/status/275656991052021760/photo/1 ;)
[17:48] <astrodog> Heh.
[17:48] <KT5TK> oh7lzb: Is this a new feature on aprs.fi?
[17:49] <KT5TK> nice ;)
[17:51] <oh7lzb> Scientific extrapolation methods. ;)
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[17:53] <nosebleedkt> hey
[17:53] <KT5TK> The good thing about this CNSP-18 is that it'll go a long way over inhabited territory.
[17:53] <nosebleedkt> stupid bad question but need to do it again
[17:53] <nosebleedkt> give me that link to the diplexer
[17:53] <nosebleedkt> UpuWork,
[17:53] <nosebleedkt> :D
[17:54] <Upu> http://www.projectswift.co.uk/
[17:54] <nosebleedkt> :D :D
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[18:02] <astrodog> http://imgur.com/ZYmxo Here's the track with GFS
[18:03] <Upu> have you found a new hobby astrodog ? :)
[18:03] <astrodog> Upu: Ha.
[18:04] <astrodog> I'm suprised at the lack of... spatial DB fun in all of this. Fun to apply it.
[18:04] <KT5TK> From twitter: CNSP-18 has a new heater module by @jmcorgan turning on at nighttime. Looks like it was enough to prevent the freezing of last year.
[18:07] <astrodog> Upu: What sort of maps do people want, anyway?
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[18:12] <oh7lzb> And it's going to stay on 144.390 as before, so if it goes transatlantic, we'll need to tune our igates again.
[18:12] <KT5TK> astrodog: How does the track with GFS look over the Atlantic / Europe?
[18:13] <astrodog> KT5: I'm trying to find a GFS feed with the directions now, one moment.
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[18:18] <nosebleedkt> UpuWork, do u know if they have worked that circuitry with success
[18:18] <eroomde> the dutchess of cambridge is pregnent
[18:18] <eroomde> i shall have to not buy any newspapers for the next 9 months
[18:18] <eroomde> or listen to the news
[18:18] <eroomde> or anything
[18:19] <Randomskk> you're forgetting all the postnatal coverage
[18:19] <Randomskk> do princes poop? find out inside
[18:19] <eroomde> 3 years then
[18:21] <Randomskk> might be safe
[18:21] <astrodog> http://imgur.com/16obQ
[18:22] <LazyLeopard> Ignore the red-tops and the tory press and you'll be fine (if a bit short on choice), newspapers-wise...
[18:22] <astrodog> Color gives you direction, on that one... so it'll stop going north soonish... head ESE, then NE again... then through the trough. Looks like you might see it in the UK. :P
[18:23] <nosebleedkt> .
[18:23] <KT5TK> oh7lzb: PecanPico can do this. It'll change frequencies according to GPS location. The PCB is 50 mm long. http://imgur.com/nJUjK
[18:24] <Upu> more like it
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[18:25] <astrodog> Here's everything so far: http://imgur.com/a/lOtxP#0
[18:25] <astrodog> Any other requests? *grin*
[18:25] <Upu> you can stay astrodog you may prove to be useful yet... :)
[18:26] <KT5TK> Transmitting live for 1 1/2 days with that 3.7V 400mAh LiPo already http://aprs.fi/telemetry/a/KT5TK-11
[18:26] <Upu> do you have that GPS in power save ?
[18:27] <KT5TK> I actually disable the dedicated boost reg
[18:27] <Upu> because thats awfully impressive
[18:27] <astrodog> I was wondering... how often do people normally take GPS updates?
[18:27] <Upu> how do you mean ?
[18:28] <astrodog> Well... it seems like you could save a decent chunk of power by using an accelerometer, and just occassionally using GPS for fixes and corrections.
[18:29] <oh7lzb> Cool.
[18:29] <Upu> indeed
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[18:29] <KT5TK> There are two TPS61201 . One for the GPS one for the rest.
[18:29] <Upu> I like the idea
[18:29] <Upu> why 2 KT5TK ?
[18:29] <oh7lzb> KT5TK: If you used the base91 telemetry format, that'd save power too, shorter transmissions.
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[18:29] <KT5TK> The ATmega switches the enable pin of the regulator on and off
[18:29] <oh7lzb> And compressed packet formats. Also increases throughput - less likely to get bit errors.
