highaltitude.log.20141228

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[00:39] <Lunar_Lander> good night!
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[00:59] <chrisstubbs> Oh right, Colin Furze is actually launching the fireworks from a HAB in flight
[01:00] <chrisstubbs> that sounds irresponsible
[01:04] <Myself> Well the evidence is right there..
[01:04] <Myself> If it's illegal he'll find out in a hurry :P
[01:07] <chrisstubbs> For some silly reason I assumed he launched the fireworks from the ground and the HAB filmed them
[01:08] <chrisstubbs> but I guess that would make for a boring 99.5% of the flight
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[01:25] <Ian_> Well, it's one way to ensure proper co-location.
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[01:28] <SpeedEvil> I looked and it depends
[01:28] <SpeedEvil> If the balloon is under 2m in diameter - there is no requirement to notify a launch
[01:29] <SpeedEvil> launching fireworks - small ones - from such a balloon seems to be 'not illegal'
[01:45] <chrisstubbs> Good choice of words ;)
[01:45] <chrisstubbs> Any pebble owners awake?
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[01:50] <tweetBot> @M6EDF: Started a pebble app to display HAB data from habitat. Search "HABble" on pebble store to try it :) #ukhas #pebble http://t.co/G43mPNMydo
[01:57] <chrisstubbs> Laters
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[01:58] <HF_ATL> good night all
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[02:03] <myier> it's fun to see ken biba on UKHAS mails, he's like the dave of rockets
[02:04] <myier> I mean probably the most known amateur, he has won the 100'000ft contest
[02:04] <theRealSIbot> In real units: 000 ft = 0.00 m
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[02:28] <adamgreig> myier: oh which group was he with?
[02:39] <myier> adamgreig: I know him from arocket, the amateur rocketry mailing list
[02:39] <myier> (not personally)
[02:57] <myier> I think you meant which group of rocketeers now that I read your email
[02:57] <myier> I don't remember that
[02:57] <myier> but it shouldn't be very hard to find it on google
[03:05] <myier> he signs his mails with Novarum, Inc.
[03:06] <myier> good night
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[05:40] <SpacenearUS> New vehicle on the map: 03AETH31-8 - 12http://habhub.org/t/?focus=AETH31-8
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[09:10] <SpacenearUS> New vehicle on the map: 03G-09 - 12http://habhub.org/t/?focus=G-09
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[09:23] <G0WXI-Graeme_> Good Morning, I've tried on #habhub, but all is quiet, is there anyone about who could approve a flight doc for me please G-09 dd847c7277324bd4158a0f0734a40211 (doc id) , Thanks
[09:28] <Darkside> dd847c7277324bd4158a0f0734a40211
[09:28] <Darkside> humm
[09:28] <Darkside> oh wait wron gchan
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[09:55] <SpacenearUS> New position from 03EDUPIC11 after 038 hours silence - 12http://habhub.org/t/?focus=EDUPIC11
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[10:00] <jededu> Are you launching today G0WXI-Graeme
[10:02] <jededu> !flights
[10:02] <SpacenearUS> 03jededu: Current flights: 03G-09 10(0211), 03B-64 434.500 Contestia 64/1000 10(3afe)
[10:02] <jededu> !payload G-09
[10:02] <SpacenearUS> 03jededu: Payload 03G-09 10(0211) 03$$G-09 - 03Primary - 03434.51 MHz USB 03RTTY 100/470Hz ASCII-7 none 2
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[10:22] <G0WXI-Graeme_> jededu, yes, flight now approved, G-09 will launch around 11:30
[10:23] <jededu> Ok thx
[10:23] <jededu> Its a floater yes?
[10:29] <G0WXI-Graeme_> yes, foil pico floater
[10:30] <jededu> What alt do you expect, I was going to launch but looking at the predictor trackers look a bit scarce
[10:48] <G0WXI-Graeme_> will be about 5.5km, yes different track than usual today, there's some activity in northern spain, so hopefully it will get picked up if it goes that far
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[11:06] <G0HDI> Ready to track at Calshot (Nr Southampton)
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[11:24] <SpacenearUS> New position from 03AETH32-4 after 0318 hours silence - 12http://habhub.org/t/?focus=AETH32-4
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[11:56] <G0HDI> Are we talking 434.510 for G-09 please?
