highaltitude.log.20140621

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[07:28] <PE2G> PYSY is up
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[07:36] <malgar> when will be launched PYSY?
[07:38] <PE2G> PYSY is up
[07:38] <PE2G> No SSDV
[07:41] <malgar> oh! is up!
[07:43] <malgar> PE2G: when should it burst? just to understand how much time I have to reach my tracking location :)
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[07:46] <PE2G> malgar: They're aiming for >40km, so you'll have a good chance of rx
[07:47] <malgar> PE2G: 2 hours?
[07:49] <PE2G> malgar: At this ascent rate, it reaches 40k in about 4 hrs
[07:49] <PE2G> No garantees of course
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[07:50] <malgar> I will try to catch B-60 also
[07:50] <PE2G> Cool
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[07:56] <SpeedEvil> malgar: quadcopter with a net?
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[08:02] <malgar> SpeedEvil: no.. a big butterfly catcher with a very lon pole
[08:02] <malgar> long
[08:03] <SpeedEvil> I have a 6m long bit of bamboo.
[08:03] <SpeedEvil> I'm growing it.
[08:03] <malgar> stratospheric bamboo
[08:04] <SpeedEvil> Extrapolating, it will hit 40km in about 40 years.
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[08:05] <malgar> the starting point for a space elevator.. Scientists are thinking about carbon nanotubes.. but your bamboo will win
[08:05] <nats`> [10:03:57] <SpeedEvil> Extrapolating, it will hit 40km in about 40 years. <= it works with babies too :D
[08:05] <nats`> babies powered space elevator :p
[08:06] <malgar> lol
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[08:06] <cm13g09> Slightly OT question..... What are people's experiences of soldering SSOP packages....
[08:06] <cm13g09> (yay - FTDI chips!)
[08:06] <SpeedEvil> very easy
[08:07] <cm13g09> SpeedEvil: go on....
[08:07] <cm13g09> (they look like they shouldn't be easy....)
[08:07] <SpeedEvil> https://www.youtube.com/watch?v=b9FC9fAlfQE
[08:07] <SpeedEvil> Drag soldering
[08:07] <cm13g09> ah, that trick
[08:08] <SpeedEvil> 15:40 for the actual SSOP
[08:09] <SpeedEvil> Though watch the whole video if you're new to it
[08:10] <nats`> cm13g09 in general with a good iron you just have to flood the pins
[08:10] <nats`> and with solder wick you remove the excess
[08:11] <cm13g09> ok
[08:11] <nats`> be carefull anyway it only works on pcb with soldermask
[08:11] <nats`> if your pcb is homemade without soldermask it'll not work
[08:11] <cm13g09> sure
[08:11] <nats`> (or at least it'll be harder)
[08:11] <cm13g09> it'll be a Hackvana-special
[08:12] <nats`> I don't know those
[08:12] <SpeedEvil> https://www.youtube.com/watch?v=pdGSFc7VjBE
[08:12] <nats`> but like SpeedEvil said it's easy
[08:12] <SpeedEvil> nats`: It's slightly harder without soldermask.
[08:12] <SpeedEvil> But - braid works well
[08:12] <cm13g09> fairly sure there's soldermask on Mitch's boards...
[08:12] <SpeedEvil> The last video is an alternative way of doing it - with paste
[08:13] <SpeedEvil> though probably not appropriate for ones
[08:13] <cm13g09> mm
[08:13] <cm13g09> cheers nats`, SpeedEvil
[08:13] <nats`> there is silkscreen so yes there is soldermask
[08:13] <nats`> :)
[08:13] <nats`> paste become harder for a beginner I think :)
[08:13] <cm13g09> yeah
[08:13] <cm13g09> "Never have too much flux" lol
[08:14] <nats`> tlaking about paste if one day you decide to use it
[08:14] <nats`> take leaded one !
[08:14] <cm13g09> nats`: if I had the choice on that....
[08:14] <nats`> ROHS paste is the nightmare of the devil
[08:14] <nats`> Diablo himself can't sleep when thinking about rohs paste :p
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[08:17] <cm13g09> I must add that matters are not helped on this board by it being the same size as a 2xAA battery holder lol
[08:17] <nats`> cm13g09 a really important things when assembling PCB is to have themreally fixed
[08:18] <nats`> you really don't want it to move when holding the part
[08:18] <nats`> sometime a piece of this paste used to fix stuff on wall like poster
[08:19] <nats`> a magnifier is welcome (a desk one is better)
[08:20] <cm13g09> mm
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[08:29] <cm13g09> cheers SpeedEvil, nats`
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[08:36] <Maxell> The frequency of the DC-DC converter that powers the lipocharger goes up as soon as there is more syn
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[08:36] <mikestir> cm13g09: get yourself a flux pen
[08:36] <Maxell> [sun intensifies] .... [the pitch of the dc-dc becomes higher]
[08:43] <cm13g09> mikestir: will do :)
[08:44] Action: cm13g09 is about to please the Hackvana staff.... with a potentially large number of ordered
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[08:46] <mfa298> sounds like you might need a trip to argos and get an oven as well.
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[09:11] <Steve8jzt> l
[09:12] <PE2G> OM1ATS, do you have the precise freq for PYSY pls?
[09:12] <Steve_G0TDJ> Steve8jzt: !!!
[09:13] <Steve8jzt> Morning Steve
[09:13] <Steve_G0TDJ> Hiya Mate. Lots of launches later
[09:13] <Steve8jzt> Yep looking forward to following some
[09:14] <Steve_G0TDJ> Coolio. I'm not sure which one/s I'll track. I normally go for the ones with less trackers.
[09:14] <Steve8jzt> I will go for what I can hear
[09:15] <Steve_G0TDJ> Well, you're better placed than me :-)
[09:16] <Steve8jzt> perhaps but shack is a long way from the wifi connection so can be painfully slow at times
[09:16] <Steve_G0TDJ> Oh I see. You need a repeater
[09:17] <Steve8jzt> yes but my box can't be played with so upgrade really required
[09:17] <Steve_G0TDJ> OK
[09:18] <Steve_G0TDJ> First launch will be around 10:00UTC I gather
[09:18] <Steve8jzt> ok
[09:20] <Steve_G0TDJ> I got the new minDUINO v1.5 boards through yesterday. Built and tested one. Worked fine. v1.6s should arrive today with a bit of luck.