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[18:29] <oh7lzb> mic-e or compressed.
[18:30] <Upu> ah so you turn the GPS off entirely
[18:30] <Upu> got a battery on it ?
[18:30] <oh7lzb> Is the firmware open source?
[18:30] <KT5TK> oh7lzb: I hear you.
[18:30] <astrodog> Take K6RPT-12 here... acclerometers seem like they'd let you kill the GPS 99% of the time.
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[18:30] <KT5TK> Yes, will be as soon as I have it somehow presentable
[18:30] <oh7lzb> Also, I can make aprs.fi use the sequence number in the base91 telemetry for detecting out-of-order packets.
[18:31] <oh7lzb> Timestamp is used too, currently, but it's much longer in the packet than the 2-char sequence number.
[18:31] <Upu> might have a chat with you at some point KT5TK
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[18:32] <KT5TK> Upu: no problem. I just need to go back to work right now. bbl
[18:32] <Upu> ttyl
[18:36] <eroomde> LazyLeopard: look at the guardian right now
[18:36] <eroomde> see what is the biggest thing at the top
[18:37] <astrodog> Upu: Any thoughts on what maps would actually be useful for this? At the moment, I'm kinda guessing. :P
[18:37] <eroomde> complete with 'live blog'
[18:37] <eroomde> because things that comprise of only one event after 9 months require minute-by-minute updates
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[18:40] <LazyLeopard> Ho hum...
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[19:02] <daveake> eroomde I have some royal news for you .... reported on BBC radio just now:
[19:02] <daveake> "Prince William is an intensely private man, as is Kate"
[19:03] <daveake> You heard it here first
[19:03] <eroomde> this doesn't bode well
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[20:03] <fsphil-m> Is the US balloon still in the air?
[20:04] <Upu> yep
[20:05] <nigelvh> That is a rather squiggly route....
[20:05] <Upu> we don't think the GPS is entirely happy
[20:05] <nigelvh> I wouldn't guess so.
[20:06] <d0wnl0rd> Looks like whether they have only a 2d-fix...
[20:06] <Upu> yup
[20:07] <nigelvh> So the goal here is a floater?
[20:07] <fsphil-m> Trying to get to the EU
[20:08] <mclane> they crossed already most of the North American continent
[20:08] <mclane> launced in California
[20:08] <mclane> quite impressive!
[20:08] <nigelvh> I see...
[20:09] <Upu> 220mphs
[20:09] <mclane> go to aprs.fi and look for the call sign k6rpt-12
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[20:09] <nigelvh> Yeah, I just looked it up.
[20:10] <mclane> and look for data from the last 48 hours
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[20:11] <daveake> Is that really a GPS reception issue? 'cos to me it looks more like a software issue.
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[20:11] <x-f> 2D fix wouldn't give altitude of 32-36 m every time
[20:12] <daveake> I've never seen a GPS do that when having trouble maintaining a lock
[20:12] <nigelvh> Yeah, it's odd in my experience too...
[20:14] <d0wnl0rd> From the twitter feed: "Intermittent 2D-only GPS fix issue remains. Speed and position only accurate when altitude is >100k feet more than once in a row."
[20:14] <d0wnl0rd> So probably software + gps issue in unison...
[20:18] <daveake> Yes could well be
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[20:18] <mfa298> seems an odd set if results if it was just gps issues
[20:19] <nigelvh> Could be lots of stuff. What's most interesting to me is that it's only "sorta wrong." It's not totally broken and placing it on the other side of the world.
[20:22] <d0wnl0rd> have a look at the raw packages at: http://aprs.fi/?c=raw&call=K6RPT-12
[20:25] <nigelvh> It does appear that APRS.fi is doing some filtering of the more-wrong ones, but we're still generally centered on the track.
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[20:29] <Lunar_Lander> hello
[20:29] <daveake> hello LunarLander
[20:33] <Lunar_Lander> no
[20:33] <Lunar_Lander> I am the guy with the underscore in the middle
[20:33] <daveake> so_sorry
[20:33] <g0hww> did anyone find out if that ship had picked up the payload/remains on saturday?
[20:34] <Lunar_Lander> xD
[20:34] <daveake> I've not heard. Upu emailed Lester and asked him to call them.