[11:58] <G8KNN> G0HDI: yes
[11:58] <G0HDI> tnx. nothing yet
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[12:10] <G0HDI> Ok, it helps to have the correct antenna switched in hi. We're in business now
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[12:30] <myier> I'm in the south of france, but I don't have a large field of view, maybe tonight I'll be able to pick it up if the timing and position are right
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[12:31] <myier> if it follows the current trajectory I won't be able to catch it
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[12:34] <chrisstubbsM6EDF> adamgreig, updated my pebble app, G-09 broke it :P
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[13:11] <bonehead> Hello
[13:36] <myier> hello
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[14:39] <SpacenearUS> New vehicle on the map: 03KD5GOM-11 - 12http://habhub.org/t/?focus=KD5GOM-11
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[14:49] <lz1dev> !hysplit add G-09
[14:49] <SpacenearUS> 03lz1dev: Added 03G-09 to defaults
[14:49] <lz1dev> !hysplit rerun
[14:49] <SpacenearUS> 03lz1dev: Running HYSPLIT jobs for all defaults. Hold on to your hats
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[15:05] <Geoff-G8-> !dial g-09
[15:05] <SpacenearUS> 03Geoff-G8-: Latest dials for 03G-09 10(0211): 03434.5098 MHz, 434.514563 MHz, 434.5 MHz, 434.51034 MHz, 434.509891 MHz, 434.5102 MHz, 434.5095 MHz, 434.51444 MHz, 434.51079 MHz, 434.514042 MHz, 434.513482 MHz
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[16:33] <Stork> hello I need help to get started with dl-fldigi. I have a funcube dongle pro +. I'm transmitting data with a NTX2 on 434Mhz. Using SDR# I can see the waterfall on 434MHZ
[16:33] <Stork> but using dl-fldigi I see nothing
[16:33] <Stork> my settings for dl-fldigi:
[16:34] <Stork> http://postimg.org/image/u8z2d0ixr/
[16:36] <Stork> in SDR# it looks like this:
[16:36] <Stork> http://postimg.org/image/puwott4ot/
[16:36] <Stork> in dl-fldigi its completely quiet, looking like this:
[16:36] <Stork> http://postimg.org/image/xsa7fhrep/
[16:37] <Upu> its not getting to dl-fldigi
[16:38] <Upu> what do you have set under SDR for Output ?
[16:38] <Upu> oh
[16:38] <Upu> click
[16:38] <Upu> ok
[16:38] <Upu> you can't capture direct from the FCD
[16:38] <Stork> does SDR have to be started at the same time as dl-fldigi? I thought dl-fldigi controlled the Funcube?
[16:38] <Upu> so it needs to go like this
[16:39] <Upu> SDRSharp used the FCD and outputs the Audio to a Virtual Audio Cable or such
[16:39] <Upu> Dl-Fldigi then selects that Virtual audio cable as its source
[16:39] <Upu> and it should work
[16:39] <Stork> hmm virtual audio cable... ok I'll google it and I'll be back in a couple of minutes :)
[16:39] <Upu> well
[16:39] <Upu> thats paid for
[16:39] <Upu> there are free alternatives
[16:39] <Upu> 1 sec
[16:40] <Stork> so SDR# must be ON?
[16:40] <Upu> yes
[16:40] <Stork> aha....!
[16:40] <Upu> http://ukhas.org.uk/guides:sdr_tracker?s[]=sdr
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[16:40] <Upu> See Decoding the Payload bit
[16:41] <Stork> alright! *reading*... thank you!
[16:41] <Upu> have a go at that sorry I need to afk now
[16:41] <Stork> no probs thank you VERY much! :)
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[16:46] <Lunar_Lander> hello
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[17:26] <li4m0> Hey everybody. I have a usb dongle which I will be using as a sdr and in waiting for my antenna to be delivered. Is a preamp between antenna and dongle essential for receiving a decent signal?
[17:31] Nick change: heathkid|2 -> heathkid
[17:31] <fsphil> depends
[17:31] <Geoff-G8-> Its not essential, but recomended
[17:32] <Geoff-G8-> how much cable between aerial and dongle
[17:33] <fsphil> the rtlsdr dongles are not the most sensitive, and the preamp can help with that
[17:33] <Geoff-G8-> and what sort of aerial are youplanning on ?
[17:34] <fsphil> a 70cm saw filter is probably more important, filters out any strong out of band signals
[17:34] <fsphil> the habamp is both an amp and filter
[17:35] <li4m0> About 2 metres cable
[17:35] <Geoff-G8-> OK not enougth loss in the cable to worry about then, what sort of aerial ?
