highaltitude.log.20140920

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[01:33] <SpacenearUS> New vehicle on the map: 03W7QO - 12http://habhub.org/mt/?focus=W7QO
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[05:25] <SpacenearUS> New vehicle on the map: 03VK3YT - 12http://habhub.org/mt/?focus=VK3YT
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[07:41] <SpacenearUS> New vehicle on the map: 03BC02 - 12http://habhub.org/mt/?focus=BC02
[07:43] <SpacenearUS> New vehicle on the map: 03BC03 - 12http://habhub.org/mt/?focus=BC03
[07:48] <SpacenearUS> New vehicle on the map: 03EDUPIC2 - 12http://habhub.org/mt/?focus=EDUPIC2
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[08:41] <pc1pcl> !flights
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[09:00] <Lunar_Lander> morning
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[09:03] <craag_philcrump> Morning Lunar_Lander
[09:03] <Lunar_Lander> how's life?
[09:03] <craag_philcrump> Good ta, you?
[09:06] <Lunar_Lander> same here, thanks
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[09:21] <ic910> !list
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[09:22] <craag_philcrump> !flights
[09:22] <SpacenearUS> 03craag_philcrump: Current flights: 03BC02 434.800 MHz 100/850 7N2 10(2dff), 03BC03 434.825 MHz 100/850 7N2 10(f38e), 03ALMA-2 10(ff26), 03VR2Space01 10(f584), 03EDUPIC2 10(d4b4), 03B-64 434.500 Contestia 64/1000 10(3afe), 03B-66 434.500 Contestia 64/1000 10(705b), 03Peach-6 10(6cd9), 03PS-21 10.142Mhz OLIVIA 8/250 Enable RSID 10(b6ee)
[09:24] <ic910> tnx craag_philcrump
[09:24] <fsphil> oh an HF flight
[09:25] <fsphil> !track PS-21
[09:25] <SpacenearUS> 03fsphil: Here you go - 12http://habhub.org/mt/?filter=PS-21
[09:25] <fsphil> oh yea, for some reason those links never work
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[09:26] <fsphil> get the logo and an empty progress bar
[09:26] <craag_philcrump> works for me in chrome
[09:27] <fsphil> it works if I go directly to http://habitat.habhub.org/mobile-tracker/
[09:27] <craag_philcrump> Recent version of FF seems to have a few bugs - hard crashes on habmap :(
[09:28] <fsphil> ah just noticed the slow drop in B-64's altitude
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[09:29] <craag_philcrump> Must be He leakage surely
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[09:30] <fsphil> likely. though 66 isn't showing as much
[09:30] <fsphil> slight dip nearer the end maybe
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[09:45] <F1VJQ> LeoBodnar are you here?
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[09:57] <SP9UOB-Tom> PS-21 10.142Mhz OLIVIA 8/250 sounds interesting :-)
[09:59] <Maxell> PS-21 balloon?
[10:04] <SP9UOB-Tom> !flights
[10:04] <SpacenearUS> 03SP9UOB-Tom: Current flights: 03BC02 434.800 MHz 100/850 7N2 10(2dff), 03BC03 434.825 MHz 100/850 7N2 10(f38e), 03ALMA-2 10(ff26), 03VR2Space01 10(f584), 03EDUPIC2 10(d4b4), 03B-64 434.500 Contestia 64/1000 10(3afe), 03B-66 434.500 Contestia 64/1000 10(705b), 03Peach-6 10(6cd9), 03PS-21 10.142Mhz OLIVIA 8/250 Enable RSID 10(b6ee)
[10:04] <Darkside> australia :-)
[10:04] <SP9UOB-Tom> Maxell: seems to be a balloon
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[10:08] <fsphil> worth a listen :)
[10:09] <Darkside> its in australia
[10:09] <Darkside> and is 15mW
[10:09] <Darkside> and isn't launching for about 12 hours :P
[10:09] <Darkside> so you might be hard pressd to hear it right now
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[10:14] <Maxell> Darkside: ah yes
[10:14] <Maxell> hehe
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[10:18] <jededu> Launch is still on for EDUPIC2 light rain at the moment
[10:20] <ic910> jededu: on wat time ??
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[10:21] <jededu> Depends on weather was supposed to be 10:00
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[10:23] <ic910> !payload EDUPIC2
[10:23] <SpacenearUS> 03ic910: Payload 03EDUPIC2 10(d4b4) 03$$EDUPIC2 - 03RTTY Only - 03434.65 MHz USB 03RTTY 50/430Hz ASCII-8 none 2
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[10:24] <SP9UOB-Tom> !whereis PS-21
[10:24] <SpacenearUS> 03SP9UOB-Tom: I haven't got a clue
[10:25] <Darkside> SP9UOB-Tom: its not launching until tomorrow, and its in australia
[10:25] <SP9UOB-Tom> Darkside: ah ok :-)
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[10:26] <SP9UOB-Tom> Darkside: any details about tracker design ?
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[10:28] <Darkside> SP9UOB-Tom: no, th guy that made it isnt in this channel
[10:28] <SP9UOB-Tom> Darkside: ok, thanks
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[11:25] <SpacenearUS> New vehicle on the map: 03SP5NVX - 12http://habhub.org/mt/?focus=SP5NVX
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[11:36] <jededu> Away
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[11:39] <jededu> EDUPIC 434.650 50 8n2
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[11:46] <jededu> This is a Hwoyee 100g
[11:46] <LeoBodnar> SP9UOB-Tom: http://picospace.net/wp-content/uploads/PS-21/PastedGraphic-1.png
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[11:50] <MaXimaN> !flights
[11:50] <SpacenearUS> 03MaXimaN: Current flights: 03BC02 434.800 MHz 100/850 7N2 10(2dff), 03BC03 434.825 MHz 100/850 7N2 10(f38e), 03ALMA-2 10(ff26), 03VR2Space01 10(f584), 03EDUPIC2 10(d4b4), 03B-64 434.500 Contestia 64/1000 10(3afe), 03B-66 434.500 Contestia 64/1000 10(705b), 03Peach-6 10(6cd9), 03PS-21 10.142Mhz OLIVIA 8/250 Enable RSID 10(b6ee)
[11:50] <LeoBodnar> SP9UOB-Tom: http://picospace.net/wp-content/uploads/PS-7/PastedGraphic-31.png
[11:51] <MaXimaN> Freq for EDUPIC2?
[11:51] <LeoBodnar> http://picospace.net/
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[11:52] <jededu> EDUPIC2 434.650 50 8n2
[11:53] <mikestir_> nice and strong this time jededu
[11:54] <jededu> Indeed
[11:54] <MaXimaN> Thanks
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[11:56] <MaXimaN> Starting to come through now
[11:56] <MaXimaN> I'm just on the edge of the blue circle
[11:58] <MaXimaN> Consistent signal but not able to decode yet
[11:58] <craag_philcrump> Decoding on websdr :)
[11:59] <mikestir_> for some reason dl-fldigi is claiming that the elevation is -ve
[11:59] <craag_philcrump> Green at 0.2 degrees
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[12:00] <MaXimaN> mikestir_: It is just the signal tunneling through the earth's crust ;)
[12:00] <mikestir_> lol. no it's definitely over my horizon. just fldigi being weird
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[12:03] <SA6BSS> jededu: expected altidue
[12:03] <SA6BSS> *altitude?