[20:35] <d0wnl0rd> Will be interesting to see which isobares k6prt-12 will follow: http://image.de.weather.com/web/maps/aviation/winds/web_intl_atlantic_large_winds250mb_day1_720x486.jpg
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[20:40] <Upu> too low
[20:40] <Upu> try 10mb
[20:40] <Upu> http://nstar.org/GFS/10mb/10mb.024.png
[20:41] <oh7lzb> T-4 minutes to launch: http://www.spaceflightnow.com/sealaunch/eutelsat70b/status.html
[20:41] <DagoRed> http://aprs.fi/#!mt=roadmap&z=5&call=a%2FK6RPT-12&timerange=86400
[20:41] <DagoRed> Getting close to the atlantic
[20:44] <Lunar_Lander> liftoff
[20:44] <meatmanek> who launched this one, and is there a writeup or something?
[20:44] <meatmanek> the balloon
[20:44] <meatmanek> k6rpt-12
[20:44] <daveake> CNSP
[20:45] <daveake> Lots of nominal
[20:45] <Lunar_Lander> yea
[20:45] <meatmanek> nominal?
[20:45] <daveake> "good" :)
[20:46] <Lunar_Lander> somehow the arianespace launches are much more silent in that respect
[20:47] <Lunar_Lander> look at the "HUD"
[20:47] <Lunar_Lander> it says one minute until 1st stage burnout but the woman said that the second stage has fired
[20:49] <Lunar_Lander> also at arianespace people don't talk across each other on the webcast
[20:50] <mclane> k6rpt-12 approaching Paris
[20:50] <mclane> (Maine) ;-))
[20:51] <Lunar_Lander> XD
[20:52] <mfa298> looking at some of the raw packets it looks like some of the bad data just gets in too fast.
[20:54] <mfa298> although one I just looked at has the same time, same coords, one was rejected for being too fast and one went through :S
[20:55] <mclane> ebay.de
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[21:01] <Lunar_Lander> ebay?
[21:02] <mclane> sorry, wrong window
[21:03] <Lunar_Lander> xD
[21:04] <d0wnl0rd> mclane you already ordered enough :-)
[21:05] <mclane> d0wnl0rd: its not for me
[21:05] <nigelvh> Sure... that's what they all say. "I swear, I was just holding it for a friend!"
[21:07] <d0wnl0rd> mclane: btw, newest aquisition baofeng uv5r (of course its for a friend)
[21:11] <mclane> d0wnl0rd: what does your friend want to do with it?
[21:14] <d0wnl0rd> rmclane: receive some weird signals at 434 something MHz and transmit them via cable to sound input (at least that what I guess from his crazy mumbo-jumbo)
[21:15] <mclane> d0wnl0rd: FM only - no SSB - will not work!
[21:16] <mclane> (as far as I interpret the specs)
[21:18] <daveake> Yes those are FM not SSB
[21:18] <d0wnl0rd> mclane: oopps, you might be right - well lets try, its just a sdr device
[21:19] <nayr> This station appears to be flying at high altitude and using digipeaters, which causes serious congestion in the APRS network. The tracker should be configured to only use digipeaters when at low altitude.
[21:20] <nayr> aprs.fi dont like R6RPT-12 :)
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[21:22] <DagoRed> They're only transmitting every 2 minutes.
[21:22] <DagoRed> Honestly... who cares
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[21:23] <DagoRed> The APRS traffic isn't that high that they can't handle a balloon.
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[21:25] <nayr> yeah I just thought it was funny arps.fi trying to tell us how to configure our beacons :)
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[21:26] <DagoRed> Heh, oh well.
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[21:27] <DagoRed> nayr: It makes you wish if there was a different standard available in the states.
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[21:46] <Andy274> Hi guys, just created an account on ukhas, looking to see what equipment I need to launch a balloon am really interested in taking video with a go pro w
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[21:47] <Upu> evening Andy274
[21:47] <Upu> what country are you in ?
[21:47] <Andy274> Sorry, that should be go pro camera.cost isn't an issue providing its sub £200!!! Can anyone offer any advice?
[21:47] <Andy274> U.
[21:48] <Andy274> uk sorry -typing on iPad!!!
[21:48] <Upu> ah ok cool
[21:48] <Upu> well personally I'd launch a cheapy camera first
[21:48] <Upu> but yes you can launch a GoPro if you wish
[21:48] <Upu> how do you intend to get it back ?