[17:36] <li4m0> Watson mini mag 270 for chase car so I can mount it on the roof
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[17:37] <Geoff-G8-> Yes the Amp will help with that then, also if you have strong signals outside the 70cms band then the filter will also help
[17:37] <li4m0> I might as well grab one then cheers.
[17:38] <fsphil> I've used that antenna with a FCD+ directly before, but that has a built-in filter
[17:39] <li4m0> I would like to also help track other balloons from home. Do you think I will have much success with the above antenna from a window (about 500 ft above sea level with clear view for miles from the front me my house)
[17:39] <theRealSIbot> In real units: 500 ft = 152 m
[17:39] <fsphil> you'll have no trouble with anything within 200km and line of sight
[17:40] <Geoff-G8-> Where abouts in th3e country ?
[17:40] <li4m0> About 8 miles north of Birmingham but I can see the city centre clearly
[17:40] <Geoff-G8-> No problem then
[17:41] <li4m0> Great now just got to wait for antenna to come
[17:41] <Geoff-G8-> but you could well get interference without the pre-amp/fliter if your overlooking Birmingham then so yes
[17:42] <li4m0> No worries ill grab one from hab supplies
[17:43] <li4m0> Shame they won't let me use the BT tower to mount my own antenna
[17:43] <fsphil> hehe
[17:43] <fsphil> they might, but I bet it would cost a bit :)
[17:43] <li4m0> Ha yeh
[17:44] <SpacenearUS> New vehicle on the map: 03SP5NVX - 12http://habhub.org/t/?focus=SP5NVX
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[17:52] <jededu> Li4m0 are you north of four oaks ?
[17:54] <li4m0> No a but more west and slightly lower
[17:55] <Stork> whoah, ITS WORKING!!! I can decode RTTY-data now :)
[17:55] <Stork> so cool!!! :)
[17:55] <fsphil> nice!
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[17:56] <Stork> I had to push the "RV"-button in dl-fldigi
[17:56] <Stork> does anyone know what this does?
[17:56] <fsphil> ah
[17:56] <fsphil> it reverses the tones
[17:56] <Stork> anyway, two weeks of work finally paid off! :)
[17:56] <Stork> oh... and why is that necessary?
[17:56] <fsphil> if your radio and fldigi are both in USB mode, and you have to press RV, it means your tones are backwards
[17:56] <jededu> Im on the north side of kingstanding I get a lot of noise on the SDR, with habamp
[17:57] <li4m0> Yeh I think I saw you on the trackermap actually. I made a brief appearence on it yesterday testing dlfdigi. West Brom sides
[17:58] <Stork> yeah both are in USB mode actually
[17:58] <Stork> should fl-digi be in something else?
[17:58] <Geoff-G8-> If you may have I/Q reversed in the SDR program your using
[17:58] <fsphil> nope, USB is correct for both
[17:58] <fsphil> ah yes that too
[17:59] <Stork> the guide I read had not set the "RV"-button to "green"...
[17:59] <fsphil> yea it should be off
[18:00] <Stork> If i set it to off I only get rubbish-characters
[18:00] <Geoff-G8-> Which SDR program I think SDR# has an I/Q reversal setting
[18:00] <Stork> yes im using SDR#
[18:00] <Stork> okey... looking for it
[18:00] <fsphil> are you using your own hardware to transmit from?
[18:01] <Stork> yes! a raspberry pi and NTX2
[18:01] <fsphil> nice one. you have the pi's serial port connected to the ntx2?
[18:01] <daveake> In that case it's the SDR# setting that's wrong
[18:02] <Stork> correct, im using the UART-port on the raspberry
[18:02] <fsphil> okie, then what daveake said :)
[18:02] <Stork> ok, i clicked the "swap "I & Q"" in SDR#
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[18:03] <fsphil> you may need to retune after that
[18:04] <Stork> its not working anymore :( what "bandwidth" setting are you using in SDR#? Im using USB and 2400 as bandwidth
[18:04] <fsphil> remember to unclick RV
[18:04] <Stork> done that
[18:05] <Stork> after clicking "Swap I & Q" in SDR# the signal has become a lot noisier
[18:05] <fsphil> you'll need to retune sdr#
[18:06] <fsphil> zoom out and look for the strongest signal
[18:06] <daveake> Might easier if you take one or both aerials off
[18:06] <daveake> The receiver will be swamped if you have aerials on Tx and Rx
[18:06] <daveake> Makes it tricky to tell what's the signal and what's an artefact
[18:08] <Stork> you guys are the best
[18:08] <Stork> zoomed and and found out I tried to tune on rubbish...