[12:03] <Brian-G0HDI> Green Edupic2 here
[12:04] <jededu> No idea i want it to float but I have never used this make of balloon before
[12:04] <daveake> fwiw depending on alt it might not be notam-free
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[12:05] <jededu> Explain daveake
[12:05] <craag_philcrump> jededu: Hwoyees quite often expand to >2m diameter
[12:06] <jededu> ahh i see
[12:06] <craag_philcrump> You can calculate this from neck lift and altitude
[12:06] <daveake> From Steve's page where you bought them "Burst diameter >= 2.0m** (Manufacturer’s data)"
[12:06] <jededu> Ok will be interesting
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[12:08] <MaXimaN> $&$4EUPIC2l0712z0l:352r9n02r,915.2332l2,3 478,061^57*ܐ1
[12:08] <MaXimaN> Almost :)
[12:08] <jededu> Need some NOTAMS then
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[12:09] <daveake> yeah
[12:09] <jededu> Or Pawan's
[12:09] <daveake> The one I flew, that landed and got relaunched, had a notam (well the original launch did :p)
[12:09] <jededu> lol
[12:10] <jededu> That was a Hwoyee ?
[12:10] <jededu> What is the most a foil will lift
[12:11] <SpacenearUS> New vehicle on the map: 03VR2SC - 12http://habhub.org/mt/?focus=VR2SC
[12:11] <craag_philcrump> lift and burst: about 50g
[12:11] <craag_philcrump> I did that and got burst at 3500m
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[12:12] <craag_philcrump> float on foils is <20g for overnight I think, <15g for during the day?
[12:13] <craag_philcrump> How heavy is your payload jededu ?
[12:13] <jededu> This one 28g
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[12:15] <craag_philcrump> Got any pics?
[12:15] <jededu> Withhe new boards from hackvana a lot lighter these are etched and heavy
[12:15] <craag_philcrump> Ah got some .8mm stuff?
[12:16] <craag_philcrump> I noticed dirtypcbs do .6mm
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[12:18] <daveake> jededu Yes I think that was a hwoyee
[12:20] <daveake> I had a notam with a spare flight on it, so that was fine. That's also why I was able to use a line down to the payload, instead of fixing the payload directly to the neck
[12:20] <craag_philcrump> I keep trying to think of a good way to fix payloads to the neck
[12:20] <MaXimaN> Green at 1 ele
[12:20] <jededu> Ahh i see
[12:20] <craag_philcrump> really need to revisit matt's in-the-neck design
[12:21] <daveake> fsphil, Fit it into a 35mm film canister
[12:21] <daveake> You know, those things you threw out 5 years ago thinking you'd never use them
[12:21] <craag_philcrump> I was about to say that's a great idea
[12:21] <craag_philcrump> then realised I haven't had any for years :P
[12:21] <chrisstubbs> 35mmSAT
[12:21] <craag_philcrump> 3D printing a case might be the way to go...
[12:21] <MaXimaN> http://www.ebay.co.uk/sch/i.html?_from=R40&_trksid=p2050601.m570.l1313.TR12.TRC2.A0.H0.X35mm+film+canister&_nkw=35mm+film+canister&_sacat=0
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[12:22] <craag_philcrump> Nice MaXimaN
[12:22] <chrisstubbs> I'd be worried about the gas leaking through most 3D prints
[12:22] <craag_philcrump> chrisstubbs: good point
[12:22] <MaXimaN> PLA is also not keen on UV light
[12:22] <craag_philcrump> I think matt got his done in the sintering printer
[12:22] <MaXimaN> So would need to be ABS. Probably better as it's more flexible too
[12:22] <chrisstubbs> some of the resin ones might be okay. And there are things you can do to give FDM ones a better finish
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[12:23] <craag_philcrump> I meant ask chrisstubbs, how did you build that valve?
[12:24] <chrisstubbs> http://www.bigfatballoons.co.uk/product.php?products_id=1485&gclid=CI2y4dbk78ACFUsOwwodH5wAkA
[12:24] <chrisstubbs> glue on some PVC pipe
[12:24] <chrisstubbs> :P
[12:24] <craag_philcrump> ah ha
[12:24] <craag_philcrump> cheers
[12:24] <chrisstubbs> you often get them free with the disposable helium canisters
[12:25] <chrisstubbs> its handy but takes quite a bit of pressure to open the valve, so you end up with a bit of helium left in your canister
[12:25] <jededu> This was a test one http://imgur.com/dPve4X8
[12:26] <chrisstubbs> Is that self etched jededu?
[12:26] <craag_philcrump> I'd probably go for a 50 quid cylinder hire tbh
[12:26] <jededu> Yes
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[12:27] <craag_philcrump> Speaking of that.... should get the tracker PCBs finished..
[12:27] <jededu> If I got that back from Hackvana I would not be happy :)
[12:28] <chrisstubbs> Not too bad for self etched, but yeah would be wayy neater with solder mask etc
[12:28] <chrisstubbs> whats the back like?
[12:28] <jededu> Blank
[12:28] <craag_philcrump> jededu: Whats' the tx?
[12:28] <jededu> MTX2
[12:28] <craag_philcrump> ah ok
[12:29] <chrisstubbs> That would explain why the backs blank!
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[12:31] <jededu> New one http://gerblook.org/pcb/6nHm5JvGNPMiGmvhbsQVkQ
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[12:39] <craag_philcrump> jededu: btw I'm not sure that having the chip antenna on a piece of bare track that long is such a good idea.
[12:39] <craag_philcrump> datasheet recommends 1mm from feedline
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[12:43] <Upu> !dial EDUPIC2
[12:43] <SpacenearUS> 03Upu: Latest dials for 03EDUPIC2 10(d4b4): 03434.65 MHz, 144.7 MHz, 434.64895 MHz, 432.412 MHz, 434.64904 MHz, 434.6486 MHz, 1.234 MHz, 434.64867 MHz
[12:43] <Upu> 1.234 MHz sounds legit
[12:43] <craag_philcrump> A median value would work well
[12:44] <Upu> its ok found it
[12:44] <Upu> its the big peaky thing on the waterfall
[12:44] <jededu> craag_philcrump I tested variuos setups and at that length it locks in a few seconds in clear sky and always gets 12 sats thats whats flying now
[12:45] <Upu> looks like someones code does change the MTX2 frequency yet ? :)
[12:45] <jededu> I was saying lol
[12:46] <MaXimaN> No GPS Lock, Temp 21, Battery Volts 1.55
[12:46] <craag_philcrump> jededu: You jinxed it :P
[12:46] <jededu> Yes not good
[12:46] <jededu> lol
[12:47] <jededu> But the signal is good
[12:48] <Upu> Just for giggles : http://i.imgur.com/hLJcDgg.jpg
[12:49] <Upu> on my very first breakout, check out the non tented via's
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[12:49] <jededu> Yay
[12:49] <jededu> Back
[12:49] <Upu> tis
[12:49] <Upu> nice signal on this one
[12:49] <jededu> Gone
[12:49] <Upu> and gone
[12:49] <Upu> :)
[12:53] <SpacenearUS> New vehicle on the map: 03RTS_Chase_chase - 12http://habhub.org/mt/?focus=RTS_Chase_chase
[12:57] <MaXimaN> Heh, back for a packet
[12:58] <PE1ANS> payload of VR2SC ???
