highaltitude.log.20200906

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[01:11] <SpacenearUS> New vehicle on the map: 03KK4IAW-1 - 12https://tracker.habhub.org/#!qm=All&q=KK4IAW-1
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[01:55] <SpacenearUS> New vehicle on the map: 03LUX - 12https://tracker.habhub.org/#!qm=All&q=LUX
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[02:37] <Brick> hello
[02:43] <Darkside> hi
[02:46] <Brick> This room usually this quiet?
[02:48] <Darkside> depends on the time of day!
[02:48] <Darkside> right now all the UK peeps are asleep
[02:48] <Brick> Ahh fair enough. where are you situated?
[02:49] <Darkside> South Australia
[02:50] <Brick> Nice! I've been to Adelaide, Coober Pedy, Kangaroo Island
[02:51] <Darkside> where are you located?
[02:52] <Brick> Seattle
[02:52] <Brick> You do HAB launches?
[02:53] <Darkside> yep
[02:53] <Darkside> out of Adelaide, SA
[02:57] <Brick> nice
[02:57] <Brick> I've really only tagged along helped on one in the past, but now that I got a bit of free time, I am planning one
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[02:57] <Brick> got most of it lined up, think Ill launch next month
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[05:03] <SpacenearUS> New position from 03PS-76 after 0315 hours silence - 12https://tracker.habhub.org/#!qm=All&q=PS-76
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[06:45] <SpacenearUS> New position from 03K9APX-3 after 0313 hours silence - 12https://tracker.habhub.org/#!qm=All&q=K9APX-3
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[07:56] <SpacenearUS> New vehicle on the map: 03DL7AD-11 - 12https://tracker.habhub.org/#!qm=All&q=DL7AD-11
[08:18] <SpacenearUS> New vehicle on the map: 03ADRASEC24SWL2401_chase - 12https://tracker.habhub.org/#!qm=All&q=ADRASEC24SWL2401_chase
[08:20] <SpacenearUS> New vehicle on the map: 03ADRASEC24_SWL-2401_chase - 12https://tracker.habhub.org/#!qm=All&q=ADRASEC24_SWL-2401_chase
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[08:29] <kokey> what's the smallest size helium cylinder that will work for this?
[08:29] <PE2BZ> kokey that depends mostly on payload weight and balloon size
[08:30] <PE2BZ> I fly wsrp trackers on 90 cm foil balloons, 0,24 m3 fits 4 - 6 flights
[08:30] <PE2BZ> For one 100 gram Hwoyee ballon one balloon gas 0,42 m3 is good for 3 m/s with 120 gram payload
[08:31] <kokey> my gut feel is that i'm more likely to do pico style launches
[08:32] <SpacenearUS> New position from 03PB0AHX-4FSK after 038 days silence - 12https://tracker.habhub.org/#!qm=All&q=PB0AHX-4FSK
[08:33] <SpacenearUS> New vehicle on the map: 03HABR-2 - 12https://tracker.habhub.org/#!qm=All&q=HABR-2
[08:34] <kokey> PE2BZ: oh you mean just the disposable cylinders?
[08:35] <PE2BZ> Pico style (the wspr trackers for me are around 8 gram) on a foil balloon need about 0.03 m3 HE
[08:35] <kokey> interesting, so I guess any reusable over 0.42m3 should be enough for everything I probably want to do
[08:36] <PE2BZ> Yes indeed, the disposable onex. You need a regulator on a HE cylinder with 100 or 200 bar pressure because the balloon is overfilled in seconds.
[08:36] <PE2BZ> kokey, including the failures ;-)
[08:36] <PE2BZ> If you travel to http://www.randomengineering.co.uk/Random_Aerospace/Balloons.html
[08:36] <kokey> well, with 'over' I mean as in multiples over
[08:37] <PE2BZ> and set the balloon for any 30 gram type, the gas on 97 %, the payload weight (10 gram for starting) and the ascent rate below 1 m/s you are given the amount of HE needed
[08:38] <Darkside> PE2BZ: got somethin ggoing up today?