[21:49] <Andy274> Ok, how do I remote fire the stills?
[21:49] <Upu> well you can remote control a GoPro from the port on the back
[21:49] <Upu> however generally most people leave it going in video mode
[21:49] <Upu> and have a separate stills camera
[21:49] <fsphil> for stills, better to have a Canon or similar
[21:49] <Andy274> Not too sure lol. I intend to use a GPS module of som description
[21:49] <Upu> yep
[21:50] <fsphil> Most Canons can be programmed to take pictures at regular intervals
[21:50] <Upu> well yep but you need to connect the GPS module to something, unless you mean a GSM / GPS ?
[21:51] <Andy274> Yeah I was honking of some kind of mini PC powered with a lithium battery???
[21:51] <Upu> probably too large
[21:51] <Upu> you can do it with an Arduino
[21:51] <Upu> or a PIC
[21:52] <fsphil> looks like that balloon's due to reach us at mid-day tomorrow
[21:53] <fsphil> hopefully
[21:53] <Upu> do we know if its changing frequency ?
[21:53] <fsphil> just gonna ask that now
[21:53] <Andy274> Lol I've no idea what they are (without the power of google!). What am I realistically looking at cost-wise for a relative degree of success to launch & retrieve my payload
[21:55] <fsphil> ack, stupid mailing list. just replied to Mark directly
[21:55] <fsphil> why do lists not reply to the list by default
[21:55] <fsphil> that's stupid
[21:55] <Upu> me too
[21:55] <Upu> doh
[21:55] <fsphil> ah well, he might know :)
[21:55] <Upu> resent
[21:55] <daveake> Not just me that gets annoyed with that then
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[21:56] <Upu> they turned off reply to all after much drama about a year a go
[21:57] <fsphil> they did it intentionally? urg
[21:57] <Upu> yep
[21:57] <Upu> well I'm setup and ready to RX
[21:57] <Upu> also doing a run test on PAVA with 2 x AAA on a 1.8V linear
[21:57] <fsphil> I'll get mine running
[21:58] <daveake> nn all
[21:58] <Upu> you'll get it before anyone else
[21:58] <Upu> night Dave
[21:58] <Upu> you home ?
[21:58] <daveake> need some sleep before working
[21:58] <daveake> Nah
[21:58] <daveake> Denmark
[21:58] <Upu> about to day
[21:58] <Upu> say
[21:58] <Upu> night
[21:58] <daveake> Here all week
[21:58] <Upu> lucky you
[21:58] <fsphil> nice
[21:58] <daveake> yeah
[21:58] <daveake> lol
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[21:58] <daveake> Well .... it's a nice little earner :)
[21:59] <fsphil> I have to pay to go on holiday :)
[21:59] <Upu> those balloons and gas don't pay for themselves
[21:59] <daveake> Nope lol
[21:59] <Lunar_Lander> does anyone know a good way to get 3.7V to 5V without using SMD components?
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[21:59] <Lunar_Lander> XD what a coincidence!
[21:59] <fsphil> use a 5V battery?
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[21:59] <Upu> step up lunar
[21:59] <Lunar_Lander> yea but most stepups are SMD :(
[21:59] <Upu> oh without
[21:59] <Lunar_Lander> save for the one from Sparkfun
[22:00] <Lunar_Lander> or the Maxim MAX608
[22:00] <fsphil> yea use the sparkfun module
[22:00] <Lunar_Lander> on which I am putting my bets now
[22:00] <fsphil> it works fine
[22:00] <Lunar_Lander> yea
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[22:07] <fsphil> I think that's me on 144.390
[22:07] <fsphil> no handy way to test it
[22:08] <Upu> yeah same here
[22:08] <Upu> my FCD seems to be pretty much bang on
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[22:11] <griffonbot> Received email: Anthony Stirk "[UKHAS] K6RPT-12 Transatlantic floater"
[22:15] <Lunar_Lander> so
[22:15] <Lunar_Lander> another awesome flight by them
[22:15] <Lunar_Lander> another North American crossing
[22:15] <nayr> did it land in water?
[22:15] <Lunar_Lander> last year?