[09:21] <Steve8jzt> Brill will you bring up the club on next meet
[09:21] <Steve_G0TDJ> Yes, I'll bring both.
[09:21] <Steve8jzt> great work
[09:22] <Steve_G0TDJ> I'm playing with the idea of adding a prototyping area. If so, that will be the last itteration
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[09:23] <PE2G> A few greens from PYSY at 613 km -0.5 deg
[09:24] <Steve8jzt> You'll have to explain that a bit more next meet
[09:25] <f0eqe> the precise freq for PYSY pls ???
[09:25] <Steve_G0TDJ> Simply, it's a stripped down Arduino
[09:26] <Steve_G0TDJ> One of these without the bells and whistles: http://www.liquidware.com/system/0000/3648/Arduino_Uno_Angle.jpg
[09:27] <Steve_G0TDJ> All the design files are on this page: http://www.projectavr.com/minduino-v1-04/
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[09:28] <Steve8jzt> ok will have a look later
[09:28] <Steve_G0TDJ> RGR
[09:29] <f0eqe> the precise freq for PYSY pls ???
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[09:30] <Steve_G0TDJ> f0eqe: The announcememt on the Google Group says 434.550 and 434.650
[09:30] <f0eqe> TNX
[09:30] <d0wnl0rd> And the right one is 434650
[09:30] <Steve_G0TDJ> Cheers d0wnl0rd
[09:31] <f0eqe> 434.658
[09:31] <d0wnl0rd> Hi there, thanks to al listeners, much appreciated, as we were a little bit late on the track
[09:31] <PE2G> PYSY 434.659.1 center 1100 Hz
[09:32] <PE2G> http://s18.postimg.org/axwhheauh/Screen_21_06_14_11_26_12.png
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[09:36] <d0wnl0rd> Is there any way to influence the predicted burst altitude? Seems rather low...
[09:36] <d0wnl0rd> Speaking about the on spacenear.us of course
[09:37] <Steve_G0TDJ> I believe it can be dealt with on the back end. Upu can you direct d0wnl0rd
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[09:40] <Steve_G0TDJ> ATBGH on the map
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[09:44] <DL7AD_mobile> Hi
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[09:45] <DL7AD_mobile> Thats nasty https://www.dropbox.com/s/6mtzp5lzz2b71o4/20140620_114021.jpg
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[09:48] <Steve_G0TDJ> Steve8jzt: I was looking at the wrong announcement - Next launch is at 10:30(ish) UTC
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[09:49] <malgar> receiving pysy from italy
[09:49] <malgar> very strong signal
[09:49] <malgar> green strings :)
[09:50] <Steve8jzt> > G0TDJ ok I'm in and out the shack at the moment but will be listening
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[09:50] <PE2G> Congrats malgar. What's the distance?
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[09:50] <malgar> 300-330 km
[09:51] <G6SUQ_Graham> balloon B-60 is down that way too
[09:51] <malgar> G6SUQ_Graham: yes I know but maybe we have mountains there.. what's the frequency?
[09:51] <G6SUQ_Graham> B-60 will be on 434.500
[09:52] <G6SUQ_Graham> only transmits every 5 minutes
[09:52] <malgar> yes i see on dl-fldigi :)
[09:52] <malgar> oooh ok!
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[09:53] <malgar> one string every 5 min?
[09:53] <malgar> my connection here is very slow.. Do you see ATLANTIS in PYSY receivers?
[09:54] <Geoff-G8DHE_> Its normally about 4 minutes with very short pips in-between
[09:54] <G6SUQ_Graham> malgar: to save battery power (I think), B60 transmits data once every 5 minutes, with 'pips' every 3 seconds
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[09:57] <ATBGH> Filling underway of Monarch 1 callsign ATBGH
[09:57] <ATBGH> Launch in 10-20mins
[09:57] <PE2G> malgar: you show with yr rx location on the map, you don't show in the receiver list
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[09:58] <malgar> PE2G: uhm.. I think that it's because the slow internet connection
[09:58] <malgar> because I'm receiving green
[09:58] <malgar> since 5 min
[09:58] <malgar> we are up in the mountain
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[10:01] <ATBGH> 5mins to launch of ATBGH
[10:01] <DutchMillbt> Good morning..roger that
[10:02] <PE2G> malgar: Does yr fldigi show at the bottom: "Uploaded payload telemetry successfully"?
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[10:02] <malgar> PE2G: now I rotated the antenna to B60
[10:02] <PE2G> Ok
[10:03] <malgar> I think that I see the 3 sec bips
[10:03] <PE2G> Great!
[10:04] <bertrik> what are the parameters for pysy?
[10:04] <PE2G> PYSY freq drifiting down 434.657.4 center 11250 now
[10:04] <PE2G> *center 1250
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[10:05] <PE2G> bertrik: PYSY RTTY 7n2 50 bd 450 Shift
[10:06] <arjun_19> What would be the best Arduino board for the Habduino
[10:07] <Steve_G0TDJ> UNO
[10:07] <arjun_19> Steve_GOTDJ - The Uno is 5V, is this okay
[10:09] <Steve_G0TDJ> I believe the HabDuino has regulators. I've got my HabDuino on an UNO and it works perfectly. If you need confirmation, speak to Upu the designer :-)
[10:09] <arjun_19> Thanks
[10:09] <Steve_G0TDJ> NP
[10:09] <fsphil> good that you're thinking about that
[10:09] <DutchMillbt> crap can't decode PYSY due to a local birdy
[10:09] <arjun_19> Thanks :-)
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[10:10] <G6SUQ_Graham> I've got an Arduino Micro here in a drawer, any good for HAB?
