highaltitude.log.20130107

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[00:10] <mrShrimp_> Why does my name have a space after it now?
[00:10] <mrShrimp_> :p
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[00:10] <fsphil> you joined before your last login timed out
[00:11] <mrShrimp_> right
[00:11] <fsphil> it's gone now, so you can change back
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[00:11] <fsphil> that's one way of doing it :)
[00:12] <mrShrimp> there we go
[00:12] <mrShrimp> thanks
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[00:12] <fsphil> you can also change your nick by typing in: /nick newnickname
[00:12] <mrShrimp> ok
[00:12] <mrShrimp> I finally got my payload's circuitry fixed! :D
[00:13] <fsphil> sweet! what was wrong with it?
[00:13] <fsphil> I just fixed a bug in one of my projects. feels good to get things working
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[00:14] <mrShrimp> I should say code; the arduino Atmega was messing up the timing because I was using software serial instead of just using the normal serial pins
[00:14] <fsphil> payload heading for Le Mans
[00:14] <mrShrimp> It definitely does!
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[00:14] <fsphil> indeed, software serial is responsible for many a timing issue
[00:15] <mrShrimp> How would I interface other sensors though, if I wanted more than one point of input?
[00:15] <chrisg7ogx> still good sigs here on the south coast
[00:15] <mrShrimp> That seems like it could be a problem in the future.
[00:15] <fsphil> some people work around it by disabling software serial during time-crucial operations
[00:16] <mrShrimp> That sounds easy :)
[00:17] <fsphil> it certainly sounds easy :) I've not used software serial
[00:17] <fsphil> always better to use a hardware uart if you have it
[00:17] <mrShrimp> I wonder why it messes up the timing though.
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[00:18] <fsphil> software serial has an interrupt that does quite a bit of work
[00:19] <mrShrimp> even when it isn't being used to read or write?
[00:19] <fsphil> I think it's always active
[00:19] <mrShrimp> hmm, alright. Thanks for explaining this to me!
[00:20] <chrisg7ogx> leaving kit on over night and looking forward to the morning good night all
[00:20] <mrShrimp> I'm going to go order the cardboard box on Amazon now.
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[00:20] <fsphil> night chrisg7ogx
[00:20] <arko> yikes, thats a lot of interference
[00:21] <fsphil> you on jcoxon's rig?
[00:21] <arko> yeah
[00:22] <fsphil> he's in a pretty populated area I think
[00:22] <arko> it looks like it's picking something up at 1700Hz and 2300Hz
[00:22] <arko> it's shifting too
[00:22] <arko> /
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[00:22] <arko> err
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[00:22] <arko> like this / /
[00:23] <arko> doppler effect?
[00:23] <arko> i almost want to jump over and see what it is
[00:23] <fsphil> temperature
[00:23] <arko> should i move the cursor over?
[00:23] <arko> or jut leave it
[00:23] <fsphil> is it decoding?
[00:24] <arko> nope
[00:24] <arko> just garbage
[00:24] <arko> you can clearly see it's shifted
[00:24] <fsphil> could be the noise wiping it out
[00:24] <fsphil> oh the signal itself isn't matching up with the fldigi lines?
[00:24] <fsphil> then yea move it
[00:25] <fsphil> it has regular gaps in the signal, which can cause the afc to lose it
[00:26] <nigelvh> Granted this is a few minutes back, but I've had to disable software serial while transmitting APRS
[00:26] <arko> http://i.imgur.com/dFXiR.png
[00:26] <arko> fsphil ^
[00:26] <arko> but now it's garbage again
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[00:27] <fsphil> yea move the cursor over to those lines
[00:27] <fsphil> click between them
[00:27] <fsphil> they should both line up
[00:28] <arko> cool
[00:28] <arko> waiting for the signal to come back
[00:28] <lz1dev> fsphil: what the predicted direction for ATLAS ?
[00:29] <fsphil> the last prediction I saw has it heading pretty much in a staight line
[00:29] <fsphil> it'll head towards the south west french coast
[00:29] <arko> im cliking but the red lines aren't moving over
[00:29] <lz1dev> going for the south pole, huh
[00:29] <fsphil> head out over the ocean a bit, then into spain
[00:30] <fsphil> when you move the mouse over the waterfall, you should see two yellow lines?
[00:30] <arko> yes
[00:30] <fsphil> hmm. then it should just be a matter of a left click
[00:31] <arko> is there a lock?
[00:31] <fsphil> if james has the auto-tune on, it might attempt to center the signal in the middle
[00:31] <arko> the freq is adjusting itself
[00:31] <arko> like between 1490 and 1510
[00:31] <arko> wiggling around
[00:31] <fsphil> on the waterfall it will, that's AFC
[00:32] <arko> ah
[00:32] <arko> ok
[00:32] <fsphil> but the dl-fldigi can be setup to retune the radio itself
[00:32] <arko> oh wow
[00:32] <arko> neat
[00:32] <fsphil> if the signal goes above 2000hz or below 1000hz
[00:32] <arko> this is my first time using dl-fldigi
[00:32] <fsphil> ah
[00:32] <arko> :P
[00:32] <fsphil> it's a good setup
[00:32] <arko> seriously ya
[00:32] <arko> pretty sweet
[00:32] <arko> if only we had this for aprs here in the states
[00:33] <fsphil> there's code in fldigi's repo for aprs
[00:33] <fsphil> but it's not enabled in the releases yet
[00:33] <arko> yeah i heard
[00:33] <arko> i just dont want to rely on unstable code
[00:33] <arko> im sure it works
[00:33] <fsphil> I've used it to debug my aprs payload
[00:34] <arko> waiting for offical word really
[00:34] <arko> oh
[00:34] <arko> i'll give it a shot
[00:34] <fsphil> it's not an igate or anything, but it's got potential
[00:34] <fsphil> it would be simple to have it upload data somewhere
[00:35] <mrShrimp> Is the plan not to recover Atlas?
[00:36] <fsphil> yea
[00:36] <fsphil> it's not likely to burst until sunrise, and perhaps not even then
[00:36] <arko> wow
[00:36] <arko> it's a floater?
[00:36] <fsphil> yea
[00:36] <mrShrimp> it seems to be
[00:36] <arko> btw, is it being quiet right now?
[00:36] <arko> oh ok
[00:36] <fsphil> although I see the altitude is creeping up
[00:36] <arko> because i see a blue waterfall
[00:37] <fsphil> there are gaps in the singal
[00:37] <fsphil> a<>l
[00:37] <fsphil> er
[00:37] <fsphil> g<>n
[00:37] <fsphil> it's late :p
[00:38] <domlin> Why am i still awake staring at spacenearus
[00:38] <fsphil> haha
[00:38] <mrShrimp> Could it be rising because of the air pressure?
[00:39] <fsphil> possibly, there is an area of high pressure over france
[00:39] <mrShrimp> 2000 meters is quite a lot though
[00:39] <fsphil> either the gas is heating up, which is unlikely
[00:39] <domlin> whats the altitude that it has to reach for burst?
[00:40] <fsphil> or the external pressure has increased
[00:40] <fsphil> or the balloon is stretching
[00:40] <fsphil> I think it's more likely the atmosphere
[00:40] <mrShrimp> How would the balloon stretching affect the rate of ascent though?
[00:40] <domlin> more air resistance
[00:41] <mrShrimp> but less air to resist at the same time, right? :p
[00:41] <domlin> i have no idea, that answer was a giant guess :P
[00:41] <domlin> my understanding of physics is limited :(
[00:42] <fsphil> the balloon keeps the helium at slightly higher pressure than the air
[00:42] <fsphil> if it stretched, it would expand a bit
[00:42] <lz1dev> balloon is sqeezing the helium
[00:43] <mrShrimp> Is that why all the big zero pressure balloons are ... big?
[00:43] <mrShrimp> and baggy
[00:43] <fsphil> they're baggy because they need to start out at their full size, the material doesn't stretch
[00:43] <fsphil> and usually really tall to stop the helium leaking out the bottom
[00:44] <mrShrimp> ok
[00:44] <fsphil> doesn't stretch much anyway
[00:44] <fsphil> the pressure inside will never get that high
[00:44] <fsphil> any increase will cause gas to escape out the bottom
[00:45] <mrShrimp> which is why they are floaters
[00:45] <mrShrimp> ?
[00:46] <fsphil> the physics of zero pressures is a bit confusing for me, but yea I think so :)
[00:46] <fsphil> they won't burst because the gas can escape
[00:47] <mrShrimp> I'm trying to wrap my head around all these pressure dynamics haha.
[00:47] <fsphil> super pressure balloons seem even more complicated
[00:48] <fsphil> they're likely the best bet for circumnavigation
[00:50] <mrShrimp> Do super pressure balloons have venting and ballast systems?
[00:51] <mrShrimp> I need to read up on them more.
[00:51] <fsphil> they could do I suppose
[00:52] <mrShrimp> http://www.youtube.com/watch?v=jtfJuTvaHxo
[00:52] <mrShrimp> this looks helpful
[00:52] <fsphil> was just about to mention Dan
[00:52] <fsphil> he's done a lot of work on these
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[01:48] <arko> woot
[01:48] <Lunar_Lander> good night
[01:48] <arko> made a custom cable and got aprsdroid decoding on my tablet and phone
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[02:08] <arko> aww
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[02:51] <arko> oh crap, lost connection to jcoxon's box
[02:51] <arko> cant reconnect
[02:54] <Randomskk> :(
[02:54] <Randomskk> I'm amazed it's still being picked up!
[02:54] <Randomskk> and by so many people!
[03:12] <arko> :)
[03:12] <arko> i wonder where it will end up
[03:13] <natrium42> crazy
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[03:22] <mrShrimp> How does the tracker know what state the balloon is in? (ascending, falling, etc)
[03:23] <Randomskk> guesses based on recent altitude
[03:44] <KT5TK> Atlas: Amazing floater! Can anyone point me to some info about what balloon it is etc?
[03:52] <natrium42> KT5TK: hwoyee 1600 latex, i believe
[03:52] <natrium42> same as was used for the transatlantic flight
[03:52] <natrium42> usa -> africa
[03:54] <KT5TK> Cool, then Atlas has a chance to survive the morning
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[04:48] <arko> damn
[04:49] <arko> bbc has some good licensing
[04:49] <arko> they love to play these really expensive songs for their programs
[04:50] <Darkside> heh
[04:50] <Darkside> they seem to love jon hopkins for their Horizon shows
[04:50] <Darkside> i remember watching an ep and being able to name every song they played
[04:50] <arko> Led Zeppelin and The Who
[04:50] <arko> heh
[04:50] <arko> yeah
[04:51] <arko> top gear played a song from the last star trek movie
[04:51] <arko> i can just hear the money
[04:51] <Darkside> lol
[04:51] <arko> oh!
[04:51] <arko> reminds me
[04:51] <Darkside> yeah top gear uses heaps of stuff
[04:51] <Darkside> they often use stuff from the tron legacy soundtrack
[04:51] <arko> if anyone is ever filming you and you dont want them to commerically use it
[04:51] <arko> play an expensive song
[04:51] <arko> oh yeah that one too!
[05:21] <arko> thats one slow hab
[05:21] <arko> man
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[05:22] <Darkside> i'd like to know what the battery voltage actuall is
[05:22] <arko> 568volts
[05:22] <arko> lol
[05:22] <arko> thats one hellva vcc
[05:22] <Darkside> ;P
[05:23] <Darkside> i'm betting it;s the raw ADC output
[05:23] <arko> yeah
[05:23] <arko> that would make sense
[05:23] <Darkside> hmm
[05:23] <arko> or 5.68v
[05:23] <arko> but it doesnt seem likely
[05:23] <Darkside> yeah
[05:24] <Darkside> will have to ask jcoxon when he's online
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[05:44] <x-f> morning
[05:44] <x-f> great to see Atlas still in the air and being actively tracked
[05:45] <arko> does anyone outside of the uk have their stations working?
[05:46] <arko> spain or morocco would be nice
[05:46] <arko> :P
[05:46] <x-f> F5APQ is in France
[05:46] <x-f> interesting ascent during the night
[05:47] <arko> oh yeah it's morning there
[05:47] <arko> almost sunrise
[05:47] <arko> i check http://www.daylightmap.com/index.php often now because of this channel
[05:47] <x-f> 6am in balloon area
[05:47] <arko> who'd be awake.. hmm
[05:48] <x-f> sunrise in 1.5 hours i guess
[05:51] <arko> hopefully someone in spain will setup a station
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[06:48] <jcoxon> wow still flying
[06:48] <Darkside> yeah
[06:49] <Darkside> jcoxon: what does the battery level mean?
[06:50] <jcoxon> its raw adc
[06:51] <Darkside> ah
[06:51] <Darkside> whats the conversion then?
[06:51] <SpeedEvil> I assume this isn't on the tracker.