[22:15] <Lunar_Lander> yes
[22:15] <nayr> last update shows it over land @ 82ft
[22:15] <fsphil> that's a bug
[22:16] <fsphil> the gps is misbehaving
[22:16] <fsphil> it's still in the air
[22:16] <nayr> ah
[22:16] <Lunar_Lander> but is it really going 359 km/h?
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[22:16] <nayr> ah this time its back at 110k feet
[22:18] <Lunar_Lander> but is it really going 359 km/h?
[22:18] <nayr> yeah
[22:19] <nayr> look at disance covered in 2mins
[22:19] <Lunar_Lander> yea
[22:20] <meatmanek> some guys here had the same question
[22:20] <meatmanek> there's that much wind at 110k feet?
[22:20] <nayr> not much time left before contact is gona be lost
[22:20] <nayr> heh
[22:20] <nayr> not much friction being the optimal way to phrase that
[22:20] <bertrik> stuck on an airplane ? :D
[22:21] <meatmanek> hahaha
[22:21] <fsphil> you'd be surprised how windy it can get up there
[22:21] <nayr> jet stream + little reisstance and you haul ass..
[22:22] <nayr> felix's baloon was doing ~150mph iirc
[22:22] <nayr> pretty quickly
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[22:23] <nayr> K6RPT-12 bout to pass over last APRS station
[22:24] <nayr> on this side of atlantic
[22:24] <g0hww> is it gonna switch to the ARISS frequency over the pond?
[22:24] <jcoxon> g0hww, its sticking to US freq
[22:24] <jcoxon> evening all
[22:24] <g0hww> ah, ok
[22:25] <nayr> i wish id of turned my radio on when it flew over colorado, shoulda heard it
[22:25] <meatmanek> I really gotta get in touch with CNSP
[22:25] <meatmanek> being in SF
[22:26] <nigelvh> Way I figure it, just needs to circle past europe, come back and land in Washington and I'll pick it up.
[22:26] <g0hww> perhaps the ISS crew will have a listen for it anyway :p
[22:27] <nayr> there radios are UHF IIRC
[22:27] <navrac> i might have to dig up a tnc program
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[22:27] <g0hww> i think they have a D700 onboard
[22:27] <meatmanek> like, the camera?
[22:27] <g0hww> no the Kenwood radio
[22:27] <meatmanek> I was gonna say, that'd be a lot of weight.
[22:28] <g0hww> http://www.marexmg.org/hardware/kenwood.html
[22:28] <nayr> yeah but what antennas hooked up to it
[22:28] <nigelvh> They've got VHF/UHF capability on ISS
[22:28] <g0hww> duno but i can hit its digipeater with a handheld on a good day
[22:29] <g0hww> and easily with my d700 and a turnstyle
[22:29] <g0hww> and 50W :)
[22:29] <nayr> i needa try that
[22:29] <fsphil> yea the ISS can do VHF
[22:30] <fsphil> the normal packet frequency is 145.825
[22:30] <griffonbot> Received email: Elmar PD3EM "Re: [UKHAS] K6RPT-12 Transatlantic floater"
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[22:34] Action: jcoxon is jealous of CNSP
[22:35] <nayr> nearly there
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[22:37] <g0hww> would be neat to get a few positions mid-atlantic through the ISS though, wouldn't it, but maybe they figured that there aren't likely to be any satellite gateways (ground segments) in range then anyway
[22:37] <nayr> hope that last station has some good gear
[22:37] <jcoxon> g0hww, i've got arduino code to do it
[22:38] <jcoxon> but its quite a challenge to hit hte ISS with low power
[22:38] <g0hww> how much power?
[22:39] <jcoxon> well my experience is you need 5W
[22:39] <nayr> id be supprised if the baloon has more than 1w
[22:39] <jcoxon> this payload is useing 1W
[22:39] <g0hww> 5W is plenty, from the ground
[22:39] <nayr> http://iss.astroviewer.net/index2.php
[22:39] <nayr> looks like they may be over atlantic at same time
[22:40] <nayr> on its next pass
[22:40] <g0hww> how many days to transit the atlantic by baloon?