[10:10] <bertrik> DutchMillbt: I see noise sweeping up and down,near to where pysy should be
[10:10] <fsphil> it's a good bet G6SUQ_Graham
[10:10] <Steve_G0TDJ> G6SUQ_Graham: Has it gor an ATMEGA328 on it?
[10:10] <craag> G6SUQ_Graham: It'll work, just be aware that it's 5V
[10:10] <craag> And so you may need some level conversion
[10:11] <PE2G> DutchMillbt: Pitty. PYSY's signal is fine
[10:11] <G6SUQ_Graham> I'm not sure what's on it, it still sealed in its box and bag
[10:11] <craag> It's got the 32u4
[10:11] <Steve_G0TDJ> Cheers Phil.
[10:11] <fsphil> lovely memorable names these avrs
[10:12] <fsphil> though to be fair, the various arm chips have worse names
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[10:12] <cm13g09> morning craag
[10:12] <fsphil> the discovery board has a STM32F407VGT6
[10:12] <craag> morning cm13g09
[10:12] <fsphil> easy peasy
[10:12] <PE2G> DutchMillbt: PYSY is strong, freq drifting down, 434.656.9 center 1260 now
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[10:13] <DutchMillbt> bertrik PYSY signal is mixing with the local qsb ... i almost hunted the source down yesterday.... i'm closing in so maby next time a free frequency
[10:14] <Steve_G0TDJ> craag: Thanks for getting in touch with Michael. I believe he wants to come to the conference.
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[10:15] <mfa298> at least the AVR's seem to have at least some sense in the numbering system. 168, 368, 1268 are all similar just different size of flash/eeprom
[10:15] <G6SUQ_Graham> ATBGH away
[10:16] <malgar> oook telemetry sent sucessefully to the srever :)
[10:16] <DutchMillbt> nice !
[10:16] <malgar> still receiving PYSY very strong from the alps
[10:16] <malgar> :) very cool
[10:16] <PE2G> malgar, yeah you're in the receiver list :)
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[10:17] <craag> Steve_G0TDJ: No problem. Good to hear. Do you know if he's got the book yet?
[10:17] <arjun_19> Carrying a payload of a arduino, gopro and habuino; what balloon should I get and how much gas will I need
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[10:17] <Steve_G0TDJ> No, he hasn't said so. I'll ask him at the next radio club meet
[10:18] <malgar> BURST
[10:18] <OM1ATS> burst !
[10:18] <G6SUQ_Graham> above 40,000 metres, impressive
[10:18] <d0wnl0rd> But finally over 40km!!
[10:19] <craag> Steve_G0TDJ: K. I've also set up a channel at ##ukhasconfexams for teaching/advice
[10:19] <DutchMillbt> ATBGH what's your frequency?
[10:19] <Steve_G0TDJ> 434.073
[10:19] <PE2G> PYSY max alt received was 40790 m here
[10:19] <Steve_G0TDJ> craag: OK I'll pass that on.
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[10:19] <DutchMillbt> thankz steve
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[10:20] <mfa298> arjun_19: gas tends to depend on balloon, which tends to depend on total weight being lifted and how high you want to get. you can get some smaller balloons which will need less gas but wont get as high - but could be good for a first test
[10:20] <mfa298> you might find habhub.org/calc and predict.habhub.org useful (generally aim for 5m/s ascent and descent rates)
[10:20] <Geoff-G8DHE_> arjun_19, http://ukhas.org.uk/guides:balloon_data?s[]=calculator
[10:20] <G6SUQ_Graham> I generally find that if you tune to the right frequency you can hear 'em ... so why was I on 43*3*.073!
[10:20] <radim_OM2AMR> mclane, congrats, welcome to the 40km club :-)
[10:21] <fsphil> hah
[10:21] <arjun_19> mfa298 I want a fairly large balloon, which model do you recommend
[10:21] <PE2G> PYSY's signal remains remarkably stable in the descent
[10:21] <fsphil> you'll want to be thinking about altitude, rather than just balloon size
[10:22] <fsphil> and payload weight
[10:22] <fsphil> and how much helium you want to use
[10:22] <G6SUQ_Graham> Aah, ATBGH, the old 'lack of decimals in lat/long; problem ... you are not 8800 kms from me!
[10:22] <malgar> http://picpaste.com/2014-06-21-115518-qLnm2djR.jpg our setup
[10:22] <malgar> just take few minutes ago
[10:22] <mfa298> arjun_19: see if you can find some weights for habduino, arduino, go pro then stick some numbers into the calculator I just linked and see what balloons get you to what height.
[10:22] <malgar> took
[10:22] <fsphil> best to start with a payload weight, and then see what altitude the various sizes of balloon gives you on the calculator
[10:23] <craag> malgar: Looks like a nice day out!
[10:23] <fsphil> for a 5m/s ascent rate which is typical
[10:24] <PE2G> PYSY descent: http://s23.postimg.org/b75d1c68r/Screen_21_06_14_12_22_58.png
[10:24] <mfa298> with the larger balloons you may not gain that much apart from added expense for a 1600g balloon you've got to lift and extra 800g of latex over an 800g balloon and for a light payload it may not gain you much extra apart from the extra cost of gas to lift the extra latex
[10:24] <malgar> our elevation is 1600 m asl
[10:26] <G3ZGZ> hi all, what freq is ATBGH on - is it 434.073?
[10:26] <craag> G3ZGZ: yep
[10:26] <G3ZGZ> tnks
[10:27] <ATBGH> Hi all, ATBGH has a filter set to deal with the integers - I'm assuming its working. We should be on 434.072MHz
[10:27] <craag> ATBGH: It is working
[10:27] <craag> FYI you can also send the time with the ':'s
[10:28] <craag> *without
[10:28] <G6SUQ_Graham> in ATBGH, why are there no decomals in the lat/long?
[10:28] <G6SUQ_Graham> or even decimals!
[10:29] <craag> G6SUQ_Graham: It reduces the telem string length a bit and means you don't have to do floating point code on the mcu
[10:29] <DutchMillbt> in comming ATBGH lines..
