highaltitude.log.20190412

[00:20] <SpacenearUS> New vehicle on the map: 03VK5TRM-9_chase - 12https://tracker.habhub.org/#!qm=All&q=VK5TRM-9_chase
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[00:57] <Ian_> Not one of Ed's creations?
[00:59] <SpacenearUS> New vehicle on the map: 03VK5PW_chase - 12https://tracker.habhub.org/#!qm=All&q=VK5PW_chase
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[01:45] <SpacenearUS> New position from 03U3S31 after 03a day silence - 12https://tracker.habhub.org/#!qm=All&q=U3S31
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[04:49] <SpacenearUS> New position from 03KD0VJI-4 after 0313 hours silence - 12https://tracker.habhub.org/#!qm=All&q=KD0VJI-4
[06:12] <SpacenearUS> New position from 03DAAT_9 after 03a day silence - 12https://tracker.habhub.org/#!qm=All&q=DAAT_9
[06:15] <SpacenearUS> New vehicle on the map: 03YO4SJI-11 - 12https://tracker.habhub.org/#!qm=All&q=YO4SJI-11
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[10:12] <SpacenearUS> New vehicle on the map: 03bare-rs41 - 12https://tracker.habhub.org/#!qm=All&q=bare-rs41
[10:26] <TimMc_> ozonesonde today ^_^
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[10:44] <SpacenearUS> New vehicle on the map: 03PE2BZ-12 - 12https://tracker.habhub.org/#!qm=All&q=PE2BZ-12
[11:00] <PE2BZ> TimMc_, with 34 gram total weight :-)
[11:02] <SA6BSS-4> what balloon?
[11:02] Nick change: SA6BSS-4 -> SA6BSS-Mike
[11:03] <PE2BZ> 36 inch ¨you linked me once before¨ plastic foil balloon, with a bit of unprofessional pre-stretching.
[11:03] <SA6BSS-Mike> hehe, okido
[11:04] <SA6BSS-Mike> 34" , dont know why they keep 36" in description
[11:04] <SA6BSS-Mike> its a 100liters compared to the 125l in the qualtaex
[11:05] <SA6BSS-Mike> im streaaching one as well at home and I got it up to about 238cm around the seam
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[11:06] <TimMc_> PE2BZ: I hope an ozonesonde lands closer :-P (landed in the bush somewhere today)
[11:06] <TimMc_> exit
[11:07] <TimMc_> switched to mobile <3 VPS
[11:07] <SA6BSS-Mike> i have cut a gift wrap ribbon to 240cm and taped it on the balloon, also it seems like time is more importent then pressure, set it over night pressurised makes more at lower pressure then getting it up high momentairly
[11:08] <Lahti> Darkside now the first R year sondes have been hunted https://aijaa.com/LQxR9k
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[11:47] <PE2BZ> Now a little bit up and a little bit down please :-)
[11:47] <PE2BZ> http://predict.habhub.org/#!/uuid=38c8ad265d406bfb99fc4572369306bbfc91ad6d
[11:49] <SpacenearUS> New vehicle on the map: 03VH-GDA_chase - 12https://tracker.habhub.org/#!qm=All&q=VH-GDA_chase
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[13:19] <SpacenearUS> New vehicle on the map: 03PC4L_chase - 12https://tracker.habhub.org/#!qm=All&q=PC4L_chase
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[13:27] <SpacenearUS> New vehicle on the map: 03KN4TIJ-1 - 12https://tracker.habhub.org/#!qm=All&q=KN4TIJ-1
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[13:51] <Lahti> new sonde hunted https://aijaa.com/FzA0Fd
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[15:16] <medad> PE2BZ what type of balloon is that? Latex or superpressure?
[15:16] <medad> I tried to tune in from london but I could not hear it
[15:16] <PE2BZ> It´s a chinese 36 inch foil type ( SA6BSS-Mike would say 34 inch actually)
[15:17] <medad> You could fly both aprs and RTTY?
[15:17] <medad> does it transmit one after the other?
[15:19] <PE2BZ> https://www.aliexpress.com/snapshot/0.html?spm=a2g0s.9042647.6.2.4bf04c4dqC5h0Y&orderId=92806998929002&productId=32699218436
[15:19] <PE2BZ> does this link work ?
