PS-60 PICO balloon APRS Olivia

Discussion about orbiting satellite, and balloon launches
Post Reply
VK3YT
Forum Diehard
Posts: 367
Joined: Mon Jan 20, 2014 8:43 am

PS-60 PICO balloon APRS Olivia

Post by VK3YT » Thu Jan 28, 2016 6:52 pm

Hi all,

The wind pattern looks interesting this weekend over the Eastern states and PS-60 will be up there to explore.

Planned for release at 7am Sat 30 Jan 2016
Solar powered party balloon, 10mW TX
APRS on 145.175Mhz
Olivia 8/250 with RSID on 434.649Mhz USB (Dial frequency)

Tracking as PS-60 on SNUS http://tracker.habhub.org/#!mt=roadmap& ... ay&f=PS-60
and VK3YT-11 on APRS.FI http://aprs.fi/#!mt=roadmap&z=11&call=a ... &tail=3600

Prediction:
Image

Assistance with tracking is appreciated.

Instructions for tracking here http://picospace.net/?p=736
Ignore the payload list in df-fldigi as that doesn't support autoconfig for Olivia yet.

Andy

VK3KCX
Frequent Poster
Posts: 108
Joined: Wed Jun 27, 2012 6:08 am

Re: PS-60 PICO balloon APRS Olivia

Post by VK3KCX » Fri Jan 29, 2016 9:40 am

Hi Andy, great to see another UHF mission, I hope the weather picks up a bit. I know that there are a lot of people out there that have never fiddled with Olivia mode, just in case anybody was thinking about it and wanted an opertunity to try and decode some before Saturday morning I have set up a test signal on 434.650 dial frequency, 1500 Hz. on the waterfall. the TX will air every 5 min, ~5W into a vertical antenna from my Mt. Dandenong QTH.

I'll make sure that it is off well before theh launch, please contact me if this causes any problems.

- David.

User avatar
VK5PJ
Forum Diehard
Posts: 762
Joined: Sat Apr 02, 2005 7:38 pm
Location: Barossa Valley S.A
Contact:

Re: PS-60 PICO balloon APRS Olivia

Post by VK5PJ » Sat Jan 30, 2016 4:50 pm

Hi,
have just noticed that PS60 has stopped sending its latitude...

at 06:11Z I get..
  • $$PS-60,279,06:11:06,-34.0869,139.8777,9445,99.03,9,3,11,4328,1270 0103*A5BD
the next decode at 06:15 and after have a vacant latitude value
  • $$PS-60,281,06:15:55,,139.9230,9475,101.12,11,3,9,4348,1003 0101*4BC5
    $$PS-60,283,06:21:17,,139.9784,9426,100.29,13,3,9,4320,1187 0106*03D8
    $$PS-60,292,06:40:58,,140.2001,9420,112.03,14,3,7,4348,0937 1102*CA57
unsure what this signifies as I still get a valid checksum that uploads.
Peter Sumner, vk5pj
You have enemies? Good. That means you've stood up for something, sometime in your life.
- Winston Churchill

VK3KCX
Frequent Poster
Posts: 108
Joined: Wed Jun 27, 2012 6:08 am

Re: PS-60 PICO balloon APRS Olivia

Post by VK3KCX » Sat Jan 30, 2016 5:45 pm

I did a lot better this time, my last decode was @ 2:05 from -37.1519 140.6281 - a distance of 422Ks on a 6 dB vertical stick.
Pretty happy with that!

- David

VK3YT
Forum Diehard
Posts: 367
Joined: Mon Jan 20, 2014 8:43 am

Re: PS-60 PICO balloon APRS Olivia

Post by VK3YT » Sat Jan 30, 2016 7:31 pm

Thanks for tracking guys,
Looks like there might be issue with missing lat in some of the telemetry, I will have a look and try to find out what happened.

Regards,
Andy

VK2QW
Forum Novice
Posts: 6
Joined: Mon Jan 28, 2013 8:32 am

Re: PS-60 PICO balloon APRS Olivia

Post by VK2QW » Sun Jan 31, 2016 3:23 pm

HABHUB doesn't seem to be showing any UHF spots. I've been receiving and uploading OK for the last 30mins or so. Not showing on the tracker.

Tony VK2QW...

User avatar
VK5PJ
Forum Diehard
Posts: 762
Joined: Sat Apr 02, 2005 7:38 pm
Location: Barossa Valley S.A
Contact:

Re: PS-60 PICO balloon APRS Olivia

Post by VK5PJ » Sun Jan 31, 2016 5:44 pm

Hello Tony,
check your decode line, you may find there is no values for latitude in there. This happened some time yesterday arvo, seems PS60 has stopped sending that value and there are two comma's in there (see my earlier post)
VK2QW wrote:HABHUB doesn't seem to be showing any UHF spots. I've been receiving and uploading OK for the last 30mins or so. Not showing on the tracker.
Tony VK2QW...
Regards,
Peter Sumner, vk5pj
You have enemies? Good. That means you've stood up for something, sometime in your life.
- Winston Churchill

VK2QW
Forum Novice
Posts: 6
Joined: Mon Jan 28, 2013 8:32 am

Re: PS-60 PICO balloon APRS Olivia

Post by VK2QW » Sun Jan 31, 2016 6:12 pm

Thanks Peter,

I should have realised that was the problem.