[10:29] <craag> from the ublox you can directly print the integer returned by the UBX command
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[10:32] <Steve_G0TDJ> ATBGH 434.073.51 for 1500 center with me
[10:34] <G8AFC> ATBGH is "a bit loud" in Manchester area! - very consistent despite linear polarisation here
[10:35] <ATBGH> Haven't got around to updating the software (I forgot from the last time!)
[10:35] <malgar> red now but still receiving
[10:35] <Steve_G0TDJ> ATBGH: Good signal in Crayford (Near Dartford) Consistent greens.
[10:35] <malgar> ,48,50327,11.9509
[10:36] <malgar> 6,12390,10,1375,)0&8,-<.444D
[10:36] <craag> Great signal here on the websdr
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[10:37] <malgar> Z8.47890,!1.97237,11288
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[10:38] <malgar> $$PYSY,7P9PvSA#C.Vl@
[10:39] <malgar> 7$$$$$PYSY,792,10:1x80,48.45724,
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[10:50] <gonzo_m> anything flying at the mo?
[10:51] <gonzo_m> not enough internet here for loking at the snus
[10:51] <mfa298> gonzo_m: ATBGH around .074 is flying
[10:51] <gonzo_m> morning
[10:51] <gonzo_m> freq?
[10:51] <gonzo_m> .074. ok
[10:51] <Martin_G4FUI> ATBGH - after a lot of very strong partials, at last a green - seems to be deep fading ....
[10:51] <mfa298> very weak for me but it's on the wrong side of the country for me
[10:52] <gonzo_m> nothing from mid waled
[10:52] <gonzo_m> s
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[10:54] <Martin_G4FUI> I'm tuned nearer 434.076MHz if that helps ...
[10:56] <mfa298> looks like it's drifting upwards and the signal hasn't been strong enough for dl-fldigi to keep up for me
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[10:58] <G6SUQ_Graham> anyone know what happened with B-59 on Thursday morning?
[10:58] <bertrik> shift on ATBGH looks closer to 530 Hz than 590 Hz
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[10:59] <Martin_G4FUI> bertrik, I'm decoding nicely with my shift set at 540 ...
[10:59] <malgar> got B60! :D
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[11:05] <fsphil> I think I see atbgh
[11:07] <Martin_G4FUI> fsphil, after being a bit drifty early on, it's been pretty stable for the last 15 min or so - I'm still tuned to near 434.076MHz
[11:08] <malgar> I don't see ATLANTIS as B60 receiver, just aprs
[11:08] <LeoBodnar> are you uploading malgar ?
[11:08] <malgar> yes! on habhub I see my valid strings
[11:09] <LeoBodnar> i have turned APRS off
[11:09] <malgar> 8 valid strings
[11:09] <LeoBodnar> it has faster update rate
[11:09] <malgar> ok :)
[11:10] <malgar> LeoBodnar: this is my first B-* balloon that I'm receiving! tnx for the fun :)
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[11:10] <malgar> sdr dongle + 7 elem yagi self made
[11:10] <bertrik> malgar: nice
[11:10] <G6SUQ_Graham> Leo! what happened to B59?
[11:11] <LeoBodnar> bad things
[11:11] <LeoBodnar> weather
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[11:11] <G6SUQ_Graham> tell us more!, I presume it landed soon after its lasy position?
[11:12] <LeoBodnar> oh malgar! there were quite a few passing by Italia
[11:13] <LeoBodnar> it has landed, took off again and landed again
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[11:13] <Reb-SM3ULC> fq for atbgh?
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[11:15] <fsphil> 434.076-ish
[11:15] <fsphil> I have a weak signal from it
[11:15] <G6SUQ_Graham> So I guess you have no idea where B59 ended-up?
[11:15] <fsphil> can't quite hear the rtty yet
[11:16] <Reb-SM3ULC> fsphil: thanks
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[11:20] <Martin_G4FUI> You could take bets on what string you will make your first apperance on the leaderboard, fsphil !
[11:20] <Martin_G4FUI> Appearance ...
[11:20] <LeoBodnar> not sure Graham, it had very strange dive at the end
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[11:22] <LeoBodnar> tuning in... http://sphotos.xx.fbcdn.net/hphotos-ash4/417715_10150620269778889_21461308888_9151641_1521539064_n.jpg
[11:22] <RocketBoy> uX0 away
[11:22] <G6SUQ_Graham> Leo, it's last plotted position was near Chesham, how long do you think the batts will last?
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[11:28] <g0lfp> Where are the frequencies for today's launches publicised please?
[11:29] <g0lfp> They used to be on the tracker page... but not no more!!
[11:29] <LeoBodnar> hard to say but it might be still alive
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[11:29] <LeoBodnar> there are a lot of active flights now so it has been cleared
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[11:30] <arjun_19> I have got a payload of about 700g and want to reach a altidude of about 35km, I don't really understand the UKHAS wiki page; how much heluim do I need and how big should the balloon be (can you recmommend a model)
[11:31] <LeoBodnar> last position was 51.73041,-0.68204
[11:32] <PE2G> g0lfp: here are the XABENs: https://groups.google.com/d/msg/ukhas/ecM1Ey_F9UQ/q9mgVpwKh6oJ
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[11:32] <Darkside> arjun_19: http://habhub.org/calc/
[11:33] <bertrik> oddly, atbgh reception is getting worse here (the hague, netherlands) as it's going higher
[11:34] <d0wnl0rd> Team PYSY just recovered the payload inside a cornfield (tangled latex hull caused the fast descent) - once again thanks a lot to all listeners
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[11:35] <g0lfp> PE2G: Thank you.
[11:35] <PE2G> g0lfp: NP
[11:36] <PaulCDR_> I kept getting cut off from my wifi, not sure if my last message went up so sorry if im repeating myself. Has anyone seen the message on fldigi when you go onto online mode, "Couldnt set stationary location, invalid float"?