[08:38] <kokey> so a 10l cylinder sounds like it will be well more than enough, not sure if they come with the right regulator for this
[08:38] <PE2BZ> So for my 10 gram and 1 m/s example I would need 0.042 m3 which I could do 10 flights from a 0,42 disposable. However I tend to overfill and have to release HE after that, so I usually get to 6 balloons
[08:39] <PE2BZ> Over here ( in the Netherlands) the rent cylinders do come without regulator.
[08:39] <kokey> I'm looking at this https://www.shopairproducts.co.uk/product.php?id=14489
[08:40] <PE2BZ> 2.61 m3 is good for 43 pico flights with 12 gram payload
[08:43] <kokey> do the regulators fit on the rent cylinders?
[08:44] <PE2BZ> Totally depends on cilinder type and regulator model. We once got medical HE and the regulator did not fit. Ater that we contacted the company (the price was 3 times the usual too...) and got that corrected.
[08:45] <kokey> ah ok, I'll have to look at that carefully then
[08:45] <PE2BZ> But for pico balloons I would recommend to start with an amazon 0.42 balloon gas it[ very easy to fill those foil balloons with that
[08:46] <kokey> cool, kids birthdays coming up so want to do some balloons but I thought i'll check if I could hit more than two birds with one balloon
[08:46] <kokey> if I don't have a good plant for a reusable cylinder and a regulator when the first birthday comes, amazon 0.42 it will be
[08:47] <kokey> the 0.42 is cheaper than I remember them being back in 2012
[08:48] <PE2BZ> I noticed it[ cheaper over here, last time I bought 2 of them for 60 Euro . But it varies, and it pays to have a good look on the www
[08:48] <kokey> thanks for your help!
[08:49] <PE2BZ> YW
[08:50] <SpacenearUS> New vehicle on the map: 03F4igg_chase - 12https://tracker.habhub.org/#!qm=All&q=F4igg_chase
[08:52] <PE2BZ> Darkside, no, next sunday.
[08:53] <PE2BZ> Testing the payload doc gives me a small problem however. Launch is at UTC but no time shows.
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[09:16] <kokey> what do you for power on these sub 10 gram payloads?
[09:17] Nick change: eor_ -> eor
[09:18] <SA6BSS-Mike> solar only
[09:18] <SA6BSS-Mike> 6psc of 39x19 usuly works well
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[09:21] <kokey> how much power do you get out of 6 pieces?
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[09:23] <SA6BSS-Mike> depedning on solae angle
[09:23] <SA6BSS-Mike> but usuly the boards run to and from about 17°
[09:24] <SA6BSS-Mike> if you use a standard gps ca 25mA , 328 4mA and a si5351 or si4060
[09:25] <SA6BSS-Mike> 30mA
[09:26] <kokey> do you add a capacitor or just straight from the cells?
[09:27] <SA6BSS-Mike> just traight to the cells, no cap, you can ad a3,3v LDO to keep a bit safer
[09:29] <SA6BSS-Mike> *from
[09:29] <SA6BSS-Mike> and a couple of smal nF caps on VCC line
[09:30] <SA6BSS-Mike> * si5351 or si4060 30-45mA
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[10:59] <SpacenearUS> New position from 03BB10 after 0312 hours silence - 12https://tracker.habhub.org/#!qm=All&q=BB10
[11:16] <SpacenearUS> New position from 03N4XWC-1 after 039 hours silence - 12https://tracker.habhub.org/#!qm=All&q=N4XWC-1
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[12:19] <JohnLaidler_> kokey: As you are in the southern hemisphere don't forget your balloons don't go up but down - so you need to fill them with a heavier than air gas. :)
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[13:14] <SpacenearUS> New vehicle on the map: 03F4kkd-11_chase - 12https://tracker.habhub.org/#!qm=All&q=F4kkd-11_chase
[13:40] <SpacenearUS> New vehicle on the map: 03Py5abm_chase - 12https://tracker.habhub.org/#!qm=All&q=Py5abm_chase
[13:57] <SpacenearUS> New vehicle on the map: 03F0FER_chase - 12https://tracker.habhub.org/#!qm=All&q=F0FER_chase
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[14:11] <SpacenearUS> New vehicle on the map: 03W4FY-11 - 12https://tracker.habhub.org/#!qm=All&q=W4FY-11
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[14:52] <SpacenearUS> New position from 03KI6RC-12 after 0314 hours silence - 12https://tracker.habhub.org/#!qm=All&q=KI6RC-12
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[16:39] <SpacenearUS> New vehicle on the map: 03DC2EH-14 - 12https://tracker.habhub.org/#!qm=All&q=DC2EH-14
[16:41] <SA6BSS-Mike> saw this in airspy channel https://alexander.n.se/grimetons-sister-station-shall-reappear-in-the-stratosphere/
[16:45] <PE2BZ> And I do worry about 2 times 5m10 antenna wire....