[12:59] <jededu> vr2sc is close
[13:00] <SpacenearUS> New vehicle on the map: 03EARS_chase - 12http://habhub.org/mt/?focus=EARS_chase
[13:00] <Upu> !dial v2rsc
[13:00] <SpacenearUS> 03Upu: Can't find a flight doc matching your query
[13:00] <Upu> !dial vr2sc
[13:00] <SpacenearUS> 03Upu: Latest dials for 03VR2Space 10(f584): 03434.45 MHz, 432.412 MHz, 434.65106 MHz
[13:00] <jededu> yay
[13:01] <Upu> oh wow its right next to it
[13:01] <PE1ANS> TNX
[13:01] <Brian-G0HDI> 434.652850 here for VR2SC
[13:02] <Upu> got it
[13:02] <Upu> doesn't look anything like as stable as Jed's
[13:02] <Upu> fingers cross it stays away
[13:03] <Steve_G0TDJ> 'Afternoon guys
[13:04] <Upu> jededu is that home etched thing flying now ?
[13:04] <Brian-G0HDI> Afternoon Steve
[13:04] <Upu> hey Steve
[13:05] <jededu> Upu yes its the last one
[13:05] <Steve_G0TDJ> Nice to be tracking agian
[13:05] <Upu> ok a number of things :)
[13:05] <Upu> that antenna bit is far from ideal
[13:05] <jededu> Go on
[13:06] <Upu> ground plane is edging into the feed area
[13:06] <Upu> should be a 1mm gap
[13:06] <jededu> Ok
[13:06] <Upu> decoupling on MAX seems to have gone awol
[13:06] <jededu> You spotted that :)
[13:07] <Upu> yes :)
[13:07] <Upu> that antenna bit is probably causing your issues
[13:07] <Steve_G0TDJ> https://www.sparkfun.com/datasheets/GPS/JTI_Antenna-1575AT43A40_2006-09.pdf For the antenna
[13:08] <Upu> VR2SC seems to be drifting downwards
[13:08] <Upu> this won't end well
[13:09] <jededu> Corrected in the new versionhttp://gerblook.org/pcb/6nHm5JvGNPMiGmvhbsQVkQ#front
[13:09] <Upu> yeah what craag_philcrump said
[13:09] <Upu> 1mm
[13:09] <Upu> also and I'm being picky but put that decoupling cap right next to the thing being decoupled
[13:10] <Upu> going to start charging royalties for that snap off design*
[13:10] <craag_philcrump> Yeah I would second the decoupling cap, should be closer if you can get it.
[13:10] <Upu> *To Darkside as it was his idea
[13:10] <jededu> Be as picky as you like :)
[13:10] <Upu> I don't like bendy RF paths either
[13:11] <jededu> Ill move the cap and fix the Ant
[13:11] <Upu> but they work so meh
[13:12] <Upu> VR2SC definetly drifting into your signal jededu
[13:12] <Upu> spelling
[13:12] <jededu> Yes im watching it
[13:13] <Upu> however at that ascent rate its not going to be up load
[13:13] <Upu> long
[13:13] <jededu> Time to move the yagi unlike you means wondow hopping
[13:16] <Steve_G0TDJ> Seeing both signals on my waterfall - That's a first
[13:18] <craag_philcrump> EDUPIC2 not quite strong enough to decode simultaneously
[13:18] <Upu> 500hz and closing
[13:19] <Upu> jed's is much stronger from here
[13:19] <Steve_G0TDJ> EDUPIC2 is rock stable - Nice
[13:20] <Brian-G0HDI> No GPS lock Edupic ?
[13:20] <Upu> not atm
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[13:21] <Upu> VR2SC just went super wobbly
[13:21] <Steve_G0TDJ> Is that a burst for VR2SC?
[13:21] <craag_philcrump> nope
[13:21] <craag_philcrump> Just not too well insulated I think
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[13:21] <Steve_G0TDJ> Must be turbulence
[13:22] <Upu> yeah still going up
[13:22] <Upu> but signal is crap, dunno if Jed's stronger signal is causing the AGC to make it weaker
[13:23] <Steve_G0TDJ> Other way round here - VR2SC much stronger
[13:25] <craag_philcrump> VR2SC here, although equalling out as VR2SC fades
[13:25] <edmoore> not mega keen on the path of the centre of a major city
[13:26] <edmoore> over the centre*
[13:26] <craag_philcrump> It's already landed in the city once before :/
[13:26] <craag_philcrump> (previous launch)
[13:27] <Steve_G0TDJ> EDUPIC2 getting much stronger now
[13:27] <edmoore> it's also gone right over the airport at about 15kft
[13:27] <edmoore> who is responsible for edupic2?
[13:28] <jededu> I am
[13:28] <edmoore> did you run a prediction before launch?
[13:29] <jededu> Of course
[13:30] <edmoore> on your head be it. in your shoes i'd only launch on days predicted to head north out of your launch site
[13:31] <jededu> There are far more major cities north of here
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[13:32] <edmoore> i mean north out of birmingham
[13:32] <edmoore> rather than due north all the way
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[13:34] <chrisg7ogx> mega signals on freq niow
[13:34] <jededu> Ahh the prediction never had it turning south the predictions are never as accurate for the 100g balloons in my experience anyway
[13:34] <chrisg7ogx> now
[13:35] <craag_philcrump> jededu: Interesting how your gps eitehr reports 12 satellites, or none...
[13:35] <chrisg7ogx> anyone else with signal on 434.650?
[13:35] <jededu> Yes i have a feeling its software
[13:35] <craag_philcrump> I slightly doubt the validity of the '12'
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[13:35] <Steve_G0TDJ> Yep - 434.649.64 - both ayloads chrisg7ogx
[13:35] <edmoore> well hopefully all these flights are educational for you, if you'll excuse the pun
[13:36] <jededu> thats just read from the GPS
[13:36] <chrisg7ogx> very strong here steve
[13:36] <edmoore> i'm surprised the predictor wouldn't cover the general behavior of a southern trajectory in the first 5000m
[13:37] <daveake> The ascent rate is probably tricky to get right, but I doubt the predictor is far off
[13:37] <craag_philcrump> jededu: http://predict.habhub.org/#!/uuid=3109460fac04be99940cd999c4233c70d39705fa
[13:37] <craag_philcrump> That's a prediction for right now
[13:39] <chrisg7ogx> that's jamming ??
[13:39] <jededu> It almost always changes in the first 2000m although the final direction is accurate craag cant you do one for earlier
[13:39] <daveake> Yup, and the live predictor was showing pretty much that earlier albeit a landing further east
[13:39] <craag_philcrump> daveake: I guess at the burst alt..
[13:39] <craag_philcrump> jededu: No I can't. Do you have a link to yours?
[13:39] <daveake> yeah and I've no idea what the live predictor thinks
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[13:40] <craag_philcrump> uuid should be in your browser hsitory...