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[11:39] <arjun_19> Which balloon should I use
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[11:45] <mfa298> arjun_19: use the calculator you've been linked to and see what difference different balloons will give.
[11:46] <mfa298> if you want to know what balloons are easy to get hold of in the UK look at http://www.randomengineering.co.uk/Random_Aerospace/Balloons.html
[11:47] <mfa298> it may help if you've got an idea of how high you want to get as well
[11:47] <arjun_19> mfa298 Thanks (I'm a bit of a n00b)
[11:49] <mfa298> just remember that larger balloons may not get you much higher but will need more gas to lift them so costs more both in terms of balloon and gas.
[11:51] Action: SpeedEvil throws out a silly datapoint.
[11:51] <SpeedEvil> Natural gas is 50p/m^3. 1 pound, when you count the higher density as you need 2m^3, not 1.
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[11:55] <G6SUQ_Graham> uX0 on the map
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[11:58] <mfa298> ATBGH looks to be drifting down quickly
[11:59] <mfa298> down in frequency that is
[11:59] <Martin_G4FUI> Both!
[12:00] <mfa298> I just saw it's on it'w way down in height as well. that would explain it.
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[12:04] <mfa298> uX0 looks to be nice and strong
[12:05] <Martin_G4FUI> freq for ux0?
[12:05] <Steve_G0TDJ> 434.349.02 for roughly 1500 center
[12:10] <Martin_G4FUI> Thanks Steve_G0TDJ getting partials now ...
[12:10] <Steve_G0TDJ> Cool
[12:11] <Martin_G4FUI> Now greens!
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[12:20] <PE2G> Strong signal from uX0
[12:21] <PE2G> Range 415 km +0.1 deg
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[12:32] <PE2G> uX0 suddenly gone
[12:34] <mikestir> odd
[12:34] <bertrik> I don't see it either, also a lot of QRM on that frequency now
[12:34] Nick change: mikestir -> mikestir_M0MKS
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[12:38] <PE2G> First greens from uX1 at 422 km -0.4 deg
[12:39] <Maxell> oh wait another balloon?
[12:39] <Maxell> sec
[12:41] <mfa298> should be four of them
[12:41] <Maxell> Hooray it's a flock of uX's http://spacenear.us/tracker/?filter=uX0%3BuX1%3BuX2%3BuX3
[12:41] <Maxell> bertrik: tru uX1
[12:41] <mfa298> uX0 - uX3 although the last one might not have been launched yet
[12:42] <Reb-SM3ULC> reciving ux3 fine
[12:43] <Reb-SM3ULC> fl-digi with sm-coords..sri..
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[12:45] <Maxell> uX0 suddenly stronger
[12:45] <Reb-SM3ULC> climbing nicely
[12:47] <Maxell> oh ux2 it was
[12:47] <Maxell> bertrik: now going for ux2
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[12:49] <mikestir_M0MKS> ux1 one has just disappeared suddenly now too
[12:50] <PE2G> uX1 gone too
[12:50] <G6SUQ_Graham> where did ux1 go?
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[12:51] <PE2G> Same sudden disappearance of signal
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[12:58] <giacometti> it is a shame, i used to live in Tricase, it is just south of Lecce on the path of the bodnar balloon
[13:00] <giacometti> i think a good listening post it would be
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[13:03] <giacometti> i did sell all my radio equipment before my move to uk
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[13:04] <Reb-SM3ULC> giacometti: start again with little cheap dvb?
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[13:05] Nick change: RocketBoy_ -> RocketBoy
[13:06] <giacometti> Reb-SM3ULC: yes maybe.they are impressive for the money
[13:06] <giacometti> i still have a lot of rf filter from my old job, i can use them with
[13:07] <g0hww> ux0 is back
[13:08] <fsphil> its secret mission is complete
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[13:09] <g0hww> lol
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[13:13] <Reb-SM3ULC> giacometti: yeah, quite impressive little ones.. hope put at least one on the web via websdr and share
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[13:14] <giacometti> i suggest it to my cousin still in Puglia
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[13:14] <giacometti> it mwould be a useful resource there i think
[13:15] <giacometti> make a change from olio doliva and cattolico which define the lifes of most people there
[13:16] <giacometti> (i did leave a few years ago)
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[13:17] <Reb-SM3ULC> giacometti: i've received packets from leo's balloons almost 300 km away with 70 cm dipole + dvb (short cable to antenna) so they are power for the price yes :)
[13:18] <giacometti> from what i read of their specifics, the sensitivity is not so good, also the bandwidth after the mixer - do you need some sort of rf filter?
[13:18] <PE2G> uX0 descending
[13:18] <giacometti> i would have guess such a thing would help a lot
[13:18] <Martin_G4FUI> What are the frequencies for the other ux flights, please?
[13:18] <giacometti> but i have no practical experience with hab listening
[13:19] <PE2G> Martin_G4FUI:: https://groups.google.com/d/msg/ukhas/ecM1Ey_F9UQ/q9mgVpwKh6oJ
[13:20] <Reb-SM3ULC> giacometti: filter would probably ha help a lot.. i have no filters yet
[13:20] <Reb-SM3ULC> giacometti: but will build a couple
[13:20] <fsphil> ux0 not quite strong enough to decode here
[13:21] <Reb-SM3ULC> giacometti: have one with the direct-mod, need pre-selctor of at least lpf
[13:21] <Martin_G4FUI> PE2G, Thank! :)
[13:22] <giacometti> yes, i think i could make up a filter from parts box
[13:22] <giacometti> i think i have some saw close enough to 434 about 1MHz wide
[13:22] <mfa298> giacometti: depends a bit on where you are, There's not much filtering on the front end of the rtl-sdrs so a strong local signal can over power them. but if you're in a quieter area they do a reasonable job.
[13:22] <giacometti> and couple of fets
[13:22] <giacometti> mfa298: i now live in a more built up bit of uk
[13:23] <giacometti> radio is very quiet back in Tricase!
[13:23] <mfa298> there's also the habamp if you want a filter+lna without building it your self.