[06:51] <SpeedEvil> or is it just not loading for me
[06:52] <x-f> it's there, just lots of data points, wait a bit
[06:54] <jcoxon> Darkside, its currently about 3.1v ithink
[06:54] <jcoxon> i'm just checking
[06:54] <Darkside> 3.3v payload with a boost reg?
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[06:55] <chrisg7ogx> gobbledegook on text received screen but green in decode window! still decoding
[06:56] <chrisg7ogx> Bon matin everyone
[06:56] Geoff-G8DHE (5d61a0c6@gateway/web/freenode/ip.93.97.160.198) joined #highaltitude.
[06:56] <Geoff-G8DHE> Morning ?
[06:57] <chrisg7ogx> going downstairs on nexus
[06:57] <SpeedEvil> nice looking g float :-)
[06:57] <jcoxon> Darkside, actually i've got that wrong
[06:57] <Geoff-G8DHE> It is that looks to have been getting fixes all night as well
[06:58] <jcoxon> its more like 3.4v currently
[06:58] <jcoxon> nah its into a regulator
[06:58] <Darkside> 1.8v or 3.3?
[06:58] <jcoxon> having the rx and tnc isn't going to hlpe battery
[06:58] <jcoxon> 3.3v
[06:58] <Upu_M0UPU> gosh
[06:58] <Darkside> ahh
[06:58] <Upu_M0UPU> morning
[06:58] <Darkside> morning Upu_M0UPU
[06:58] <Geoff-G8DHE> Are you still copyinh upu ?
[06:58] <jcoxon> i'd expect the voltage to climb a bit when it gets some sunlight
[06:58] <Upu_M0UPU> negative
[06:59] <Geoff-G8DHE> Thought that might be too hopeful!
[06:59] <Upu_M0UPU> Let me just work out where to point rotator but probably not
[06:59] <SpeedEvil> jcoxon: is this solar?
[06:59] <SpeedEvil> or you mean thermal
[06:59] <jcoxon> not solar, i mean thermal
[07:00] <Upu_M0UPU> not high enough
[07:00] <SpeedEvil> ah
[07:01] <Upu_M0UPU> I got a RX at 2am 650km :)
[07:01] Action: SpeedEvil tries to remember where upu is.
[07:02] <SpeedEvil> ah - there
[07:02] <Upu_M0UPU> 652km
[07:02] <Upu_M0UPU> considering the height thats not bad
[07:02] <SpeedEvil> Upu_M0UPU: maaaaybe some sea diffraction
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[07:03] <Upu_M0UPU> hey why did it rise 5km in the night thats odd
[07:03] <jcoxon> dial freq?
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[07:06] <Upu_M0UPU> everyone is on auto :)
[07:07] <chrisg7ogx_> at 30,000 and still going strong
[07:09] <Upu_M0UPU> bit far north for this GT jcoxon
[07:09] <chrisg7ogx_> good morning bon matin europe!
[07:10] <jcoxon> hehe
[07:10] <jcoxon> won't be long
[07:10] <jcoxon> the other two tuners in the is area won't work
[07:10] <jcoxon> both are FM
[07:10] <Darkside> need to get those stations near orleans receiving
[07:11] <jcoxon> so if you look it has gone back past its initial longitude
[07:11] <jcoxon> f8tiw just rx'd
[07:13] <SpeedEvil> :-)
[07:14] <chrisg7ogx_> bon chance f8tiw
[07:14] <SpeedEvil> so is this 3.4v into a ldo, and the batteries on their last pegs?
[07:14] <SpeedEvil> legs
[07:16] <jcoxon> grrrr cusf landing predictor is being funny
[07:16] <jcoxon> SpeedEvil, they should last a bit longer
[07:17] <SpeedEvil> :-)
[07:17] <arko> jcoxon: the vlc cut me out :(
[07:18] <chrisg7ogx_> on way down now?
[07:19] <jcoxon> arko, oh it might be me
[07:19] <jcoxon> i might have just tried to access it
[07:21] <Upu_M0UPU> why did it shoot up 5km in the middle of the night ?
[07:22] <jcoxon> perhaps hadn't found its float altitude
[07:22] <jcoxon> not sure
[07:22] <Geoff-G8DHE> Patch of warmer air ? Its starting todrift high again now quite rapidly
[07:23] <x-f> heat from Paris?
[07:23] <jcoxon> different air pressures perhaps
[07:23] <jcoxon> rough guide:
[07:23] <jcoxon> http://habhub.org/predict/#!/uuid=a8e86fbf4de420063604e2a67805355c6a5a676d
[07:23] <jcoxon> oh
[07:24] <x-f> coming down?
[07:24] <jcoxon> could be
[07:24] <Upu_M0UPU> hmm
[07:24] <Geoff-G8DHE> Likes the idea of retirment in Andorra I guess!
[07:24] <Upu_M0UPU> not quite quick enough ?
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[07:24] <jcoxon> nah thats coming down
[07:25] <Upu_M0UPU> yeah
[07:25] <Upu_M0UPU> how big is the parachute ?
[07:25] <Upu_M0UPU> unless the balloon split and is acting like one
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[07:25] <jcoxon> its a fair sized parachute
[07:26] <arko> is there really no plan to recover it?
[07:26] <jcoxon> not currently
[07:26] <Upu_M0UPU> jcoxon on GT
[07:26] <Upu_M0UPU> got it
[07:27] <Upu_M0UPU> I can't pipe that through
[07:28] <junderwood_M0JCU> Still up (just). Wow!
[07:28] <junderwood_M0JCU> Dial freq is 434 396
[07:28] number10 (d42c14ce@gateway/web/freenode/ip.212.44.20.206) joined #highaltitude.
[07:28] <chrisg7ogx> lost it here i think
[07:29] <chrisg7ogx> oh hold on have it on sdr#
[07:30] <fsphil> descent?
[07:30] <Upu_M0UPU> sort of
[07:30] <jcoxon> yeah
[07:30] <fsphil> -18.1
[07:30] <jcoxon> its descending
[07:30] <fsphil> possibly an unclean burst
[07:30] <Upu_M0UPU> its on that globaltuner
[07:31] <Upu_M0UPU> but be buggered if I can work out how to get the audio from that into dl-fldigi
[07:31] <chrisg7ogx> i thought it had been for some time
[07:31] <fsphil> that was a great float
[07:31] <KT5TK> Upu: record the audio
[07:31] <junderwood_M0JCU> losing it :(
[07:32] <KT5TK> bother about fldigi later
[07:32] <arko> losing 10km that quickly seems like a burst
[07:32] <x-f> that's not really "quickly" for a descent from 30 km
[07:33] <junderwood_M0JCU> gone
[07:33] <fsphil> the balloon is likely still attached
[07:34] <x-f> where is ON5LT?
[07:34] <number10> belgium
[07:35] <Upu_M0UPU> gone from GT as well
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[07:36] <junderwood_M0JCU> 571 km range - not bad
[07:37] <Upu_M0UPU> yeah I got a 650km in when it peaked up in the middle of the night
[07:37] <number10> pretty good
[07:37] <Upu_M0UPU> hopefully one of the French stations will get it soon
[07:37] <junderwood_M0JCU> 17 uW / km :)
[07:38] <Upu_M0UPU> I suspect that still has a very large ripped balloon attached to it
[07:38] <Geoff-G8DHE> drifting low in freq. now
[07:39] <x-f> maybe the balloon didn't burst, but got a large tear
[07:39] <chrisg7ogx> have sigs on sdr# and fldigi but no decode
[07:39] <Geoff-G8DHE> Going to lose it shortly
[07:40] <jcoxon> its on the GT but not decodable
[07:41] <jcoxon> rough landing predictions?
[07:41] <chrisg7ogx> had a partial red then
[07:42] <Upu_M0UPU> i tried KT5TK but as jcoxon says it doesn't decode
[07:42] <Upu_M0UPU> paste the partial chrisg7ogx
[07:42] <Geoff-G8DHE> þþç¯þü3ÿïÿó$$ATLAS,350,07:41:18,a~9°¶2690,781973,15324,11,6,572,151,s*3309 $$ATLAS,3351,07:41:35,469042751,782470,15172,11,6,571,151,s*F65D A%*$$$ATLAS,3352,07:42:00,469007294,7853251,14953,11,6,568,151,s*9F3A $$ATLAS,3353,07:42:17,468986957,7885633,14805,11,6,568,151,s*C228
[07:42] <chrisg7ogx> Âÿÿü$ TLfF Âf&fv&6V6&FVfVfVF6S66 þ$$ATLAS,3351,0:t135,46904251<7824760,1512,11,6,'71,!51,s"¦65D YÌàH 8!ÿÿÿ$$ALAC,352,:42SÜ0,469007294,6853251,953,11,6,568,1=1,s*9F3A $$ATAS,3353,07:42:17,46898697,7885633,14805.11,6,568,151,s*C228 ¬º™»º6
[07:43] <Upu_M0UPU> that last one was posted
[07:44] <Upu_M0UPU> someone is going to wake up in france this moring with an huge sheet of latex over their washing line :)
[07:44] <jcoxon> eek
[07:44] <chrisg7ogx> lol
[07:45] <chrisg7ogx> they'll recycle it as french letters!
[07:45] <Upu_M0UPU> http://habhub.org/predict/#!/uuid=a4cef38eb979683825537ab45ad3a89e6c52a6ed
[07:45] <Upu_M0UPU> National Park
[07:45] <jcoxon> yeah there is minimal wind in this area
[07:45] <Upu_M0UPU> why is the national park very low res
[07:46] <Geoff-G8DHE> Last frme here was $$ATLAS,3355,07:42:59,468958829,7954435,14457,11,6,572,151,s*F425
[07:47] <junderwood_M0JCU> looks like a military national park
[07:47] <jcoxon> thanks Geoff-G8DHE !
[07:47] <chrisg7ogx> very faint trace on waterfall
[07:48] <chrisg7ogx> oh thats project spruce
[07:48] <Upu_M0UPU> did it have any contact details on jcoxon ?
[07:48] <nosebleedkt> hello stratonauts
[07:49] <fsphil> good moaning nosebleedkt
[07:49] <nosebleedkt> moan :P
[07:49] <Geoff-G8DHE> Gone from the waterfall now
[07:49] <arko> hope someone in france will pick it up
[07:49] <chrisg7ogx> for me she has gone just audible
[07:50] <fsphil> looks like it might land slower than 5m/s
[07:50] <chrisg7ogx> just bruising of pilot then?!
[07:51] <chrisg7ogx> not audible now
[07:51] <Upu_M0UPU> nice flight that James well done
[07:52] <jcoxon> Upu_M0UPU, thanks
[07:52] <jcoxon> thats me done for a while in regards to launches
[07:52] <chrisg7ogx> great thank you
[07:53] <jcoxon> hopefully get a few more points from f8tiw
[07:53] Nick change: Upu_M0UPU -> Upu
[07:54] <chrisg7ogx> thanks for your efforts james
[07:54] <fsphil> much better than my float
[07:55] <radim_OM2AMR> morning 2 all, is there any possibility to delete payload info from habitat ? If it was not used yet ?
[07:55] <chrisg7ogx> lol if they were all perfect wouldn't be so attractive
[07:55] <fsphil> that's a good point chrisg7ogx :)
[07:55] <jcoxon> radim_OM2AMR, as in a payload doc?
[07:55] <number10> who long is "a while" for launches jcoxon ?
[07:55] <radim_OM2AMR> jcoxon, yes
[07:55] <jcoxon> radim_OM2AMR, just make a new one
[07:56] <jcoxon> it'll be used instead
[07:56] <radim_OM2AMR> yes, but when I created new one as a copy from existing, I can see both
[07:57] <jcoxon> best have a chat with Randomskk or DanielRichman
[07:57] <radim_OM2AMR> thenn in dl-fldigi are both of them, I just will keep the payload list tidy :-)
[07:57] <radim_OM2AMR> ok, thanks
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[07:58] <chrisg7ogx> does that mean little activity for a while or are there others in the queue to launch?
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[07:59] <costyn> hello all
[07:59] <jcoxon> nah there aere always people about to launch
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[08:04] <chrisg7ogx> well thats good news thanks again..time for brekkers bye everybody and have a good day thanks again
[08:04] <chrisg7ogx> sunrise
[08:05] <chrisg7ogx> does payload have contact details?
[08:08] <Geoff-G8DHE> Normal to have some details on it
[08:09] <Geoff-G8DHE> Oh F8TIW still copying down to 2K
[08:10] <chrisg7ogx> that's good
[08:10] <Geoff-G8DHE> Looks like it will land on farmland
[08:10] <chrisg7ogx> a cow will have an exploding udder
[08:11] <costyn> cows don't really care, horses on the other hand are prone to panic
[08:11] <chrisg7ogx> la moooo
[08:11] <costyn> chrisg7ogx: :)
[08:11] <chrisg7ogx> byeeee
[08:12] <Geoff-G8DHE> have fun
[08:12] <chrisg7ogx> time to reintroduce myself to the wee wifey
[08:12] <chrisg7ogx> and you
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[08:19] <Geoff-G8DHE> Cheers all, time for breakfast!