[13:41] <PE2G> !dial VR2SC
[13:41] <SpacenearUS> 03PE2G: Latest dials for 03VR2Space 10(f584): 031.234 MHz, 432.412 MHz, 434.6501 MHz, 434.650058 MHz
[13:44] <jededu> Ill check
[13:45] <Steve_G0TDJ> Burst for VR2SC now
[13:45] <edmoore> this isn't meant to be witch-hunty, just saying i'd avoid overflying major cities if the predictor suggests you might. if this is just a 100g balloon then i can't imagine the payload would do much damage
[13:48] <jededu> Its one of the ols school pc's ie history is delete on exit
[13:48] <PE2G> !dial EDUPIC2
[13:48] <SpacenearUS> 03PE2G: Latest dials for 03EDUPIC2 10(d4b4): 031.234 MHz, 434.65192 MHz, 434.65 MHz, 434.64949 MHz, 434.64895 MHz, 434.45 MHz, 432.412 MHz, 434.64904 MHz, 434.64867 MHz, 144.7 MHz
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[13:49] <craag_philcrump> jededu: No worries. I know the predictor can be inaccurate at low altitude, (my 50g foil went completely the wrong way, landed in a wood, never got it back)
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[13:50] <jededu> The last time it landed near by in the city was because of envelope failure I have no control over that
[13:51] <craag_philcrump> But your last few flights have all gone out over central birmingham, and the airport..
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[13:55] <craag_philcrump> Heh VR2SC's external temp got a bit too cold
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[13:57] <G8JNJ> !flights
[13:57] <SpacenearUS> 03G8JNJ: Current flights: 03BC02 434.800 MHz 100/850 7N2 10(2dff), 03BC03 434.825 MHz 100/850 7N2 10(f38e), 03ALMA-2 10(ff26), 03VR2Space01 10(f584), 03EDUPIC2 10(d4b4), 03B-64 434.500 Contestia 64/1000 10(3afe), 03B-66 434.500 Contestia 64/1000 10(705b), 03Peach-6 10(6cd9), 03PS-21 10.142Mhz OLIVIA 8/250 Enable RSID 10(b6ee)
[13:57] <craag_philcrump> Crunch! VR2SC -> EDUPIC
[13:58] <craag_philcrump> Afternoon G8JNJ
[13:58] <G8JNJ> Hi Phil
[13:59] <edmoore> are they both on 434.650?
[13:59] <craag_philcrump> yep
[13:59] <G8JNJ> Just checking who the other ballon wss
[13:59] <Upu> oh yeah
[13:59] <Upu> EDUPIC wins
[13:59] <craag_philcrump> A draw from here...
[13:59] <edmoore> who announced their launch on that frequency first?
[13:59] <Upu> neither :)
[13:59] <craag_philcrump> VR2SC
[13:59] <craag_philcrump> 2 days ago
[13:59] <Upu> oh did they ?
[14:00] <Upu> sorry
[14:00] <edmoore> yeah i see it now
[14:00] <edmoore> email sent 2 days ago
[14:00] <fsphil> uh-oh
[14:00] <edmoore> from alex erlank
[14:00] <craag_philcrump> mm
[14:00] <daveake> sigh
[14:00] <G8JNJ> Back later
[14:00] <edmoore> ok, jededu, i hope you're taking notes
[14:00] <Upu> go sit in the naughty corner jededu
[14:00] <edmoore> here is a lot that needs improvement for next time
[14:00] <edmoore> there*
[14:01] <jededu> Will do :)
[14:04] <fsphil> how close is edupic to 434.650?
[14:04] <fsphil> testing to see if my antenna is faulty
[14:05] <fsphil> nothing heard or seen yet
[14:05] <Steve_G0TDJ> fsphil: I have 434.649.08 for 1500 center
[14:05] <fsphil> not far off then
[14:05] <fsphil> hmm
[14:06] <edmoore> what you need fsphil is some sporadic E
[14:06] <fsphil> woowoo
[14:07] <edmoore> when you can or can't hear something you should or shouldn't, you just wave your hands and say 'sporadic E'
[14:07] <edmoore> i have learnt this from observing hams
[14:07] <edmoore> it's a similar thing to 'oh you know, insertion losses' when someone points out your power amp is 1kW but your license is limited to 500W
[14:08] <Ron__> very observant!
[14:08] <fsphil> hah
[14:09] <edmoore> it's the stuff they don't teach you in the books ;)
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[14:10] <Ron__> there's tons of stuff, not in any books ;-)
[14:10] <edmoore> yep!
[14:10] <craag_philcrump> http://www.reddit.com/user/hamfacts
[14:11] <edmoore> good matching is 1:1, but good-enough matching is <= 1:2
[14:11] <edmoore> ha
[14:11] <edmoore> i still resent having my callsign on my ukhas badge
[14:12] <edmoore> #008 is hilarious
[14:12] <Ron__> I seem to have lost my call sign today!
[14:13] <craag_philcrump> /nick Name_<blink>CALLSIGN</blink>
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[14:15] <fsphil> my ft817 is picking it up. I think my 857 is faulty :(
[14:15] <edmoore> swap it for an ic-7000
[14:15] <edmoore> i'm here all week
[14:16] <Ron__> any close lightning yesterday, with it connected?
[14:16] <bertrik> wow, got a green, just before the "no gps lock" ...
[14:17] <fsphil> nah, all the lightning was miles away
[14:17] <edmoore> this: http://i.imgur.com/cuXtLop.jpg
[14:17] <fsphil> lol
[14:17] Action: fsphil has met people who do that
[14:18] <craag_philcrump> And people who say it on air, on FM voice, in the most serious tone...
[14:19] <craag_philcrump> Like it is their only emotional conduit
[14:19] <edmoore> they formally ackowledge mirth
[14:19] <edmoore> the process of interaction is now complete
[14:19] <mfa298> maybe we should reply to such people with Lima Oscar Lima
[14:19] <edmoore> cards can be safely exchanged
[14:21] <fsphil> yea confirmed, ft857 is deaf on 70cm :(
[14:22] <fsphil> http://www.geeksofdoom.com/GoD/img/2011/09/2011-09-12-darthvadernooo-533x366.jpg
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[14:22] <edmoore> fsphil, this is the perfect excuse to do some electronics digging!
[14:23] <daveake> fsphil <egg_sucking_mode> switched to wrong aerial?
[14:23] <edmoore> if you needed a reason to buy a nice siggen...
[14:23] <fsphil> 857 can't switch antennas
[14:23] <Ron__> lost VR2SC at 980 mtrs Hi Hi
[14:23] <daveake> ok
[14:23] <fsphil> 70cm is always on the N plug
[14:23] <fsphil> edmoore: I'm afraid to even open the thing up
[14:23] <fsphil> I'm like the anti-dave jones
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[14:24] <edmoore> wx here grey. name here greyham. xyl kept in dungeon.
[14:24] <fsphil> it could be something as simple as a dead cap
[14:24] <fsphil> or a lose connector
[14:24] <Ron__> a man built it, a man can rebuild it..