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[13:24] <giacometti> it is ok, i think it just be a five minute job - but i must get the dvb first!
[13:24] <mfa298> or if money is less of an issue there's always the Funcube Pro+ which has some good filters on the front end and a better adc
[13:25] <PE2G> uX0 gone again
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[13:29] <Ugi> Yay! I've been waiting weeks to try my new antenna on the roof & suddenly there are about 20 payload all in the air together!
[13:30] <giacometti> mfa298: i might try that, it looks good. leaves those nice gaasfet in my box for to fight another time
[13:30] <mfa298> the funcube dongles are nice receivers. seem to be similar to the various amateur rigs out there in terms of sensitivity.
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[13:31] <malgar> still receiving B60 from a beautiful mountain location :)
[13:32] <malgar> 250 km range
[13:33] <giacometti> malgar: you are in italy?
[13:33] <malgar> giacometti: yes
[13:33] <malgar> trentino
[13:33] <malgar> you?
[13:33] <giacometti> i used to live in puglia
[13:33] <giacometti> uk now
[13:34] <malgar> ok
[13:34] <malgar> do you launch balloons?
[13:34] <malgar> :)
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[13:34] <giacometti> not much work for engineers in puglia, but it is pretty
[13:34] <Laurenceb> giacometti: we know who you are
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[13:36] <malgar> Laurenceb: who is giacometti ? :P
[13:37] <Laurenceb> nvm ill be quiet
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[13:49] <Reb-SM3ULC> x3, weak signal for me, via websdr
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[14:01] <SgtBurned> Afternoon peeps
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[14:07] <PE2G> uX2 burst at 27255 m
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[14:32] <Reb-SM3ULC> burst of x4
[14:32] <Reb-SM3ULC> x3....
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[14:48] <DutchMillbt> x3 left the building
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[15:01] <PaulCDR> FSPhil, you about?
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[15:03] <fsphil> am indeed PaulCDR
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[15:03] <PaulCDR> Hey, just wanted to let you know, we are hoping to launch about 11am or so in the morning.
[15:04] <PaulCDR> if you are about
[15:04] <fsphil> not a problem
[15:04] <G6SUQ_Graham> PaulCDR: where are you launching from?
[15:04] <fsphil> do you need a hand chasing it?
[15:05] <PaulCDR> Should be ok chasing, but just with your extra height, an extra set of ears would be handy
[15:06] <fsphil> np. I'll have a couple of stations listening in
[15:06] <PaulCDR> Hope to launch from Ely Lodge Forest Park, Enniskillen Graham
[15:07] <PaulCDR> a couple of stations? you have some dotted about?
[15:07] <fsphil> one here at home, and I sometimes track from a hill not far from here
[15:07] <PaulCDR> cool
[15:07] <fsphil> 350m asl, so should track it most of the way down
[15:09] <PaulCDR> payload is coming together
[15:09] <PaulCDR> http://imgur.com/4WVvat5
[15:09] <fsphil> what camera are you putting into it?
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[15:11] <PaulCDR> a canon powershot a810
[15:15] <PaulCDR> we are using a 350g balloon, so hope to get about 24000m
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[15:40] <PaulCDR> How do you work out the decent rate of a payload?
[15:42] <mikestir_M0MKS> http://www.randomengineering.co.uk/Random_Aerospace/Parachutes.html
[15:42] <mikestir_M0MKS> bottom of the page there's a calcultaor
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[15:43] <PaulCDR> nice one, cheers
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[15:45] <DL7AD> did anyone have a screenshot of contestia 64/1000 ?
[15:45] <DL7AD> *does
[15:46] <mikestir_M0MKS> waterfall? I could make you one
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[15:47] <DL7AD> mikestir_M0MKS: would be great
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[15:56] <mikestir_M0MKS> DL7AD: http://www.mike-stirling.com/files/olivia64_1000.png
[15:56] <mikestir_M0MKS> this is olivia not contestia, but they should look the same
[15:56] <mikestir_M0MKS> I haven't written the contestia encoder on my payload yet
[15:57] <DL7AD> thx
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[16:08] <mclane_> just returning from PYSY10 chase - nice & easy recovery + good Biergarten + (I guess) german altitude record = perfect!
[16:13] <mikestir_M0MKS> DL7AD: http://www.mike-stirling.com/files/contestia64_1000.png <- there you go. It was trivial to make it do contestia instead
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[16:21] <Laurenceb__> https://ready.arl.noaa.gov/hypubout/110542_trj001.gif
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[16:30] Action: arko blinks
[16:31] <arko> B-61
[16:31] <DL7AD> arko: you're right www.howmanyisleoflying.com
[16:32] <arko> lol
[16:33] <Laurenceb__> rofl
[16:36] <LeoBodnar> #habhub
[16:39] <DL7AD> LeoBodnar: do you still solder them all by hand?
[16:39] <G6SUQ_Graham> don't be silly, he has a factory in China making them for him!
[16:40] <DL7AD> and launching it such like this: https://www.youtube.com/watch?v=VMpNwlU31vk
[16:43] <G6SUQ_Graham> I'm assuming that it will be on "Leo's private frequency"
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[16:53] <Johannes__> Hello all,
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[16:55] <mclane_> Hi
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[16:57] <G6SUQ_Graham> what mode for B61?
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[16:58] <LeoBodnar> Contestia 64/1000 USB on 434.500
[16:59] <G6SUQ_Graham> okay, thanks Leo ... will be flying almost overhead of me
[16:59] <LeoBodnar> i am also sending standard APRS data on 434.500 FM
[16:59] <LeoBodnar> this can be igated to APRS-IS directly
[17:00] <LeoBodnar> it is 10mW ISM physical
[17:00] <G6SUQ_Graham> ah right, here comes signal now
[17:00] <G6SUQ_Graham> and 'green'
[17:01] <LeoBodnar> heh
[17:02] <G6SUQ_Graham> Leo, I was asking about B59 as I thought about going to look for it tomorrow
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[17:03] <mclane_> ping mikestir
[17:05] <mikestir_M0MKS> pong
[17:06] <mclane_> hi, I tried to compile your webradio sw on ubuntu 13.10
[17:06] <mclane_> I got the following error: /usr/bin/ld: io/rtlsdrtuner.o: undefined reference to symbol 'pthread_create@@GLIBC_2.2.5'
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[17:06] <mikestir_M0MKS> yeah someone else has that. you need to manually add -lpthread to the linker command
[17:07] <mclane_> somehow the link to the pthread library seems to be missing
[17:07] <mclane_> where in the makefile?