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[08:36] <gonzo___> wow, AT:AS stayed in my rx passband (no auto tune of the rx here yet, all night
[08:37] <gonzo___> only lost it around burst time
[08:37] <gonzo___> ATLAS
[08:40] <radim_OM2AMR> could some habitat guru approve this flight doc, please ? :-) 9a187135b880772c5b0a12ee746dbd5f
[08:44] <fsphil> interesting, atlas's descent rate actually increased
[08:44] <fsphil> or is that just spacenear rounding incorrectly
[08:45] <fsphil> typical that it steers straight towards the nearest national park
[08:46] <GMT> I'm back ... glad to see it's still active (just!)
[08:46] <x-f> probably balloon let all the gas out and then chute had to carry down the extra weight of 1.6 kg
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[08:48] <fsphil> indeed
[08:48] <fsphil> I do hope someone recovers it, so we can see the state of the balloon
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[08:49] <x-f> F8TIW, bon jour
[08:50] <F8TIW> bonjour
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[08:51] <F8TIW> good flight for atlas
[08:51] <x-f> F8TIW, as the last tracker, are you going to recover the Atlas? :)
[08:51] <GMT> F8TIW: Bon matin, avez-vous un voiture; est-que vous allez a Chateroux pour nous?
[08:51] <Upu> Excellent work F8TIW
[08:52] <F8TIW> j'ai une voiture mais je travaille cet apres midi
[08:52] <F8TIW> merci tres difficile rx deviation en frq
[08:53] <GMT> 'TIW: d'accord!
[08:53] <F8TIW> il y a un mot dans la nacelle pour les personnes qui trouvent le ballon ?
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[08:54] <F8TIW> eventuellement je peux allé la chercher si elle est retrouvé
[08:54] <GMT> 'TIW je ne sais pais, demande a <jcoxon>
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[08:55] <F8TIW> voici mon mail si vous avez besoin d'un om en france pour recuperer la nacelle : f8tiw@orange.fr
[08:56] <GMT> 'TIW: peutetre alle la charcher prochaine semaine?
[08:56] <F8TIW> mercredi je peux
[08:56] <F8TIW> vous connaissez le point de chute exact ?
[08:57] <GMT> a cette moment, non
[08:57] <F8TIW> je l'ai perdu a 2600 mtrs
[08:57] <fsphil> perhaps someone can enable the live predictor
[08:57] <Upu> it won't be far from there
[08:57] <x-f> it should be still TX'ing for some time
[08:57] <Upu> F8TIW if you do go after it the batteries are good for 40 hours
[08:58] <GMT> 'TIW la dernier RX est vous
[08:58] <F8TIW> oui dernier RX me
[08:58] <GMT> TIW say he *may* go for it next weekend?
[08:58] <Upu> won't be txing
[08:59] <Upu> should be good for most of today
[08:59] <GMT> its irobic really, I used to live (2 months!) in that area
[08:59] <GMT> iribic-ironic
[09:01] <Upu> but I doubt jcoxon intended to recover it anyway
[09:02] <Upu> anyway free uAVA board to anyone who finds it :)
[09:02] <F8TIW> quel est la puissance du Tx 434.395 ?
[09:03] <Upu> 10mW
[09:03] <Upu> maybe a fraction more ~ 12mW max
[09:03] <F8TIW> ouie very low
[09:03] <Upu> https://www.sparkfun.com/products/10153
[09:04] <Upu> yeah very low :)
[09:04] <fsphil> I guess he didn't risk the code to increase power again :)
[09:04] <Upu> no :)
[09:04] <fsphil> although the reset should fix that
[09:04] <Upu> yep
[09:05] <Upu> But thanks for taking the time and effort to track it F8TIW, great to know where it landed
[09:06] <Upu> Mais merci d'avoir pris le temps et l'effort de suivre l'F8TIW, grands pour savoir où il a atterri
[09:06] <GMT> an idea for future launches: on the package, as well as the contact details, put the launch date: in case of long-term recovery would be interesting to see.
[09:06] <fsphil> it looks like a nice area to land in
[09:06] <Upu> says Google Translated
[09:06] <Upu> wish I'd learnt French :/
[09:06] <F8TIW> Thank you very happy to help you
[09:06] <fsphil> I did, then promptly forgot most of it
[09:07] <GMT> ... so my efforts to write in French were not quite necessary!
[09:07] <Upu> but impressive
[09:07] <GMT> (blush)
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[09:09] <griffonbot> Received email: Tom Howlett "[UKHAS] Re: Anyone fancy speaking at Cheltenham Geek Nights?"
[09:09] <F8TIW> je peux demander au radio amateur locale de faire une ecoute sur la frequence voir s'il entende quelques choses
[09:09] <Upu> Ce serait bien
[09:10] <Upu> il aura le pouvoir jusqu'au matin demain
[09:10] <F8TIW> ok
[09:10] <Upu> après quoi il sera difficile de trouver
[09:10] <Upu> well
[09:10] <Upu> just look for a field of latex :)
[09:11] <GMT> you're all showing-off and cheating now. Stop using Google Translate!
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[09:11] <Upu> I'm using google translate so apologies if what I'm saying is just garbage
[09:11] <fsphil> lol
[09:11] <F8TIW> je demande une ecoute au radio amateur de la securité civile locale
[09:11] <fsphil> that would be great
[09:12] <fsphil> someone local might even be able to find it
[09:12] <GMT> demande de la securite civile pour une helicoptere!
[09:12] <F8TIW> hahaha
[09:12] <Upu> lol
[09:12] <jonsowman> morning
[09:12] <x-f> a 15m^2 sheet of latex covering the field, easy to spot from air
[09:12] <jonsowman> or salut, should I say
[09:13] <F8TIW> i am private pilot in france but i don't flight now very expencive
[09:13] <number10> morning jonsowman
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[09:14] <jonsowman> how are things number10?
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[09:17] <number10> fine jonsowman - I had another unsuccessful attenpt to float afoil balloon yesterday froy
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[09:18] <number10> ascent rate and weather was fine - maybe the balloons I have tried are not sealed very well
[09:18] <jonsowman> they seem rather hit/miss
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[09:19] <F8TIW> Good day to all i go to work now 73
[09:20] <number10> bye F8TIW
[09:20] <jonsowman> a bientot
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[09:20] <jonsowman> sorry accents are just too difficult on this keyboard
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[09:25] <SpeedEvil> http://www.ebay.co.uk/itm/Solar-PV-panel-220w-poly-BP-SunOasis-MCS-approved-going-cheap-200-available-/321052177388?pt=UK_WSJL_Wholesale_GL&hash=item4ac03373ec
[09:25] <SpeedEvil> if anyone around Manchester happens to want to play with some solar
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[09:36] Nick change: junderwood_M0JCU -> junderwood
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[09:43] <daveake> Morning all
[09:43] <radim_OM2AMR> is there anybody to approve flight doc for the next week flight, please ? 9a187135b880772c5b0a12ee746dbd5f
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[09:49] <navrac2> that looked a good flight yesterday/last night
[09:52] <griffonbot> Received email: "Re : [UKHAS] Launch Today! 12:00 GMT from Suffolk"
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[09:54] <Upu> morning daveake
[09:54] <daveake> Nice flight last night!
[09:55] <daveake> Strange that it ascended.
[09:56] <Upu> yeah
[09:57] <Upu> looks like it came down like PAVA
[09:57] <Upu> balloon and all
[09:57] <Upu> and did the same thing, very slow then 10m/s as it came in
[09:57] <daveake> Yeah that bit's strange-looking too.
[09:58] <daveake> I saw the 10m/s on spacxnear, then read the IRC logs and saw that initial descent was slow
[09:58] <Upu> this RFm22B temperature sensors is err
[09:58] <Upu> token gesture ?
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[09:59] <daveake> Probably! Not used it myself.
[09:59] <Upu> I have the -64 to + 64 'C range
[09:59] <Darkside> i use it on mine
[09:59] <Darkside> works well enough
[09:59] <Upu> and its reading 33'c in here
[09:59] <Darkside> dunno how accurate it is
[09:59] <Upu> and 14'c in the -18'c freezer
[09:59] <Darkside> Upu: thats probably the die temp
[09:59] <Darkside> don't forget the chip contains a pwoer amp too
[09:59] <Upu> been in there an hour, hit 14 and didn't go any lower
[09:59] <Darkside> so it's going to stay pretty warm
[09:59] <Upu> hmm
[09:59] <Upu> seems alittle warmer than I'm expecting but ok
[10:00] <Darkside> i've seen mine hit -30
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[10:01] <navrac_work> is that the rfm temp you are talking about?
[10:01] <Upu> right off to work
[10:01] <Darkside> yes navrac_work
[10:02] <navrac_work> the temp is the dies temp and is hugely effected by the tx amp - if you put it into receive the temp can go very low - but if you have it txing the whole time it never goes much below a few degrees c
[10:02] <Darkside> yeah this is what i've seen
[10:10] <navrac_work> so does anyone have any ideas why the balloon went back up 5000m in the middle of the night?
[10:10] <Darkside> gravity wave?
[10:10] <Darkside> >_>
[10:11] <navrac_work> sounds about as likely as any explanations I can think of
[10:11] <gonzo___> francophobe?
[10:12] <SpeedEvil> heat from the early morning baking.
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[10:12] <gonzo___> comments about a slow descent initially too?
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[10:14] <SpeedEvil> leaks have happened before
[10:14] <SpeedEvil> small failures at the neck
[10:14] <gonzo___> did wonder, if the envenope was not too streached, if it could have split reather than burst
[10:15] <navrac_work> but it went up - a leak woyuld make it go down
[10:16] <SpeedEvil> I mean slow fall
[10:16] <Laurenceb_> not necessarily if it was superpressurised
[10:16] <SpeedEvil> hmm
[10:16] <fsphil> would latex superpressure like that?
[10:16] <SpeedEvil> but not that much rise
[10:16] <navrac_work> funnily enough it died where I lost my first flight
[10:17] <SpeedEvil> you only get a few millibars of auoerpressure
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[10:25] <navrac_work> I managed to track it to 611km - before it went too far off frequency - looks like upu beat me again at 650km
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[10:30] <fsphil> everyone's beaten my record now :)
[10:31] <daveake> :)
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[10:47] <griffonbot> Received email: David Bowkis "Re: [UKHAS] ANU 5: NANU flight details"
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[10:59] <gonzo___> putting the space in that callsigh is really a waste of the chance for a puerile joke!
[10:59] <Darkside> aww
[11:01] <number10> it has been noticed by several people gonzo___
[11:01] <number10> but its over and done with now as next one will be #6
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[11:05] <griffonbot> Received email: Steve Daniels "RE: [UKHAS] Launch Today! 12:00 GMT from Suffolk"
[11:05] <gonzo___> hehe. Well I never claimed to be original, or first
[11:06] <navrac_work> I think that was a premature failure on anu - with that ascent rate it really should have floated - unless the payload was havy - how much did it weigh?
[11:06] <number10> 34g
[11:07] <navrac_work> hmm, odd these picos are unpredictable.