[18:08] <Stork> now I got a clear and strong signal
[18:08] <Stork> and everything is working 100% perfect
[18:08] <Stork> without the RV-button being green
[18:08] <Stork> this is fun stuff
[18:09] <daveake> cool
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[18:10] <Stork> even though I'm transmitting data like 5 meters now I feel I could send it to the moon :)
[18:11] <SA6BSS> !hysplit G-09
[18:11] <SpacenearUS> 03SA6BSS: HYSPLIT for 03G-09 - 12http://spacenear.us/tracker/hysplit_cache/141228-16_131724_G09.gif
[18:12] <daveake> Sure you could ....
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[18:12] <daveake> .... but might need a large dish to receive it :/
[18:12] <Stork> haha :)
[18:12] <daveake> But it is impressive how far a feeble little 10mW signal can be received over
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[18:18] <Lunar_Lander> that's true :)
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[18:23] <Reb-SM0ULC> :)
[18:24] <Reb-SM0ULC> Stork: i've played with wspr and the clk-pin on the rpi. 7000 km record so far
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[18:30] <lz1dev> daveake: they size is not the size of the signal that matter
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[18:32] <Reb-SM0ULC> SA6BSS: not much in our diection :)
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[18:36] <daveake> lz1dev Many things matter, as I'm sure you know, and emitted power is one of them. Tell anyone that the amount of power used by a typical LED can be "seen" 700km away, and they'll be impressed.
[18:39] <lz1dev> inverse quare law :D
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[18:39] <lz1dev> there's an s in there somewhere
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[18:39] <Stork> it's easy to get impressed by this hobby :)
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[18:39] <Reb-SM0ULC> lz1dev: it's in "inverse", i think
[18:39] <Reb-SM0ULC> ;)
[18:40] <lz1dev> daveake: i was looking for an antenna size punch line
[18:41] <daveake> "it's not the size of your pole it's where you point it"?
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[18:41] <daveake> Except size does matter
[18:44] <lz1dev> yeh
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[18:48] <ike> lz1dev tell me more about "<lz1dev>inverse quare law :D"
[18:49] <ike> what if i have 10mW laset
[18:50] <mattbrejza> then the constant in frnt of r^{-2} is somewhat lower
[18:50] <lz1dev> you will miss a lot of letters :)
[18:50] <daveake> :)
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[19:13] Nick change: chrisstubbsM6EDF -> chrisstubbs
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[19:22] <Lunar_Lander> does anyone plan to fly this year still?
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[19:26] <chrisstubbs> I *might* on new years eve
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[19:27] <chrisstubbs> if predictions get slightly better
[19:28] <Lunar_Lander> nice
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[19:59] <storm_> Hi guys, I would like to add my project to the ukhas wiki. What does it take to be able to edit a page, other than to register?
[20:01] <craag> storm_: You also have to ping an admin to approve your account I believe
[20:02] <craag> You might have more luck finding such creatures in #habhub
[20:02] <storm_> Hi craag, thanks. This was linked at habhub.org ....
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[20:03] <craag> Yep - this is the main discussion channel
[20:03] <craag> #habhub is the habhub.org administration channel
[20:04] <craag> :)
[20:04] <storm_> ok
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[20:07] <Lunar_Lander> hmm stargazing live in march
[20:08] <Lunar_Lander> hi craag
[20:08] <fsphil> I did some live stargazing a few nights ago
[20:08] <craag> evening Lunar_Lander
[20:09] <Lunar_Lander> cool
[20:09] <fsphil> spot the galaxy: http://i.imgur.com/QG0INQh.jpg
[20:10] <craag> very nice
[20:10] <fsphil> I'm still not very good at focusing. my dslr doesn't have a live preview
[20:10] <storm_> fsphil: one exposure or overlayer images?
