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[05:13] <arko> :) welcome cnelson
[05:14] <cnelson> arko: ;)
[05:15] <arko> probably gonna be quiet here until europe wakes up
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[05:38] <arko> man, B-47 is really having a good time
[05:39] <cnelson> b-47?
[05:39] <arko> http://habitat.habhub.org/mobile-tracker/
[05:39] <arko> LeoBodnar flys habs like every other day
[05:39] <arko> 47 habs so far
[05:40] <arko> they are floaters, so they travel the world, many days on end
[05:40] <cnelson> arko: why u so lazy?
[05:40] <arko> hahaha
[05:40] <cnelson> LA habs erry day
[05:40] <arko> SOON
[05:40] <arko> need to find a non-conductive balloon
[05:40] <cnelson> s/find.*/stop careing about FAA/
[05:40] <arko> california is terrible, illigal to launch conductive balloons
[05:41] <arko> the way i see it, it's an engineering challenge :)
[05:41] <arko> gonna experiment with different materials, gonna make some of my own balloons over the summer
[05:41] <arko> polyethylene film is the first thing im gonna try
[05:41] <cnelson> I'll happily admit in here I'm a moron and need to be schooled
[05:42] <cnelson> is there not non-conductive balloons that can go high? or just pricey?
[05:42] <arko> haha, its cool
[05:42] <arko> well thats the thing, no one other than Leo and a few others have really experimented with them
[05:43] <arko> the thing is, if they float and can stand the super pressure, it doesn't mean they will survive the day/night thermal cycles
[05:43] <arko> which stress the balloons
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[05:44] <arko> Leo figured out an optimal setup where the payload is around 12g the aluminized balloon is capable of with standing the cycle
[05:44] <arko> though i think he has the records of most individual flights
[05:44] <arko> 48 right now or something
[05:45] <arko> so much so that there is a website to check the status of if he's flying http://isleoflying.com/
[05:52] <f5vnf> i hate windows, leo flies over my house and windows does a upgrade restart
[05:52] <arko> hahaha
[05:53] <arko> don't worry, just wait a day
[05:54] <f5vnf> its almost like a bus service
[05:54] <arko> lol
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[06:01] <DL1SGP> good morning :)
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[06:51] <DL7AD> morning
[06:51] <DL7AD> b-47 was heared in novoribirsk
[06:53] <PE2G> That's great!
[06:55] <DL7AD> the changes are good it will reach beijing in 2 days because the humidity is very low this time
[06:57] <PE2G> Cool
[07:01] <PE2G> PYSY has appeared on the map, so I take it that it'll fly
[07:07] <DL7AD> PE2G: the repeater has also picked up a log message.....
[07:08] <PE2G> Thanks for the info DL7AD. I'll put up my antenna
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[07:13] <Adam012> Good morning all. Horizon is setting up and plan to launch Gagarin at 10am (Universal Hab Time)
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[07:15] <Reb-SM3ULC> morrn!
[07:16] <Reb-SM3ULC> releasetime for pysy?
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[07:19] <PE2G> Reb-SM3ULC: in the NOTAM it says: 03 MAY 07:30 2014 UNTIL 03 MAY 11:00 2014
[07:20] <Reb-SM3ULC> thanks
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[07:40] <GRGNQMGS> hi
[07:41] <GRGNQMGS> Gagarin Probe is set to launch at 10am as scheduled!
[07:42] <Upu> OK
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[07:52] <PE2G> PYSY-8 is up
[07:52] <DL7AD> :)
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[07:53] <DL7AD> is it a pop-balloon?
[07:54] <det> gm, on what frequency is PYSY txing?
[07:58] <det> PYSY-8 info at: http://www.stratosphaere.net/index.php/de/home/m-blog
[07:59] <DL1SGP> Moin Sven, es others
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[08:02] <DL7AD> DL1SGP: moin moin
[08:03] <DL7AD> i like this ssdv photo by sent by cUBEX1 :D http://ssdv.habhub.org/images/2014-05-02--01-22-50-CUBEX1-B32.jpeg?u=27
[08:03] <arko> :)
[08:03] <DL1SGP> :D
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[08:04] <DL1SGP> heh netsplit :)
[08:05] <cnelson> hax
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[08:08] <DL7AD> DL1SGP: it wasnt me :P
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[08:11] <Reb-SM3ULC> pysy released
[08:11] <Reb-SM3ULC> ah, sri
[08:11] <DL7AD> ^^
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[08:15] <arko> Reb-SM3ULC: did it stop transmitting?
[08:17] <PE2G> PYSYchase seemed to be the only tracker
[08:18] <arko> oh there we go and update
[08:18] <arko> nice
[08:18] <PE2G> :)
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[08:21] <DL1SGP> :) goooo PYSY
[08:21] <malgar> is PYSY a floating or a latex ballon?
[08:22] <arko> ascent rate seems too high for a float
[08:22] <malgar> predicted max altitude?
[08:23] <malgar> II would like to know if I have to go up the mountaing trying to receive it
[08:23] <malgar> mountain
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[08:24] <PE2G> Precious PYSY flights: http://www.stratosphaere.net/index.php/en/en-home-2/m-missionen-en
[08:24] <PE2G> *Previous
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[08:38] <malgar> I need frequency and transmission mode of this PYSY flight
[08:38] <PE2G> 434.450 MHz DomEX16 + 434.550 MHz, 300 baud, 600 Hz shift, 8N2
[08:38] <DL1SGP> Telemetry (direct and error-corrected) and SSDV will be transmitted in 434.550 MHz, 300 baud, 600 Hz shift, 8N2 Telemetry will be transmitted in addition on 434.450 MHz using DominoEX16.
[08:39] <PE2G> Don't have the precise dial yet
[08:41] <malgar> I need at least 30 min to reach the good spotting point
[08:41] <malgar> is it enough?
[08:41] <DL1SGP> it is still climbing, so I guess you will be fine malgar
[08:42] <malgar> I will ready to receive not earlier than 11.30 CEST
[08:42] <GRGNQMGS> Hi all, does the neck lift on the burst calculator exclude or include payload weight?
[08:42] <PE2G> malgar: I'd go. Maybe it'll float
[08:43] <DL1SGP> well it is not weather sounding, so I guess your contribution of data in the case of it being ascending would be most appreciated malgar, the final decision is up to you of couse
[08:43] <GRGNQMGS> We've misplaced our weighing scale so we estimating with water weights
[08:43] <DL1SGP> s/couse/course
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[08:47] <craag> GRGNQMGS: include payload weight
[08:48] <craag> The neck lift is what you get with nothing attached to the balloon
[08:48] <craag> Then free lift = ( neck lift - payload weight )
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[08:59] <DL1SGP> aww it might have popped
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[08:59] <DL1SGP> or not :)
[08:59] <Reb-SM3ULC> :)
[09:00] <DL1SGP> Hi Reb :)
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[09:10] <rs010> PYSY FREQ ??? PSE
[09:10] <x-f> 434.450 and 434.550 +/-
[09:11] <x-f> LeoBodnar, re: APRS compressed tlm - how do you convert temperature from "2265" to "-46"?
[09:11] <rs010> TNX
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[09:16] <S_Mark> Horizon live video
[09:17] <DL1SGP> Hi S_Mark good to read you
[09:17] <S_Mark> Hi DL1SGP, yeah been away for a few weeks on holiday!
[09:18] Action: DL1SGP has not been on holiday but has not been here either :)
[09:18] <DL1SGP> hope you had a lovely holiday
[09:19] <S_Mark> yes thanks!
[09:19] <Reb-SM3ULC> DL1SGP: hi!
[09:21] <S_Mark> horizon having tracking issues
[09:21] <craag> Wouldn't be a good launch without resoldering the tracker :)
[09:21] <tweetBot> @G7IGB: Radio ham launches Spud into Space for TV show: In October 2013 Celebrity TV chef... http://t.co/FMAyamU6y2 #hamradio #ukhas
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[09:23] <DL1SGP> Guten Tag DJ3AK
[09:24] <DJ3AK> hallo DL1SGP
[09:24] <DL1SGP> ist das wetter bei dir da drueben auch so schön?
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[09:25] <DL1SGP> moin pysy crew!
[09:25] <DJ3AK> ja, fast zu schön, um am Rechner zu sein ... wenn da nicht das Hobby wäre ;-)
[09:26] <DL1SGP> genau :) prioritäten muss man setzen
[09:26] <DJ3AK> PYSY 434.549.1 600/300 good decode
[09:27] <Pysy> Moin, we still enjoy our coffee at home. We had a lot of wind during filling and have obviously underfilled the balloon
[09:27] <DJ3AK> PYSY 434.447.1 strong signal but decode is always with errors
[09:27] <Pysy> Did you try the dominoex option
[09:28] <DJ3AK> PYSY gm, RTTY decode is fine here .. 400km
[09:28] <Pysy> We are sending on two frequencies
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[09:28] <DJ3AK> yes, there are not many options for Dominoex16, just FEC and filter. I tried that
[09:29] <malgar> how much wide is the ssdv signal?
[09:29] <malgar> I receive something on 434.550 but it is much wider than usual rtty
[09:29] <Pysy> Mclane says that the shift at low temperatures might be too much for a stable dominoex
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[09:30] <DL1SGP> should be around 600Hz wide, 300bd malgar
[09:30] <malgar> ok.. so it isnt PYSY :(
[09:31] <DL1SGP> where have you driven to malgar?
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[09:32] <DL1SGP> Pysy underfilled :P hope your tracking car has a quite large fuel tank
[09:32] <DL1SGP> however thanks for the launch :)
[09:32] <DL1SGP> and enjoy the coffee
[09:33] <malgar> DL1SGP: im atlantis station in italy.. but now im shifted some km from my map position
[09:33] <malgar> sdr+ yagi
[09:34] <DL1SGP> ah you moved to an elevated area?
[09:34] <malgar> yes
[09:34] <x-f> malgar, somebody was looking for you (Atlantis) on UKHAS mailing list some days ago
[09:34] <malgar> x-f: i know :) already in conact tnx
[09:35] <malgar> contact
[09:35] <Pysy> Malgar, thanks for listening, hope your weather is better than the one we are having here in bavaria
[09:35] <malgar> Pysy: clouady here but no signal
[09:35] <DL1SGP> in3aqk was looking for malgar
[09:35] <malgar> DL1SGP: i mailed him
[09:35] <DL1SGP> good :)
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[09:37] <DL1SGP> malgar you might want to use some online tool as to calculate your bearings towards PYSY balloon from your present location, that could help
[09:37] <malgar> 434.484 a strong signal in the balloon direction.. isn't t?
[09:37] <DL1SGP> if it sounds DominoEXish
[09:38] <DL1SGP> it is sending now
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[09:38] <DL1SGP> asit looks like on my waterfall :)
[09:38] <malgar> .484 is right?
[09:38] <mikestir> what's happening with horizon?