[11:08] <navrac_work> 50g I could possibly understand it - but at 34g I've had flights that have done 600km and 10km
[11:08] <number10> there must be some variability in how well they are sealed
[11:09] <navrac_work> bothy with similar free lifts to yours
[11:09] <number10> I think I will buy some more - maybe a different batch, Steve has them in stock
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[11:09] <navrac_work> I'm just looking back at my figures - it looks like the one that failed had free lifts around 1g but the one with 5g free lift survived
[11:10] <number10> interesting - allthough jcoxons one that went to sweden was about 1g
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[11:14] <navrac_work> I've got two pico balloons here - and actually the quality of the two is very different. I can see that on one of them it has been sealed badly and had creases in it before it was sealed - ie the creases are sealed in. Certainly ozzie1 didnt have those faults in the sealing
[11:14] <daveake> I'm pretty sure it's primarily the balloon variability
[11:15] <daveake> I don't think fill makes much difference
[11:15] <number10> bound to be, I think its just pot luck really
[11:15] <RocketBoy> thats interesting - I guess they are just made as party ballons
[11:15] <daveake> It super-pressures sooner or later, at an altitude defined by the initial fill
[11:15] <navrac_work> yes i think so - I'd never bothered to look too closely at the quality of the seal before
[11:16] <navrac_work> i might have to swap over to 100g latexes
[11:16] <number10> I havent looked at my ones at all before launching - I'll just get some more and give it a try again
[11:16] <daveake> Yeah wouldn't it be nice to be able to buy those here hint hint :)
[11:17] <number10> :)
[11:17] <navrac_work> oh it would hint hint
[11:17] <daveake> Probably more repeatable than the foil ones hint hint
[11:17] <navrac_work> now if only we could find a supplier hint hint
[11:18] <daveake> Yeah, where's Chris? :)
[11:18] <Darkside> >_>
[11:18] <Darkside> i think we have a few :p
[11:18] <Darkside> including a black one
[11:19] <Darkside> we buy straight from hwoyee
[11:19] <daveake> The black ones would take off when they heat up
[11:20] <Darkside> i think terry just decided to buy a bunch of random colours
[11:20] <Darkside> we launched a red 200g at linuxconf last year
[11:20] <Darkside> that looked pretty cool
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[11:58] <WillDuckworth> would FSK or AFSK work better in a rocket? i.e. a bit less drift during launch and flight
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[12:02] <mattbrejza> not sure the GPS will keep up though
[12:03] <Darkside> WillDuckworth: FM will be easier to track
[12:03] <Darkside> thts for sure
[12:03] <Darkside> if the GPS doesn't give out of course
[12:03] <eroomde> yes indeed
[12:03] <Darkside> eroomde knows about trying to track doppler from a rocket :P
[12:03] <eroomde> dopper becomes just a DC offset in FM at the receiver
[12:03] <Darkside> 45 degree lines :P
[12:03] <eroomde> so on that basis, afsk WillDuckworth
[12:06] <WillDuckworth> cheers :)
[12:07] <eroomde> lower range all else being equal, note
[12:07] <eroomde> but might not be such an issue for a model rocket
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[12:20] <eroomde> Zuph: hello long time no see
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[12:23] <domlin-Xperia> Hey everyone
[12:23] <domlin-Xperia> Whats atlas' status? Am on mobile, can't see it :(
[12:24] <Darkside> landed
[12:26] <fsphil> en france
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[12:28] <number10> there is a French Engineer here - the baloon landed about 15km from his family home
[12:29] <joph> did he already pick it up? :D
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[12:45] <griffonbot> Received email: Geoff Mather "Re: [UKHAS] Launch Today! 12:00 GMT from Suffolk"
[12:52] <fsphil> they should change that subject :)
[12:52] <daveake> I was thinking that :)
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[13:07] <cuddykid> WillDuckworth: just sent a request off for CAA permish for latter weekends in feb and 1st weekend in march :)
[13:10] <DanielRichman> radim_OM2AMR: doc approved - in future, you'll have far better chance if you join #habhub and ask there. I'm afraid I don't read through the scrollback that I miss while AFK on #highaltitude any more, there's just too much of it. Alternatively, highlight me or Randomskk
[13:12] <radim_OM2AMR> Oh, DanielRichman, thanks a lot and sorry for inconvenience, I missed that other channel :-(
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[13:34] <WillDuckworth> good stuff cuddykid
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[13:35] <cuddykid> WillDuckworth: if you have something ready it would actually work well if you want to fly it - I'm hoping to test some cutdown modules (yet to make) and your payload could sit underneath and be cut away at say 30km - alternatively I'm going to fly 2 payloads and cut one away earlier
[13:36] <WillDuckworth> excellent - that sounds good to me :)
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[13:36] <WillDuckworth> what balloon have you got?
[13:36] <cuddykid> 1200g pawan
[13:36] <cuddykid> (not them again)
[13:36] <cuddykid> lol
[13:36] <cuddykid> it's a replacement for the balloon that failed me last time
[13:36] <cuddykid> hopefully won't fail again
[13:37] <cuddykid> but I'll be ordering in some Hwoyees too for other flights
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[13:37] <anerDev> Hi guys !?+
[13:38] <anerDev> I ahve a question about the antenna for receive the signal from NTX2 transmitter
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[13:38] <SpeedEvil> yes?
[13:40] <cuddykid> WillDuckworth: don't suppose you have any pyro cutdowns? or if not, any of the black powder?
[13:40] <WillDuckworth> nothing unfortunately
[13:42] <anerDev> so, the best is the ground plane antenna like this http://www.futuraelettronica.net/pdf_ita/8110-GP433.pdf or a stylus antenna like this http://www.futuraelettronica.net/pdf_ita/8110-AS433.pdf ?
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[13:44] <Upu> cuddykid I have some but you'll have to drive up here to get them :)
[13:44] <daveake> For the chase car you need a mag-mount (unless you fancy drilling a hole in your car roof!). Something like this - http://cpc.farnell.com/watson/wsm-270/wsm-270-mini-mag-antenna/dp/IT44456?Ntt=70cm+aerial
[13:44] <Upu> actually
[13:44] <Upu> did I leave them at yours daveake ?
[13:45] <daveake> yes you did
[13:45] <Upu> I take that back I don't have any
[13:45] <daveake> lol
[13:45] <anerDev> daveake
[13:45] <anerDev> I don't use with the car !
[13:46] <anerDev> in generaly the first antenna is the best ?
[13:46] <costyn> anerDev: no, actually a colinear is better
[13:46] <daveake> no
[13:46] <daveake> Get a collinear
[13:46] <costyn> anerDev: diamond x30 colinear forexample
[13:49] <anerDev> i can choose only the 2 antenna above !
[13:49] <anerDev> simple stylus or ground plane !
[13:50] <costyn> anerDev: why is that?
[13:50] <costyn> anerDev: http://www.flqelettronica.it/description.asp?item=286 <-- x-30
[13:51] <anerDev> is this x30 the same of this http://www.futuraelettronica.net/pdf_ita/8110-GP433.pdf ?
[13:51] <costyn> no
[13:52] <anerDev> my sponsor can send me only this 2 antennas ! Stylus or ground plane, I can choos only this !
[13:52] <anerDev> what's the best between this 2 antennas ?
[13:52] <costyn> I see
[13:54] <eroomde> i'm not familiar with 'stylus' antennas? could you provide a link to both?
[13:54] <costyn> eroomde: they're further up
[13:55] <eroomde> oh
[13:55] <eroomde> lunch break sorry
[13:56] <eroomde> also net v slow here as boss is pulling the bonneville speed documentrary from iplayer
[13:56] <costyn> heh
[13:56] <mfa298> those links dont say that much about the antennas.
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[13:57] <mfa298> from what they show the "stylus" antenna is probably only worth it if you've got a metalic surface to mount it onto
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[13:58] <anerDev> yes ! The surface is needed by the stylus !
[13:58] <anerDev> for the ground plane, the first antenna linked, needn't the metallic surface !
[13:58] <mfa298> if you don't have a decent metalic surface to mount onto get the groundplane version
[14:00] <mfa298> for a very basic antenna view, you need something to connect both bits of wire in the coax into, for the ground plane antenna the centre goes to the antenna, and the braid goes to the radials.
[14:01] <mfa298> on the stylus the centre goes to the antenna and the braid (I assume) is connected to the mount and surface it's installed onto.
[14:02] <anerDev> oh ok ok thank you !
[14:02] <anerDev> but my question is another
[14:02] <anerDev> is the best this http://www.futuraelettronica.net/pdf_ita/8110-GP433.pdf OR this www.futuraelettronica.net/pdf_ita/8110-AS433.pdf ?
[14:02] <mfa298> like everyone else though I personally wouldn't use either of those for recieving.
[14:02] <anerDev> in generally
[14:03] <mfa298> it depends a lot on what it's mounted on.
[14:03] <anerDev> not in the car
[14:03] <anerDev> on the wood table
[14:04] <mfa298> with a good ground plane the stylus one is likely to be the better, if you don't have a good ground plane (the metal surface) the first one is a safer bet
[14:04] <mfa298> but that's based on the very limited information in those pdf's
[14:05] <mfa298> for choosing an antenna you ideally want to know things like it's bandwidth, swr, and plots of it's radiation pattern
[14:05] <daveake> How do you plan to retrieve this balloon?
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[14:07] <eroomde> arko: ping
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[14:23] <griffonbot> Received email: anerDev "[UKHAS] Best antenna for receive signal from NTX2"
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[14:27] <OZ1SKY_Brian> hi
[14:28] <costyn> anerDev: why did you email? the question has been answered
[14:28] <costyn> anerDev: if you're mounting it on a wooden table, use this: http://www.futuraelettronica.net/pdf_ita/8110-GP433.pdf
[14:28] <OZ1SKY_Brian> would it be ok to test payload on the tracker again?
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[14:30] <griffonbot> Received email: Radim Mutina "Re: [UKHAS] Translating the DL-Fldigi setup guide"
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[14:35] <OZ1SKY_Brian> no protests
[14:36] <eroomde> green light
[14:36] <OZ1SKY_Brian> great :-)
[14:37] <OZ1SKY_Brian> wonder, do any of you calibrate the gps altitude via payload configuration on habitat?
[14:37] <OZ1SKY_Brian> i mean the offset
[14:37] <Randomskk> I don't think anyone has done that before
[14:38] <Randomskk> generally people just trust that the GPS altitude is accurate
[14:38] <OZ1SKY_Brian> ok, just that i see its not correct
[14:38] <OZ1SKY_Brian> ok
[14:38] <eroomde> how not correct?
[14:38] <OZ1SKY_Brian> alt here is 50-55m and it reads 90-100
[14:39] <eroomde> well, the other thing is that it is very unlikely to be a constant offset on the altitude
[14:39] <nigelvh> The geoid is going to be off by a bit, and will vary with position.
[14:39] <Randomskk> that's not very surprising. GPS altitude is not hugely accurate, especially if there is low vdop
[14:39] <OZ1SKY_Brian> eroomde yes your right, ill leave it be
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[14:39] <eroomde> it will depends on the position of the sats in the sky above you, and their signal to noise ratios, and other things
[14:39] <griffonbot> Received email: Steve Aerospace "Re: [UKHAS] Flight Announcement XABEN-41"
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[14:39] <eroomde> and gps's use an approximation of the earth's surface whose error varies from place to place
[14:40] <nigelvh> I have a precision GPS time reference, and I can watch the altitude value it reports change by quite a bit with weather conditions or time of day or a pile of other factors.
[14:40] <OZ1SKY_Brian> eroomde yes no need to mess with it then, just trying to make as few misstakes as possible on my first tracker :-)
[14:41] <eroomde> sure :)
[14:41] <eroomde> i think just checking the bejesses out of your parsing and reformatting for the radio is the most important thing
[14:42] <OZ1SKY_Brian> nigelvh ok then its pointless, anyway it off by "just" 50m
[14:42] <eroomde> for things like crossing the meridian, corrupted ascii chars (eg a comma where you aren't expecting one) and so on
[14:42] <eroomde> zero padding and minus signs are a favourite too
[14:43] <OZ1SKY_Brian> im not planing on that, i hope it will stay here in Denmark
[14:43] <OZ1SKY_Brian> float is not the aim
[14:44] <eroomde> if it can't handle the meridian, it's broken anyway
[14:44] <eroomde> so make sure it can
[14:44] <eroomde> even if it 'definitely shouldn't cross it
[14:44] <OZ1SKY_Brian> eroomde will look into that, thanks
[14:46] <eroomde> unless you are doing some very specific bandwidth conserving thing like dropping off the first few significant bits of the coordinates because you don't expect to leave a certain area. but even in that case i would still write a robust and correct parser and then knowingly modify the data structure that it produces
[14:48] <eroomde> you'll just sleep better at night knowing the parser is robust :)
[14:49] <OZ1SKY_Brian> yes i understand :-)
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[15:12] <wibble_> It is a little late, but is this good for HAB tracking: http://www.ebay.co.uk/itm/170970318872?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649
[15:13] <Upu> they those aren't bad
[15:13] <Upu> they those ?
[15:13] <Upu> meh
[15:13] <Upu> yes
[15:13] <wibble_> excellent, as I have bought it..
[15:13] <Upu> lol
[15:13] <Upu> good price as well
[15:13] <daveake> yup
[15:13] <wibble_> got tired of trying to get my ezcap working
[15:13] <Upu> they do work just need some patience
[15:14] <wibble_> so does anyone want to buy an ezcap ;)
[15:14] <wibble_> for£70
[15:14] <Upu> lol
[15:14] <wibble_> anyone have a suggestion for antenna for this?
[15:15] <SpeedEvil> I want to buy some eestor caps
[15:15] <wibble_> i've got access to a roof about 10m up
[15:15] <Upu> don't ask what is "best"
[15:15] <Upu> ah
[15:15] <Upu> best for a roof fixed installation
[15:15] <Upu> best is some huge Yagi on a rotator
[15:15] <SpeedEvil> 34m dish
[15:15] <Upu> good compromise is one of the Colinears
[15:15] <Upu> X50 W50 W300 etc
[15:16] <Randomskk> eroomde: around?
[15:16] <Upu> http://www.ebay.co.uk/itm/X-50-144-430-MHZ-DUAL-BAND-COLINEAR-HIGH-GAIN-ANTENNA-FIBREGLASS-ENCAPSULATED-/160709557114?pt=UK_Mobile_Phones_Communication_Radio_Antennas&hash=item256b093b7a
[15:17] <wibble_> http://www.moonraker.eu/Amateur-Radio/Base-Vertical-Antennas/Dual-and-Triband-Colinear/Diamond-Colinears/DIAMOND-X-50-DUAL-BAND-VERTICAL
[15:17] <wibble_> guess the same!