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[22:40] <nayr> and its over the atlanitc
[22:40] <jcoxon> with this flight less then 24hrs
[22:40] <g0hww> it should get about 5 passes a day
[22:41] <g0hww> as a vague guess, based on what i get
[22:41] <jcoxon> yeah possibly
[22:41] <nayr> last bit of land for a good long ways
[22:42] <g0hww> not much other activity to contend with mid atlantic
[22:42] <jcoxon> g0hww, indeed
[22:42] <Lunar_Lander> the last one landed off the coast of Algeria
[22:42] <Lunar_Lander> wonder how far this one gets
[22:42] <jcoxon> cnsp are showing it ain't hard to do these floaters
[22:42] <g0hww> ei7ig would probably have a listen from ireland for it
[22:42] <navrac> is there a predicted pathfor thisone
[22:43] <g0hww> he seems to get to satgate most stuff from the west first
[22:43] <nayr> someone posted a chart earlier
[22:43] <nayr> http://nstar.org/GFS/10mb/10mb.024.png
[22:43] <nayr> looks like ireland
[22:44] <g0hww> he's just gone to bed i think
[22:45] <jcoxon> how long before round hte world balloon...
[22:46] <nayr> ah dang
[22:46] <nayr> looks like that was the last beacon
[22:46] <nayr> its overdue for an update
[22:46] <nigelvh> Give it a chance. APRS is not known for getting EVERY packet thought
[22:46] <craag> Might just be that it conflicted with another packet from somewhere else
[22:46] <nayr> and there it is
[22:46] <nigelvh> through*
[22:46] <nayr> damn
[22:46] <nayr> gona be flakey from here I feel
[22:47] <nayr> last oen got pretty far out before it was lost tho iirc
[22:48] <craag> This one's still being igated in Maine every now and then.
[22:48] <craag> So hopefully it'll be a while before VE1PS loses it.
[22:48] <fsphil> are there no igates in newfoundland?
[22:49] <nayr> scroll over and look
[22:49] <fsphil> I'm on spacenear, it doesn't show gates :)
[22:49] <craag> Plenty it appears!
[22:49] <lz1dev> wow, didnt realize habhub didnt like IE
[22:49] <lz1dev> way to go
[22:50] <craag> At least a digipeater and looks like at least a couple of igates in St John's.
[22:50] <Upu> http://spacenear.us/tracker/ look at the welcoming array of antennas in Europe
[22:51] <lz1dev> spain needs some habber
[22:51] <lz1dev> habbers even
[22:51] <g0hww> dammit. we need streetview for balloons :(
[22:51] <nayr> hah
[22:52] <nayr> im sure it all looks the same
[22:52] <lz1dev> over the ocean, sure
[22:52] <nayr> http://space.1337arts.com/wp-content/uploads/2009/09/thumb.jpg
[22:52] <nayr> there's your streetview
[22:52] <lz1dev> nayr: give me a bit left
[22:52] <nayr> refresh
[22:53] <lz1dev> nothing
[22:53] <nayr> exactly
[22:53] <lz1dev> :|
[22:53] <g0hww> i can't see my house
[22:53] <nayr> just be happy the streetview camera wasent pointed up
[22:54] <nigelvh> Also, I'm not sure what size of monitor you have to have to consider an 1844x1383px image a thumbnail as evidenced by the file name...
[22:54] <nayr> heh
[22:54] <nayr> that is a picture of my thumb from space
[22:54] <nigelvh> Ah
[22:56] <g0hww> i've got a bad neck now thanks to that picture
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[22:57] <navrac> does anyone know some igate software that you dont need a callsign to get?
[22:57] <nayr> the problem is usally igates are digipeaters
[22:58] <nayr> so thus you need a callsign
[22:58] <craag> Any uploading to aprs.fi requires you to register with a callsign.
[22:58] <nigelvh> navrac, the issue is only getting a key to upload to aprs-is
[22:58] <navrac> oh well - just thought since there wont bemany tuned to theusfrequency I'dhelpout
[22:58] <nigelvh> The keys are based on callsigns, but aren't necessarily required to be.
[22:58] <craag> Oh ok.
[22:58] <Upu> just request one as M6UPU...
[22:59] <Upu> I didn't say that ofc
[22:59] <nigelvh> navrac, email me and I can set you up with a key
[22:59] <nigelvh> I have the gen code
[22:59] <g0hww> and its possible to take a feed from someone else and inject it yourself
[22:59] <Upu> better idea go pass your radio exam between now and 12 tomorrow
[22:59] <nayr> yeah we could put em on for you if you'll listen
[22:59] <g0hww> as i discovered when i bodged xastir to receive ADS-B data
[23:00] <navrac> just need to find some suitable software
[23:00] <craag> navrac: Windows?