[14:24] <chrisstubbs> edmoore, lmao
[14:25] <edmoore> http://www.ronet.co.za/downloads/FT-857%20Service%20Manual.pdf
[14:25] <fsphil> a man thanks Ron__
[14:26] <edmoore> see if the test points they tell you to probe show the right thing
[14:26] <edmoore> you can usually isolate it down to a small segment
[14:27] <edmoore> the last thing i fixed was a nice fluke 6.5 digit bench multimeter
[14:27] <edmoore> rms voltage section was dead
[14:27] <fsphil> not sure anyone in Braavos can fix radios
[14:27] <edmoore> i opened it up prepared for a diverting battle of wits between me and the fault
[14:27] <Ron__> must go,,,, got a 869mhz yagi to build, and a curry to cook...not in that order
[14:27] <fsphil> oh thanks edmoore
[14:27] <edmoore> but immediately noticed the lead to the rms measurement daughter card was deteched
[14:27] <edmoore> so i reattched it and it worked
[14:28] <edmoore> all of 2 minutes
[14:28] <edmoore> dissapointing
[14:28] <fsphil> hah, well I'm hoping it's something simple like that
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[14:28] <fsphil> it happened rather suddenly
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[14:28] <fsphil> and only seems to be 70cm. I heard a few people talking on 2m
[14:29] <edmoore> this might get you in the mood
[14:29] <edmoore> https://www.youtube.com/watch?v=Cz_OcsqZXn4&list=UUiqd3GLTluk2s_IBt7p_LjA
[14:29] <edmoore> his videos are v good
[14:34] <pc1pcl> gps lock is back..
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[14:59] <bertrik> is anyone else getting a ~ 5 kHz wide noise signal in between telemetry from edupic2?
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[14:59] <pc1pcl> I had some 'damn kids' talking in FM for a while earlier.
[15:00] <jededu> Burst
[15:01] <SpacenearUS> New vehicle on the map: 03KB1YTY - 12http://habhub.org/mt/?focus=KB1YTY
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[15:04] <bertrik> pc1pcl: it's right on top of the edupic2 signal for me (receiver in the hague, near prins clausplein)
[15:04] <fsphil> edmoore: yea good video
[15:06] <fsphil> the hot tweezers look rather useful
[15:06] <pc1pcl> I'm in ypenburg, so close, just heard someone els asking in FM if anyone was "QRV" on .650
[15:08] <pc1pcl> :( kids are back..
[15:08] <SpeedEvil> edmoore: The battle of wits is noticing that the connector is loose _before_ going on a 6 hour faultfinding spree
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[15:26] <PE1ANS> No reception any more from EDUPIC2,, Tnx for nice flight,, Jan
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[15:29] <jededu> PE1ANS thx
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[15:47] <PE1ANS> a nice weekend all and until the next flight,, 73's de Jan PE1ANS
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[15:51] <Maxell> EDUPIC2 flew today? :(
[15:51] <Maxell> too busy with non hobby stuff today
[15:52] <bertrik> Maxell: I tried to track it, but I was a bit late, and then the GPS lock got lost ...
[15:54] <Maxell> Lost GPS lock is not a bad thing. As long as it keeps TXing I can track it :)
[15:54] <Maxell> As long as it TXes and is in horizon for me I like it
[15:54] <Maxell> unless it's qmr
[15:54] <Maxell> qrm
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[16:04] <pc1pcl> Maxell: GPS lock was a bit intermittent at altitude. Too bad some kids decided to play on FM just around the time it was near the highest altitude, and then later as it was just going out of (my) range.
[16:05] <pc1pcl> so there was plenty of QRM to track besides the balloon itself ;)
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[16:11] <Maxell> pc1pcl: kids on lpd?
[16:11] <Maxell> oh noes
[16:11] <jededu> ping upu
[16:12] <bertrik> Maxell: on the waterfall, it looked like a 5 kHz wide flat noise signal with steep edges
[16:13] <bertrik> may some kind of digital voice signal?
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[16:16] <SpacenearUS> New vehicle on the map: 03JFS1_chase - 12http://habhub.org/mt/?focus=JFS1_chase
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[16:36] <Maxell> bertrik: 5 kHz wide would be 6,25 for digital voice narrow band yes
[16:39] <jededu> ping craag_philcrump
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[17:16] <jededu> ping upu
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[17:27] <SpacenearUS> New vehicle on the map: 03DF5WXF_chase - 12http://habhub.org/mt/?focus=DF5WXF_chase
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[17:30] <chimpusamximus__> missed most of today feeling rough, did EDUPIC2 go ok? i see it landed near me
[17:31] <craag_philcrump> jededu: pong
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[17:32] <jededu> craag_philcrump can you take a quick look at this before I send it off again http://gerblook.org/pcb/cPMPjaLfF6XsNpftxToFTB
[17:35] <mikestir_> your rf tracks could probably do with a bit more space around them
[17:35] <jededu> The antenna bit
[17:35] <jededu> mikestir ok
[17:35] <mikestir_> yeah both gps and the tx
[17:35] <craag_philcrump> Yeah
[17:36] <craag_philcrump> the gps antenna feed is a lot better
[17:36] <qyx_> it depends
[17:36] <mikestir_> with that kind of layout the rf tracks are best simulated as a coplanar waveguide rather than microstrip
[17:36] <craag_philcrump> Also you can put curves on the TX rf track
[17:36] <mikestir_> http://chemandy.com/calculators/coplanar-waveguide-with-ground-calculator.htm
[17:37] <qyx_> yep, as mikestir_ says
[17:38] <qyx_> i use 0.8mm with and 0.15mm gap on 0.8mm thick FR4
[17:38] <qyx_> *width
[17:41] <qyx_> also you probably want much wider tracks to the inductor
[17:41] <craag_philcrump> Ah if that's an switch-mode... yeah you want a lot wider tracks everywhere
[17:41] <jededu> I am taking notes :)
[17:42] <craag_philcrump> Look at the datasheet for the switch-mode IC
[17:42] <craag_philcrump> it'll have PCB layout advice
[17:42] <mikestir_> yeah maybe some extra stitching vias around the switcher as well
[17:42] Nick change: mikestir_ -> mikestir
[17:43] <qyx_> the same apply to the capacitor of whatever is it
[17:43] <qyx_> which is placed left to the inductor
[17:43] <jededu> It is tps61016
[17:44] <craag_philcrump> There's a nice TI guide to SMPSU layout here: http://www.ti.com/lit/an/snva021c/snva021c.pdf
[17:44] <jededu> Thx
[17:47] <craag_philcrump> it's possible that the noise from bad switch mode layout could be a significant cause of yours gps issues
[17:48] <mikestir> what's the value of the decoupling cap on the gps there?
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[17:49] <jededu> Just a quick question yhe inductor tracks , so I increase the track size from .254 (tps6106) to a wider track to the inductor?
[17:51] <craag_philcrump> Yes, wider tracks all round the SMPSU would be a good plan
[17:51] <mikestir> might even be worth just having a copper pour
[17:51] <craag_philcrump> The 'correct' way to do it is with polygons like in the TI guide
[17:53] <mikestir> anyway my comment about the gps decoupling - you only seem to have 1 capacitor and it looks large. It's worth having some RF decoupling as well - say 100 pF
[17:53] <craag_philcrump> Yep, even if you try it without, doesn't cost anything to have an extra footprint and then you can add caps later if you have issues.
[17:54] <mikestir> on mine I have 1uF, 100nF and 100pF - I think this is recommended in the hardware integration manual
[17:55] <jededu> I am using 10nf but good point
[17:56] <jededu> I have room
[17:56] <mikestir> you definitely want something fairly bulky there as well because of its spiky current demand
[17:57] <jededu> Ok start modding :)
[17:57] <mikestir> what cpu is it? pic32?
