highaltitude.log.20190901

[00:11] <SpacenearUS> New position from 03KA6TVU-11 after 032 days silence - 12https://tracker.habhub.org/#!qm=All&q=KA6TVU-11
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[02:27] <SpacenearUS> New vehicle on the map: 03VE2ZDK-11 - 12https://tracker.habhub.org/#!qm=All&q=VE2ZDK-11
[02:36] <SpacenearUS> New vehicle on the map: 039M4SSL-11 - 12https://tracker.habhub.org/#!qm=All&q=9M4SSL-11
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[09:02] <Darkside> PE2BZ: so it looks like you launched something?
[09:02] <Darkside> with no GPS lock
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[09:03] <Darkside> and a slightly out of focus camera :P
[09:18] <SpacenearUS> New position from 03V4 after 0315 hours silence - 12https://tracker.habhub.org/#!qm=All&q=V4
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[10:14] <PE2BZ> Darkside: yes I did, the GPS would not lock, but I decided to fly anyway, budget payload, budget balloon, reception from home with bandpass and preamp was not to bad. GPS would not co-operate, tested at home with 5 mW TX power but during flight 50 mW might have been the problem. 160 degrees FOV camera (10 Euro) but focus at infinity keeps difficult to adjust from home. Images around image 70 look great however. Without GPS the
[10:14] <PE2BZ> little piece of wire beneath the payload did his work as burst indicator ;-) pointing down, payload going up. Pointing sideways or out of the image, payload going down ;-)
[10:15] <Darkside> hah
[10:15] <Darkside> did you recover it?
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[10:18] <PE2BZ> No.
[10:18] <PE2BZ> 90 percent chance of waterlanding between Den Helder and Texel
[10:18] <Darkside> hmm was that a foil balloon?
[10:18] <Darkside> i can see it in one of the last imagew
[10:20] <PE2BZ> No, a yellow 35 gram latex (100 cm) balloon, what you see in the images is the crimp foil on the end of the guitar string type antenna wire, to prevent eye damage when landing.
[10:20] <Darkside> ok
[10:20] <Darkside> well anyway, it seemed to work well!
[10:20] <PE2BZ> https://photos.app.goo.gl/HNRVMJ2MoLAuoFzA7
[10:21] <PE2BZ> Currenly making a second one ;-)
[10:21] <dbrooke> I did isten but received nothing, probably a bit optimistic 8-)
[10:21] <Darkside> bhahahahaha
[10:21] <Darkside> nice payload case
[10:22] <Darkside> anyway, glad to see wenet being used somewhere other than here!
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[10:26] <PE2BZ> dbrooke thanks for trying :-)
[10:26] <PE2BZ> I suppose this one got up to about 10000 m altitude, as was ¨confirmed¨ by an amateur comparing bird view on google earth with the images.
[10:27] <Darkside> how heavy was the payload all up?
[10:27] Action: PE2BZ has to check the wiring to the RFM again. Init works on the right frequency, TX test images acts like it starts but no actual transmission is started. Not an official board but home wired...
[10:28] <PE2BZ> Including the 10 gram chute, 160 gram at most ( 155 gram with chute on the scale and a bit of original RS41 rope to the balloon)
[10:28] <dbrooke> PE2BZ: no problem, it was easy to set up the headless version on my radiosonde auto_rx Pi, shame we can't use wenet here
[10:30] <Darkside> oh someone used the headless version that wasnt me !
[10:30] <Darkside> nice :P
[10:30] <Darkside> dbrooke: technically you can, but at a much lower rate
[10:30] <PE2BZ> that´s indeed ashame... The big pro for wenet is the high image speed. I would like to float one camera at about 3 km altitude which might never be recovered, but receive as much images as possible
[10:30] <Darkside> you'd have to run it at 9600 baud i guess
[10:31] <PE2BZ> But back to the drawing board, the second one does not work, even with a clean SD card
[10:31] <dbrooke> probably
[10:31] <PE2BZ> But a bit of coffee at first :-)
[10:33] <dbrooke> Darkside: well, fsvo 'used', I mean I think it was working but hadn't annything to test it
[10:34] <PE2BZ> Darkside, did you ever build one without the shield and only wired the RFM98 to the Pi header ?