[09:38] <craag> mikestir: Some tracker issues
[09:38] <DL1SGP> depends on your sdr adjustment malgar, but sounds correct
[09:38] <craag> Balloon is inflated
[09:38] <mikestir> still not fixed it?
[09:38] <DL1SGP> xmitting malgar
[09:38] <DL1SGP> end
[09:39] <DL1SGP> xmitting
[09:39] <malgar> how to decode and send it? dl-fldigi is enough?
[09:39] <craag> mikestir: Stream is offline, so dunno.
[09:39] <DL1SGP> yeah dlfldigi will do the job
[09:39] <craag> mikestir: "We are very close to launch. Just testing the gps tracker and then...lift off!"
[09:40] <craag> As of 1 minute ago
[09:40] <mikestir> they've just tweeted a picture
[09:40] <malgar> I THINK THAT I HAVE IT
[09:40] <craag> malgar: WOOOO
[09:40] <malgar> how to be sure?
[09:40] <DL1SGP> malgar sweet :)
[09:41] <DL1SGP> the sound of dominoex is quite easy to identify compared to the rest
[09:41] <DL1SGP> and even if the signal is drifty you will get partial decodes
[09:41] <DL1SGP> that look like telemetry strings as of the other balloons
[09:41] <craag> Hmm something tells me this new twitter layout is designed for >12" screens
[09:41] <malgar> i get strings on fldigi
[09:41] <craag> I have to scroll to even read the first tweet
[09:41] <malgar> but how to see if they are the images?
[09:42] Action: DL1SGP gives craag a large trout to slap the bird around a bit for bad design :)
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[09:43] <DL1SGP> malgar, the images are transmitted through the RTTY not the dominoex, rtty is somewhere at .550 +/- drift
[09:43] <PE2G> Traces from PYSY DomEx on 434.447.4
[09:43] <Pysy> Dominoex ist just sending the position, we are sending the ssdv images on 434.550
[09:43] <DL1SGP> DJ3AK might have the current dial on the RTTY for you
[09:44] <DL1SGP> Goedendag PE2G :)
[09:44] <malgar> f9aJnin =rrto7,09:K2:47w35.93057,12.39767,1976Qb12,5.27,-1.4.8,6*959
[09:44] <DL1SGP> that is the dominoex telemetry
[09:44] <malgar> wooo
[09:44] <PE2G> Moin DL1SGP :)
[09:45] <nats`> hi
[09:45] <DL1SGP> Salut nats` bon weekend!
[09:46] <malgar> nFrroanetS9 !3F$1-,G5V9185Nws00-0,2SX51,11,59B6OVrr,0,WSC6IBt!
[09:46] <malgar> aQatPm rnn`IH0Hw0-nr,09$rr5 !33w35V91WF?jH3S4X?,2t11B,12,7953H.3wNVH,?0;6XC0
[09:46] <malgar> it n ntfoaoan=
[09:46] <malgar> suggestions to get something better?
[09:46] <nats`> thx DL1SGP :)
[09:47] <DL1SGP> malgar the drift might be killing it, you could try the rtty for now if you like knowing that the yagi is pointing at the right place
[09:48] <LeoBodnar> are there any launches today in UK?
[09:48] <PE2G> PYSY DomEx should be decoding by mow, but it won't :(
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[09:49] <Reb-SM3ULC> LeoBodnar: horizon ?
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[09:51] <DL1SGP> yes LeoBodnar there is that launch wait I forgot about it
[09:51] <DL1SGP> :P
[09:52] <DL1SGP> GGRN
[09:52] <DL1SGP> school project
[09:52] <LeoBodnar> did i screw up B-48 flight doc?
[09:52] <LeoBodnar> it never got approved
[09:53] <DL1SGP> PYSY strong now :)
[09:53] <mfa298> LeoBodnar: you may not have asked enough times, although Upu did notice it :D
[09:54] <malgar> nothing from rtty
[09:55] <DL1SGP> I see the RTTY on dial .549 at low mark at 1200Hz
[09:56] <malgar> $$PYSY,30a,09:49:04,47.90932,12-G0984,2I074,7,5.71,-1.tb5.5,7o4CA4
[09:57] <S_Mark> nearly horizon launch time
[09:57] <DL1SGP> sweet
[09:57] <S_Mark> http://www.justin.tv/horizonqmgs
[09:57] <DL1SGP> thanks Mark :)
[09:58] <LeoBodnar> B-48 might have not made throught the sunrise as it was of dodgy construction and hugged some bushes on the way up
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[10:00] <DL1SGP> bush-humpy-48
[10:00] <PE2G> Decodes from PYSY RTTY at 562 km now
[10:00] <malgar> $$$13SY,328,09$556,48.89273,12.30244,23424,7b5.67w0.2,7.2,70*B43C
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[10:00] <S_Mark> are they sure that their tracker is working on ggrn
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[10:01] <PE2G> http://s28.postimg.org/6slpi9qjx/Screen1411.jpg
[10:01] <malgar> my laptop battery is over
[10:01] <malgar> :(
[10:01] <DL1SGP> drats malgar :(
[10:02] <fsphil> PYSY is taking pictures of the sky
[10:02] <DL1SGP> fsphil: trying to spot chemtrails :P
[10:02] <fsphil> ll
[10:02] <fsphil> +o
[10:02] <DJ3AK> DL1SGP, PE2G sorry, I was away for a while. Needed some breakfast :)
[10:02] <malgar> $$13SY,328,09$556,48.89273,12.30244,23424,7b5.67w0.2,7.2,70*B43C almost correct
[10:02] <fsphil> it might spot the moon
[10:03] <DL1SGP> breakfast is important
[10:03] <malgar> is it 10mW?
[10:03] Action: fsphil had the old classic Toast + Butter
[10:03] <mfa298> malgar: is that on the dominoex or rtty ?
[10:03] <malgar> dominoex
[10:04] <mfa298> nice
[10:04] <malgar> i dont find rtty
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[10:05] <mfa298> If you're only just getting the dominoex you might struggle with the rtty. Although as I thinkthat dominoex code is based on what I hacked together it could always be suspect
[10:06] <DL1SGP> rtty is clearly visible here, sending like a scared bird
[10:07] <malgar> ok got rtty very faint
[10:08] <malgar> 434.579?
[10:08] <malgar> what is?
[10:10] <PE2G> I have PYSY on 434.549.5 cursor 1600
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[10:10] <PE2G> RTTY that is
[10:11] <malgar> battery over
[10:11] <malgar> bye
[10:11] <malgar> has been nice
[10:11] <mfa298> not many people receiving ggrn, does that mean it's weak or is everyone still eating breakfast
[10:11] <malgar> :)
[10:11] <mikestir> it's not that strong here
[10:11] <mikestir> and the long delay between sentences is making the agc drift
[10:12] <mikestir> afc*
[10:12] <G8KNN_> lots of crud on the frequency too
[10:12] <mikestir> yeah there is so much ism data here that I do struggle with non FEC modes until they are very strong
[10:13] <mfa298> seems to be reasonably quite here for ism data
[10:13] <craag> It's string but with frequent deep fades on the websdr
[10:13] <craag> *srtong
[10:13] <craag> *strong
[10:13] <craag> yay green :)
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[10:14] <daveake> What's the camera on pysy?
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[10:15] <daveake> It's struggling under the conditions
[10:15] <craag> Yeah not doing well at all :/
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[10:16] <craag> Although 90% of my ssdv pics were like that, they just weren't the ones transmitted
[10:16] <daveake> :)
[10:17] <LeoBodnar> heh
[10:18] <mfa298> I thought pysy was planning on using a Pi and PiCam (although that's based on info from a while ago)
[10:18] <rs010> http://ssdv.habhub.org/
[10:18] <craag> We know he's using a Pi so that would seem the sensible option
[10:19] <craag> Need a raspberry-sun to prove it!
[10:19] <daveake> :)
[10:19] <craag> Ah image 11 :)
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[10:20] <daveake> subtle, but yes :)
[10:21] <Maxell> PE2G: "434.450 MHz DomEX16 + 434.550 MHz, 300 baud, 600 Hz shift, 8N2" for PYSY?
[10:22] <Maxell> Just seeing one PYSY tracker.
[10:22] <PE2G> Maxell: Domex isn't working for me.
[10:22] <Upu> what frequency is GGRN On ?
[10:22] <craag> Upu: 434.070
[10:22] <PE2G> PYSY RTTY on 434.549.7
[10:23] <Maxell> GGRN 434.070 MHz dial
[10:23] <Upu> 300 baud ?
[10:23] <PE2G> Yes
[10:23] <mikestir> ggrn is 50 baud
[10:23] <Upu> heh
[10:23] <Upu> confusing
[10:23] <Upu> sorry I'm good thx
[10:24] <Maxell> PE2G: ok I'll keep an eye on both
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[10:28] <mfa298> hmmm I should have thought to try more than the advertised frequency +/- 3KHz then. I think I'd gone down to around .071 not .070
[10:28] <craag> mfa298: SDR waterfalls ftw ;)
[10:29] <mfa298> don't have one of those on the ts2000.
[10:29] <mfa298> maybe I should look at the mods people do to connect an rtl-sdr to the if on the rig.
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[10:35] <craag> After watching contestia smooth over sharp fades like a bird over ditches, RTTY seems very wimpy and pathetic.
[10:36] <mfa298> sounds like this is quite drifty as well, I just heard the radio retune.
[10:36] <mfa298> oh the joy of the old ntx2's
[10:36] <DL1SGP> hehe
[10:36] <craag> shift is slowly narrowing too
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[10:39] <malgar> just back at home
[10:40] Gagarinhoriz (1f6714be@gateway/web/freenode/ip. joined #highaltitude.
[10:40] <malgar> unfortunately the sdr dongle burned my battery in short time
[10:40] <malgar> and it was not fully charged
[10:41] <DL1SGP> welcome back malgar
[10:41] <malgar> is the dominoex at 10 mW?
[10:42] <malgar> Just check my range: about 350 km
[10:43] <malgar> it isn't a record at all but since my very basic experience and very basic set of instruments I'm really happy
[10:44] <Gagarinhoriz> Gagarin Probe has been launched and we are now set to give chase!
[10:45] <craag> Gagarinhoriz: A good signal here in Basingstoke!
[10:46] <craag> Gagarinhoriz: What's your burst altitude?
[10:47] <Upu> suggest you get driving
[10:47] <craag> Just noticed the predictor is set up for 33km, so you could end up quite a bit west of that.
[10:47] <mfa298> malgar: it's always good to be able to test your receiving kit out on someone elses balloon - well done.
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[10:49] <Gagarinhoriz> burst altitude should be approximately 38.4km
[10:49] <eroomde> approximately
[10:49] <malgar> I defenitely need an inverter for my car
[10:49] <eroomde> malgar: yep!
[10:50] <Gagarinhoriz> We're on our way now!