[23:00] <navrac> yep
[23:00] <Upu> there is no suitable software
[23:00] <nigelvh> Yes, there's the two parts, the software to do so, and the APRS-IS key
[23:00] <g0hww> aprx?
[23:00] <nigelvh> I can get you an APRS-IS key if needed.
[23:00] <Upu> agwpe & AGWTracker is wha I use
[23:00] <craag> Try APRSISCE with agwpe soundcard modem.
[23:00] <g0hww> erk. windows naffness
[23:02] <Upu> I keep meaning to document it but I honestly have no idea how I get it working
[23:02] <Upu> and I don't know if I'm doing it right
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[23:19] <navrac> so agwtracker doessnt upload - just displays data?
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[23:46] <m0psi> hi all, i'm not setup to rx aprs for the american floater. how complex is it to setup? I don't have much spare time tomorrow, but would do it if not too complex/time-consuming. I have the hardware (i.e. radio)
[23:46] <nayr> just need a radio tuned in and it piped into a soundcard
[23:46] <nayr> then software to decode packets
[23:46] <m0psi> right, the 'software' bit is the question
[23:46] <m0psi> i'm running mac
[23:48] <Darkside> its a bit hard on mac
[23:48] <Darkside> i wouldn't bother
[23:48] <m0psi> :-(
[23:48] <Darkside> theres is a distinct lack of decent open source APRS software
[23:48] <johnboiles1> so probably out of luck with linux huh?
[23:48] <Darkside> well, there is a distinct lack of decent APRS software in general
[23:48] <Darkside> linux is fine, kind of
[23:48] <Darkside> soundmodem + xastir
[23:49] <Darkside> both are a pain to setup
[23:49] <Darkside> tbh its a shitload easier if you have an external TNC
[23:49] <m0psi> tnc?
[23:49] <Darkside> terminal node controller
[23:49] <Darkside> external modem
[23:49] <m0psi> ok
[23:50] <m0psi> so, the radio output goes into the modem
[23:50] <m0psi> and translates the packets?
[23:51] <Darkside> yup
[23:51] <nigelvh> At some point I need to get around to making an arduino based TNC
[23:52] <nigelvh> I've already got packet generation
[23:52] <nigelvh> Just need decoding.
[23:52] <nayr> i got some mac software leme find it
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[23:52] <nayr> pocketpacket
[23:52] <nayr> not the greatest
[23:53] <m0psi> oh
[23:53] <nayr> but its been doing fine for me
[23:53] <nigelvh> will pocketpacket igate?
[23:53] <nayr> yeah i believe it does
[23:53] <nigelvh> I want someone to make an igate iphone app. That would be perfect for balloon tracking.
[23:54] <nayr> thats what pocketpacket is
[23:54] <nigelvh> Audio through the headphone jack, igate over cell
[23:54] <nayr> im running desktop version tho
[23:54] <nigelvh> No, i have pocketpacket on my phone, it won't igate recieved audio
[23:54] <nayr> no iphone
[23:54] <lz1dev> that app
[23:54] <nayr> oh i dont kno if desktop does
[23:54] <lz1dev> will never pass apple store
[23:54] <nigelvh> it will listen and decode and show you on a map, or it will upload your position to APRS-IS, but for some reason they won't iGate
[23:55] <nayr> oh that sux
[23:55] <nayr> i dont igate off mac i got a lil embeded box doing that
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[23:55] <nayr> i just use it for live-view
[23:55] <nigelvh> Yeah, it seems pretty trivial since all the components are there...
[23:56] <nayr> the guy has been pretty good about bugs
[23:56] <nayr> i
[23:56] <nayr>
[23:56] <nayr> sent
[23:56] <nayr> i sent him a few reports and he fixed em
[23:56] <nayr> might just shoot him an email
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[23:57] <nigelvh> I did last year. He responded "Nice to know you like the app! I have iGate in my list, but as I am currently having little spare time, I can't promise it soon."
[23:58] <nigelvh> Which is entirely understandable
[23:58] <nayr> ah heh
[23:58] <nigelvh> I just think it would be a killer feature and all the components are already there.
[23:59] <nayr> definately
[00:00] --- Tue Dec 4 2012