[17:07] <mikestir_M0MKS> I think there's a note in a comment on the blog post on my site
[17:07] <mikestir_M0MKS> better to put it in the autotools bit
[17:08] <mikestir_M0MKS> http://www.mike-stirling.com/2013/07/a-software-radio-for-the-web/
[17:08] <mikestir_M0MKS> right at the bottom
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[17:10] <mclane_> thanks, that worked
[17:10] <mikestir_M0MKS> cool. must check in a fix
[17:10] <mikestir_M0MKS> just no time!
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[17:31] <JFS1> frequency for B-61?
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[17:32] <JFS1> frequency for B-61?
[17:33] <mikestir_M0MKS> 434.5
[17:33] <JFS1> ta!
[17:34] <fsphil> it's always 434.500 :)
[17:35] <JFS1> thanks - makes it simple
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[17:56] <Lunar_Lander> evening
[17:57] <ulfr> hi
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[18:14] <Lunar_Lander> how is everyone?
[18:14] <DL7AD> whats the frequency for STS-11 ?
[18:15] <DL7AD> hi Lunar_Lander
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[18:15] <Lunar_Lander> hi DL7AD
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[18:25] <N2NXZ> Can anyone help me understand differences in Arduino balloon tracking GPS options?
[18:27] <N2NXZ> I know this is the best choice http://ava.upuaut.net/store/index.php?route=product/product&path=59_60&product_id=68 but I live in the USA and cost is a factor so looking at this...
[18:27] <N2NXZ> https://www.adafruit.com/products/746
[18:32] <mfa298> N2NXZ: one thing to check is the maximum altitude. A lot of GPS modules stop at 18km or lower. The Ublox will go to 50km in the right mode
[18:36] <N2NXZ> We have received reports that it works up to ~32Km altitude (the GPS theoretically does not have a limit until 40Km)
[18:37] <N2NXZ> According to the website
[18:37] <N2NXZ> I am looking to save money as the tracker has already exceeded my cost..but the show must go on :)
[18:38] <mfa298> If you used a 3v3 arduino there are cheaper gps breakouts on the Hab supplies store and they're well tested at altitude - it's what most of the people here use.
[18:39] <N2NXZ> My goal here is to have NTX2 in addition an AD9850 DDS module for 30 meter band tracking.Still need to research the whole thing yet
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[18:40] <fsphil> the tracker will pay for itself if you get it back :)
[18:40] <N2NXZ> I saw the more inexpensive 3.3v...but I am a rookie with this stuff and do not want to have the wrong stuff to accomplish the goal..or worse yet,fry something
[18:41] <N2NXZ> I want to send it over to you guys in the UK!!! :)
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[18:41] <fsphil> http://ukhas.org.uk/guides:adafruitugps
[18:41] <fsphil> I'm not sure if that warning still applies
[18:42] <N2NXZ> Thanks for that info...last thing I need is loss of GPS over sea...
[18:43] <fsphil> you're planning a long duration float?
[18:43] <N2NXZ> Last year we reached over 80,000 ft
[18:43] <N2NXZ> Yes
[18:43] <fsphil> cool. where abouts are you based?
[18:44] <N2NXZ> Same attempt UPU and I tried last December
[18:44] <fsphil> aaah yes
[18:44] <mfa298> Upu might be the person to ask about the adafruit gps.
[18:44] <fsphil> I remember you now
[18:44] <N2NXZ> The venting trick...lol
[18:44] <N2NXZ> This time I have something new up my sleeves
[18:44] <fsphil> tiny foil balloons are where its at now :)
[18:45] <mfa298> I wonder if that report of it working up to 32km was the one with special firmware he lost
[18:45] <N2NXZ> Yes,but I can not produce tiny trackers yet...newbie..going arduino
[18:45] <fsphil> there are tiny arduino boards that might help
[18:45] <fsphil> the normal arduino is quite big and bulky
[18:46] <N2NXZ> I already wasted money on this thing...but no big deal,going for it ...1600 g latex...lets go for it...lol
[18:47] <N2NXZ> Not worried about weight,this is not too bad as it sits...going to try a venting method again,but contain gases rather than losing it this time
[18:48] <N2NXZ> Probably the biggest waste of money yet for me...lol
[18:49] <fsphil> my first attempt at a float failed about 30 minutes in
[18:49] <fsphil> now that was a waste of a perfectly good 1600g balloon
[18:54] <N2NXZ> I lost a few myself and 2 returned home.Last one went good as far as I am concerned. http://aprs.fi/info/a/HB-N2NXZ1
[18:54] <N2NXZ> sorry http://aprs.fi/#!call=a%2FHB-N2NXZ1&timerange=3600&tail=3600
[18:54] <LeoBodnar> N2NXZ: i remember your last launch went backwards and came back before flying away
[18:55] <majemoi> Please, what are frequency and mode for B-61?
[18:55] <N2NXZ> A few did that until it reached higher altitudes :)
[18:55] <DL7AD> majemoi: 434.500
[18:56] <LeoBodnar> drinking straw trick?
[18:56] <N2NXZ> This time,venting with a method of saving helium not losing it...thought about this a long time
[18:56] <majemoi> DL7AD: thank you.
[18:56] <daveake> I think we need a B- answer-bot
[18:58] <N2NXZ> Going to look into the other GPS you mentioned
[19:03] <N2NXZ> Besides 5v or 3.3v..what is the difference or concerns I should have between the 2 GPS modules? http://ava.upuaut.net/store/index.php?route=product/product&product_id=51
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[19:06] <cm13g09> oh dear... who's been shopping for *leoflying.com domains?