[15:17] <Upu> cheaer on tbay
[15:17] <eroomde> Randomskk: yus
[15:17] <Upu> or http://www.moonraker.eu/Amateur-Radio/Base-Vertical-Antennas/Watson-Vertical/WATSON-W-50-DUAL-BAND-VERTICAL
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[15:17] <wibble_> yet more money ;)
[15:17] <Upu> which is what I have
[15:17] <Upu> welcome to the hobby
[15:18] <wibble_> that's next pay day then!
[15:19] <WillDuckworth> Upu - with your pava - are you using softserial?
[15:19] <cuddykid> there is quite a large outgoing at first when acquiring all the equip - from then on it's not too bad for each launch. It took me ages to acquire the basics
[15:19] <Upu> no WillDuckworth
[15:19] <Upu> don't like it
[15:20] <Upu> I used it in the dual GPS launch
[15:20] <Upu> but otherwise I avoid it like the plague
[15:20] <wibble_> i've got a 5v arduino for some testing now, just need to get a GPS & 433 transmitter
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[15:20] <Upu> I know a good shop.. :)
[15:21] <WillDuckworth> :D
[15:21] <WillDuckworth> http://ava.upuaut.net/store/
[15:22] <Upu> stocked up again now
[15:22] <wibble_> and also a radio license
[15:22] <Upu> you don't need a radio license to receive
[15:22] <Upu> however it maybe helpful to get it for back ground
[15:22] <wibble_> not even to transmit up in the air?
[15:23] <Upu> The radios we use are license exempt
[15:23] <Upu> are you in the UK ?
[15:23] <wibble_> yes
[15:23] <Upu> http://ava.upuaut.net/store/index.php?route=product/product&path=71_63&product_id=61
[15:23] <Upu> that one is fine
[15:23] <Upu> Then : http://ukhas.org.uk/guides:linkingarduinotontx2
[15:24] <wibble_> sweet thanks.
[15:24] <wibble_> just got to get a better connections as the ones supplied with the starter kit are a little loose
[15:25] Action: Hibby backs up Upu on radio license providing excellent background on how rf works...
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[15:27] <wibble_> ok will take a look
[15:28] <domlin> hola
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[15:29] <lz1dev> weather just completely denied any habbing around here
[15:30] Nick change: chrsstubbs -> chrisstubbs
[15:30] <domlin> nice spellz
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[15:33] <griffonbot> Received email: Roberto Zinelli "[UKHAS] where buy NTX2"
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[15:34] <daveake> paging Upu :)
[15:34] <griffonbot> Received email: Anthony Stirk "Re: [UKHAS] where buy NTX2"
[15:34] <Upu> :)
[15:35] <Upu> or you can buy direct from RMX at twice the price..
[15:35] <mattbrejza> new -> message -> from saved message ...
[15:36] <Upu> lol
[15:37] <Upu> its on the tutorial as well
[15:37] <daveake> you need a bot
[15:37] <daveake> wrong bot
[15:37] <Upu> Sorry jcoxon...
[15:39] <OZ1SKY_Brian> very nice atlas flight
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[16:00] <RocketBoy> By the way XABEN-40 used an old NTX-2 Upu had supplied for crystal testing. The crystal was replaced using one from a blown up NTX-2. That NTX-2 had landed on a power line and blew up the output stage! Good reuse I thought.
[16:00] <Upu> lol
[16:01] <fsphil> ah so it wasn't an rfm22b
[16:01] <Upu> should have said I still have the originals
[16:01] <fsphil> wait I'm confusing flights. what did Atlas use?
[16:01] <Upu> but yes the Wombles would be proud
[16:02] <Upu> got the parts btw RocketBoy thanks
[16:02] <Upu> ready to launch Pico just need some decent weather now
[16:02] <RocketBoy> spiffing!
[16:03] <Upu> 27g all in
[16:03] <RocketBoy> Sunday was good
[16:03] <Upu> not up here it wasn't
[16:03] <RocketBoy> bit porky
[16:03] <Upu> just been heavily over cast
[16:03] <Upu> porky ? :)
[16:03] <RocketBoy> 27g
[16:03] <Upu> thats everything
[16:03] <Upu> Is that alot for a pico ?
[16:03] <Upu> I thought I was doing ok there
[16:05] <RocketBoy> got 30g for using matrtix board and PDIP pic
[16:05] <Upu> http://imgur.com/a/rHGru#xfUod
[16:05] <Upu> Insultation is 10g
[16:06] <Upu> the power plugs are 1g too
[16:06] <Upu> but give me some flexibility as I don't have a soldering iron here
[16:06] <RocketBoy> yeah - its the plugs
[16:07] <Upu> plug it in and go
[16:07] <Upu> much easier
[16:07] <RocketBoy> I just solder in the battery and have a 0.1" link to switch it on
[16:08] <Upu> guess so
[16:08] <Upu> next one
[16:08] <Upu> this will suffice for testing
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[16:08] <RocketBoy> nuce scales
[16:08] <fsphil> a 0.1 header?
[16:08] <RocketBoy> nice
[16:08] <RocketBoy> yeah
[16:08] <Upu> £6 from dx.com
[16:09] <RocketBoy> cool - 1kg
[16:09] <RocketBoy> ?
[16:09] <Upu> 100g
[16:09] <RocketBoy> ah
[16:09] <Upu> just search for drug dealer scales
[16:09] <Upu> j/k
[16:09] <RocketBoy> :-)
[16:09] <Upu> http://dx.com/p/portable-digital-pocket-scale-100g-0-01g-1-cr2032-52763
[16:09] <eroomde> RocketBoy: ty
[16:09] <Upu> accurate too someone lend me a 5g reference weight and it came out as 5.01g
[16:10] <eroomde> you linked to dx
[16:10] <Upu> I did
[16:10] <RocketBoy> eroomde: np
[16:10] <fsphil> this is bad
[16:10] <fsphil> eroomde will buy something now
[16:10] <eroomde> now we are cursed for 45 mins of idle browsing and buying things we don't need because oh my god they're so cheap
[16:10] <Upu> lol
[16:10] <Upu> damn right
[16:10] <eroomde> i have 3 (three) of those swarf soldering iron tip cleaners now thanks to them
[16:11] <eroomde> no point buying just 1 at that price
[16:11] <daveake> lol
[16:11] <fsphil> I've a bag full of laser modules
[16:11] <Upu> lol
[16:11] <fsphil> and 3 watt LEDs
[16:11] <fsphil> which I'll never use
[16:11] <Upu> you are all weak
[16:11] <daveake> I saw "now we are cursed for 45 mins of idle browsing and buying things we don't need because oh my god they're so cheap" and just knew you were talking about dx.com :)
[16:11] <eroomde> we sould have a DXics Anonymous
[16:11] Action: Upu strokes his 4 CREE Torches
[16:11] <daveake> You'll go blind doing that
[16:11] <nigelvh> LOL
[16:12] <Upu> escpecially with that big one Dave
[16:12] <daveake> big black one
[16:12] <daveake> indeed
[16:12] <Upu> Dave was so impressed with my big torche he got one himself
[16:12] <Upu> so did Number10 :)
[16:12] <eroomde> link?
[16:12] <eroomde> just incase
[16:12] <lz1dev> which one Upu
[16:12] <Upu> http://www.aliexpress.com/store/product/1PC-TrustFire-TR-J18-Flashlight-7-CREE-XM-L-T6-LED-Flashlight-5-Mode-8000-Lumens/903269_560120199.html
[16:13] <Upu> this insane piece of engineering
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[16:13] <lz1dev> oh
[16:13] <lz1dev> thats the handheld sun
[16:13] <Upu> Dave was so impressed with the portal it made in his Kitchen he ordered one from Santa
[16:13] <daveake> Santa delivered
[16:13] <lz1dev> you used inside
[16:13] <daveake> And he didn't need Rudolph to find his way here
[16:14] <lz1dev> :o
[16:14] <fsphil> that does look nice
[16:14] <RocketBoy> is that the one that can set fire to things?
[16:14] <Upu> if you put reflective tape on your payload I'm sure it will be easier to find with that at night
[16:15] <fsphil> https://www.youtube.com/watch?v=B-8BaUbMESE
[16:15] <Upu> no but it does get hot
[16:15] <daveake> You know those big yellow torches that the likes of Halford sell, with "2 million candlepower" written on the side?
[16:15] <daveake> This makes them look like 1 candle power
[16:15] <fsphil> who measures things based on candles
[16:15] <nigelvh> Candle makers?
[16:15] <daveake> People who like zeroes
[16:15] <Upu> lol
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[16:16] <jcoxon> I was summoned
[16:16] <Upu> sorry
[16:16] <daveake> ha
[16:16] <fsphil> uh-oh
[16:16] <daveake> Upu's fault
[16:16] <Upu> basically if the summon script doesn't match a name
[16:16] <Upu> you get it
[16:16] <jcoxon> I know
[16:16] <Upu> and I was cocking about sorry
[16:16] <jcoxon> I wrote it
[16:16] <jcoxon> :d
[16:17] <jcoxon> back to work
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[16:17] <Upu> god I feel guilty now
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[16:17] <daveake> lol
[16:17] <fsphil> at least there isn't a callout charge
[16:17] <daveake> Upu Someone may have died whilse jcoxon was dealing with that :p
[16:17] <Upu> should I summon him to apologise ?
[16:17] <daveake> yes you should
[16:17] <daveake> lol
[16:17] <WillDuckworth> do it
[16:17] <nigelvh> The summon script should start accepting paypal
[16:18] <Upu> should cost to use it
[16:18] <fsphil> he should really fix that
[16:18] <nigelvh> From the flashlight page: "Switch Type: Clicky/Clickie"
[16:18] <lz1dev> there is a summon script
[16:18] <lz1dev> lol
[16:19] <fsphil> it's the best kind of switch
[16:19] <fsphil> that and the clunk/click one
[16:19] <fsphil> it needs a charger
[16:20] <fsphil> sheesh it's half heatsink
[16:20] <Upu> and 3 x 18650 calls
[16:20] <Upu> indeed :)
[16:20] <fsphil> so it needs batteries and a charger
[16:20] <fsphil> why am I even working this out
[16:20] <fsphil> I'm not getting one
[16:20] <nigelvh> "not"
[16:20] <fsphil> yet
[16:21] <WillDuckworth> that dx site is surprisingly addictive
[16:23] <mattbrejza> its the free shipping that really makes it worse
[16:23] <mattbrejza> ( / better, whichever way were looking at this)
[16:23] <lz1dev> can i use it to burn ants?
[16:24] <fsphil> until they evolve
[16:24] <daveake> fsphil It also takes 3 26850 cells, for extra hitting-a-mugger-round-the-head-a-bility
[16:24] <daveake> 28650
[16:24] <daveake> or something
[16:25] <fsphil> interesting
[16:26] <wibble_> sorry for the oddball question here, but you guys might know... can anyone recommend a telescope for around £150-£200 ?
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[16:27] <mfa298> but I bet it doesn't have the same ability as the D-Cell maglight for the hitting-a-mugger-round-the-head-a-bility
[16:27] <fsphil> my little refractor was cheaper than that, got from Lidl of all places :)
[16:27] <Upu> I have one of those still with a CREE LED upgrade on it
[16:27] <Upu> stilll very bright
[16:27] <Upu> Not sure about the telescope wibble_
[16:28] <fsphil> CREE the noise people make when you point it at them?
[16:28] <fsphil> thankfully that doesn't summon jcoxon to google it
[16:28] <nigelvh> That would be fantastic
[16:28] <daveake> hah
[16:28] <Upu> lol
[16:29] <Upu> basically look at their latest most powerful LED
[16:29] <Upu> and then search for it on dx.com and there will be a torch round it
[16:29] <daveake> jcoxon could write a script to google for him ... http://lmgtfy.com/?q=cree
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[16:30] <fsphil> how'd you move my mouse???!11
[16:31] <fsphil> anyway, no lights yet. I've banned myself from buying gadgets
[16:31] <fsphil> except the nexus
[16:31] <fsphil> but I've re-banned myself after that
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[16:39] <nigelvh> What nexus did you get?
[16:44] <fsphil> 7+3g
[16:44] <fsphil> fingers crossed the screen is ok
[16:44] <nigelvh> Fancy, I got the 7 (wifi only) for christmas. I've been an iOS guy, so it's been a bit of an interesting experience working with android.
[16:45] <fsphil> since my phone is useless I thought I'd get something else with 3g
[16:45] <nigelvh> Do the screens have a history of being bad?
[16:45] <fsphil> I had a wifi version (16gb), and the screen would flicker during wifi activity
[16:45] <fsphil> got it replaced, and that did the same
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[16:46] <nigelvh> Hmm, haven't seen that with mine.