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[10:41] <Darkside> PE2BZ: nope
[10:41] <Darkside> dbrooke: heh
[10:43] <Darkside> in doing some testing on my car RX systems, i have found that crankking the rtlsdr gain up to full does help a lot... if you are not externally noise limited
[10:46] <dbrooke> I've not recently looked at the spectrum down at 432 but the ISM band has become noticeably worse over the last few years, though some of it may be of my own making
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[12:03] <PE2BZ> Darkside, when you remove the callsign from the line to transmit test images ;-) could you add a line to your setup that one should not forget to disable bluetooth.....
[12:03] <Darkside> eh?
[12:04] <Darkside> theres a thing up the top of the setup guide saying you need to enable a particular overlay
[12:04] <Darkside> " In short, you will probably want to add the dtoverlay=pi3-disable-bt line to your /boot/config.txt file."
[12:06] <Darkside> PE2BZ: the test images change will have to be here: https://github.com/projecthorus/wenet/blob/master/test_images/compress_test_images.py#L22
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[12:56] <SpacenearUS> New position from 03AK0SK-11 after 0313 hours silence - 12https://tracker.habhub.org/#!qm=All&q=AK0SK-11
[13:17] <SpacenearUS> New vehicle on the map: 03Xpi - 12https://tracker.habhub.org/#!qm=All&q=Xpi
[13:19] <SpacenearUS> New vehicle on the map: 03N0CALL_chase - 12https://tracker.habhub.org/#!qm=All&q=N0CALL_chase
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[14:04] <SpacenearUS> New position from 03KB1KVR after 03a day silence - 12https://tracker.habhub.org/#!qm=All&q=KB1KVR
[14:11] <SpacenearUS> New position from 03KD5GOM-11 after 03a day silence - 12https://tracker.habhub.org/#!qm=All&q=KD5GOM-11
[14:13] <PE2BZ> Darkside my bad, sorry ! Started by 1:Required hardware...
[14:13] <SpacenearUS> New position from 03ICT3 after 0318 hours silence - 12https://tracker.habhub.org/#!qm=All&q=ICT3
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[14:33] <SpacenearUS> New vehicle on the map: 03PY2UEP-4FSK - 12https://tracker.habhub.org/#!qm=All&q=PY2UEP-4FSK
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[16:30] <SpacenearUS> New vehicle on the map: 03VE3QFP - 12https://tracker.habhub.org/#!qm=All&q=VE3QFP
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[17:23] <SpacenearUS> New vehicle on the map: 03DC2EH-6 - 12https://tracker.habhub.org/#!qm=All&q=DC2EH-6
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[18:46] <SpacenearUS> New vehicle on the map: 03KB0MC-4 - 12https://tracker.habhub.org/#!qm=All&q=KB0MC-4
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[18:58] <SpacenearUS> New vehicle on the map: 03VE3QFP-11 - 12https://tracker.habhub.org/#!qm=All&q=VE3QFP-11
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[19:34] <SpacenearUS> New vehicle on the map: 03PA0MHE - 12https://tracker.habhub.org/#!qm=All&q=PA0MHE
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[19:40] <PE2BZ> Hi, can anyone help me with the url to find my own images from yesterday back on ssdv.habhub.org ? PE2BZ but I do not recall the URL format
[19:44] <daveake> https://ssdv.habhub.org/callsign/YYYY-MM-DD
[19:44] <PE2BZ> thanks Daveake !
[19:44] <daveake> https://ssdv.habhub.org/PE2BZ/2019-08-31
[19:45] <PE2BZ> Saved my day :-)
[19:45] <daveake> It was in my history as I asked last week :)
[19:48] <PE2BZ> Who needs history with #highaltitude in reach ;-)
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[00:00] --- Mon Sep 2 2019