[17:57] <jededu> Good job hackvana have delays
[17:58] <jededu> Yes pic32mx250128d
[17:59] <jededu> or mx150 now they are available
[18:01] <mikestir> need to find the time to have a look at those - the MZ series in particular has some nice features, and they're not real pics so I won't feel all that dirty
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[19:08] <cm13g09> mfa298, craag_philcrump ping
[19:11] <craag_philcrump> cm13g09: pong
[19:12] <cm13g09> craag_philcrump: Don't suppose you happen to have a Molex -> SATA power cable around.... that you don't need
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[19:13] <craag_philcrump> Nope
[19:15] <cm13g09> :(
[19:15] <cm13g09> ok
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[19:16] <esculca> hi everyone
[19:17] <esculca> does anybody in here has an eagle's library for RFM98W (LoRa)?
[19:17] <esculca> I am playing with these now...
[19:28] <chrisstubbs> I *think* someone said they are almost pin compatible with the rfm22?
[19:29] <esculca> almost?
[19:29] <esculca> it is not
[19:30] <esculca> i have to change the library
[19:30] <Upu> yeah
[19:30] <esculca> if someone has it already doen
[19:30] <Upu> its in mine I think hang on
[19:30] <mattbrejza> its compatible enough if you happen to have a rfm22b pcb and dont want to send off for another one
[19:32] <Upu> https://github.com/Upuaut/Eagle-Libraries
[19:32] <Upu> ava.lbr
[19:33] <Upu> untested use at your own risk
[19:33] <esculca> thanks Upu
[19:33] <esculca> I will try them out
[19:33] <Upu> I have some PCB's stuck in China with it on so not been able to test
[19:33] <Upu> its under RFM something
[19:33] <esculca> ok, I am downloading it
[19:35] <jededu> upu I cant see any reference to connecting the ublox pin 9 to vcc
[19:35] <Upu> its in the max 6 manual
[19:35] <mattbrejza> its not needed for max7/8 iirc
[19:35] <Upu> but doesn't seem to do any harm
[19:36] <mattbrejza> i think if anything its slightly higher power consumption due to a pullup
[19:36] <mattbrejza> but minimal reallu
[19:36] <jededu> Ok thanks cleared that up
[19:36] <Upu> I'll start removing it but its wired up on all my boards
[19:37] <esculca> tkx Upu
[19:37] <esculca> I already have it in my board
[19:37] <esculca> let's see how it goes
[19:43] <SP9UOB-Tom> well, i cant beleive thats homemade: https://www.youtube.com/watch?v=CRSLbo_8nTQ :-)
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[19:47] <edmoore> fun video but he needs to hold the pcbs along the edges properly
[19:47] <edmoore> so they can't bounce up and down
[19:51] <jededu> Not bad for diy pcb http://imgur.com/fUI3Y5L
[19:53] <edmoore> i can see why you'd build a p&p machine if you were that shakey! http://youtu.be/CRSLbo_8nTQ?t=8m7s
[19:54] <SP9UOB-Tom> edmoore: ;-) This is not me ;-)
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[20:03] <jonsowman> true
[20:03] <jonsowman> oops
[20:03] <jonsowman> wrong window
[20:03] <jonsowman> :)
[20:05] <edmoore> false
[20:05] <fsphil> maybe
[20:06] Action: fsphil would like to extend binary to include 0.5
[20:06] Action: fsphil doesn't care that it doesn't make sense
[20:06] <jonsowman> trinary is a thing
[20:06] <edmoore> trinary?
[20:06] <edmoore> {0,1,2}?
[20:06] <jonsowman> yes
[20:07] <jonsowman> I think it should be ternary really
[20:07] <jonsowman> but I hear "trinary" a lot
[20:07] <edmoore> yeah
[20:07] <edmoore> ternary tree certainly
[20:07] <gonzo_nb> a ringing in the ears?#
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[20:07] <fsphil> does it sound like rtty?
[20:07] <jonsowman> everything sounds like rtty after long enough
[20:07] <gonzo_nb> only after a contest
[20:07] <jonsowman> or a HAB chase
[20:08] <gonzo_nb> I run with the vol down these days
[20:09] <edmoore> in these days of tcxos you don't need to keep an ear on it so much
[20:09] <craag_philcrump> These days with transmitters that don't drift
[20:09] <edmoore> too slow
[20:09] <edmoore> kapow
[20:09] <edmoore> you're dead phil
[20:09] <jonsowman> haha
[20:09] <edmoore> only room for one of us in this town
[20:09] <craag_philcrump> X(
[20:09] <gonzo_nb> mostly I ar rxing remote, so only have the waterfall to go by
[20:09] <jonsowman> I did most of my HAB chases with drifty payloads
[20:09] <edmoore> same
[20:09] <edmoore> coming up to half a decade since my last launch
[20:09] <jonsowman> wow
[20:10] <gonzo_nb> just open the filters on dl fldigi and it can usuially catch up
[20:10] <edmoore> will be half a decade in jan
[20:10] <gonzo_nb> prob getting there fir my first!
[20:11] <jonsowman> mine was earlier this year but was a bit of a gap before that
[20:13] <edmoore> the parachute thing did me for a while
[20:13] <edmoore> and rockets came along
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[20:32] <SpacenearUS> New position from 03B-64 after 032 days silence - 12http://habhub.org/mt/?focus=B-64
[20:32] <lz1dev> !whereis b-64
[20:32] <SpacenearUS> 03lz1dev: 03B-64 is over 03Norwegian Sea 10(71.8544,5.9768) at 0311897 meters
[20:33] <Lunar_Lander> hm
[20:33] <Lunar_Lander> :)
[20:34] <SpeedEvil> Woo!
[20:34] <lz1dev> 3.3v bat
[20:34] <lz1dev> and that's just after sun down
[20:34] <lz1dev> :(
[20:34] <lz1dev> already 3.29
[20:35] <SpeedEvil> What the hell is picking that up?
[20:35] <SpacenearUS> New vehicle on the map: 03SEBA - 12http://habhub.org/mt/?focus=SEBA
[20:36] <lz1dev> maybe a log?
[20:36] <Lunar_Lander> good question SpeedEvil
[20:36] <lz1dev> made quite the job
[20:36] <lz1dev> jump*
[20:36] <lz1dev> just now
[20:36] <SpeedEvil> Boat?
[20:36] <SpeedEvil> lz1dev: It's exactly on the hysplit I remember
[20:36] <craag_philcrump> http://aprs.fi/#!call=a%2FM0XER-4&timerange=3600&tail=3600
[20:36] <craag_philcrump> Nope, land-based station apparently
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[20:36] <craag_philcrump> In Tromso
[20:37] <lz1dev> so thats log
[20:37] <lz1dev> then
[20:37] <Lunar_Lander> nice!
[20:37] <lz1dev> its not actual position
[20:37] <craag_philcrump> lz1dev: I thought log was encoded?
[20:37] <craag_philcrump> Position on aprs.fi should be live?
[20:37] <lz1dev> yes
[20:37] <lz1dev> date seems right
[20:38] Action: craag_philcrump waves hands
[20:38] <craag_philcrump> "sporadic e!"
[20:38] <lz1dev> the the aprs overlay, is the little house in tromso
[20:38] <SpeedEvil> Ah
[20:38] <SpeedEvil> 'Antenna HAAT 400m'
[20:38] <Lunar_Lander> yay ionosphere!