[20:11] <storm_> *overlayed
[20:11] <fsphil> just one, 30 seconds
[20:11] <storm_> ah ok, that explains the smearing
[20:11] <fsphil> yea, no tracking
[20:12] <craag> fsphil: I had a go at similar with my brother a week ago, we used live tether from lightroom on his laptop to view the images and check focus
[20:12] <fsphil> wonder if that would work with mine, it's a very old canon 400D
[20:13] <craag> http://helpx.adobe.com/lightroom/kb/tethered-camera-support-lightroom-4.html
[20:13] <craag> yep
[20:13] <fsphil> galaxy is in the bottom right - M31
[20:14] <fsphil> hmmm needs windows
[20:15] <zyp> tethering a 400D would work, but you wouldn't get a live feed
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[20:15] <fsphil> live-ish. at the moment I have to take a picture, preview, zoom, adjust, repeat...
[20:15] <zyp> yeah
[20:16] <storm_> focusing at a far away object (tree, chimney, ....) does not work?
[20:16] <craag> It's nice to have the fullsize preview
[20:17] <craag> postview rather
[20:17] <fsphil> too dark where I was storm_
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[20:22] <Lunar_Lander> oh awesome
[20:22] <Lunar_Lander> oh I was right
[20:23] <Lunar_Lander> I immediately thought that dusty bar at the bottom right could be it
[20:23] <Lunar_Lander> and then I just saw phil saying it
[20:23] <Lunar_Lander> :D
[20:23] <fsphil> very difficult object to photograph properly
[20:23] <fsphil> only ever got a fuzzy blob
[20:24] <craag> grr trying to link photo on fb
[20:24] <craag> imgured
[20:24] <craag> http://i.imgur.com/jHke66B.jpg
[20:24] <fsphil> you win
[20:25] <craag> far more him than me :P
[20:25] <craag> I just tagged along
[20:26] <fsphil> it's nice being in a truly dark site
[20:28] <myier> mountains!
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[20:30] <fsphil> or from the air. the night sky at 10km is amazing
[20:38] <Lunar_Lander> "That beep was Steve saying: "Oh, beep"" :D
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[20:51] Action: SpeedEvil wants SOFIA.
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[20:53] <Ian_> Wants SOFA
[20:55] <Ian_> That;s SOFA, living room. I guess you want SOFIA, Bulgaria?
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[20:56] <Jacobz> Hey, do any of you guys use Raspberry Pis with your flights? :p
[20:57] <fsphil> a fair few have Jacobz
[20:57] <storm_> it's a "bit" power intensive
[20:58] <Jacobz> I recently got a HAM license in the US, and was thinking about trying an APRS setup for tracking on our next flight. I saw the TNC-Pi and will probably purchase that, and was wondering what people usually use for the GPS
[20:59] <storm_> u can find plenty of UART GPS receivers, but there are probably more Pi specific solutions
[21:00] <Jacobz> I was specifically looking for GPS Pi shields. Would those work too?
[21:01] <storm_> probably (but some modules are (software) limited to a specific height)
[21:01] <jededu> Is there any good example code for THOR
[21:01] <storm_> have u had a look at the "Pi in the Sky" project?
[21:02] <Jacobz> I did, and found it pretty interesting. Can't find the board for sale anywhere though -- And from what I remember the website/twitter said that it was still in pre-production & completely out of stock
[21:02] <Upu> it will be for sale at http://ava.upuaut.net/store
[21:02] <Upu> end of this month
[21:02] <fsphil> I have code somewhere jededu, not sure I'd call it a good example but it's pretty simple
[21:02] <fsphil> simple-ish
[21:02] <Upu> sorry we had issues getting them made
[21:03] <Upu> boards are at the office now ready to ship to the PCB assemblers
[21:03] <Jacobz> Oh, no problem :) Are you one of the designers for it?
[21:03] <Upu> afk
[21:03] <Upu> Yup tis me
[21:03] <Upu> daveake does code
[21:03] <Upu> Anyway Top gear time
[21:03] <Upu> bbl
[21:03] <jededu> Thx fsphil lol just wanted to have a look Dominoex is working now :)
[21:03] <fsphil> donatello does machine
[21:03] <jededu> upu new top gear ?