[16:46] <fsphil> there's a big thread about it on a forum, some people got it some didn't. a few people got it replaced and it didn't happen again
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[16:47] <nigelvh> Hmm
[16:47] anerDev (~anerDev@host254-81-dynamic.9-79-r.retail.telecomitalia.it) joined #highaltitude.
[16:47] <nigelvh> Well, hopefully your new one won't have that issue.
[16:47] <nigelvh> I've been enjoying mine. Just getting used to android. Things I like, things I don't. The usual.
[16:47] <fsphil> some suggestions where a faulty brightness sensor, or bad grounding
[16:47] <griffonbot> Received email: anerDev "[UKHAS] Re: where buy NTX2"
[16:48] <fsphil> apart from the flicker I loved it
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[16:48] <fsphil> and I'm someone who doesn't really like the pad form factor
[16:49] <nigelvh> The iPad is a little big for some things.
[16:49] <nigelvh> For reading for example, the 7 is much more reasonable. For watching a movie in bed, I love my iPad
[16:49] <daveake> It's a nice shape/size - largest that you'd want to take with you
[16:49] <fsphil> the price would put me off apple
[16:49] <daveake> MrsDave has a Tab 10 but that's for home use only really
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[16:50] <nigelvh> My company subsidized $300 of the ipad's price, so I couldn't very well say no at that point.
[16:50] <fsphil> nice
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[16:50] <nigelvh> So, now, not that I didn't have enough devices before, I've got my iPhone 5, my iPad 2, and my Nexus 7
[16:51] <anerDev> hi folks ? The Tim Zaman RTTY library, who know ? http://www.timzaman.com/?p=1053&lang=en
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[17:09] <eroomde> fsphil: an idea to promote peace and calm through the star gaving balloon
[17:10] <eroomde> attach a union jack to it
[17:10] <daveake> gazing?
[17:10] <daveake> good idea
[17:10] <eroomde> gazing*
[17:10] <daveake> I see no issues with that
[17:10] <eroomde> me neither
[17:11] <fsphil> could help along with the process by using hydrogen
[17:12] <eroomde> or just light a petrol bomb underneath it
[17:12] <eroomde> go hot-air
[17:14] <Laurenceb> kind of like this?
[17:14] <Laurenceb> http://tarheelfanuk.files.wordpress.com/2010/04/bnp_logo.jpg
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[17:22] <eroomde> that's not what I had in mind Laurenceb
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[17:30] <arko> morning
[17:30] <G0MJW-PC> at 17:30?
[17:31] <nigelvh> It's 09:30 here
[17:32] <x-f> your clocks are wrong - it's 19:30
[17:32] <nigelvh> You're just looking at the wrong time zone.
[17:33] <arko> haha
[17:34] <arko> pst is the gmt, you heard?
[17:34] <arko> you guys are now +8
[17:34] <nigelvh> 'MERIKUH
[17:34] <arko> we taking over like normal
[17:35] <nigelvh> Makes more sense that way anyway. You read from left to right, so start on the US west coast, and work east from there.
[17:35] <arko> hmm, that actually makes sense
[17:35] <nigelvh> Exactly
[17:35] <x-f> ..
[17:36] <griffonbot> Received email: Adrian Hicks "Re: [UKHAS] Re: where buy NTX2"
[17:37] <arko> i dont want to be back at work, i was just enjoying the weekend :/
[17:37] <nigelvh> Yeah... I had all of last week off, so this morning is sucking.
[17:37] <eroomde> arko: yo
[17:38] <eroomde> infact don't worry
[17:40] <arko> worry?
[17:40] <eroomde> nvm
[17:41] <nigelvh> Yep. Absoloutely nothing near you is going to explode...
[17:41] <eroomde> was after a video ref'd as belonging to jpl but couldn't find it
[17:41] <eroomde> but just found it
[17:41] <eroomde> tooth and rockey and using lisp for jpl robotics
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[17:42] <SP9UOB_Tom> hi all
[17:43] <arko> woah what? how have i not seen this video? eroomde link?
[17:43] <arko> morning SP9UOB_Tom
[17:43] <eroomde> it's just short and glossy really and doesn't mention lisp
[17:43] <eroomde> http://www-robotics.jpl.nasa.gov/videos/allVideo.cfm?Video=84
[17:43] <eroomde> not what i hoped
[17:43] <eroomde> but interesting anyway
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[17:49] <arko> hahaha oh yeah!
[17:49] <arko> tooth <3
[17:50] <arko> a long time ago i got to hold tooth
[17:52] <eroomde> woweee
[17:52] <eroomde> a relic
[17:52] <arko> last i recall it's behind glass
[17:52] <arko> forget which building
[17:52] <eroomde> my interest was piqued after reading the Lisp & JPL rant
[17:53] <arko> lol
[17:53] <eroomde> would be fun to get bidirectional comms with a balloon payload good enough for a REPL
[17:53] <eroomde> in some kind of baby scheme
[17:55] <Randomskk> "fun"
[17:55] <eroomde> for sure!
[17:55] <Randomskk> a repl on a balloon would be super cool
[17:56] <eroomde> in-flight debugging
[17:56] <Randomskk> hah
[17:56] <eroomde> no more 'oh it's doing dodgy gps... oh well'
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[17:56] <arko> hahaha
[17:56] <Randomskk> until you have to debug the repl and radio transceiver
[17:56] <arko> that would be epic
[17:56] <Randomskk> on the scale of things, having a working gps is easier :P
[17:56] <arko> as a proof of concept though
[17:56] <arko> that would be awesome
[17:57] <eroomde> you would have written the repl functionally so it would be PERFECT
[17:57] <eroomde> and DEFINITELY BUG FREE
[17:57] <eroomde> likewise the radio
[17:58] <arko> probably need some sort of checksum or something
[17:58] <eroomde> yeah it would have to be pretty bomb-proof
[17:59] <arko> otherwise goodbye comm
[17:59] <arko> heh
[18:00] <eroomde> but in designing the robustness you'd get for free the good practice of keeping everything as well insulated (from a software pov) as possible from everything else
[18:00] <eroomde> each module having only a very small but robust interface
[18:00] <arko> yup
[18:01] <arko> lots of checking and smart buffers
[18:01] <eroomde> zackly
[18:01] <arko> calling it now, this will happen in the next year or so
[18:01] <eroomde> in-flight repl?
[18:02] <arko> yeah
[18:02] <eroomde> they did it on galileo
[18:02] <eroomde> how hard can it be?
[18:02] <arko> :P
[18:02] <arko> maybe i can make my next hab do it
[18:02] <arko> that would be awesome
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[18:03] <eroomde> it would be pretty cool
[18:03] <eroomde> and it would catalyse rubust full duplex comms
[18:03] <eroomde> although you're in americah so that's easy
[18:05] <eroomde> ..ier
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[18:05] <arko> oh? why so? fcc laws?
[18:05] <eroomde> yup
[18:05] <arko> ah
[18:05] <eroomde> more downlink and uplink power
[18:06] <arko> 1000W muhahaha
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[18:06] <eroomde> that oughta do it
[18:06] <arko> the entire nation shall here the REPL
[18:06] <arko> i love the fcc laws here
[18:06] <arko> joking, but seriously
[18:06] <arko> my favorite is
[18:07] <arko> they ask you during the ham test too, was something like "your neighbor is complaining the tv looks terrible every now and then, your radio is causing it, who's fault is it?"
[18:07] <arko> answer is your neighbor because he's not well insulated/etc
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[18:08] <zyp> better get him a tinfoil hat
[18:08] <arko> ALIENS
[18:10] <arko> holy crap i just saw the rest of the jpl robotics video
[18:10] <arko> that SGI computer
[18:10] <arko> damn
[18:10] <eroomde> i watch a documentary by AY&Y on the history of anti ballistic missile yesterday
[18:10] <mfa298> arko: there's similar question in the uk, with a similar answer. But usually a recommendation of offering to help improve things by adding a simple filter
[18:10] <eroomde> was made in the late 70s or early 80s perhaps
[18:10] <eroomde> quite interesting
[18:10] <arko> ohhh
[18:11] <eroomde> especially the sprint missile which i've long thought is incredible
[18:11] <arko> that sounds interesting
[18:11] <arko> mfa hah yeah, same thing here
[18:12] <arko> eroomde: prepare yourself
[18:12] <arko> www.youtube.com/watch?v=_8aH-M3PzM0
[18:12] <arko> once you watch one, you may want to watch the rest
[18:12] <arko> really damn interesting computers from the 50s
[18:15] <eroomde> a computer cannot do this without MEN
[18:15] <eroomde> quite right too
[18:15] <Upu> lol
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[18:15] <arko> hahah
[18:15] <Upu> Needs more mr chumley warner
[18:16] <arko> "now ask your wife to make you a sandwich during our intermission"
[18:16] <DrLuke> guys guys guys, one link to upu's shop is enough :)
[18:16] <arko> im kept waiting for some 1950s sexism/racism
[18:16] <arko> i kept*
[18:17] <DrLuke> just formulate your question in such a ways that it starts with "sudo"
[18:17] <Upu> needs more links DrLuke :)
[18:17] <DrLuke> :P
[18:17] <Upu> this video is fascinating
[18:17] <Upu> reminds me of the lego antikythera mechanism
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[18:17] <arko> yeah
[18:18] <arko> it just gets better
[18:18] <arko> the first part is a bit slow
[18:18] <arko> but it quickly turns to mind blowing
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[18:21] <eroomde> like SICP which is my new year's resolution to bosh off
[18:22] <eroomde> maybe once i get back from 'murica
[18:22] <eroomde> i really need to see it through to the end
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[18:22] <eroomde> keep doing ch1 and then getting sideswiped by some crisis at work like trying to get a rocket built in half the time it should for a last minute scottish launch week, or something
[18:23] <eroomde> v frustrating
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[18:29] <mclane> has atlas been recovered?
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[18:30] Action: eroomde shrugs
[18:30] <Randomskk> har har
[18:32] <arko> seeing how it had about 2500m to go till it hit the ground, something tells me it's not going to be recovered
[18:32] <Randomskk> I'm amazed at how well it was tracked
[18:32] <Randomskk> really good floater
[18:33] <arko> yeah
[18:33] <gonzo_> the freq was exeptionally stable. Meant that my system stayed receiving all night
[18:33] <Randomskk> I guess it hit thermal equilibrium early on and stayed there
[18:34] <Randomskk> no change in altitude or operating conditions really
[18:34] <arko> it was a slow hab
[18:34] <eroomde> we need a new word for neutrually buoyant habs
[18:34] <eroomde> please
[18:35] <mclane> so why did it go up to 30 km in the middle of the night? after having floated already for some hours at 25 km?
[18:35] <Randomskk> why, does floater have other connotations for you?
[18:35] <arko> yeah i keep thinking shit floating in a toilet
[18:35] <Randomskk> haha
[18:35] <Randomskk> yea I assume we all do
[18:35] <arko> "aww dud you left a floater"
[18:35] <arko> in this channel its like "ohh dude, nice floater"
[18:36] <arko> :P
[18:36] <arko> damn it, now im laughing at work in a quiet office >_<
[18:36] <Randomskk> always a sure sign of slacking off
[18:36] <Elijah_> hahaha
[18:37] <Elijah_> I think it's a nice humerous twist!
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[18:37] <eroomde> that also sounds like some kind of abdominal complaint
[18:44] <cuddykid> daveake / Upu / other hydrogen people: what is the correct regulator? I know you've told me this before, forgot to write it down. I'll write it down/buy it this time :)
[18:44] <Randomskk> http://habhub.org/zeusbot/search.html :P
[18:44] <SpeedEvil> it's likely that atlas could be narrowed down to a 250m diameter eclipse
[18:44] <SpeedEvil> ellipse
[18:45] <cuddykid> Randomskk: didn't realise there was a search func
[18:45] <SpeedEvil> but, finding it is then terrain dependant
[18:45] <Upu> BOC 86200 H2
[18:45] <Randomskk> depends if it landed and stayed still vs blew about on the ground, too
[18:45] <Upu> err
[18:45] <Upu> BOC Series 8500
[18:45] <SpeedEvil> in a good environment, you might be able to find it in 30s
[18:45] <Upu> part 41491
[18:45] <cuddykid> cheers Upu
[18:45] <SpeedEvil> others, days
[18:45] <Upu> See
[18:45] <Upu> http://www.boconline.co.uk/en/products-and-supply/industrial-catalogue/index.html
[18:45] <Upu> page 38
[18:46] <cuddykid> ah yes, thanks
[18:47] <cuddykid> Upu: and nothing else is needed apart from being careful? :)
[18:48] <eroomde> http://www.youtube.com/watch?v=MecpblicnBU
[18:48] <eroomde> dude can fiddle
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[18:54] <arko> wow
[18:54] <arko> damn
[18:54] <arko> dude can totally fiddle
[18:56] <Upu> I think thats it
[18:56] <Upu> we decided a flash back arrestor wasn't needed as we weren't putting compressed oxygen in there / welding with it
[18:57] <cuddykid> good
[18:57] <Upu> but do take some advice of others
[18:57] <cuddykid> certainly
[18:57] <Upu> the BoC guy suggested the flash back wasn't entirely necessary
[18:57] <cuddykid> do you just call up BoC to order the reg?