[20:38] <SpeedEvil> that'll help
[20:39] <craag_philcrump> I'd like a 400m mast...
[20:39] <SpeedEvil> craag_philcrump: Keep clicking the links
[20:40] <craag_philcrump> Ah I remember this digi also picked up B-40 at a ridiculous distance
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[20:42] <SpeedEvil> So I guess it's a safe conclusion both batteries (or something else) is pretty buggered.
[20:42] <SpeedEvil> Just another 5000km or so till B64 reaches the 100Mm mark.
[20:43] <SpeedEvil> lz1dev: Is 'duration' to last position - or elapsed time sofar
[20:43] <lz1dev> between first and last position
[20:43] <lz1dev> so launch to now
[20:45] <SpeedEvil> yeah - I was wondering about 66 - so that'd add 2 days to the duration if still going
[20:45] <SpeedEvil> how do you trigger a fresh hysplit
[20:45] <lz1dev> it might be the last we ever see of it
[20:45] <SpeedEvil> or does it run every 6h
[20:45] <SpeedEvil> Quite possibly, yws
[20:45] <lz1dev> dead floaters
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[20:47] <SpeedEvil> On the other hand.Battery voltage has gone up since its first contact
[20:48] <SpeedEvil> Maybe it's got magic solar panels that only work at night
[20:48] <SP9UOB-Tom> SpeedEvil: moonbounce ;-)
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[20:57] <mrShrimp> Anyone mind helping me with this carrier wave? http://i62.tinypic.com/oirame.png
[20:57] <mrShrimp> It doesn't look quite right.
[20:57] <mrShrimp> and it waves quite a bit
[20:57] <mattbrejza> sudo add-apt-repository ppa:simrunbasuita/dl-fldigi for installing fldigi on ubuntu? it 404s on update
[20:58] <mattbrejza> mrShrimp: your shift is too narrow and baud rate too low
[20:58] <mrShrimp> hmm, 300 is too low?
[20:58] <SP9UOB-Tom> !dial SEBA
[20:58] <SpacenearUS> 03SP9UOB-Tom: Can't find a flight doc matching your query
[20:59] <mattbrejza> that doesnt look like 300 to me
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[20:59] <SP9UOB-Tom> mattbrejza: it looks like 30 :-)
[20:59] <mrShrimp> I took it from here http://ukhas.org.uk/guides:linkingarduinotontx2
[20:59] <mrShrimp> :P
[20:59] <mrShrimp> the transmission code at least
[21:00] <mrShrimp> 50 baud
[21:00] <mrShrimp> sorry
[21:00] <mrShrimp> definitely not 300 :P
[21:00] <mattbrejza> your oscillator might be 8 times out
[21:00] <Laurenceb__> wohoo B-64
[21:01] <mrShrimp> What do you mean by that?
[21:01] <Laurenceb__> over 10 weeks airborne
[21:02] <mattbrejza> clock is too slow
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[21:03] <mrShrimp> http://i61.tinypic.com/2417b07.png
[21:04] <mrShrimp> This is what I get when I detatch the SMA connector the the 1/4 wave ground plane antenna.
[21:04] <mrShrimp> interesting...
[21:04] <mrShrimp> still not smooth though
[21:05] <mrShrimp> and its getting worse
[21:05] <fsphil> tinypic really refuses to work for me
[21:05] <fsphil> oh worked the third time
[21:05] <fsphil> you also only have a single line
[21:05] <fsphil> you should have two
[21:05] <mrShrimp> That's the carrier. It hasn't gotten a fix yet.
[21:05] <fsphil> ah
[21:05] <fsphil> that's fine
[21:06] <mfa298> mattbrejza: I don't think the ppa has dl-fldigi for the latest version(s) of ubuntu - currently it's a compile from source job
[21:06] <fsphil> you won't get it cleaner than that
[21:06] <mattbrejza> i gave up and used my phone lol
[21:06] <mattbrejza> kinda works through the mic
[21:07] <mrShrimp> There's an app for dl-digi?
[21:07] <mrShrimp> *fl-digi
[21:07] <mfa298> mattbrejza: I hear there's a good java decoder that works cross platform ;)
[21:07] <mattbrejza> that means installing java
[21:07] <mattbrejza> might as well just boot into windows
[21:07] <jonsowman> good+java=???
[21:08] <mattbrejza> that way i dont have to try to install msp430 on linux either
[21:08] <Laurenceb__> so B-64 has done 4 circumnavigations now
[21:08] <mfa298> mrShrimp: dl-fldigi is computer only, but there's an android app that decodes 50/300 baud rtty
[21:09] <mrShrimp> mfa298: What's the name of it?
[21:10] <mfa298> something like hab modem and tracker
[21:10] <mrShrimp> http://www.wolphi.com/ham-radio-apps/droidrtty-2/ ?
[21:11] <mfa298> https://play.google.com/store/apps/details?id=com.brejza.matt.habmodem&hl=en_GB
[21:11] <cm13g09> mfa298: ping
[21:11] <cm13g09> (see history)
[21:11] <mfa298> cm13g09: pong
[21:12] <mrShrimp> wooooah
[21:12] <mfa298> possibly in a box somewhere but it might take a bit of rummaging. how quickly do you need one ?
[21:13] <mrShrimp> Too bad I'm using an ezcap dongle. I was hoping to be able to do a chase without having to worry about charging my laptop.
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[21:13] <cm13g09> mfa298: not massively urgent
[21:14] <mattbrejza> soon to support lora via bluetooth reciever
[21:14] <daveake> :)
[21:14] <mfa298> mrShrimp: if your device supports usbotg there is an sdr decoder for android as well but I've not really used it and im not sure how easily you can get audio from one to the other
[21:15] <mattbrejza> (not expect anything soon)
[21:15] <mattbrejza> i might be beaten to it :P
[21:15] <cm13g09> mfa298: next couple of weeks will do :)
[21:15] <mfa298> cm13g09: I'll try and have a look tomorrow and add it with the 24-12 smps assuming you still want to borrow that.
[21:16] <cm13g09> yes please
[21:17] <mrShrimp> thanks, looks interesting
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[21:56] <SpacenearUS> New position from 03VK3YT after 0316 hours silence - 12http://habhub.org/mt/?focus=VK3YT
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[22:13] <SpeedEvil> lz1dev: LeoBodnar Laurenceb__ Hmm. Battery voltage from 3.3@8:30PM to 3.26 100 minutes later. That's not actually bad at al.
[22:13] <SpeedEvil> The interesting thing to me http://aprs.fi/telemetry/?call=M0XER-4&date_start=2014-09-20+20%3A20%3A36&date_end=2014-09-20+22%3A39%3A36
[22:14] <SpeedEvil> is - look at the sharp dips in battery voltage
[22:14] <SpeedEvil> they seem to be correlated with significant temperature rises.
[22:14] <Laurenceb__> yeah
[22:14] <Laurenceb__> i suspect its fetching new gps data
[22:15] <SpeedEvil> I_batt would be really nice
[22:15] <Laurenceb__> yeah
[22:15] <SpeedEvil> Indeed - one of those little charge monitor chips
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[22:16] <mheld> hey y'all
[22:17] <mheld> anybody in here have any experience with optimizing power consumption with ublox modules?