[10:50] <fsphil> any good ones? the one I have is awful
[10:50] <eroomde> daveake has solo chasing down to a tee, but i quite like a two-person chase car
[10:50] <fsphil> really noisy
[10:50] <eroomde> one pilot, one radio operator
[10:50] <eroomde> the vague allusion to flying jet planes
[10:50] <fsphil> I couldn't drive + track at the same time
[10:50] <eroomde> fsphil: a decent sine-wave one
[10:51] <eroomde> the square wave ones are terrible
[10:51] <eroomde> and lotsof them often are
[10:51] <fsphil> yea
[10:51] <fsphil> the one I have is definitly square wave
[10:51] <eroomde> a clue really is the size/eight of the thing
[10:51] <fsphil> well, step wave
[10:51] <DL1SGP> Malgar, I also use an additional starter battery in my car to keep things powered independently from the ignition one...
[10:51] <eroomde> for a given power, decent ones are much bulkier
[10:51] <fsphil> my inverter destroyed an ATX PSU
[10:51] <craag> DL1SGP: I've made the mistake of that several times..
[10:52] <malgar> ok
[10:52] <fsphil> it just couldn't handle the harsh wave
[10:52] <malgar> destroyed?
[10:52] <malgar> :O
[10:52] <fsphil> yea I had to replace it
[10:52] <DL1SGP> woot green on dominoex on pysy
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[10:52] <malgar> DL1SGP: where is your station?
[10:52] <fsphil> it was a really odd shaped one too
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[10:52] <fsphil> so naturally more expensive than normal atx boxes
[10:52] <DL1SGP> it seems to decode the pysy domex much better when you set the decoder a bit too far right of the signal and not right onto it
[10:53] <DL1SGP> I am in northern Germany malgar, 442.5km distance, 2.6deg elevation
[10:53] <fsphil> wonder if I could make one
[10:53] <fsphil> PWM the AC wave
[10:53] <fsphil> low pass filter
[10:54] Gagarinhoriz (1f6714be@gateway/web/freenode/ip. left irc: Ping timeout: 240 seconds
[10:54] <fsphil> transformer to build up the voltage
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[10:54] <eroomde> bingo
[10:54] <eroomde> it'll all be about switching that driving coil mosfet efficiently
[10:55] <fsphil> yea it'll be pushing a fair few watts through it
[10:55] <mauhen> morning all, what frequency and modulation is ggrn using?
[10:55] <fsphil> I know about as much about mosfets as jon snow
[10:56] <fsphil> good project to learn about 'em
[10:56] <wd8mnv> rtty/about 500 shift/ 7 n 2 is what i have
[10:56] <wd8mnv> 550 shift
[10:57] <mauhen> Thanks wd8mnv
[10:57] <wd8mnv> yw... and about 434071 ish
[10:58] <mauhen> ok
[10:59] Nick change: bigcw_ -> bigcw
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[11:02] <malgar> i repeat the question
[11:02] <malgar> is the dominoex of PYSY at 10 mW?
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[11:07] <DL1SGP> malgar: as far as I am aware it is using an NTX2 so basically it should be sending at 10mW
[11:07] <malgar> ok
[11:08] <malgar> I'm thinking about trying another session of tracing if my pc will be charged in time
[11:08] <malgar> do you know the burst elevation?
[11:08] <PE2G> PYSY sounding bursty
[11:08] <fsphil> suddenly PYSY has a corretly oriented picture
[11:08] <malgar> ok
[11:08] <malgar> :P
[11:08] <fsphil> that could be why lol
[11:08] <DL1SGP> yeah I observed same PE2G, also drifting a bit more :)
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[11:13] <DL1SGP> have a safe landing PYSY and thanks for the fun!
[11:16] <malgar> :)
[11:19] <DL1SGP> btw malgar, you should see my tower on the snus-tracker map
[11:20] <malgar> I see you
[11:20] <DL1SGP> ah good :)
[11:20] <malgar> did you get more red or green strings?
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[11:22] <Maxell> Whats up with GGRN? Much fading here...
[11:22] <malgar> ciao cionki
[11:22] <cionki> ciao
[11:23] <Maxell> Hey - green
[11:23] <malgar> cionki is our chief programmer.. the best around here
[11:24] <Gagarinhoriz_> hmm the number of satellites being used has decreased.. trying to get a better signal
[11:26] <DL1SGP> hmm what is the shiny thing on image 48 of PYSY?
[11:26] <DL1SGP> malgar mostly I got red strings due to the drift on the dominoex signal had a few greens though
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[11:37] <Maxell> Just 4 greens so far.
[11:38] <Maxell> 5 now :)
[11:38] <Maxell> RTTy filter on 50 now.
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[11:39] <G4MYS-Andy> Frequency of GGRN please
[11:39] <wd8mnv> 434071 ish
[11:39] <G4MYS-Andy> Many thanks Andy
[11:39] <PE2G> GGRN on 434.072.9
[11:40] <G4MYS-Andy> The tone and bells?
[11:40] <PE2G> 7n2 , 50 bd
[11:40] <wd8mnv> 50 baud, about 550 shift 7n2
[11:40] <PE2G> GGRN sounds as if it's swinging
[11:41] <G4MYS-Andy> weird looking waterfall!
[11:41] <DL1SGP> It had a pretty long piece of cord on it as far as I remember from the launch video, PE2G ... so it might be swinging :)
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[11:43] <PE2G> I always thought that a short rope causes the swinging
[11:43] <wd8mnv> longer = slower
[11:43] <Laurenceb_> yeah, longer gives longer period, and less angular deviation
[11:44] <Laurenceb_> as long as you avoid second order modes
[11:46] <Maxell> Sweet. GGRN all greens now.
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[11:46] <PE2G> It's a slow swing now, a while ago it was much faster
[11:49] <malgar> what kind of board do you use for transmission on PYSY? rasp for sddv, and for dominoex?
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[11:51] <GGRN_HORIZ> GGRN has just reached 33km! ... nearing burst altitude though..
[11:54] <mfa298> malgar: I think they're using a pi for the ssdv and dominoEX although it's not a setup I'd necessarily recommend.
[11:54] <malgar> mfa298: ok
[11:54] <mfa298> The dominoEX requires using hardware PWM on the Pi and ideally needs multithreaded C/C++ code.
[11:56] <mfa298> looks like mclanes github hasn't been updated for a while so I'm not sure if thats what he's still doing but that was the plan. He was basing it on my badly written proof of concept code for dominoEX
[11:56] <Reb-SM3ULC> ggrn pop
[11:57] <Laurenceb_> burst
[11:57] <mikestir> yay tracker PCBs arrived
[11:57] <mikestir> that only took about a week
[11:58] <GGRN_HORIZ> yep aha we haven't reached our target but we broke 35km which is higher than last time!
[11:58] <wd8mnv> 35K is pretty good
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[11:59] <G6SUQ> it's above the magical 100,000 ft mark
[11:59] <SIbot> In real units: 100,000 ft = 30 km
[12:00] <wd8mnv> sounds like it's spinning
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[12:13] <malgar> the landing predictor doesn't use terrain elevation data, right? since we are in the mountains it will be very useful
[12:14] <malgar> it would be
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[12:17] <malgar> landed
[12:20] <daveake> Both Upu and I have landed flights at around 1.8km altitude
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[12:25] <malgar> daveake: what do you mean?
[12:25] <daveake> I mean they landed on mountains
[12:25] <daveake> His in Austria (launched in UK)
[12:26] <daveake> Mine was a Spanish flight
[12:26] <fsphil> the percentage of the earths surface above 1.5km can't be very much
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[12:26] <fsphil> pysy seems to have landed in some dirt
[12:27] <wd8mnv> anyone chaseing GGRN?
[12:27] <G4MYS-Andy> data not strong enough any more in Southampton
[12:27] <malgar> fsphil: not on alps
[12:28] <DL1SGP> dirt is better than water fsphil :P which would have been just on other side of that road
[12:28] <malgar> I meant that the prediction of the landing point could be not accurate if there are mountains
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[12:28] <daveake> GGRN landed rather quickly
[12:28] <craag> last string, oh yeah! :D
[12:29] <daveake> Landing speed 12m/s is faster than it was doing at 10km iirc
[12:29] <craag> hmm tangled chute perhaps
[12:29] <daveake> ah yeah look at the descent curve
[12:29] <daveake> tangled up at 8km approx
[12:30] <DL1SGP> any notams about flying goats?
[12:30] <daveake> that's gonna be in a road or garden or someone's house
[12:31] <craag> unlucky place to land fast :(
[12:31] <daveake> yup
[12:31] <Upu> uff thats quick
[12:32] <mfa298> hopefully it didn't hit the m4.
[12:32] <daveake> nah descending too quick for that
[12:33] <craag> Yeah it will have lended somewhere on Windsor road
[12:33] <craag> *landed
[12:33] <craag> hopefully in someones unoccupied front garden
[12:34] <G4MYS-Andy> Does it have a phone number on it?
[12:34] <mfa298> I just looked at the last couple of points. probalby wont have made it much further.
[12:34] <mfa298> the next sentence would probably have been on the ground
[12:35] <craag> It dropped off *very* suddenly
[12:35] <craag> I reckon I had LOS until it went below the roofline
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[12:36] <daveake> any idea where the chase crew are?
[12:36] <mfa298> hopefully they're not too far away, I imagine it could be found quite quickly by a passer by there
[12:37] <M6SFC> Hi Andy
[12:37] <G4MYS-Andy> Hi John! 700?
[12:37] <M6SFC> im there
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[12:40] <nats`> there is a something sad, now that balloons have APRS there are less people trying to lsiten in UHF
[12:41] <daveake> Not in the UK :p
[12:41] <pysy> Quick Update from Team PYSY: successful recovery of our payload. Thanks to all , who have listened
[12:41] <craag> nats`: Balloons have always had APRS, jsut not in the UK.
[12:42] <nats`> not in France too
[12:42] <craag> Yep, as it's illegal in both
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[12:44] <Maxell> pysy: congrats! :)
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[13:39] <mfa298> LeoBodnar: are those balloons trying to escape again ?
[13:40] <LeoBodnar> One just did
[13:40] <LeoBodnar> B-49 is up and away
[13:40] <DL1SGP> aww
[13:40] <DL1SGP> have a safe float B-49
[13:41] <craag> Hmm not sure if the websdr might have LOS to Leo's launch site almost
[13:41] <mfa298> not far off having LoS
[13:42] <craag> A couple of sentences came through loud and clear before windows would open the sound settings window
[13:44] <Maxell> B-49 434.500 MHz, USB, vertical polarisation, Contestia 8/250
[13:44] <nats`> LeoBodnar by sending about 3 times the rsid at night it could help
[13:44] <nats`> with heating the end of the contestia is hard to catch
[13:44] <DL7AD> i will open a bottle of champagne when b-50 is launched
[13:45] <craag> I wonder if he should launch B-100 at the conf to show us how he sprinkles the magic float-fairy dust on them
[13:46] <Maxell>
[13:46] <LeoBodnar> nats`: try increasing tracking window: Right click CTSTIA 8/250 at bottom left, then set Tune margin to 16 or more
[13:46] <nats`> ohh oky :)
[13:46] <nats`> thanks for the tips Flight commander :)
[13:46] <LeoBodnar> lol Ft.Lt only so far
[13:47] <nats`> :D
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[14:03] <Maxell> Damnit B-49... FLOAT!!!