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[21:06] <Jacobz> Oh wow, browsing around that store now. Lots of cool stuff
[21:06] <Jacobz> Habduino tracking kit :D
[21:07] <Jacobz> That would have been super useful earlier, as I've always run arduinos on my previous ballooning flights
[21:08] <fsphil> an avr-based tracker can work just as well, and use less power
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[21:08] <Jacobz> Gotcha
[21:08] <Jacobz> So if I were to use telemetry for tracking the balloon
[21:09] <Jacobz> (NTX2 or NTX2B I believe)
[21:09] <Jacobz> What's the most optimal ground station setup to have? I did some research and I only needed a small light antenna due to the LOS
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[21:10] <Jacobz> http://www.amazon.com/RTL-SDR-DVB-T-Stick-RTL2832U-R820T/dp/B00C37AZXK/ref=sr_1_1?ie=UTF8&qid=1419706196&sr=8-1&keywords=rtl2832u%2Fr820t I believe this was one of the recommendations
[21:10] <fsphil> most optimal? how much money you got? :)
[21:11] <fsphil> an ft817 makes a great receiver, but expensive
[21:12] <fsphil> the funcube dongle isn't too bad either
[21:12] <Jacobz> And they'd all be able to pick up signals from the NTX?
[21:12] <fsphil> antenna depends on your situation. is it going on a house or car
[21:12] <fsphil> oh yes
[21:12] <Jacobz> Car
[21:12] <fsphil> small magmount antenna then
[21:13] <Jacobz> Directional?
[21:13] <fsphil> not unless you've some way to aim it while driving
[21:13] <Jacobz> Lol :P Fair enough
[21:13] <Jacobz> For a house setup, would you recommend a Yagi?
[21:13] <fsphil> again you'd need some way to aim it
[21:14] <Jacobz> Right
[21:14] <fsphil> some kind of al/az tracker and a yagi would be ideal, but it's expensive and difficult to use
[21:14] <fsphil> a colinear is better
[21:14] <Jacobz> Yeah. Probably better to start with the smaller antennas and then work my way up
[21:14] <fsphil> works in all directions except straight up and down
[21:14] <Jacobz> Which should be perfect
[21:15] <Jacobz> So I think I'll end up getting the magmount antenna
[21:15] <Jacobz> Will I want two, one for SSTV and the other for the NTX?
[21:15] <storm_> do you guys have experience with QFH antennas?
[21:16] <fsphil> what's doing the sstv?
[21:16] <Reb-SM0ULC> Jacobz: i recommend a couple of dongles to play with.annoying cheap.
[21:16] <Jacobz> @fsphill hopefully the Pi in the sky :) Assuming it does come out soon
[21:16] <Jacobz> @storm_ Not yet. Though I plan on getting more experience soon
[21:16] <fsphil> ooh ssdv
[21:16] <Jacobz> Yes** My bad
[21:17] <fsphil> that'll be send along with the position data on the same signal
[21:17] <fsphil> sent*
[21:17] <storm_> @storm_ : you can build one from hardware store material
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[21:17] <Jacobz> Oh, really? That's awesome
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[21:17] <fsphil> unless you're using aprs?
[21:18] <storm_> @Jacobz: let me find the link
[21:18] <Jacobz> It's an option. But if the NTX2 can get the job done (And I feel I understand it a bit more than APRS right now), I think it may be the better route
[21:18] <fsphil> okie then yea, you can mix the data on the same signal
[21:18] <Reb-SM0ULC> Jacobz: not the best receiver.. but you can buy a lot and when tracking it's easy to have multiple setups.
[21:18] <fsphil> send some ssdv packets, then send some position data
[21:19] <fsphil> both use rtty
[21:19] <Jacobz> Gotcha
[21:19] <fsphil> not sure how the aprs version of pits will handle that
[21:19] <Jacobz> @Reb: By receiver you mean the NRX, right?
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[21:19] <storm_> @Jacobz: German version: http://www.radiosonde.eu/RS00-D/RS08D02-D.HTM
[21:20] <Jacobz> Thank you, storm :) I'll take a look at that tonight
[21:20] <fsphil> the NRX can't be used due to the way we send data
[21:20] <Jacobz> Oh
[21:21] <fsphil> tis why you see people using rtlsdr's, funcube dongles or expensive amateur radio receivers
[21:21] <Jacobz> Mhm. I think I might go with the funcube dongle as it looks portable and simple
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[21:22] <Jacobz> And then the Magmount antenna
[21:22] <fsphil> the airspy is another option these days
[21:22] <fsphil> they're taking more pre-orders atm
[21:22] <Jacobz> Looks a bit bigger. Is there a big benefit with using one over the other?