[18:58] <Upu> Well I have an account with them so yeah
[18:58] <cuddykid> ditto, so should be ok
[18:58] <Upu> just call your local branch
[18:58] <Upu> you will need to order the H2 as generally they don't keep it in
[18:59] <eroomde> i agree flashback not necessary. there is nothing really to do any flashing back
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[19:00] <Upu> oh use an Acetyline tube
[19:00] <Upu> selling
[19:00] <Upu> spelling...
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[19:00] <SpeedEvil> https://dl.dropbox.com/u/25683105/Pictures/Unsorted/PANO_20130107_193801.jpg
[19:01] <Upu> Acetylene
[19:01] <SpeedEvil> someone's photosphere
[19:01] <SpeedEvil> which amused me
[19:01] <Upu> ask daveake which tube he got
[19:01] <jcoxon> evening all
[19:01] <cuddykid> cool, thanks Up
[19:01] <cuddykid> *Upu
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[19:02] <Upu> evening jcoxon
[19:02] <G0MJW-PC> What is this? A Dixon of Dock Green revival?
[19:03] <mclane> what is special with the tubes for hydrogen?
[19:03] <Upu> low permability
[19:04] <Upu> When using hydrogen, the correct hoses should be used to resist hydrogen permeation.
[19:04] <daveake> cuddykid I got 10mm acetylene hose
[19:04] <mclane> for hydrogen - being a small molecule?
[19:04] <number10> evening jcoxon
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[19:04] <daveake> narrower will be fine probably
[19:04] <SpeedEvil> I guess it only matters at high pressures
[19:04] <Upu> I'm going to make a H2 detector at some point
[19:04] <SpeedEvil> Upu: flammability of 4% in air
[19:04] <cuddykid> daveake: did you get that from box?
[19:04] <SpeedEvil> which is really a lot
[19:05] <Upu> right afk
[19:05] <cuddykid> daveake: boc
[19:05] <daveake> Amazon
[19:05] <griffonbot> Received email: mclane "[UKHAS] Re: Best antenna for receive signal from NTX2"
[19:05] <daveake> Any welding shop will have it
[19:05] <cuddykid> I'll get some of that then too - thanks
[19:05] <eroomde> Upu: a lighter
[19:05] <cuddykid> lol
[19:05] <number10> jcoxon we have a french engineer at work - ATLAS landed within 15km of his families home
[19:05] <daveake> And get yourself a spanner :)
[19:05] <SpeedEvil> do budgies detrect hydrogen?
[19:06] <number10> I should say estimated landing
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[19:07] <arko> http://mars.jpl.nasa.gov/msl-raw-images/msss/00150/mhli/0150MH0075001001E1_DXXX.jpg
[19:09] <eroomde> the drill?
[19:09] <jcoxon> number10, awesome
[19:09] <jcoxon> it might still be txing
[19:09] <arko> nah
[19:09] <arko> brush
[19:09] <arko> heh, the drill
[19:09] <arko> thats gonna be interesting when they use it
[19:10] <cuddykid> davek
[19:10] <cuddykid> can't type today
[19:11] <cuddykid> daveake: what's the price for H2 cylinder? iirc it was around £50 for 7m3?
[19:11] <eroomde> 'the brush'
[19:11] <daveake> £44 + VAT + collection fee
[19:11] <eroomde> i'm not sure it's gonna be able to make mars less dusty
[19:11] <cuddykid> not bad
[19:11] <daveake> 7.2
[19:12] <daveake> i.e. 2 normal flights
[19:12] <cuddykid> excellent
[19:12] <cuddykid> should help bring the cost down a bit in the long run
[19:12] <arko> eroomde: hah!
[19:12] <arko> mars is a weird place though
[19:13] <arko> this thin layer is everywhere
[19:14] <arko> this is how one can imagine drilling http://www.youtube.com/watch?v=Pb8riJ_mmio
[19:15] <arko> eroomde: have you seen the video in this page? http://www.space.com/18834-mars-rover-curiosity-drill-break.html
[19:16] <eroomde> willdo in a sec
[19:16] <eroomde> just having another musical infusion
[19:16] <eroomde> this time a pinao virtuoso
[19:17] <eroomde> piano*
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[19:28] <fsphil> shorting out a nuclear powered rover, sounds about as bad as crossing the streams
[19:30] <arko> hahaha
[19:35] <Hix> That's quality :D
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[19:39] <Hix> Looking at chematic for the logic shifter the left side is a divider should R9 be 20K? http://i.imgur.com/EkNVx.png
[19:39] <Hix> also doesn't a divider have 3 resistors? #confuzzled
[19:40] <nigelvh> A basic resistor divider has two resistors.
[19:40] <Hix> And I'm assuming the BS138 is converting 3v3 to 5V
[19:40] <Hix> ah ok, cheers. I'm not all that hot with theory yet :)
[19:42] <nigelvh> I'm also not certain what the goals or where the inputs of this schematic are, so I'm not of much help, but that device appears to just be a mosfet.
[19:43] <nigelvh> And yes, the labelling of the resistor divider appears to not match what the results would be.
[19:44] <Hix> TX5V is Arduino RX | TX3v3 is uBlox TX | RX5V Arduino TX | RX3v3 uBlox RX
[19:44] <Hix> I'm thinking. my best guess at this so far
[19:45] <nigelvh> Is this your schematic or someone else's?
[19:45] <Hix> it's half of a sparkfun level shifter. I just need a single channel shift from 5V to 3v3
[19:46] <nigelvh> Ok, if you're just trying to get a 3.3V ublox to work with a 5v arduino, you don't need all this.
[19:46] <Hix> and obviously from 3v3 to 5V too
[19:47] <Hix> ok, whats best plan K.I.S.S is better I always think
[19:47] <daveake> You just need the divider to go from Arduino Tx to GPS Rx
[19:47] <nigelvh> The 3.3V output the uBlox puts out is high enough to register as a high on a 5V arduino.
[19:47] <daveake> The other way just a bit of wire
[19:48] <nigelvh> So you only need to bring down the 5V output for the 3.3V uBlox
[19:48] <nigelvh> So just a resistor divider
[19:48] <Hix> oh cool so arduino can accept digital 3v3 signals on serial? for HW and SW Serial?
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[19:48] <daveake> yes
[19:48] <Hix> Nice - this is easier than i thought
[19:48] <daveake> yup :)
[19:48] <nigelvh> Yes, a 5V arduino has a high/low threshhold of something like 2.5V so anything above that still counts as a high level
[19:48] <Hix> we likee
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[19:49] <daveake> That pot divider is 10k/10k. I'll take issue with that. The upper resistor should be a lower value.
[19:49] <nigelvh> Yes
[19:50] <daveake> 4k7 will do it
[19:50] <nigelvh> Also, bear in mind you can't power a uBlox from the 3.3V line an arduino supplies. You need a separate 3.3V regulator
[19:50] <daveake> He has one IIRC :)
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[19:51] <nigelvh> Then you're all good.
[19:55] <Hix> You got a 3v3 reg in there
[19:55] <Hix> But now I'm thinking that if i bang a 328p-pu in there I can get rid ov 5V totally
[19:55] <Hix> run the whole thing off 3v3
[19:56] <nigelvh> That is another option, though keep in mind you can't reliably run a 3.3V arduino at 16MHz, you have to move down towards 8MHz
[19:56] <daveake> Now you're thinking :)
[19:56] <nigelvh> So, when using the arduino environment, make sure to choose one of the 8MHz clocked boards to get the proper timing.
[19:57] <daveake> mini pro 8MHz will do it
[19:57] <Hix> oh pants. probably stick to 5v then for the first attempt. I've got regs to it's easy to have 5v and 3v3 on board
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[19:58] <Hix> so at 5v 16MHz is all good?
[19:58] <nigelvh> Yes
[19:58] <Hix> for 328
[19:58] <Hix> win!
[19:58] <nigelvh> There's a speed vs. voltage graph in the datasheet.
[19:58] <Hix> Just need to learn C now really then it's all plain sailing #sarcasm
[19:58] <daveake> 8MHz is plenty fast enough for a tracker
[19:58] <nigelvh> Yep
[19:59] <nigelvh> Saves power too
[20:00] <Hix> ok 3v3 it is then. gets rid of any level issues with ublox then. correct
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[20:01] <Hix> and 8MHz
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[20:01] <nigelvh> That would work
[20:01] <Hix> so it'll run off 3 lithiums
[20:01] <Hix> @1.5v
[20:01] <Hix> with the reg 3v3
[20:01] <Hix> of course
[20:02] <daveake> yes, if you choose a good reg
[20:02] <nigelvh> Yes. Though I'd recommend getting a low drop out 3.3V regulator
[20:02] <Hix> sec
[20:02] <daveake> The one on the mini pro is 0.2V dropout @100mA
[20:02] <daveake> Ask Upu - he can recommend devices
[20:03] <jcoxon> i use the mcp1700 range of ldo
[20:03] <Hix> LD117AS33TR is what i specced sot23
[20:03] <Upu> moi ?
[20:03] <Hix> bonsoir
[20:04] <Upu> Most TI or Linear stuff is good
[20:04] <nigelvh> That's not going to be a good regulator
[20:04] <Upu> MCP1700 looks good
[20:04] <Upu> max input 6v
[20:05] <daveake> Don't use 4 AAs then!
[20:05] <nigelvh> The dropout is around 1.1V, so it's going to drop out at 4.4V
[20:05] <Upu> MCP1700 drop out 0.2V
[20:05] <nigelvh> That's a much better one
[20:05] <Hix> http://uk.rs-online.com/web/p/low-dropout-voltage-regulators/7696065P/?searchTerm=769-6065P&relevancy-data=636F3D3126696E3D4931384E525353746F636B4E756D6265724D504E266C753D656E266D6D3D6D61746368616C6C26706D3D5E5C647B337D5B5C732D2F255C2E2C5D5C647B332C347D5B4161426250705D3F2426706F3D313426736E3D592673743D52535F53544F434B5F4E554D424552267573743D3736392D36303635502677633D4E4F4E4526
[20:05] <Hix> oops!
[20:06] <Upu> TPS76650D
[20:07] <Upu> drop out 140mV 250mA max input 10v
[20:07] <Hix> MCP1700 only 250mA
[20:07] <Upu> what are you running off it a heater ?
[20:07] <Hix> that enough for arduino and ublox
[20:07] <Hix> with 2 leds
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[20:07] <Hix> doesn't sound it
[20:08] <Upu> 250mA is more than enough
[20:08] <Hix> oh, ok
[20:08] <Upu> The TPS76650D is what I've used in the past
[20:08] <Upu> its what the pads were for on the Badgeboard
[20:09] <Upu> 3.3v : http://uk.farnell.com/texas-instruments/tps76633d/v-reg-ldo-0-25a-3-3v-76633-soic8/dp/8461422?Ntt=TPS76633D
[20:09] <nigelvh> 60ish mA for the uBlox, maybe 20ish mA for the ATmega, 10-20ish for the leds, you've got lots of room.
[20:09] <daveake> Your tracker won't exceed 150mA, and will be about half that once the GPS has a lock
[20:09] <Hix> gonna say that was 5v
[20:09] <Hix> 76650D
[20:09] <nigelvh> I've used the 76633 and it works well.
[20:10] <Hix> ok - that'll do then
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[20:10] <Upu> rated to -40'C as well
[20:10] <Upu> which is worth checking when speccing up components
[20:10] <Hix> http://uk.rs-online.com/web/p/low-dropout-voltage-regulators/5171387/
[20:11] <griffonbot> Received email: James Coxon "Re: [UKHAS] Launch Today! 12:00 GMT from Suffolk"
[20:11] <Upu> its in the texas.lbr as well under TPS766XX or something
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[20:12] <Hix> ok, what about resistors and cap values. Anyone got a shematic, he-he still loving that word
[20:12] <Upu> go download the badgeboard its all on there
[20:12] <nigelvh> The datasheet should have an example as well
[20:13] <Hix> badgeboard? On wiki?
[20:13] <Upu> yeah and follow the layout in the data sheet if there is one
[20:13] <Upu> http://ukhas.org.uk/general:ukhasbadgeboard
[20:13] <Hix> ok, cheers. Oh yeah. from the conf
[20:13] <Hix> ta muchly
[20:14] <Upu> its in Ava.lbr actually
[20:14] <Hix> ok cheers
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[20:14] <Hix> I've specced 0805 parts as not brave enough for 0603
[20:15] <Upu> Duplo vs Lego
[20:16] <nigelvh> The jump from 0805 to 0603 isn't huge, the big jump for me was from 1206 to the smaller sizes.