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[19:08] <cm13g09> whose are the uXaben- series?
[19:09] <cm13g09> I forget
[19:09] <Lunar_Lander> rocketboy
[19:09] <cm13g09> well he almost stuck one in a mate's back garden today lol
[19:11] <PE2G> First greens from B-61 at 437 km -0.4 deg
[19:12] <PE2G> http://s28.postimg.org/yxhy37kfh/Screen_21_06_14_21_10_11.png
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[19:12] <tanos> good evening....
[19:13] <tanos> what is the frequency od STS-11?
[19:13] <tanos> it is over us
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[19:16] <OM1ATS> STS-11 437.670
[19:17] <tanos> Thank you!
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[19:51] <PaulCDR> i have just noticed in the payload configurator that you cannot pick a zero parity, does any one know why this is?
[19:51] <mikestir_M0MKS> you mean no parity?
[19:52] <staylo_> Hmph. Falcon 9 launch is in 2 hours, but no webcast this time.
[19:52] <PaulCDR> is zero the same as none?
[19:52] <mikestir_M0MKS> none means there isn't a parity bit
[19:52] <mikestir_M0MKS> I've literally never heard it called zero parity
[19:53] <PaulCDR> in fldigi you can pick none, odd, even, zero or one
[19:53] <mikestir_M0MKS> oh. I guess one and zero will be what is more commonly called mark and space parity
[19:54] <PaulCDR> i have my tracker set as zero parity but i cant set this in the transmission configuration
[19:55] <PaulCDR> so the auto config does not work as expected
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[19:56] <Geoff-G8DHE_> NopRity isthenormal
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[19:57] <Geoff-G8DHE_> Or even No parity is the normal!
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[19:58] <PaulCDR> yeah looks to be. launching tomorrow, dont really fancy recoding it tonight
[19:58] <Geoff-G8DHE_> As the telemetry has check digits at the end no point in sending an extra bit in each byte
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[20:01] <mikestir_M0MKS> PaulCDR: so are you sending 7 data bits, 1 zero parity bit then a stop bit?
[20:02] <mikestir_M0MKS> in which case you could just change it to a 1 and call it a second stop bit
[20:03] <PaulCDR> so 2 stop bits
[20:03] <mikestir_M0MKS> yes. but only if you send the parity bit as 1 instead of 0
[20:03] <mikestir_M0MKS> because a stop bit is a 1
[20:05] <PaulCDR> emm that might be a quick fix, let me take a look
[20:06] <OM1ATS> STS-11 Live audio stream http://stream.sepia.sk:8000/sts1 1.aac
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[20:10] <Geoff-G8DHE_> B-61 descendingšŸ˜¢
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[20:39] <fsphil> zero parity, that's a new one to me too
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[20:40] <fsphil> why do they even have those
[20:41] <fsphil> it's not really parity
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[21:15] <PaulCDR> Going to check if its even needed phil. probably me making a mistake
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[21:16] <PaulCDR> but its in fldigi as an option
[21:17] <fsphil> ideally you want none
[21:18] <fsphil> parity just gets in th way
[21:18] <fsphil> the*
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[21:23] <PaulCDR> yeah, it only works when i set to zero parity in fldigi.
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[21:24] <SpeedEvil> Meh. SpaceX may be launching in the next few minutes.
[21:24] <SpeedEvil> But - no webcast.
[21:24] <SpeedEvil> "We've actually been ready to move away from the webcasts for awhile," she wrote in an email to Spaceflight Now. "It takes a lot of resources but the main reason is these launches are becoming more routine and the full webcast isn't really appropriate anymore."
[21:25] <SpeedEvil> Routine is the 18th launch of a vehicle in the same config. Not the second serious attempt at a soft landing of a stage ever.
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[21:29] <staylo_> SpeedEvil: Delayed another hour due to weather apparently (random twitter source).
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[21:31] <Lunar_Lander> yeah also, Arianespace streams all the launches despite being all the same, rocket launches, 45 minutes later satellites are deployed on GTO, everyone claps
[21:32] <Lunar_Lander> SpeedEvil, where is the source of the quote?
[21:32] <PaulCDR> As suspected, it was an error on my part. i had 7 assci, zero parity and 1 stop. it should be 8 assci, no parity and 1 stop
[21:32] <Lunar_Lander> spaceflight now?
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[21:36] <fsphil> hehe
[21:36] <fsphil> that makes more sense
[21:36] <fsphil> you could just to 7-bit for text
[21:36] <fsphil> the 8th bit will always be zero
[21:37] <fsphil> but bad luck to change things the night before the flight
[21:37] <fsphil> (or that morning...)
[21:37] <Lunar_Lander> found it
[21:37] <PaulCDR> yeah, lets not confuse things more lol, i think ill stick with 8. do i need to get my flight re-approved due to the change
[21:38] <fsphil> the #habhub crew may be able to tweak it
[21:38] <fsphil> might be quicker just to make up a new payload and flight doc
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[21:46] <PaulCDR> cheers phil, i have done that, awaiting approval now
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[21:55] <PaulCDR> is it a good idea to have the gps antenna outside the payload? http://i.imgur.com/kCUJu0M.jpg
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[21:58] <fsphil> not ideal. it might get damaged when handling the payload or when landing
[21:59] <fsphil> polystyrene doesn't block the GPS signals so its safe to keep them inside the box -- just as long as they're not too near anything conductive
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[22:01] <daveake> If it's one of those magmount GPS antennae, then I usually stick those on outside as they're plenty robust enough
[22:01] <daveake> otherwise keep it insude
[22:01] <daveake> -u+i
[22:02] <PaulCDR> cheers, ill try and move it back about an inch.
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[22:08] <Lunar_Lander> SpaceX seems to have scrubbed due to weather
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[22:42] <DL7AD> #habhub
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[00:00] --- Sun Jun 22 2014