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[14:06] <DL1SGP> lol Maxell
[14:06] <malgar> LOL
[14:06] <craag> 521m
[14:06] <Maxell> Leo already gone picking it up? :P
[14:06] <malgar> predictions for B49?
[14:06] <Maxell> malgar: towards earth (:
[14:06] <malgar> O_O
[14:07] <Maxell> http://x-f.lv/dev/habitat-graphs/payload/B-49#g/altitude :(
[14:07] <malgar> LeoBodnar failed? :O
[14:09] <nats`> it's a lie ! :D
[14:10] Action: DL1SGP blames the goats
[14:10] <malgar> B-49 is sending fake data :P just to give us a surprise when suddently it will be at 10000 m
[14:10] <Maxell> 453 meters :(
[14:11] <DL7AD> clouds....
[14:11] <f5vnf> just because i was all prepared
[14:13] <DL1SGP> prochain fois f5vnf :)
[14:14] <DL7AD> this has been probably the shortest flight ever done :D
[14:14] <nats`> leaky balloon ?
[14:15] <DL7AD> nats`: we will see
[14:15] <bertrik> hey, it's not dead yet!
[14:15] <nats`> under 200m ?
[14:15] <nats`> 30minutes after launch it's weird
[14:15] <nats`> unless Leo runs to get it and repair :)
[14:15] <craag> DL7AD: Nope, that prize goes to GDP
[14:16] <craag> 1.5m
[14:16] <nats`> oO
[14:16] <craag> Then the balloon came back down - not enough helium to lift the payload
[14:16] <craag> Just the momentum picked it up at first
[14:16] <craag> They had no more helium - had to scrap the launch and go home.
[14:17] <DL7AD> oO :D
[14:18] <nats`> ohh it take more altitude !!!
[14:18] <Maxell> craag: too bad :(
[14:19] <craag> coming back on the websder...
[14:20] <Maxell> Yep. Seems to be airborne again.
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[14:20] <DL1SGP> welcome back Leo
[14:21] <DL7AD> :D
[14:21] <LeoBodnar> yo
[14:21] <Maxell> LeoBodnar: quick fix?
[14:21] <DL7AD> what did happen?
[14:21] <nats`> save him !
[14:21] <LeoBodnar> no idea, clear blue sky with occasional clouds
[14:22] <LeoBodnar> lots of thermals
[14:22] <LeoBodnar> great for sailplane soaring
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[14:23] <LeoBodnar> 4m/s ascend
[14:23] <Maxell> We'll see.
[14:23] <LeoBodnar> yay, like big guys
[14:23] <DL7AD> LeoBodnar: did you drive to the balloon?
[14:23] <LeoBodnar> lol no
[14:23] <LeoBodnar> i am at home
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[14:23] <LeoBodnar> 4.3m/s ascend
[14:24] <DL7AD> hope it did not ditch.....
[14:24] <LeoBodnar> it was pretty much at ground level
[14:25] <malgar> :D
[14:25] <malgar> gogo
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[14:26] <DL7AD> it has been probably a microburst or a Lee wave
[14:26] <malgar> LeoBodnar: do yu think that you will ever launch a B-* with SSDV or similar? it would be cool to get a long lasting ballon with that
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[14:31] <DL1SGP> malgar, power management would get tricky on that one, fsphil did some great floats with ssdv though :) like the Orion flight
[14:32] <craag> Dave's ssdv float wasn't half bad either!
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[14:48] <Upu> its theoretically possibly
[14:48] <Upu> we've found a small camera
[14:48] <Upu> and its working with the pava hardware
[14:48] <Upu> only issue is it needs 3.3V
[14:49] <Upu> arko has had it working on Cubex
[14:49] <bertrik> Upu: like a mobile phone camera module?
[14:49] <Upu> https://www.adafruit.com/products/1386
[14:50] <malgar> I think that would be cool also few images every hour and then switch it to low power
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[14:50] <Upu> well working on it
[14:54] <bertrik> oh cool, that module already does the jpeg compression
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[14:56] <G6SUQ_Graham> what mode for Leo's latest please?
[14:56] <Maxell> B-49 434.500 MHz, USB, vertical polarisation, Contestia 8/250
[14:57] <G6SUQ_Graham> okay thank
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[14:59] <amell> I see B-47 made it to novosibirsk, congrats LeoBodnar. Yet another distance record cracked?
[15:00] <Maxell> SA6BSS: via remote reciever or tropo?
[15:00] <Maxell> G6SUQ_Graham: Transmission contains one lines of telemetry every 4 minutes and lasts about 30 seconds Time between telemetry data is filled with beeps at 3 sec intervals. Enable RxID (RSID) to automatically track the signal drift.
[15:01] <craag> Correction: 2 lines of telemetry at a time
[15:02] <amell> who is the owner of EARS balloon?
[15:03] <Laurenceb_> B-49 landed?
[15:03] <daveake> Noddy ?
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[15:04] <daveake> look like it did
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[15:05] <amell> im really puzzled as to why B-47 wasnt
[15:05] <amell> tracked for longer
[15:05] <amell> seeing as it was going towards the igate.
[15:07] <nats`> no more station ?
[15:07] <nats`> maybe not enough APRS or UHF station around there
[15:07] <amell> it was approaching the station
[15:08] <DL7AD> it has been frozen
[15:08] <amell> so should have maintained contact for a lot longer
[15:08] <amell> unless igate was turned off or something
[15:08] <nats`> ah yes something like under -53° it doesn't TX
[15:08] <amell> oh right
[15:08] <amell> by design?
[15:08] <Maxell> Laurenceb_: daveake: yes LeoBodnar picked it up and launched it again
[15:09] <daveake> aah
[15:09] <DL7AD> no LeoBodnar told that he hasnt been there
[15:09] <daveake> aah
[15:09] <daveake> :)
[15:09] <mattbrejza> it relaunched itself
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[15:10] <DL7AD> [16:23:14] <DL7AD> LeoBodnar: did you drive to the balloon?
[15:10] <DL7AD> [16:23:19] <LeoBodnar> lol no
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[15:12] <Maxell> 16:21:58 < LeoBodnar> no idea, clear blue sky with occasional clouds
[15:12] <Maxell> 16:22:02 < LeoBodnar> lots of thermals
[15:13] <Maxell> 16:23:16 < DL7AD> LeoBodnar: did you drive to the balloon?
[15:13] <Maxell> 16:23:20 < LeoBodnar> lol no
[15:13] <Maxell> 16:23:23 < LeoBodnar> i am at home
[15:13] <Maxell> hm
[15:15] <amell> you even asked him twice
[15:15] <amell> oh, two different people pasting the same thing
[15:15] <amell> lol
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[15:15] <DL7AD> i was first *fingerscrossed
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[15:22] <malgar> are there predictions for b49?
[15:22] <Maxell> DL7AD: your clock is a bit off :P
[15:22] <Maxell> malgar: might want to wait until it floats
[15:22] <G6SUQ_Graham> It's a 'Leo-balloon' so the only prediction is 'several days, could go anywhere'
[15:23] <DL7AD> Maxell: no the server is just a bit far away :D
[15:26] <Maxell> DL7AD: heh https://i.imgur.com/whJrgUK.png
[15:26] <Maxell> ntp does not agree
[15:27] <DL7AD> ^^
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[15:39] <RB> hi
[15:39] <RB> anyone here
[15:39] <G6SUQ_Graham> just a few
[15:40] <RB> just wondering how i find out more aabout the B-47 on the Tracker
[15:40] <RB> where it came from etc
[15:40] <DL7AD> hi RB
[15:40] <RB> hi
[15:40] <G6SUQ_Graham> it came from the UK, last weekend I think
[15:41] <RB> ive only discovered the whole HAB thing in the last week
[15:41] <RB> very exciting and interestig stuff
[15:41] <RB> is there any way of finding more information about it?
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[15:42] <RB> do they usually go such distances?
[15:42] <eroomde> http://leobodnar.com/balloons/
[15:42] <eroomde> b-46 is the most recent one
[15:42] <eroomde> that he's written up
[15:42] <G6SUQ_Graham> B47 won't be too different from the other B40s
[15:42] <eroomde> there are two classes of balloon flight really, rb - those that float for a long time at low altitudes
[15:42] <daveake> It's probably a full time job writing them up
[15:43] <eroomde> and those that go up to high altitudes, burst, then come down, all within 3-4 hours
[15:43] <RB> do you need different permissions for the two - I have read about the permission for the higher altitude
[15:43] <eroomde> so these long duration floaters might speed a week at about 8-10km altitude
[15:43] <eroomde> whereas the high alt ones might go to 40km
[15:43] <Laurenceb_> maybe...
[15:43] <eroomde> you need permission in general
[15:44] <Laurenceb_> we have never seen one come down after >4 days flight
[15:44] <eroomde> however there is a size exemption, under which you can fly without telling anyone
[15:44] <Laurenceb_> they have always disappeared out of range
[15:44] <RB> what is teh size exemption - is it all on the wiki
[15:44] <eroomde> thzt exemption is 2m in any single linear dimension
[15:45] <RB> cool
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[15:45] <RB> will look further
[15:45] <eroomde> i.e. if you could fit your entire apparatus inside a 2m sphere for the entire flight, you don't have to notify anyone
[15:45] <RB> that seems a fair size
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[15:45] <eroomde> bigger than that and you need (at least in the uk) a NOTAM - a notice to airman - which you can get from the CAA
[15:45] <RB> wonder how high or far balloons this size have gone
[15:46] <G6SUQ_Graham> B46 got to India ... far enough?
[15:46] <RB> lol
[15:46] <RB> indeed
[15:46] <eroomde> well, if you design your floating balloon right, in principle it could fly for months
[15:46] <eroomde> and go round the world
[15:46] <DL7AD> in the northern hemisphere
[15:46] <eroomde> the limiting factor wouldlikely be diffusion of the gas out
[15:47] <RB> have any ever come back into range as they have reentered detectable area
[15:47] <bertrik> yes
[15:47] <eroomde> but not having been round the world
[15:47] <G6SUQ_Graham> yes, but not having gone round the world
[15:47] <RB> if you are setting one off and you want people to track it, how do you let people know
[15:48] <eroomde> the ukhas mailing list
[15:48] <G6SUQ_Graham> there is a UKHAS google group, send an email to there
[15:48] <eroomde> in the rest of the world, a solution is to transmit APRS
[15:48] <eroomde> which is fairly universal
[15:48] <Laurenceb_> basic numbers indicate 2months for a ~1.5m diameter aluminized mylar floater
[15:48] <G6SUQ_Graham> (unless your name is Leo< he seems to have some kind of exemption!)