[20:16] <Hix> kin-ell thinking about it - I've had a fairly in depth tech discussion about specs and components and I prety much understand it all these days. Grey matter still got life in it
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[20:16] <Upu> You can put 0603 on 0805 pads
[20:16] <nigelvh> If you're good you can also put 0805 on 0603 pads.
[20:16] <Hix> gonna stick with 0805 for the first tracker. run before walk an all that
[20:16] <Upu> yep that too
[20:16] <nigelvh> I've done that once.
[20:17] <Upu> I once put 0603 on through hole pads for cuddykid :)
[20:17] <fsphil> I've soldered 0603 stuff, it's not that bad
[20:17] <cuddykid> :)
[20:17] <cuddykid> Upu: the new boards should be with you this week I would think - left HK yday apparently
[20:17] <Upu> 24th cuddykid
[20:18] <nigelvh> My first tracker was all through hole, so that you're doing surface mount at all hix is a good bit of progress.
[20:18] <mattbrejza> whats a right pain are 0805 resistor networks, even worse then 0.4mm ICs
[20:18] <fsphil> my first two flight computers where stripboard
[20:18] <Hix> one samll step for man....
[20:18] <fsphil> with a huge 40-pin atmega644p
[20:18] <Hix> and all the destroyed phones at home these days :D
[20:18] <cuddykid> Upu: yep, according to the HK post tracking system they left the country yday (so I guess they're on their way :D)
[20:18] <Upu> I'd ignore the HK tracking
[20:18] <Hix> I'm using PDIP Atmega, so not that brave really
[20:19] <Upu> its not tracking
[20:19] <Hix> sell HK some badgeboards?
[20:19] <Upu> hehe uses a TQFP
[20:19] <fsphil> tqfp is nicer
[20:19] <Upu> by a mile
[20:19] <nigelvh> Yes
[20:19] <Upu> Hix do it
[20:19] <Upu> if you get stuck I'll solder it for you but you won't get stuck as its easy
[20:19] <daveake> Surface mount is going to be one giant lupe for me
[20:19] <fsphil> I'm using up some of my old pdip 644p's now but if I was starting something new I'd go smd
[20:19] <cuddykid> true Upu
[20:20] <Hix> see what you did there daveake
[20:20] <daveake> ;D
[20:20] <nigelvh> My second tracking board went from the 28pin dip to a 100pin tqfp.
[20:20] <fsphil> nice
[20:20] <Hix> TQFP without paste and mask?
[20:20] <Upu> yeah easy
[20:20] <nigelvh> yep
[20:20] <fsphil> although I stlil want to do a 6510-based board
[20:20] <Upu> really easy
[20:20] <fsphil> i<>l
[20:21] <Upu> you literally just touch each pin with the smallest amount of solder on the end of your tip
[20:21] <Hix> I'll look at datasheet
[20:21] Nick change: vhrisstubbs -> chrisstubbs
[20:21] <nigelvh> Yeah, I think the TQFP is the 328P-AU
[20:21] <Upu> Sparkfun -> ATMEGA328
[20:21] <Hix> but I like PDIP - it's mechanical looking [comforting]
[20:21] <Upu> TQFP
[20:21] <Hix> k
[20:22] <fsphil> you know you want to
[20:22] <Hix> I'm not putting solder on my tip :/
[20:22] <Upu> be brave :)
[20:22] <Hix> ouch
[20:22] <Hix> in for a penny then?
[20:23] <Hix> TQFP will be out of date when I can code it all :)
[20:23] <Upu> should see the step ups we are soldering these days
[20:23] <fsphil> it'll be all BGA's by then ;)
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[20:23] <nigelvh> Yeah, the step ups are more of a pain.
[20:23] <nigelvh> I used hot air to do mine.
[20:23] <Upu> https://dl.dropbox.com/u/63720513/Images/PCB%20Pictures/IMG_0872.JPG
[20:24] <nigelvh> Exactly
[20:24] <Upu> I do them by hand
[20:24] <Upu> then hit them with hot air just to check the bottom pad is done properly
[20:25] <Hix> why is solderpaste so expensive?
[20:25] <nigelvh> Yeah, I got solder on all the pads by hand, then hot air'd it into place.
[20:25] <Hix> sorry sodder ;p
[20:26] <Upu> Have you see the Curious Inventor How to SMD Solder Video ?
[20:26] <KT5TK_QRL> Hix: You just need tiny ammounts of solderpaste
[20:26] <Upu> http://www.youtube.com/watch?v=3NN7UGWYmBY
[20:26] <Upu> Evening/Afternoon KT5TK
[20:26] <jarod> Upu whats that?
[20:26] <Upu> Surface Mount Soldering 101
[20:27] <fsphil> I put a tiny drop of solder paste onto each pad on my first board
[20:27] <KT5TK_QRL> I simply use a needle to spot tiny drops on the pads
[20:27] <Upu> worth watching
[20:27] <fsphil> and that was still too muc
[20:27] <fsphil> much
[20:27] <Upu> I don't like paste
[20:27] <Upu> maybe with a proper stencil
[20:27] <fsphil> it's worth it for the oven dinging
[20:27] <Upu> lol
[20:28] <fsphil> if I do a board with lots of parts, I'll get a stencil
[20:29] <Hix> http://www.pcb-soldering.co.uk/aoyue-t-si-conical-soldering-iron-tip.html ok for this kind of work? They're just round the corner so can get on and practice
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[20:29] <Upu> its hard to say
[20:29] <Upu> generally you want one that holds a little solder at the end
[20:31] <Hix> conical or chisel better?
[20:31] <Upu> personal preference
[20:33] <Hix> Right - board redisgn rev 345 afk. cheers for pointersw
[20:33] <Hix> pointers
[20:33] <Upu> only 345 ? :)
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[20:53] <Hix> what track size is best for TQFP?
[20:53] <Hix> 16?
[20:53] <Hix> and 3v3 24?
[20:54] <nigelvh> Largest that is reasonable
[20:56] <Hix> looks like 0.016 then. can i make 3v3 fatter and have local 0.016 to 328PU?
[20:57] <nigelvh> Yep
[20:57] <Hix> ok cool
[20:57] <Hix> and can i use my arduino as ISP to connect to ICSP headers to upload?
[20:58] <Hix> once I've burned bootloader?
[20:58] <nigelvh> You'll need to use the arduino as ISP to burn the bootloader, then you can use the serial pins and the reset button to program like you would normally
[20:58] <Hix> bugger - batt dead. logs for follow ups it is. Cheers guys.
[20:59] <Upu> ping radim_OM2AMR is Slovak in Slovak Slovák ? :)
[21:00] <radim_OM2AMR> evening upu :-)
[21:00] <Upu> evening
[21:01] <Upu> http://ukhas.org.uk/start
[21:01] <radim_OM2AMR> :-) great, but Slovensky is the right word :-)
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[21:01] <Upu> suspected as much thx
[21:02] <radim_OM2AMR> Slovak is like English Men :-)
[21:02] <Upu> ah thanks
[21:02] <Upu> Fixed
[21:02] <radim_OM2AMR> Great, thanks, I forgot to change it :-|
[21:02] <Upu> nps
[21:03] <Upu> thanks for taking the time to translate it
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[21:03] <radim_OM2AMR> no problem Upu, I hope it will help sometimes during long floater flights
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[21:21] <jcoxon> ping eroomde
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[21:24] <Lunar_Lander> hello
[21:24] <mclane> hi radim, do you know some cech hams?
[21:24] <mclane> sorry I mean czech
[21:25] <mclane> since I live not so far away and winds typically blow from the west, I expect some of our future flights to end up there
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[21:36] <SP9UOB_Tom> hi radim_OM2AMR :-)
[21:36] <SP9UOB_Tom> radim_OM2AMR: thanks for video :-)
[21:37] <radim_OM2AMR> hi tomek, ohh, from unsuccesful chase...
[21:38] <SP9UOB_Tom> radim_OM2AMR: im hobe You dont get a flu
[21:38] <SP9UOB_Tom> radim_OM2AMR: im hope You dont get a flu
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[21:38] <SP9UOB_Tom> radim_OM2AMR: when do You launch? 15.01?
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[21:38] <radim_OM2AMR> no, I was prepared, severals layers of clothes :-)
[21:39] <radim_OM2AMR> yes, exactly, but 8:30 CET according CAA :-(
[21:40] <mclane> hi radim_OM2AMR, do you know some czech hams? Since I live not so far away (in Germany) and winds typically blow from the west, I expect some of our future flights to end up there
[21:41] <SP9UOB_Tom> radim_OM2AMR: cruelly early
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[21:41] <radim_OM2AMR> hi mclane, yes, i know some of then from ham band and the internet, so in case you will fly over CZ, I can ask them for help
[21:42] <SP9UOB_Tom> radim_OM2AMR: im planning to be there... but i must wake at 3am to get there on time :-(
[21:42] <radim_OM2AMR> Tomek many thanks in advance, I let you know the day before
[21:42] <radim_OM2AMR> or I can call you when I arrive on the place :-D
[21:43] <SP9UOB_Tom> mclane: Radim is very helpfull :-) VERY :-)
[21:43] <mclane> thanks radim_OM2AMR; once we are prepared for the next launch, I will try to contact you then
[21:44] <radim_OM2AMR> Oh tomek , please don not overprice me :-) I just like any other here or on the band :-)
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[21:44] <mclane> SP9UOB_Tom: I followed your last adventure on the spacenear tracker; hope your next flight will be not hampered by gps troubles ;-)
[21:45] <SP9UOB_Tom> radim_OM2AMR: :-)
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[21:45] <radim_OM2AMR> I'm just creating the new box for STS-2, it will be heavy payload now...
[21:45] <SP9UOB_Tom> mclane: tracker is ready, im building capsule now - i have some spare 100g balloons and helium - so launch in 2 weeks
[21:46] <SP9UOB_Tom> radim_OM2AMR: how heavy?
[21:46] <radim_OM2AMR> I hope under 1500g
[21:47] <SP9UOB_Tom> radim_OM2AMR: phew! ;-) RedbullStratos was 900 kg ;-)
[21:47] <radim_OM2AMR> yea, I know :-)
[21:47] <SP9UOB_Tom> ...if i recall correctly ;-)
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[21:50] <eroomde> arko: thanks for thosre links
[21:50] <eroomde> interesting
[21:51] <arko> oh, which ones?
[21:51] <arko> i can't remember :P
[21:56] <arko> i wish had demoscenes in the us :(
[21:56] <arko> you lucky europeans
[21:56] <Upu> I knew you could do maths with gears but those videos are just wow
[21:56] <arko> yeah
[21:57] <arko> the curved drums are crazy
[21:57] <arko> 3 variable input
[21:58] <fsphil> someone doing mechanical computing?
[21:58] <Upu> oh watch the videos fsphil
[21:59] <Upu> as arko said number 1 is ok but then it gets wow you can do that with cogs ?
[21:59] <arko> www.youtube.com/watch?v=_8aH-M3PzM0
[21:59] <arko> yeah, it's damn interesting
[22:03] <chrisstubbs> Quick question: on a 5v arduino/ntxt/ublox setup, should i be looking at flying with 4xaa or 6xaa batteries?
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[22:11] <eroomde> 'drinkin someone else's piss... it's not my cuppa tea'
[22:11] <eroomde> channel 4 never let's you down
[22:12] <Lunar_Lander> lol what show?
[22:13] <eroomde> i'm not sure i want to get you hooked onto it
[22:13] <Lunar_Lander> ok
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[22:15] <eroomde> "Maybe the professional amateur radio guys in this mailing list can give more detailled / more professional advise.
[22:15] <eroomde> er
[22:15] <SP9UOB_Tom> professional amateur ;-)
[22:16] <SP9UOB_Tom> Thats me ;-)
[22:17] <arko> certified professional amateur
[22:18] <Lunar_Lander> where is that sentence?
[22:18] <Lunar_Lander> mailing list?
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[22:19] <Lunar_Lander> ah found it xD
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[22:29] <SP9UOB_Tom> night all
[22:30] <arko> http://www.thinkgeek.com/product/f29d/#tabs
[22:30] <arko> night
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[23:07] <arko> yall better watch "Stargazing Live"
[23:09] <fsphil> plan to
[23:09] <arko> they are doing a screening here tomorrow
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[23:09] <fsphil> ooh it's on there?
[23:10] <fsphil> it lasts for three nights
[23:10] <arko> yeah
[23:10] <arko> noon to 1pm at jpl
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[23:10] <fsphil> they do local events too, I'm heading to one on thursday
[23:11] <arko> nice
[23:11] <arko> i wish we had stuff like that for public
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[23:14] <griffonbot> Received email: Roberto Zinelli "[UKHAS] DL-FLDIGI question"
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[23:22] <OZ1SKY_Brian> gn everyone
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[23:24] <chrisstubbs> Night guys
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[00:00] --- Tue Jan 8 2013