Cheers,

Tony VK2QW...
Cheers

Tony VK2QW

VK3KCX
Frequent Poster
Posts: 108
Joined: Wed Jun 27, 2012 6:08 am

Re: PS-60 PICO balloon APRS Olivia

Post by VK3KCX » Sun Jan 31, 2016 6:52 pm

Not sure what is going on there, I had some good UHF decodes earlier today when it was in VIC.

VK1JA
Forum Diehard
Posts: 349
Joined: Tue Sep 14, 2010 9:50 pm

Re: PS-60 PICO balloon APRS Olivia

Post by VK1JA » Sun Jan 31, 2016 7:12 pm

What Hz should I be seeing PS-60 on the waterfall?

VK3YT
Forum Diehard
Posts: 367
Joined: Mon Jan 20, 2014 8:43 am

Re: PS-60 PICO balloon APRS Olivia

Post by VK3YT » Sun Jan 31, 2016 7:16 pm

VK2QW wrote:Thanks Peter,

I should have realised that was the problem.

Cheers,

Tony VK2QW...
Yes Tony, looks like the issue was with the missing lat in a number of packets. I have a good number of samples from you and Peter that will help with finding out what happened.
Thanks
Andy

VK3YT
Forum Diehard
Posts: 367
Joined: Mon Jan 20, 2014 8:43 am

Re: PS-60 PICO balloon APRS Olivia

Post by VK3YT » Sun Jan 31, 2016 7:28 pm

VK1JA wrote:What Hz should I be seeing PS-60 on the waterfall?
With the dial freq of 434.649Mhz the Olivia tones should start between 1100 and 1500hz
Regards,
Andy

VK2XTC
Frequent Poster
Posts: 107
Joined: Sun Mar 08, 2015 3:47 pm

Re: PS-60 PICO balloon APRS Olivia

Post by VK2XTC » Sun Jan 31, 2016 7:39 pm

Whoever wrote the prediction software seems to have nailed it !!

The match between the predictions and actual is really close .

That's some piece of code . :clap:


Brian

VK3ZYC
Forum Novice
Posts: 38
Joined: Sat Apr 02, 2005 9:14 pm
Location: Longford Vic.

Re: PS-60 PICO balloon APRS Olivia

Post by VK3ZYC » Sun Jan 31, 2016 7:55 pm

PS60 seems to be sending lats and longs atm.

$$PS-60,947,09:45:59,-37.7433,150.6699,9496,91.11,11,3,-38,3200,0120 0101*B6BB

Jim, Vk3zyc

VK1KW
Frequent Poster
Posts: 63
Joined: Fri Aug 31, 2012 9:59 am
Location: Canberra QF44mt

Re: PS-60 PICO balloon APRS Olivia

Post by VK1KW » Mon Feb 01, 2016 6:58 am

PS-60 is missing the Lat number again consequently the uploads do not seem to appear in the HABHUB tracking data.
Secondly the DL-FLDIGI does not fill the line of parameters above the green decode line however it says the checksum is good and I now have corrected the upload problem I was having with W10.
Noted also DL-FLDIGI hangs / dies and requires a reload. Maybe due previous W10 upload problem buffer full maybe?
Would be nice to have PS-60 in the active payload list.
Regards
Regards
Rob
VK1KW

VK1KW
Frequent Poster
Posts: 63
Joined: Fri Aug 31, 2012 9:59 am
Location: Canberra QF44mt

Re: PS-60 PICO balloon APRS Olivia

Post by VK1KW » Mon Feb 01, 2016 8:49 am

PS-60 close by and decoding most Olivia data with good checksum but only those with Lat data included seem to be used by HABHUB tracking.
Regards
Rob
VK1KW

VK1KW
Frequent Poster
Posts: 63
Joined: Fri Aug 31, 2012 9:59 am
Location: Canberra QF44mt

Re: PS-60 PICO balloon APRS Olivia

Post by VK1KW » Tue Feb 02, 2016 2:46 pm

Of course the problem with APRS and /or UHF means that it may only be seen over the continent where APRS may be received.
But the third option is UHF and WSPR/JT9 to know where it is most of the time.
And APRS good for up and down flights but problematical due FEW APRS stations can receive that APRS type of fast coding for some reason plus packet crashes.
I assume its necessary to have open squelch decoding to capture APRS data?
but good fun :thumbup:
Regards
Rob
VK1KW

VK5EI
Frequent Poster
Posts: 118
Joined: Sun Sep 02, 2012 8:55 pm

Re: PS-60 PICO balloon APRS Olivia

Post by VK5EI » Tue Feb 02, 2016 4:53 pm

The flight prediction model is very close, Im getting dizzy looking at it :crazy:
Attachments
PS-60_2016_2_2_0651utc.jpg

Post Reply