[15:48] <Laurenceb_> filled with H2
[15:49] <RB> kids wanting to play - will be back later, thanks for the info
[15:49] <Laurenceb_> but there are special film with low permeability
[15:51] <malgar> b49 prediction http://ready.arl.noaa.gov/hypubout/144407_trj001.gif
[15:52] <eroomde> suspect it might float higher
[15:52] <eroomde> if it's one f leo's home-made envelopes
[15:53] <malgar> :D
[15:54] <nats`> need a station more in France ?
[15:57] <SA6BSS> Maxell: Remore rcv
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[16:11] <malgar> did you ever get a NOTAM denied? and why'
[16:11] <malgar> ?
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[16:16] <mattbrejza> in the uk itll get denied if you launch in an area covered by an airports approach
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[16:22] <Maxell> SA6BSS: ah yes.
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[16:38] <arko> haha
[16:38] <arko> there's a B-49 of course
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[16:41] <nats`> suggestion: is it possible to change the processing of the filter on tracker
[16:41] <nats`> at the moment it's case sensitive
[16:41] <PB0NER> hmm I'm the first with green decodes in NL?
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[16:43] <PB0NER> very weak signal ...
[16:48] <amell> great circle distance records on the arhab site, anyone know what earth model is used? is WGS84 ok?
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[16:50] <amell> if WGS84 then B-47 has travelled 3227 miles, not as far as B-45 at 4164 miles
[16:50] <amell> comes 6th in the world record distance table.
[16:54] Action: Reb-SM3ULC thinks leo = google. ;)
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[17:00] <Maxell> 15:46 < LeoBodnar> nats`: try increasing tracking window: Right click CTSTIA 8/250 at bottom left, then set Tune margin to 16 or more
[17:00] <Maxell> This setting determines how far, either side of your center frequency, Olivia will search for a signal to decode. If you reduce this when another Olivia signal is close or overlapping it may keep it from locking onto the other signal instead of yours. Also .... if you are trying to decode an extremely weak signal and can't even tell exactly WHERE to click on the waterfall because the trace is too faint or non existent then it might help to increase
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[17:03] <nats`> Maxell is it used by contestia ?
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[17:05] <Maxell> nats`: yes. Contestia is Olivia's little sister.
[17:05] <nats`> oky :)
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[17:05] <Maxell> "Contestia is a digital mode that is very very similar to Olivia. It is similar because it was directly derived from Olivia by Nick Fedoseev - UT2UZ. It sounds and looks (on waterfall) just like Olivia. I refer to it often as Olivia LITE and it's an excellent mode."
[17:05] <Maxell> http://www.oliviamode.com/Contestia.htm :D
[17:06] <nats`> anyway I'll not put the station up unless no other on the trac is working
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[17:12] <LeoBodnar> i wonder if some ham callet their daughter "Contestia"
[17:13] <LeoBodnar> s/callet/named/
[17:13] <LeoBodnar> yet
[17:14] <Reb-SM3ULC> :)
[17:14] <Reb-SM3ULC> probably
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[17:16] <G6SUQ_Graham> I suppose that somebdy might call their daughter 'Domino' ... maybe not 'Throb' though?
[17:16] <nats`> RTTY
[17:16] <nats`> :D
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[17:23] <Reb-SM3ULC> nats`: my daughter has the brothers 'maximus' and 'optimus' in her class...
[17:23] <DL1SGP> lol reb :)
[17:23] <nats`> oO
[17:23] <nats`> seriously
[17:23] <Reb-SM3ULC> i hope they get a thrid child.. ive bet a beer on minimus...
[17:23] <nats`> no prime
[17:23] <nats`> optimus prime
[17:23] <nats`> :D
[17:24] <Laurenceb_> http://www.youtube.com/watch?v=BwSMmnqKD7M
[17:24] <Laurenceb_> im going to hell for posting that
[17:24] <G6SUQ_Graham> I work with twins, one called Monique and one called Unique
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[17:26] <SpeedEvil> hah
[17:26] <SpeedEvil> unique, and singula
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[17:34] <mikestir> i'm sure someone will have called their son Thor
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[17:36] <G6SUQ_Graham> Probably in Norway or Iceland
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[17:42] <Willdude123> I just had an idea for my final project for my CS course.
[17:43] <Willdude123> Wait no, that's not a great idea
[17:44] <G6SUQ_Graham> go on, surprise us ... a RTTY TX, to be launched under a balloon?
[17:44] <Maxell> G6SUQ_Graham: haha
[17:46] <SA6BSS> My bosses brothers name is Thor :)
[17:48] <myself> I know a kid in Michigan named Thorvald, he has interesting parents :)
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[17:49] <myself> I was wondering if girls named Alexandria have a statistically significant difference from the general population, in how many become librarians
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[17:57] <Laurenceb_> nominative determinism
[17:57] <Willdude123> G6SUQ_Graham, I was thinking, like if you go to a good university, there's a relatively high chance someone famous has been there.
[17:57] <Willdude123> So it'd be sort of a guestbook for uni dorms
[17:58] <Maxell> M0XER-9 above France. See you later M0XER!
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[18:04] <myself> Laurenceb_: Thank you for giving me a name to the phenomenon!
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[18:09] <mclane_> question to the managers of habhub: can I somehow download the ssdv pictures from our flight PYSY8 today?
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[18:12] <mattbrejza> http://ssdv.habhub.org/ ?
[18:12] <mattbrejza> file -> save as etc
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[18:13] <mclane_> yea - 69 pictures?
[18:13] <mattbrejza> itll save everything on th webpage inc the images
[18:14] <mclane_> ah - not every picture individually - I understand. Thanks for the hint!
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[18:20] <Picovid> Hi all. Just getting into HAB and very excited. Has anyone tried getting live video using 2.4GHZ wireless ccd and a high gain parabolic antenna?
[18:21] <SpeedEvil> In short - you need a very big dish
[18:21] <SpeedEvil> At ranges involved - it's impractical
[18:22] <SpeedEvil> Unless you can borrow Jodrell bank
[18:23] <Picovid> I read that naval academy balloons got about 8 miles on 10mw and a one meter dish.
[18:24] <SpeedEvil> yes. 8 miles is nothing
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[18:25] <Picovid> its all I need if I can go almost straight up!
[18:25] <SpeedEvil> That's really tricky
[18:25] <Picovid> i like tricky!
[18:26] <SpeedEvil> If you're willing to accept that - then you can add a downwards pointing antenna
[18:26] <SpeedEvil> http://www.ebay.co.uk/itm/Fortec-Star-2-4m-Satellite-Dish-with-LNB-/151289265502?pt=UK_ConEle_SatCableFreeview_RL&hash=item23398afd5e
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[18:26] <mfa298> someone did video over 2.4Ghz recently although probably more than 10mW (which isn't legal everywhere)
[18:27] <Picovid> I was thinking of a horizontal dipole that is strongest rf broadside and a light payload with a large balloon to get a high ascent rate
[18:28] <SpeedEvil> horizontal dipole throws three quarters or more of the radiation in useless directions
[18:28] <mfa298> but I'm not sure that wifi is necessarily going to work well, a video sender might be a better option.
[18:29] <Picovid> I was thinking of a quick up and down trip as high as possible over the uk and utilise a high gain parabolic dish to get the range I might need about 24db
[18:29] <Picovid> 2.4ghz video sender to be used
[18:29] <SpeedEvil> For that sort of range, wifi is sort of plausible
[18:30] <SpeedEvil> especially 5GHz
[18:30] <Picovid> only 2.4 ghz legal in the uk
[18:30] <SpeedEvil> hmm
[18:30] <SpeedEvil> Isn't the 5ghz wifi band also licence exempt?
[18:31] <mfa298> you probably want to consult ir2030 to see what the legal limits are for airborne use (power, bandwidth, duty cycle) as that will show what you can use.
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[18:31] <Picovid> 10mw 2.4Ghz in the uk licence free for airborn use
[18:31] <mfa298> I think there's some of 5GHz that can be used airborne but it's also a low power (possibly also 10mW)
[18:32] <Picovid> what about a 2 or three element yagi that had a wind vane on the back to keep it pointing upwind?
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[18:33] <Picovid> and a 24 db dish on the reciever
[18:35] <SpeedEvil> There is no wind
[18:35] <DL1SGP> indeed :)
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[18:37] <SP9UOB-Tom> evening All
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[18:37] <SP9UOB-Tom> daveake: nice potato ;-)
[18:38] <mfa298> something designed to point directly down with a small foot print is likely to be the best bet, but then you need to be able to stay underneath the balloon during the flight which may be tricky
[18:39] <DL1SGP> Hi SP9UOB-Tom :)
[18:40] <SP9UOB-Tom> Hi DL1SGP :-)
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[18:40] <SP9UOB-Tom> tschuss ;-)
[18:40] <SpeedEvil> helical
[18:40] <myself> biquad is light, durable, and directional "enough" for that sort of application without having a too-narrow beam.
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[18:40] <myself> helical's a great idea
[18:40] <nats_laptop> live from kitchen
[18:40] <Picovid> So what size of balloon would ascend quickly and drift downwind less with a payload af say about 100g
[18:40] <nats_laptop> already hearing B49
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[18:41] <Picovid> biquad and helical are very practical I think at 2.4ghz
[18:42] <myself> helical also gives you a polarization advantage, which would otherwise be tricky. Go with that.
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[18:42] <Picovid> circular polarisation I guess?
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[18:43] <myself> helicals are..
[18:44] <Picovid> Would I also need circular polarisation on the reciever?
[18:44] <mfa298> ideally
[18:44] <Picovid> helical cantenna type waveguide?
[18:45] <Picovid> on parabolic dish for gain
[18:45] <mfa298> if you go between different types of polarisation there's some loss. Although dipoles at rightangles would probably have more loss.
[18:45] <nats_laptop> can someone confirm that the frequency for USB is 2100Hz upper
[18:45] <nats_laptop> or it means I need to tune my receiver
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[18:48] <MatB> anyone know anything about BigEARS? http://ears.org.uk/launches/bigears/ They don't seem to put much online nor have IRC or a mailing list but I was thinking of going watching rockets tomorrow
[18:49] <Picovid> id really like to give it a go! I know it will be tricky but thats half the fun learning, experimenting and learning from mistakes!
[18:51] <Picovid> I think I will make a protoype experimental platform first and try some tethered trials with antennas.
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[18:53] <Picovid> Thank you very much for your comments all! Appreciate them a lot! Good food for thought!
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[19:01] <Picovid> anyone here familiar with the CAA 2M linear small balloon regulations?
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[19:07] <Picovid> The CAA determination of a small balloon is vague at best. Is it a spherical measurement of 2M or cubed?
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[19:08] <chrisstubbs> Picovid, the balloon has to be under 2m in any dimension at any point in the flight
[19:08] <chrisstubbs> so under 2m at all times, considering it expands as it gains altitude
[19:10] <Picovid> What about foil balloons that probably dont expand that much Chris? I've looked at your cheapo tracker. Great work and inspiring thank you!