[21:23] <fsphil> for this no
[21:23] <fsphil> the main advantage of the airspy is wide bandwidth
[21:23] <Jacobz> Ahh okay
[21:23] <fsphil> which won't help, except maybe for receiving multiple payloads at the same time
[21:23] <myier> Ian_: SOFIA is a telescope in an boeing airplane
[21:24] <Jacobz> Gotcha. Sounds good
[21:26] <Reb-SM0ULC> Jacobz: sri, the rtl2832+r820
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[21:27] <Jacobz> Ohh, yes. I think I'll switch that out with what fsphil recommended, which was the funcube dongle
[21:27] <Reb-SM0ULC> the fcd is a lot better radio
[21:28] <Reb-SM0ULC> but you can buy both.. you get some 20-30 dongles for one fcd..
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[21:28] <Jacobz> fcd is the funcube, right?
[21:28] <fsphil> yea
[21:28] <fsphil> the rtlsdr is cheaper, but not quite as sensitive. the habamp can make up for that though
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[21:29] <Jacobz> Well, is there a benefit with having 30 dongles when compared to one fcd?
[21:29] <Reb-SM0ULC> Jacobz: you canät split the fcd among multiple receivers/cars/etc
[21:29] <Jacobz> Ahhh, that's true
[21:30] <Reb-SM0ULC> if you go tracking... keep the fcd to your self and some dongles to close friends :)
[21:30] <fsphil> yes having multiple receivers is a big plus
[21:30] <fsphil> esp if all receivers are uploading data to the map
[21:30] <fsphil> helps for the images too
[21:31] <Jacobz> We're a small group though -- In the past we've carpool'd in one car and used only one setup
[21:32] <Jacobz> (Which was 3G -- so no telemetry)
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[21:36] <fsphil> I'd hate not having live data
[21:36] <fsphil> just letting go and hoping to hear from it again in 2 hours. scary!
[21:37] <Jacobz> Yup :) That's why we're shooting to have telemetry for our next launch
[21:38] <Jacobz> And in our cases... it's been 4-6+ hours. Completely gut-wrenching
[21:41] <Jacobz> Anyways, for the Pi sky kit, I'm guessing something like this? http://www.amazon.com/MAGNETIC-Mobile-ANTENNA-Radio-Meter/dp/B002L0BXIK/ref=sr_1_3?ie=UTF8&qid=1419802120&sr=8-3&keywords=mag+mount+antenna As it's in the 440-470 Mhz range
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[21:44] <fsphil> my fav is the watson wsm-270
[21:44] <fsphil> small with a nice magnet
[21:44] <fsphil> and a non-horrible plug
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[21:44] <fsphil> (PL-259 is not an ideal connector)
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[21:46] <Jacobz> Haha, that's what I was looking up right now :)
[21:46] <Jacobz> The Watson does look nice
[21:47] <chrisstubbs> oh cool CPC sell that watson, quite cheap too
[21:48] <storm_> cpc?
[21:48] <fsphil> uk web store thingy
[21:48] <chrisstubbs> my W-7900 does not agree with height restrictions
[21:51] <daveake> My Watson once pinged all the way down a Eurotunnel train
[21:53] <Jacobz> Wow :o
[21:53] <Reb-SM0ULC> Jacobz: qth?
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[21:57] <HF_ATL> another good antenna very similar is the diamond mr-77
[21:57] <HF_ATL> very good reviews
[22:00] <fsphil> yea diamond stuff is pretty good
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[22:06] <storm_> see u later
[22:06] <chrisstubbs> fsphil, are you a ukhas wiki admin?
[22:07] <jcoxon> chrisstubbs, i am i think
[22:08] <chrisstubbs> #habhub
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[22:18] <Ian_> Many thanks myier, Yes, a flight in that could be very interesting. Best I did was a C130 Herculese tanker. A most interesting day out!
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[22:21] <Jacobz> Sorry for the late reply -- But I will take a look at those, thanks Reb & HF :)
[22:22] <rawles> Hi, I was just browsing your the UKHAS website (and remember some people doing this at EMF camp). The launch points mentioned are in Cambridgeshire. Are there any UKHAS people in Cambridge?
[22:22] <Jacobz> One last nooby question - For the PiSky and Habduino boards -- Is the NTX2 supplied or do they need to be independently purchased?
[22:22] <chrisstubbs> Jacobz, the ntx2 is pre soldered on both
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[22:24] <chrisstubbs> Hi rawles
[22:25] <rawles> hi chris
[22:25] <chrisstubbs> I may well have been one of the people you met at EMF
[22:26] <rawles> Oh cool. It was an accident really - there was somebody tracking signals from a launch with the Bristol hackspace people.