[22:17] <SpeedEvil> yes
[22:18] <mheld> since I only need location once (or twice) a day, I've been debating between completely shutting off the GPS module and getting a fix each time
[22:18] <mheld> vs going into PSM for 24 hours
[22:18] <mheld> any thoughts there?
[22:19] <craag_philcrump> I think the point at which PSM/off-on were better was about 20 minutes
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[22:19] <craag_philcrump> <20 minutes: PSM
[22:19] <craag_philcrump> >20: Switch it off and on jsut for fixes
[22:19] <SpeedEvil> By 'completely shutting off' - if you mean keeping the clock going or actually removing power competely
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[22:19] <Upu> get it into 1 sec cyclic
[22:19] <Upu> as soon as its got a lock and you're only pulling 4-5mA anyway
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[22:20] <SpeedEvil> mheld: is this for soething other than baloon tracking?
[22:21] <mheld> SpeedEvil: we *do* track balloons but the hardware I have isn't meant for balloons specifically
[22:21] <mheld> (and by completely shutting off, I mean sending a UBX-RXM-PMREQ message)
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[22:22] <Upu> you can try hot start them
[22:22] <Upu> but they give some odd positions for a while
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[22:23] <mheld> I *could* do some AGPS stuff
[22:23] <mheld> but I'm pretty sure that my cell module isn't connected properly
[22:23] <mheld> it talks via EXTINT
[22:23] <mheld> only
[22:23] <mheld> agh, gotta grab some more USB cables
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[22:26] <LeoBodnar> it just caught peak consumption from GPS but since updates are rare it looked like a trough rather than short sharp drop [23:13] <SpeedEvil> The interesting thing to me
[22:26] <SpeedEvil> cna you upload a AGPS data using a message?
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[22:26] <SpeedEvil> LeoBodnar: yeah - on reflection that makes sense
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[22:27] <LeoBodnar> you can see quite a few of them during the night when battery impedance increases
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[22:28] <SpeedEvil> i guess with luck, this should stay in range up to the morning
[22:28] <craag_philcrump> SpeedEvil: Yes you can, I tried to get access to the ublox agps online data for a project a while back, they never got back to me though.
[22:28] <SpeedEvil> Or at least we should see it die
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[22:37] <lz1dev> craag_philcrump: have you tried to reverse the u-ceter app?
[22:37] <lz1dev> it should have the agps feature buildin
[22:37] <lz1dev> not sure if you can sue it
[22:37] <lz1dev> sue=use
[22:39] <myself> sniff network traffic, maybe? It's probably not even ssl coming from the server
[22:40] <myself> also I'm not sure what format the data is in, but you might be able to get it from ntrip casters and such
[22:40] <myself> there doesn't seem to be a good #gps anywhere :/
[22:40] <craag_philcrump> lz1dev: I believe you have to give ucenter access credentials
[22:41] <Upu> I think I have them
[22:41] <Upu> somewhere
[22:42] <Upu> To register for AssistNow Online, simply send an e-mail to agps-account@u-blox.com. An automatic reply will be generated with the following information:
[22:42] <Upu> ·
[22:42] <Upu> User name (same as e-mail address)
[22:42] <Upu> ·
[22:42] <Upu> Password
[22:42] <Upu> ·
[22:42] <Upu> Disclaimer / Terms of Use
[22:42] <Upu> The account is activated immediately. Carefully read the attached disclaimer and terms of use before proceeding.
[22:42] <myself> you might also be able to pull them out of an android phone or something; phones get agps info from towers to fire 'em at the onboard GPS receiver chip.
[22:43] <Upu> https://dl.dropboxusercontent.com/u/63720513/PDFS/AssistNow_Online_Services_Intro%28GPS.G4-SW-05022%29.pdf
[22:44] <craag_philcrump> Thanks Upu, that may be useful!
[22:44] <craag_philcrump> I have wondered how much power you could save by preloading the data into the mcu
[22:45] <craag_philcrump> for short-term float flights
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[22:46] <craag_philcrump> (that would be the -offline data flavour)
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[22:48] <SpacenearUS> New vehicle on the map: 03VK3YT_ - 12http://habhub.org/mt/?focus=VK3YT_
[22:49] <lz1dev> Upu: do you have a user/pass handy?
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[22:52] <Upu> I don't lz1dev but its an automated mailing service
[22:54] <SpeedEvil> supl.google.com
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[23:01] <lz1dev> https://alp.u-blox.com/current_7d.alp
[23:11] <kf7fer> jededu: So why don't you tie RESET_N high? IF you do that, you can shorten the VCC line to your decoupling cap by 1/2
[23:11] <kf7fer> oops - was a bit behind on the scrollback
[23:12] <kf7fer> and am I the only one who uses at least 2x 0.1uF decoupling caps on their AVR?
[23:13] <craag_philcrump> No you're not ;)
[23:14] <kf7fer> craag_philcrump: ok, thanks. I thought one for each power connection
[23:14] <lz1dev> craag_philcrump: the above url is the data you need
[23:14] <lz1dev> only 14d max :\
[23:15] <craag_philcrump> lz1dev: 404
[23:15] <lz1dev> oh
[23:15] <lz1dev> http://alp.u-blox.com/current_7d.alp
[23:15] <lz1dev> http://alp.u-blox.com/current_14d.alp
[23:15] <lz1dev> http://alp.u-blox.com/current_1d.alp
[23:15] <lz1dev> etc
[23:15] <craag_philcrump> kf7fer: I usually do that and a 1uF nearby
[23:16] <craag_philcrump> lz1dev: Nice, thanks. Not sure when I'll get a chance to play, but we'll see...
[23:16] <lz1dev> 14d data is 85kb
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[23:18] <kf7fer> craag_philcrump: So what is "nearby"? I've got a 1uF on the boost converter and it's _relatively_ close. I guess the 1uF's on UCAP and UVCC don't count (this is a 32u4)
[23:18] <craag_philcrump> lz1dev: Yeah that's not really feasible. Might be able to fit the 1-day into flash though.
[23:21] <craag_philcrump> kf7fer: I'd add another 1uF somewhere else myself. It's all layout dependent though and I tend to make the decisions on the fly, haven't quite made enough PCBs to justify a strict policy, but I'm working on it ;)
[23:23] <kf7fer> Well I don't think I've _ever_ seen a post where someone says "I really regret adding that 1uF decoupling cap..."
[23:23] <craag_philcrump> hehe
[23:24] <craag_philcrump> I did do some work at a company helping them fix an issue caused by too much decoupling...
[23:25] <craag_philcrump> That was rather extreme conditions though, a good part of a farad and many many amps..
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[23:27] <craag_philcrump> Anyway, if in doubt, place the footprint. You can always choose to populate it later.
[23:27] <craag_philcrump> Goodnight!
[23:27] <kf7fer> great advice
[23:27] <kf7fer> nite
[23:28] <kf7fer> always room for an 0805 1uF cap anyways
[23:28] <kf7fer> or smaller if you're more of a man than I am (of course my latest board uses 2x 402's and all the 805 decoupling caps were populated using 603's since that's all I had)
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[23:41] Nick change: MichaelC1 -> MichaelC
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[23:51] <loceur> oh wow... big group
[23:51] <loceur> hello
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[23:58] <kf7fer> loceur: hi! assume the group is like American television: a thousand channels but nothings on <ducks>
[23:58] <kf7fer> ok timing is everything
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[00:00] --- Sun Sep 21 2014