[19:10] <chrisstubbs> afaik the only suitable ones are 100g pawan and 36" qualatex foils at http://randomsolutions.co.uk/Random_Aerospace/Balloons.html
[19:11] <Picovid> Thank you!
[19:13] <Picovid> going to have to make it VERY light to go as straight up and down as possible I think!
[19:15] <Picovid> Do you know if the 36" qualatex are taller than they are wider please Chris?
[19:17] <chrisstubbs> They are round
[19:17] <Picovid> Thank you.
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[19:18] <chrisstubbs> I dont have any decent photos of one inflated i'm afraid
[19:18] <Picovid> No problem I will get some and experiment! Should be fun!
[19:18] <chrisstubbs> http://www.leobodnar.com/balloons/B-5/Pages/7.html
[19:20] <mfa298> Picovid: I'm not sure that balloon size will have any impact on how straight up and down in the way you think. What may make a difference is how quickly it goes up and down.
[19:21] <Picovid> Yes ive been tracking his amazing adventures recently on spacenear.us. Thats what inspired me though i would realy like to try and get live video on 2.4GHz. I think I would need to high and fast and it is chalenging but id love to give it a go!
[19:22] <Picovid> I think for a small balloon to assend quickly to keep it overhead as possible it is going to have to be very light indeed!
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[19:23] <LazyLeopard> You're at the mercy of the wind.
[19:23] <mfa298> you might want to play with the calculators and predictor on habhub.org
[19:23] <mfa298> http://habhub.org/calc/ and http://predict.habhub.org/
[19:24] <LazyLeopard> To get straight up and down you're going to have to pick an exceptionally calm day.
[19:24] <mfa298> although for the foil balloons you're going to get very little height if you want it to burst
[19:25] <Picovid> I am certain launch conditions will play a major part and that they would need to be ideal. its a chalenge I know! Id like to give it a try and wait for things to be right given a tested platform to launch.
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[19:26] <Picovid> If I aim for 60g payload what height might i achieve with a foil balloon?
[19:26] <mfa298> I think the point we're trying to make is the payload weight on it's own will have very little bearing on how far it travels. The important factors for that are ascent/descent rates and burst height.
[19:26] <mfa298> if you want it to burst it's probably only a couple of km.
[19:27] <Picovid> and if I use a latex balloon mfa298?
[19:27] <nats_laptop> B49 drifted by 2k lower
[19:27] <nats_laptop> for thosewho track
[19:28] <LeoBodnar> wow
[19:28] <LeoBodnar> TCXO fail?
[19:28] <nats_laptop> no
[19:28] <mfa298> use the burst calc link I gave above for latex balloons.
[19:28] <nats_laptop> it got -20 to -40 in minutes
[19:28] <nats_laptop> I'm now on the same range as yesterday
[19:28] <nats_laptop> 499kHz + 1kHz usb
[19:28] <nats_laptop> with heay drift when txing contestia
[19:29] <Picovid> Ty mfa298 I will look into it
[19:29] <mfa298> Picovid: foil balloon with 50g payload burst at just above 3km https://www.philcrump.co.uk/CRAAG1_Camera_Launch_26th_November
[19:30] <mfa298> I helped with a similar launch using 2 balloons (although I can't quickly see a weight) which was supposed to burst, but ended up floating away
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[19:30] <mfa298> https://www.philcrump.co.uk/VERTIGO
[19:33] <mfa298> and that one only made it to 1.5km looking at the spacenear screenshot
[19:34] <Picovid> I have been experimenting with model rockets. I know the altitudes and duraion of these are small fry to you guys! thats why it is so exiting and intriguing to me! I am looking for a starting point even if it is a bit pathetic its something to work on!
[19:36] <Picovid> Thanks for the links mfa298. Interesting!
[19:38] <chrisg7ogx> i'm seeing partials at freq 434.497.900
[19:39] <mfa298> the normal way to start out is making a basic tracker which you can do fairly cheaply and for slightly more experimental try something on 868MHz. (you can run something low bandwidth with more power but there's a duty ccycle limit
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[19:40] <mfa298> it would certainly be interesting if you can get video to work. A few of us have talked about it but not done anything yet
[19:40] <craag> Evening
[19:40] <Picovid> I watched PYSY and todAY ON SPACENEAR.US AND realy hoped for a new reccord for them. i am VERY new to this but it was so very exciting! Like the 7 minutes of terror landing curiosity on Mars!
[19:43] <Willdude123> Wouldn't it be cool to have a quadcopter filming a launch? And to have it follow the balloon up to a certain height?
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[19:43] <SpeedEvil> https://www.youtube.com/watch?v=ZwwS4YOTbbw - is related
[19:46] <Picovid> Im no good at coding mfa298! Ive looked at the arduino/NTX2 guide on UKHAS Wiki and its all code to me. I like the idea of a somple wireless cam on 2.4GHz and a high gain antenna. I have a bit of experience with antennas! If its diferent then I would love to give it a go. if it fails then i will have tried! If it succeeds I will have a grin like a cheshire cat!
[19:46] <LeoBodnar> "the 7 minutes of terror..." UKHAS really need NASA style spin-doctors
[19:46] <edusupport> Somone has upset sdrsharp http://sdrsharp.com/
[19:47] <Picovid> :-) Leo Nice work!
[19:47] <LeoBodnar> ta!
[19:48] <Maxell> edusupport: it was worse https://i.imgur.com/49PVJFj.png
[19:48] <mfa298> Picovid: having a tracker on board is likely to be useful so you know where the balloon is and where it lands.
[19:48] <Picovid> You have inspired me so much to get involved. Thank you! Very excited and full of ideas that might not work but I wont know unless I try!
[19:49] <craag> Picovid: Welcome to the club ;)
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[19:50] <edusupport> mmm
[19:52] <LeoBodnar> cool Picovid :)
[19:58] <Picovid> I know you guys like tracking and all that but how cool would it to just see an image of a land mass at some altitude and know where it is because you are so familiar with it? Or like standing under the stars looking up and knowing where you are and what time it is and where the constelations are and where to look for them. Live video from a faily high altitude ballon should provide some recognisable visual information if laun
[20:00] <SpeedEvil> http://www.dx.com/p/yd-yd928-mini-2-4g-radio-control-4-ch-quadcopter-r-c-aircraft-3d-tumbling-w-6-axis-gyro-white-311969 - cunning. (6 axis gyro)
[20:01] <mattbrejza> https://www.youtube.com/watch?v=5xrf5Bqe0Nw Willdude123
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[20:05] <chrisstubbs> mattbrejza, wow thats what you call a recovery
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[20:05] <Picovid> I would mount a 2.4GHz parabolic dish on my telescope and try to track it visually. Dont get much lign of sight than that!
[20:07] <LeoBodnar> what's the legal status of flying an RC copter over somebody's property?
[20:08] <LeoBodnar> didn't they say in the vid they used copter to get around asking for property access?
[20:08] <mfa298> unless you get one of the rare days with almost no wind you might struggle only tracking it from home.
[20:09] <mfa298> although depending on where you are it could be interesting to get some other interested people involved and try receiving from a few nearby locations.
[20:09] <Picovid> I used to fly a copter in the local football ground with their prmission and got insurance from SMAE for about £30 a year.
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[20:11] <Willdude123> mattbrejza, ah. Someone did it already :(
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[20:12] <Willdude123> I guess you could take it a step further by having it pull telemetry
[20:13] <Picovid> Thanks mfa298. Anyone near Southend-on Sea interested? I can get a reciever and dish for about £60-£70 which i would pay for to collaborate with some fun collaborations!
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[20:15] <craag> Picovid: There's several active guys around the Essex area
[20:15] <Picovid> I really want to give this a try! Go into the unknown and see what happens and what we can learn! If it fails then weve given it a damn good go!
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[20:16] <G4MYS-Andy> 73 +KN de G4MYS es G4MYS-2.
[20:16] <Picovid> Can you point them in my direction please craag! tim.tux@btinternet.com Ta!
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[20:18] <craag> Picovid: Hang out on here a bit and you'll come across them
[20:19] <Picovid> WILCO craag
[20:19] <Picovid> Ty
[20:19] <mfa298> Picovid: chrisstubbs is probably one of the more active localish people.
[20:19] <mfa298> if you keep an eye on the mailing list you'll see when people are launching and when
[20:20] <Picovid> youve all been great and so very helpful. thank you all
[20:21] <craag> np! We're keen to see people try new things!
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[20:25] <Picovid> I think I might try to experiment and come up with a payload and balloon for my 2.4Ghz video idea and experiments but allow some lift and perhaps like to collaborrate with benefit from a tracker and experience from someone with more experience in ballooning.
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[20:26] <craag> Yeah keep an eye on the mailing list, and if you see a launch near you, ask if they'd mind if you came along
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[20:27] <craag> They often won't, and may even be glad of a helping hand
[20:27] <Picovid> wilco caag ty. Im keen and excited to learn!
[20:28] <cm13g09> evening craag, mfa298
[20:30] <craag> evening cm13g09
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[20:33] <chrisstubbs> Picovid, I'm planning a launch next month but its a STEM thing at a school so you might not be able to come along to that one
[20:33] <chrisstubbs> Like craag said keep an eye on the mailing list, it wont be long until the next :)
[20:33] <RB> hi - i asked about any urther information about the b-47 balloon earlier and was sent a link to a page detailing all the launches by the same guy.... but I lost the webpage - can anyone help?
[20:34] <chrisstubbs> http://www.leobodnar.com/balloons/
[20:34] <chrisstubbs> LeoBodnar, is your guy
[20:34] <RB> great thanks
[20:34] <RB> Im a teacher - have you done STEM things in schools before
[20:34] <chrisstubbs> This is the first one for me, others may have though
[20:35] <RB> do you know how you are going to do it?
[20:35] <RB> ie what you will cover
[20:35] <RB> what they will do etc
[20:35] <RB> just out of interest
[20:35] <chrisstubbs> Turn up, give a presentation, launch, track online :)
[20:36] <Picovid> If you would like some help Chris I would be happy and greatful to assist and learn from your experience. tim.tux@btinternet.com
[20:37] <chrisstubbs> Sure Picovid, are you signed up for the mailing list?
[20:37] <Picovid> doing it now!
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[20:48] <Picovid> Joined up Chris just waiting for conformation now! :-)
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[20:58] <Picovid> I think B-49 might benefit from some meteor burst or ionospheric propgation on a lower frequency like 173.7-174MHz Leo for tracking! I have done this near the 2M band! 143.050 MHz
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[21:00] <Picovid> now thats a challenge radio location via meteor burst and ionospheric propagation!
[21:00] <Maxell> Picovid: intresting place for telemtry. What modes and how much power?