[22:26] <chrisstubbs> Have you seen www.cusf.co.uk?
[22:26] <rawles> Yeah I am just looking at it now. It looks quite serious!
[22:27] <chrisstubbs> I'm not involved in CUSF but yes there are a few people from Cambridge on here invoved in HAB
[22:27] <rawles> I'm not a member of the university unfortunately
[22:28] <rawles> EMF was so cool
[22:30] <adamgreig> there are some ukhas people in cambridge for sure
[22:30] <adamgreig> were you at emf?
[22:30] <adamgreig> did you go to the hab talk? :p
[22:30] <rawles> Yeah, but I didn't go to the events about balloons
[22:30] <rawles> I was just looking at the web just now and remembered
[22:31] <rawles> And now I live in Cambridge
[22:31] <adamgreig> cool
[22:31] <adamgreig> where abouts in cambridge?
[22:32] <rawles> Mill Road area
[22:32] <adamgreig> ah cool
[22:32] <rawles> CB1
[22:32] <rawles> never know how specific to be :)
[22:32] <adamgreig> i'm in cb3, newnham village sort of area
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[22:34] <rawles> I'm fairly new to the area but I think I know where that is. I've been to Derby Stores a few times
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[22:34] <adamgreig> cool
[22:34] <adamgreig> anyway yea there's some hab stuff around and abouts
[22:35] <rawles> Is it restricted to members of the university?
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[22:35] <adamgreig> cusf made the predictor and occasionally do hab launches, and from elsworth just out of town steve randall and others launch somewhat often
[22:35] <rawles> What's the easiest way to check up on events and launches and things? Is it the cusf site?
[22:35] <adamgreig> cusf itself is technically limited to members of the university (and we're mostly doing rockets these days in any event) but we allow people to use our launch site if you wanted to fly something
[22:36] <adamgreig> be on the ukhas mailing list
[22:36] <adamgreig> all launches are announced there
[22:36] <adamgreig> if something is going up from churchill college (cusf) or elsworth, maybe drop them an email to ask if you can come along, if that's what you're interested in
[22:36] <rawles> okay
[22:37] <rawles> Thanks, I'll sign up
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[22:39] <rawles> Is the tracking typically done at the launch too?
[22:39] <rawles> I mean, do people then sit there and report the location of the balloon?
[22:40] <adamgreig> depends, often you jump in a chase car and follow the balloon
[22:40] <adamgreig> meanwhile people all around the country often join in on tracking
[22:40] <Reb-SM0ULC> rawles: good way to test things are runing? :)
[22:40] <rawles> i dont understand reb
[22:41] <rawles> Does the balloon travel slowly enough for a car to be able to chase it?
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[22:42] <daveake> usually
[22:42] <Geoff-G8-> another good source of launch info is the iCal here http://habitat.habhub.org/
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[22:42] <daveake> wintertime can be a problem keeping up with a balloon doing 200+kph in the jetstream
[22:42] <Lunar_Lander> good night!
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[22:43] <Jacobz> :) We launch our balloons right under the jetstream
[22:43] <Jacobz> It's a joy
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[22:43] <Jacobz> And lots of bonding time during the 4 hour drives to the landing site
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[22:44] <Geoff-G8-> rawles, Have you found the tracker ? http://tracker.habhub.org/
[22:44] <fsphil> the jetstream is esp. annoying if you live on an island
[22:45] <Jacobz> Yeah :) I can see that
[22:45] <rawles> That tracker is very neat
[22:45] <rawles> thanks
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[22:45] <daveake> fsphil Move out west; I did :p
[22:46] <daveake> albeit on a larger island
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[23:05] <rawles> Is it necessary to have an amateur radio licence to do the tracking?
[23:06] <adamgreig> nope
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[23:07] <fsphil> daveake: did I catch a mention of your new spot in top gear?
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[23:17] <daveake> fsphil: Yeah Hammond lives nearby
[23:19] <fsphil> ah ha
[23:20] <daveake> only a short drive away
[23:21] <Darkside> haha
[23:21] <Darkside> can tell the place by the helicopters?
[23:23] <daveake> Funnily enough .. before we moved, we viewed a house about half a mile away, and sure enough during the viewing we saw a helicopter above hammond's castle
[23:24] <fsphil> that how he gets upstairs?
[23:24] <daveake> hah
[23:28] <rawles> I'm heading to bed now, goodnight all.
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[00:00] --- Mon Dec 29 2014