PS-52 PICO balloon HF payload WSPR JT9

Discussion about orbiting satellite, and balloon launches
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VK3YT
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PS-52 PICO balloon HF payload WSPR JT9

Post by VK3YT » Sat Sep 05, 2015 11:58 am

FYI,

PS-52 is in the air.

Solar powered party balloon, 25mW TX
TX WSPR, JT9 on 30m and 20m

Dial frequency 10.138700Mhz and 14.095600Mhz (standard WSPR dial frequencies) for WSPR, JT9.
JT9 at 1000Hz

See HF decoding info at http://picospace.net/?cat=34

Tracking as PS-52 on SNUS http://picospace.net/tracker/new
WSPR call sign is VK3ANH http://wsprnet.org/olddb?findcall=vk3anh

IRC channel #picospace on Freenode: http://webchat.freenode.net/?channels=picospace

TX scheduling
Minute - Band - Mode - Condition
:00 - 30m - 2 mins WSPR then two x 1 min JT9 - mandatory
:10 - 20m - 2 mins WSPR then two x 1 min JT9 - if batt full
:20 - 30m - 2 mins WSPR then two x 1 min JT9 - if batt full
:30 - 20m - 2 mins WSPR then two x 1 min JT9 - mandatory
:40 - 30m - 2 mins WSPR then two x 1 min JT9 - if batt full
:50 - 20m - 2 mins WSPR then two x 1 min JT9 - if batt full

Prediction:
Image

Assistance with tracking is appreciated.

Regards,
Andy

VK3YT
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Re: PS-52 PICO balloon HF payload WSPR JT9

Post by VK3YT » Sat Sep 05, 2015 8:11 pm

WSJTX 1.6.0-devel with telemetry option is available on picospace.net

http://picospace.net/wp-content/uploads ... -win32.exe

ZL3LSD
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Re: PS-52 PICO balloon HF payload WSPR JT9

Post by ZL3LSD » Sun Sep 06, 2015 2:37 pm

Hi Andy,

I started using WSJTX 1.5.0-devel on Ubuntu. I found the source code "somewhere" and built it with Cmake. I can't find the latest WSJTX 1.6.0-devel source code anywhere. Do you happen to know where it is?

Thanks & 73
Lorne ZL3LSD

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Re: PS-52 PICO balloon HF payload WSPR JT9

Post by VK3ZYC » Sun Sep 06, 2015 4:38 pm

see topic WSJT-X
may be of some help.

jim

VK3YT
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Re: PS-52 PICO balloon HF payload WSPR JT9

Post by VK3YT » Sun Sep 06, 2015 10:08 pm

ZL3LSD wrote:Hi Andy,

I started using WSJTX 1.5.0-devel on Ubuntu. I found the source code "somewhere" and built it with Cmake. I can't find the latest WSJTX 1.6.0-devel source code anywhere. Do you happen to know where it is?

Thanks & 73
Lorne ZL3LSD
Hi Lorne,
You can find the modified source with telemetry option on picospace.net
http://picospace.net/?p=552
Regards,
Andy

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Re: PS-52 PICO balloon HF payload WSPR JT9

Post by VK3YT » Mon Sep 07, 2015 12:23 pm

Updated modified 1.6.0-devel version for WSJTX now has an option, "PS hopping" to enable band-hopping to match Picospace payload TX schedule, if the rig has CAT.
This is available in WSPR mode

Image

Once that is enabled, select the 10 bands in Schedule. These bands are required for correct frequency mapping and timing.
Note: the "Band Hopping" check box needs to be selected as well.

Image

For full automatic band tracking and WSPR/JT9 decoding, you can run two instances of WSJTX, one for WSPR and one for JT9.
The WSPR instance also switches the frequency to match PS TX schedule if CAT is available.

A new instance can be started from command line with the -r <NAME> option, e.g.
C:\WSJT\wsjtx\bin\wsjtx -r WSPR

VK1KW
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Re: PS-52 PICO balloon HF payload WSPR JT9

Post by VK1KW » Mon Sep 07, 2015 6:54 pm

I don't like the direction PS-52 is headed - looks cold in southern pacific :|
Regards
Rob
VK1KW

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Re: PS-52 PICO balloon HF payload WSPR JT9

Post by VK4ALF » Mon Sep 07, 2015 7:57 pm

Its dropped in altitude too .
Is it Just me or is it propagation but signals on the launch have been fantastic , Interested if Andy has changed the antenna configuration

Len
VK4ALF
Len Falknau VK4ALF

Facebook High Altitude Balloon Australia Discussion Page
https://www.facebook.com/groups/1649591138615809/

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Re: PS-52 PICO balloon HF payload WSPR JT9

Post by VK5EI » Mon Sep 07, 2015 8:09 pm

Last few hours has been nail biting, hopefully just wx conditions :shock:
Attachments
PS-52_07_09_2015_1006utc.jpg

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ZL1RS
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Re: PS-52 PICO balloon HF payload WSPR JT9

Post by ZL1RS » Tue Sep 08, 2015 5:41 am

VK4ALF wrote:... Is it Just me or is it propagation but signals on the launch have been fantastic , Interested if Andy has changed the antenna configuration
Similar thought here, but Andy says the antenna is the same. On the other hand, HF propagation (on 30m especially) was quite good the last couple of days, and generally improves running up to the equinox season.

PS-52 took a dip in altitude but recovered to 7581m before descending again. When last 'heard' propagation was failing ... 20m was dead here and 30m was dropping off in general as well. In the end, at the descent rate of -0.6m/S it probably ended badly :?

PS-52 was heading due south and only 800km from Antarctica, so even if it made a 2nd recovery there is very little daylight there at this time of year to charge the battery.

73,
Bob, ZL1RS in the Bay of Islands at RF64vs
http://www.qsl.net/zl1rs

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Re: PS-52 PICO balloon HF payload WSPR JT9

Post by ZL3LSD » Wed Sep 09, 2015 7:22 pm

VK3YT wrote:
ZL3LSD wrote:Hi Andy,

I started using WSJTX 1.5.0-devel on Ubuntu. I found the source code "somewhere" and built it with Cmake. I can't find the latest WSJTX 1.6.0-devel source code anywhere. Do you happen to know where it is?

Thanks & 73
Lorne ZL3LSD
Hi Lorne,
You can find the modified source with telemetry option on picospace.net
http://picospace.net/?p=552
Regards,
Andy
Super bit of software Andy, 2 instances of WSJT-x Ver 1.6 replaces 2 instances of WSPR and 2 of WSJTx on each band, not to mention the SDR rig software telling it to listen on 2 frequencies plus 2 soundcards or 2 virtual audio cables. A tiny balloon had created a logistical software nightmare. :thumbup:

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Re: PS-52 PICO balloon HF payload WSPR JT9

Post by VK4ALF » Wed Sep 09, 2015 8:36 pm

That is really GOOD .
The schedule is great ,Love only having to have one program open . Looking forward to the next balloon

Len VK4ALF QG63LK
Len Falknau VK4ALF

Facebook High Altitude Balloon Australia Discussion Page
https://www.facebook.com/groups/1649591138615809/

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