[16:52] <SA6BSS-Mike> :)
[17:53] <SpacenearUS> New vehicle on the map: 03KD8UUD-11 - 12https://tracker.habhub.org/#!qm=All&q=KD8UUD-11
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[20:44] <n0rc> Is there a windows program that will do LMS6 and feed the site?
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[21:13] <SpacenearUS> New vehicle on the map: 03KG7SSH-11 - 12https://tracker.habhub.org/#!qm=All&q=KG7SSH-11
[21:17] <happysat> n0rc wsl
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[22:06] <SpacenearUS> New vehicle on the map: 03N7AGF-3 - 12https://tracker.habhub.org/#!qm=All&q=N7AGF-3
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[22:23] <n0rc> happysat do you mean Windows sub-system for Linux?
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[22:32] <Darkside> happysat: running auto_rx in WSL is not really recommended..
[22:45] <happysat> Darkside i have to disagree.. im running auto-rx, chasemapper and cusf predict with gps in wsl since may without zero crashes or any other wierd problems, its a better solution then w7 and anaconda
[22:46] <happysat> i tried on all ubuntu wsl-1 even 20.10 with python3 only works great
[22:46] <happysat> only no real usb detection ;)
[22:48] <happysat> horus-gui udp to wsl chasemapper also works
[22:48] <happysat> imho its better then sdr#, sondemonitor rs41 tracker ect
[22:49] <Darkside> you could also just run it on a pi or something
[22:49] <happysat> i have for mobile use on a 3b+
[22:49] <Darkside> but ok
[22:50] <Darkside> at least it works
[22:50] <Darkside> i don thave a windows 10 machine to experiment with
[22:50] <happysat> im on dual boot w10 ltsc and ubuntu 18.04 ever since i got it running on wsl i did touch ubuntu in months :)
[22:51] <happysat> how ever i think wsl2 is a different story
[22:51] <happysat> with usb and the rtl_fm trick
[23:02] <happysat> https://imgur.com/a/xmxpI1e almost no cpu load
[23:06] <SpacenearUS> New vehicle on the map: 03VA7MCE-9 - 12https://tracker.habhub.org/#!qm=All&q=VA7MCE-9
[23:08] <SpacenearUS> New position from 03N4XWC-1 after 039 hours silence - 12https://tracker.habhub.org/#!qm=All&q=N4XWC-1
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[23:43] <Darkside> happysat: can you run up python please
[23:43] <Darkside> and run:
[23:44] <Darkside> import platform
[23:44] <Darkside> platform.system()
[23:44] <Darkside> and tell me what the output it?
[23:46] <happysat> yes mom.
[23:47] <Darkside> well you're asking me to make changes to auto_rx to support a platform i have no access too...
[23:47] <Darkside> so i'm trying to find out other ways of detecting WSL
[23:49] <happysat> it says linux
[23:49] <Darkside> bah
[23:49] <Darkside> ok
[23:49] <happysat> ye sno problem i cna help
[23:49] <Darkside> ill use the check you mentioned in the github issue
[23:49] <Darkside> wont get to it for a few days
[23:50] <happysat> im not sure it work they mention it overhere also https://www.reddit.com/r/bashonubuntuonwindows/comments/85jghk/how_to_allow_python_to_know_im_on_windows/
[23:50] <happysat> anyway thanks :)
[23:51] <happysat> i always have to edit utils.py with updates, the checks and eturns you mentioned before
[23:54] <Darkside> yeah i can replace the current check with a is_native_linux check of some sort
[23:55] <Darkside> which checks if its linux, and then checks if its WSL
[00:00] --- Mon Sep 7 2020