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[21:01] <SpeedEvil> Moonbounce
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[21:02] <myself> heh
[21:03] <myself> ELF
[21:03] <myself> trail a longwire
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[21:04] <Picovid> I used a simple jpole/super J with graves which has silly power but I wonder if a balloon launched while there is 2M propagation during a solar storm, meteor shower or moonbounce then who knows. I got pings off the ISS, moonbounce and meteors near the 2M band . All good fun!
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[21:06] <Picovid> I think 173Mhz should propagate quite well with good conditions! One for the weak signal guys!
[21:13] <LeoBodnar> well how about just bouncing signal off the balloon itself?
[21:13] <LeoBodnar> it's conductive
[21:14] <LeoBodnar> 434MHz should have around right wl
[21:14] <ulfr> A proper radar would see it. :>
[21:14] <RB> Hi Leo - I've just been looking at your balloon projects - impressive
[21:14] <ulfr> so I guess bouncing it off a balloon could be cool
[21:14] <LeoBodnar> thanks RB
[21:15] <ulfr> at first I thought the '12gr' was a typo for '12oz' at first, until I saw the transmitter.
[21:15] <RB> where would you reccomend I look to for a tutorial to do such things.... :)
[21:15] <LeoBodnar> your dreams? :)
[21:15] <LeoBodnar> there isn't any
[21:16] <LeoBodnar> well UKHAS wiki is the best we have
[21:16] <LeoBodnar> and Upu and daveake blogs
[21:16] <LeoBodnar> and other blogs
[21:16] <LeoBodnar> KT5TK
[21:16] <LeoBodnar> it's a mish-mash
[21:16] <RB> i'll have a look, thanks
[21:17] <LeoBodnar> have you seen wiki?
[21:17] <Picovid> If the balloon were a ground plane for the Tx with line of sight that might work. Lower frequencies bounce off meteors and ionosphere better! 173.4-174MHz is licence free airborne in the uk so better chance for meteor burst cooms I think
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[21:17] <RB> yes ive seen wiki, will investigate in more detail
[21:17] <LeoBodnar> RB http://ukhas.org.uk/start?do=index it's very eclectic but very useful nontheless
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[21:21] <dutchtux> hoi
[21:22] <mfa298> Picovid: are you sure 173.4-174 is allowed airborne - I can't see it quickly in ir2030
[21:22] <Picovid> there are regular and predictable meteor showers and low power radio modes using meteor burst comms.
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[21:23] <Picovid> Radio Location: 173.7  174 MHz and 458.9625  459.1000 MHz 10 mW ERP (Effective Radiated Power) 12.5 kHz or 25kHz bandwidth from the UKHAS WIKI!
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[21:23] <Picovid> http://ukhas.org.uk/communication:licence_exempt
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[21:24] <Gagarin_HORIZ> Hi all! Thank you so much to everyone who helped with tracking today!
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[21:25] <Gagarin_HORIZ> I don't suppose anyone has a screen shot of the final flight path? I went to grab one from the tracker but I was too late and it had been cleaned?
[21:26] <mfa298> Gagarin_HORIZ: should still be there
[21:27] <mikestir> mfa298: it is - if "affixed to a bird" :)
[21:28] <mfa298> although looking at ir2030, 169.4 -169.475, 500mW, 10% D/C: Use is limited to remote meter reading.
[21:28] <mfa298> or 1% D/C: Use is limited to asset tracking and tracing.
[21:28] <RB> has anyone used a dongle in a pc to track a real flight?
[21:28] <Gagarin_HORIZ> Ah, my wife's laptop was not displaying it correctly in IE. I installed Firefox and it works fine.
[21:29] <craag> RB: Many of us :)
[21:29] <craag> I used an RTLSDR to chase a couple of times
[21:29] <mfa298> Gagarin_HORIZ: spacenear.us has had some issues since google changes the maps api. You may find habhub.org/mt or http://habmap.philcrump.co.uk/ work better
[21:29] <RB> what sort of range do they have
[21:30] <craag> Gagarin_HORIZ: Try: http://habmap.philcrump.co.uk/?vehicles=GGRN
[21:30] <RB> or is that dependent on antenna
[21:30] <craag> RB: Very dependent on antenna
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[21:31] <craag> They're a bit prone to being overloaded by local interference, and not especially sensitive. HAB Supplies sells a filtered preamp that fixes both of these issues.
[21:31] <craag> But I've chased with a magmount, and tracked from home with a yagi, with jsut the dongle.
[21:32] <mfa298> Picovid: you may want to grab a copy of IR2030 as that's the definitive list of what's allowed in the UK. As mikestir mentioned I can only see references for 174MHz being allowed airborne if attached to a bird.
[21:33] <LeoBodnar> 173 range is not legally useful for tracking unless it is stuck to a bird
[21:33] <Picovid> I think if it is possible with 10mw of power that radio propagation by some means could greatly enhance the range of balloon tracking where there are no nearby recievers. Dont know if its possible but its a nice idea I think!
[21:35] <LeoBodnar> HF or microwave are your fiends
[21:35] <LeoBodnar> but HF needs very efficient antennas
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[21:35] <Laurenceb_> can the bird be dead?
[21:35] <mfa298> you could possibly do something with that bit of 169MHz space I mentioned. I think we could definetly claim remote asset tracking but that's only 1% duty cycle
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[21:35] <mikestir> lol Laurenceb_
[21:35] <mikestir> that could well be a loophole - it just says attached to a bird
[21:35] <LeoBodnar> nice plumage
[21:36] <mikestir> it doesn't say the bird has to be doing the flying
[21:36] <mfa298> if you stick a temperature sensor in the telemetry does that count as remote meter reading ?
[21:36] <Picovid> WILCO mfa298 and Leo thanks for the info and your experience! Could it be a stuffed wren robin or sparrow?! LOL
[21:37] <mfa298> although 169/174 probably have a similar downside to 869. most AR rigs wont cover that so good receivers are limited tothe FCD Pro+ (assuming that's not where it's gap starts)
[21:37] <mikestir> http://en.wikipedia.org/wiki/Project_Pigeon
[21:38] <Picovid> Lol!
[21:38] <cm13g09> mikestir: nice find :P
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[21:39] <cambazz> hello. any recomendations for a fsk transmitter/receiver
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[21:39] <cambazz> and what would be the expected range
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[21:41] <mikestir> cambazz: for hab telemetry or something else?
[21:42] <cm13g09> mikestir: your find has led me to a page stating 'In 2007 Iranian authorities captured 14 squirrels, which were allegedly carrying spying equipment. The story was widely dismissed in the West as "nuts".'
[21:42] <mikestir> lol
[21:42] <mikestir> you know about the russian(?) bomber dogs?
[21:42] <cm13g09> yes
[21:44] <Picovid> So is anyone interested in a a Project Pigeon HAB on 173MHz? I bet Dave Akerman would be up for it! Its a long shot and would be a first! Ill get the stuffed pigeon!
[21:45] <daveake> I bet he wouldn't :/
[21:46] <LeoBodnar> get a norwegian parrot
[21:46] <LeoBodnar> and he has cats
[21:46] <Picovid> that parrot is dead! It onlt transmits cos its nailed to a stick!
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[21:47] <daveake> odd or even parroty?
[21:48] <Picovid> I like different thats all dave and exploring the unknown!
[21:48] <cambazz> mikestir: for hab telemetry. yes, i am looking for different options
[21:49] <cambazz> i thought a fsk receiver transmitter pair would be the cheapest. but range on those are like 4000m
[21:49] <Picovid> Whats the difference between a spudnik and a parrot in space?
[21:49] <cambazz> what
[21:49] <cambazz> parrot is fried?
[21:49] <mikestir> cambazz: their quoted range is for use on the ground
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[21:50] <Picovid> so was the spud
[21:50] <cambazz> mikestir: so, do people just use these fsk transmitters, and what would be the range? also do we use stock antennas or make special antennas both on transmitter on the ground
[21:51] <cambazz> i understand i can use a booster on the transmitter also
[21:51] <mikestir> cambazz: the ntx2b is the favoured module. you can use an rfm22b or similar though
[21:51] <mikestir> most people use an amateur radio rig for receive
[21:51] <mikestir> you need the narrow bandwidth
[21:51] <nats`> cambazz the range of FSK heavily rely on the BW and so the bitrate you have
[21:52] <cambazz> well, so what would be the range with this ntx2b ?
[21:52] <mikestir> limited by the curvature of the earth
[21:52] <cambazz> you mean lower the bitrate longer the range?
[21:52] <Picovid> icom pcr-1000 any good for dl-fldigi
[21:52] <mikestir> cambazz: yes
[21:52] <cambazz> i used to have an icom, but if i do it now i would probably do it with rtl sdr and gnu radio
[21:53] <mikestir> as long as you narrow your receiver bandwidth accordingly
[21:53] <cambazz> mikestir: and it is virtually limited by curvature of the earth?
[21:53] <cambazz> we are talking about 433 mhz right?
[21:53] <mikestir> cambazz: I would suggest avoiding reinventing the wheel. use whatever FSK tx you want to generate 50 baud RTTY and receive it using an SSB capable receiver, decode with fldigi
[21:54] <Upu> cambazz has been 500 miles at altitude
[21:54] <Upu> 434Mhz @ 10mW
[21:54] <Upu> you don't need a "booster2
[21:54] <Upu> what country are you in ?
[21:54] <cambazz> turkey
[21:54] <Upu> not sure what the legislation is over there
[21:55] <Upu> but european ISM band is 434Mhz
[21:55] <cambazz> mikestir: so we can not use the receiver that is like a module, like ntx2b - but we need a special SSB capable receiver?
[21:55] <cambazz> so we need a SSB receiver.
[21:56] <Upu> the NRX2 the reciever officially for the NTX2B isn't sensitive enough
[21:56] <Upu> you can use a RTL USB stick, funcube dongle etc
[21:56] <cambazz> are there software for the rtl stick?
[21:56] <cambazz> i mean for this purpose
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[21:57] <Upu> you use something like SDRSharp -> output the audio into -> dl-fldigi
[21:58] <cambazz> so just for check - there is no way to use a fsk tx/rx pair that are like 3-5 bucks - but one can use tx and a ssb receiver
[21:58] <cambazz> right?
[21:58] <Upu> correct
[21:58] <Upu> but
[21:58] <Upu> check your local legislation
[21:59] <cambazz> http://www.ebay.com/itm/Tecsun-PL-600-SSB-PLL-World-Band-Radio-Receiver-FM-MW-SW-FREE-GIFT-/110968559057
[21:59] <cambazz> does that count as a ssb receiver?
[21:59] <Maxell> It's SSB but won't do the 430 MHz band/
[22:00] <Maxell> cambazz: currently also UKHASnet -- it uses the RFM69HW modules at 869.5 MHz
[22:00] <Maxell> At the moment only decoding by RFM69HW is supporterd.