[15:19] <medad> no
[15:20] <medad> I think I have seen the listing. Sa6BSS-mike sent it some time ago
[15:20] <PE2BZ> The tracker is an RS41 radiosonde, re-programmed for RTTY and APRS on 432.710 and 432.500 (the 70 cm band APRS frequency for the EU)
[15:20] <PE2BZ> So I did set for 1 APRS string every 10 RTTY strings.
[15:20] <medad> ok. How long does it take to transmit a whole aprs message?
[15:21] <PE2BZ> prrrrrrrt
[15:21] <PE2BZ> dat long....
[15:21] <medad> Ok very nice
[15:21] <medad> Balloon is flying really low I think
[15:22] <PE2BZ> RS41 is powered by one CR123 1400 mA/h battery and weighs 34 gram
[15:22] <medad> Ok. What is the expected battery life?
[15:22] <PE2BZ> That´s as high as it gets with that weight. I had the same type balloon with 67 gram tracker floating at 1550 meter
[15:22] <PE2BZ> 12 hours
[15:22] <medad> Ok.
[15:23] <PE2BZ> Had one flight with 3000 mAh which run over 24 hours.
[15:24] <medad> What is your objective with these flights? round the world flight?
[15:27] <medad> question: what software do you use to track 2 or more balloons on different frequencies. I heard someone say virtual audio cable
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[15:58] <SA6BSS-Mike> medad: yes https://www.vb-audio.com/Cable/ or https://downloads.tomsguide.com/Virtual-Audio-Cable,0301-31100.html
[15:58] <SA6BSS-Mike> for some time I used multple usb soundcards with steromixer
[16:01] <medad> Ok thank you for the info. If all goes well we will launch another pair of balloons on Monday. I want to be able to track both at the same time with the same computer
[16:01] <medad> I think it will be the last time we a launch using the current design. Custom PCB next!
[16:07] <SA6BSS-Mike> thats the way to go if yoy want to keep it lightweight
[16:08] <medad> yes of course.So far we have used off the shelf parts to keep costs low and to learn as much as possible
[16:43] <medad> How do you get the Hysplit feature to work on tracker.habhub.com?
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[16:43] <medad> Is it automatically added to some flights?
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[16:52] <Ian_> PE2BZ the link worked, it was an AliExpress login screen. Whether that worked or not is altogether another matter. I didn't try it.
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[16:54] <medad> after logging it it did not work
[16:55] <PE2BZ> my tracker is near Germany on 432.711 MHz 75 bd 7n2 540 shift
[16:55] <Ian_> The picture on the left varies - smart eh? Ah, maybe not wiley Chinese but Italian. Thanks medad.
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[16:59] <medad> https://www.aliexpress.com/item/10pcs-lot-36-Inch-Clear-Foil-Balloons-Transparent-Air-Ballons-Wedding-Brithday-Party-Decor-Globos-For/32803586452.html
[16:59] <medad> Ian I believe this is the listing
[17:11] <Ian_> Thanks
[17:13] <SA6BSS-Mike> medad: you ask for the hysplit to be aded in habhub channel and an admin activates it
[17:14] <medad> Ok thank you for the information
[17:19] <PE2BZ> my tracker is near Germany on 432.711 MHz 75 bd 7n2 540 shift and I am looking for receivers near Germany, Frankfurt or something
[17:19] Action: PE2BZ is begging for listeners :-)
[17:24] <medad> PE2BZ are you able to send send the audio from the WebSDRs into Fldigi and decode them?
[17:24] <SA6BSS-Mike> yes
[17:24] <PE2BZ> From my websdr(s) ? yes
[17:25] <SA6BSS-Mike> we are looking, nurmberg is closest, monitoring it
[17:25] <PE2BZ> I use Virtual Audio Cable (VAC) to do that
[17:25] <medad> ok so it works
[17:25] <PE2BZ> SA6BSS-Mike, thanks but my battery dropped down do 1.8 Volt so it must be ¨game over¨
[17:25] <SA6BSS-Mike> yep, and no aprs
[17:25] <medad> sad!