[22:00] <cm13g09> just reading back, if that spud was fried.... it would explain why there were so many chips in the finished product ;)
[22:00] <cambazz> ok, so where can i get a ssb receiver that does 433 mhz
[22:01] <Upu> Yaesu FT-817, ICOM IC-10R, Funcube dongle , EZCAP DVB stick
[22:01] <Maxell> cambazz: rtlsdr with HABamp or FunCube dongle pro plus and good antenna would be your best option
[22:01] <cambazz> what is the habamp
[22:02] <cambazz> i got a hf upconverter for rtl sdr
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[22:03] <cambazz> habamp is a lna for rtl sdr?
[22:03] <craag> cambazz: Yeah, also has a SAW filter for the 434MHz HAB Band
[22:04] <cambazz> nice nice.. :)
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[22:05] <Picovid> Was a very cool experiment. cm13g09! Leo and Dave have inspired me! I want to explore near space but I would like to do something different and explore new things! Beaurocraccy gets in the way! I understand rules and regultations to protect from interfereance! I want to try to get live vidie on 2.4GHZ from a HAB! Simple! If it involves a dead parrot, pigeon or pttoato so be ot!
[22:05] <Ted_PL> Hi, I need B-49 frequency.
[22:05] <nats`> 434.5
[22:05] <DL7AD> 434.500
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[22:06] <DL7AD> 3khz below at night due to low temperatures
[22:06] <daveake> We need a LeoBot
[22:06] <cambazz> i just made a msp430 circuit reading barometer and temparature - and i want to send it with a regular flying baloon - no gps no camera or anything but just record the altitude vs temp. so thats why i was asking for the fsk transmitter
[22:06] <nats`> but last time I got it it was more 434.498
[22:06] <daveake> It'll be simpl
[22:06] <daveake> "Is Leo flying?" --> Yes
[22:06] <cambazz> how much is that ntx2b cost?
[22:06] <Ted_PL> what kinde of modulation?
[22:06] <daveake> "What frequency B-xx?" 434.500
[22:06] <arko> daveake: lol
[22:06] <DL7AD> Ted_PL: contestia 8/250
[22:06] <Ted_PL> thanks
[22:07] <DL7AD> Ted_PL: do you have RxID activated?
[22:07] <Upu> if you want to know what frequency Leo is on just check the RSGB Bandplan : http://i.imgur.com/aUtXiJ9.png
[22:07] <nats`> just checked Ted_PL
[22:07] <DL7AD> tune margin to 16 due to heavy drift, right?
[22:07] <nats`> last freq on my receiver 434.497MHz
[22:07] <nats`> USB at +1.5kHz
[22:07] <Ted_PL> I use this: http://v2.sdrspace.com/Map.aspx
[22:08] <Picovid> Does doppler effect the transmotion?
[22:08] <daveake> nice Upu :)
[22:08] <DL7AD> tune margin to 16 due to heavy drift, right?
[22:08] <Upu> wondered how long it would take people to notice :)
[22:08] <nats`> yep
[22:08] <DL7AD> thx nats`
[22:08] <nats`> between start of the contestia and the end about 300Hz drift
[22:08] <Maxell> Upu: nice https://i.imgur.com/aUtXiJ9.png :P
[22:08] <Maxell> i like that bandplan
[22:11] <cambazz> so what is this an aliance of sdr receivers?
[22:13] <nats`> I personnaly don't use SDR for tracking balloon
[22:13] <nats`> mainly because you need more sensitivity than bandwidth
[22:14] <cambazz> have you seen those chinese / russian made new sdrs. they are only upto 1ghz
[22:14] <cambazz> but nicely boxed and stuff
[22:14] <cambazz> nats: i use sdr for other things and they can be made to be sensitive
[22:15] <nats`> you know the range of a SDR doesn't really reflect it's quality
[22:15] <nats`> I have a bunch of SDR stuff here from rtl sdr dongle to USRP board
[22:15] <Gagarin_HORIZ> Quit
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[22:15] <cambazz> nats what are the other options? to sdr what concerns me is that i would need a computer
[22:15] <nats`> the first things boring me is the extra software running
[22:16] <cambazz> yes, that bores me too
[22:16] <nats`> with the virtual audio link
[22:16] <cambazz> it consumes shit alot of battery too
[22:16] <nats`> I find easier to tune a real receiver than a sdr stuff
[22:16] <cambazz> but a usrp is too costly
[22:16] <cambazz> can you show me a real receiver that is sub 500usd
[22:16] <cambazz> maybe?
[22:16] <nats`> + on many SDR stuff you suffer from the IQ unbalance
[22:16] <nats`> yep
[22:16] <nats`> yaesu FT790R if you want UHF 430MHz
[22:16] <nats`> in all mode
[22:17] <nats`> sometime good used ft817
[22:17] <nats`> VR5000
[22:17] <nats`> etc...
[22:17] <Maxell> cambazz: well yaesu FT-817 is a nice little radio
[22:17] <nats`> what bands are you interested in ?
[22:17] <Maxell> but it does need a computer
[22:17] <nats`> and what mode ?
[22:17] <Maxell> all radios do
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[22:18] <cambazz> also I got a pair of these: http://www.dorji.com/docs/data/DRF4432D20.pdf - would i have any luck with these on high altitude
[22:18] <cambazz> nats: well - probably hf and vhf
[22:19] <nats`> for RX or tx ?
[22:19] <cambazz> just rx
[22:19] <nats`> if you want RX only maybe you can grab a VR5000
[22:19] <nats`> it's not a killer receiver but great
[22:19] <nats`> everyband every mode
[22:19] <nats`> but grab one with the DSP option !
[22:19] <nats`> it's from yaesu
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[22:19] <Upu> thats just an SI4432 cambazz
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[22:20] <nats`> http://www.ebay.com/itm/Yaesu-frg-9600-Communications-Receiver-AM-FM-SSB-60-905Mhz-/111339261659
[22:20] <nats`> maybe check that one
[22:20] <nats`> I don't know it
[22:21] <cambazz> yes this ftl 817 is nice
[22:21] <Upu> 817 is old but a lovely radio
[22:21] <nats`> I think at first you can forget about HF unless you have a house and want to deploy real aerial
[22:21] <nats`> FT817 is really nice
[22:21] <Upu> Yaesu really need to make a 817MKII
[22:21] <nats`> FT857 and FT897 too
[22:21] <nats`> ohhhh cambazz I have the solution for you
[22:22] <nats`> checkl for a FT857 with burnt UHF transistor
[22:22] <cambazz> nats: can you show an example of real aerial?
[22:22] <nats`> that's how I got mine
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[22:22] <nats`> the UHF power transistor often burn
[22:22] <nats`> in HF it's a wire of tens of meter
[22:22] <nats`> to be simple
[22:22] <cambazz> hah thats nice nats but i live far away. getting a radio like this from ebay is not possible unfortunately :)
[22:22] <nats`> you don't want HF aerial unless you know what you do
[22:22] <nats`> cambazz why ?
[22:22] <Upu> cambazz https://dl.dropboxusercontent.com/u/63720513/Images/HAM/Rotator/IMG_0796.JPG
[22:23] <cambazz> they wont ship, it will get stuck in custom etc
[22:23] <cambazz> upu: that also turns i assume
[22:23] <cambazz> wow
[22:23] <nats`> Upu what band ?
[22:23] <cambazz> i used to have a technician class ham licence but it is now expired
[22:24] <Upu> yagi is 434
[22:24] <Upu> colinear is just a Watson W50
[22:24] <Upu> so 2m/70cms
[22:24] <Upu> yes it turns
[22:25] <nats`> oky I was surprised I thought it was HF antenna :)
[22:25] <Upu> heh no :)
[22:25] <RB> im suprised you cant get cheap receivers imported from China
[22:25] <RB> to UK
[22:25] <Upu> 19 element Tonna
[22:25] <RB> from ebay
[22:29] <RB> hmmm
[22:29] <Upu> there are lots of nice ones but few do SSB
[22:30] <Upu> I bought a Wuoxon last week its really nice but doesn't do SSB
[22:30] <ulfr> SSB is rare in hts
[22:30] <ulfr> and even on mobile rigs as well
[22:30] <ulfr> Which is annoying.
[22:30] <nats`> on mobile yaesu high end and icom do it
[22:30] <ulfr> I could use an SSB ht.
[22:30] <nats`> but low end will not
[22:30] <ulfr> nats`: yeah, that's what I meant.
[22:31] <ulfr> I have an IC706 with ssb
[22:31] <ulfr> it's nice, but it lacks UHF.
[22:31] <ulfr> Which annoyes me a bit.
[22:31] <nats`> which is silly SSB is great for mobile
[22:31] <ulfr> yeah
[22:31] <nats`> much less power burnt
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[22:31] <Upu> ICOM IC-10R if you can get one
[22:31] <Upu> RX only
[22:33] <nats`> IC-R10 ? no ?
[22:33] <nats`> uhhmm nice one
[22:34] <Upu> yes
[22:34] <Upu> IC-R10
[22:34] <Upu> sorry
[22:34] <Upu> maybe thats why I can never find one on ebay :)
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[22:35] <nats`> be patient with a friend after 2 years of waiting we found 2 camera at 250$ each
[22:35] <nats`> they cost more than 5k$ used !
[22:35] <Upu> they keep popping up occasionally
[22:35] <cambazz> hey those noaa weather satellites, do they go all around the world
[22:35] <Upu> I have one here but its currently broken
[22:35] <Upu> waiting on some spare parts
[22:36] <fsphil> anything not in geostationary orbit goes all around the world to some degree
[22:36] <fsphil> except maybe the poles
[22:37] <cambazz> yeah so i wonder if i can grab any satellites from here but not sure
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[22:37] <nats`> Upu what is the good price for a r10 ?
[22:38] <Upu> what people are willing to pay for them I guess
[22:38] <Upu> they seem to go for about £100
[22:38] <cambazz> is there an open source satellite tracking software
[22:38] <nats`> oky I note it :)
[22:38] <Upu> they are much less sensitive than the 817
[22:38] <Upu> but much more portable
[22:38] <nats`> for a real handheld it seems correct
[22:38] <Upu> its only a scanner
[22:38] <nats`> a 817 is mobile but with a car battery :p
[22:38] <Upu> heh
[22:39] <fsphil> there is software to decode some of the older NOAA satellites
[22:39] <Upu> well with 2 trackers 1khz apart
[22:39] <Upu> the 10R couldn't differentiate
[22:39] <Upu> but the 817 had no issues
[22:39] <fsphil> not sure if the new ones still transmit that format
[22:39] <fsphil> APT I think it's called
[22:39] <Upu> tbh FCD is your best bet
[22:39] <Upu> for the price cannot be beaten but not very portable
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[22:52] <Willdude> Mfw I discover merge sort http://i.imgur.com/FugkG.gif
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[23:11] <LeoBodnar> B-49 hit Andorra right in the middle
[23:11] <DL7AD> i just was about to write this :D
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[23:13] <DL7AD> rofl....
[23:13] <nats`> Lancez la Vache !
[23:13] <nats`> English are coming :D
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[00:00] --- Sun May 4 2014