[17:27] <PE2BZ> But I managed to get the wanted ascent rate this time, so I am satisfied with the result. Next week looks promising (lot´s of sun, little wind) so I might fly the RTTY / APRS solar tracker :-)
[17:27] <PE2BZ> Do have time to pre-stretch the balloon for that for more as the 5 minutes this afternoon....
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[18:03] <medad> PE2BZ tha balloon seems to have travelled for around 5.5h. not bad!
[18:06] <PE2BZ> I started the tracker at 12:00 local time and it did transmit till 19:00 local time :-)
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[18:08] <SpacenearUS> New position from 03U3B-25 after 0316 hours silence - 12https://tracker.habhub.org/#!qm=All&q=U3B-25
[18:10] <pinus> hi everyone
[18:11] <medad> hello!
[18:14] <PE2BZ> SA6BSS-Mike, what max wind speed would you advise to release a solar floater ? Next thursday 19 degrees and sunny but 21 km/h wind ?
[18:15] <SA6BSS-Mike> aprs with 2x50 cm antenna?
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[18:18] <SA6BSS-Mike> 6 m/s so whats the median wind and whats in the guts?
[18:18] <SA6BSS-Mike> gusts*
[18:20] <SA6BSS-Mike> a small payload with small antennas is usuly no problem releasing in 6 m/s if there is not going to be like 12m/s in the gusts
[18:24] <PE2BZ> No gusts on thursday, that´s the positive side.
[18:24] <PE2BZ> I think I should not launch from QRL at 27 m asl because there is a lot of turbulence around the building.
[18:25] <PE2BZ> Indeed 2 X 50 cm guitar wire as antenna. One up, ¨connected¨ to the wire to the balloon, and one ¨aside¨
[18:26] <SA6BSS-Mike> great, just as I do :)
[18:30] <SA6BSS-Mike> you can bring a small latex balloon and release so you can see how the winds move
[18:36] <PE2BZ> No sun expected here till sunday, have to get the tracker on the map to make a payload doc ;-) will survive, been there, done that.... The payload comes with balloon, straw and a nickle and a dime to check the difference between ¨will lift¨ and ¨won´t lift¨ :-)
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[20:26] <SpacenearUS> New position from 03OAQ-PIS after 03a day silence - 12https://tracker.habhub.org/#!qm=All&q=OAQ-PIS
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[21:02] <SpacenearUS> New position from 03ICSPACE9 after 03a day silence - 12https://tracker.habhub.org/#!qm=All&q=ICSPACE9
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[22:36] <medad> I have installed the virtual audio cable, VB-audio virtual audio cable. Whats next? how do I listen to 2 rtty transmitters and docode them?
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[23:05] <SA6BSS-Mike> start sdrconsole and set it up with two vfo:s, set each vfo with for ex line1 and line2, point each one to seppare instances of dl-fldigi
[23:05] <SA6BSS-Mike> medad: ^^
[23:07] <medad> I use SDR sharp + funcube dongel pro. I run 2 instances of SDRsharp but I cannot indepently tune to 2 different frequencies on the 2 instances of SDRsharp. one follows the other
[23:08] <medad> How do I independently tune to 2 different frequencies?
[23:08] <SpacenearUS> New vehicle on the map: 03KJ4TDM-11 - 12https://tracker.habhub.org/#!qm=All&q=KJ4TDM-11
[23:11] <SA6BSS-Mike> dont think sdr# have multi vfo support, id did in the passed but now I think only sdr-console does
[23:14] <SA6BSS-Mike> I have sdr# v 1331 with dual vfo if you like
[23:14] <SA6BSS-Mike> to have it I can mail it to you
[23:15] <SA6BSS-Mike> seems to be a updated v at 1525 http://www.rtl-sdr.ru/page/obnovlen-auxvfo-plagin
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[23:34] <SpacenearUS> New vehicle on the map: 03VK5TRM-9_chase - 12https://tracker.habhub.org/#!qm=All&q=VK5TRM-9_chase
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[23:51] <SpacenearUS> New position from 03SA6BSS-9 after 034 days silence - 12https://tracker.habhub.org/#!qm=All&q=SA6BSS-9
[23:55] <SA6BSS-Mike> ohh :) over sea of Japan
[00:00] --- Sat Apr 13 2019