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ISS (4)

On the first day of this event I received no signal on the first couple of passes so assumed it was delayed or cancelled. At the time I was just using my dual band vertical so not the best setup. Saturday the 9th I was tied up with other things so didn't give SSTV a second thought. Then early Sunday I saw some good SSTV pictures posted on Twitter and heard there had been a technical problem in the Russian module; all it seems was sorted now.

Keen to see what I could download I went into the shack and fired up the RX and PC; during the next four passes I got some reasonable results given my less than ideal antenna. Signals were very strong but I lost out when the ISS was directly overhead and in the antenna null point.

I've put some of the pictures in my photo gallery and you can see them here.

If you're interested in SSTV pictures sent from the ISS during previous events you can view the ARISS Gallery here.

Wednesday, 31 October 2018 21:46


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ARISS issue an award certificate for submission of SSTV pictures received from the International Space Station. When your pictures are uploaded to the ARISS gallery http://www.spaceflightsoftware.com/ARISS_SSTV/index.php you can claim an award by filling out a questionnaire. I'm not sure exactly what is gleaned from the data but it must give some clues to the ISS radio coverage. Here is my certificate received today for submission of the pictures in my previous blog.

To celebrate the 60th birthday of NASA the international Space Station transmitted a series of twelve pictures; of those I received ten which were fair. I'm quite pleased with them given my antenna is a fixed turnstile about eight feet above ground.

For those new to Slow Scan TV (SSTV) the pictures are converted to audio tones and transmitted over a radio link. In this case a frequency of 145.800 Megahertz. While the frequency is allocated to licenced amateur radio use; anyone with a radio scanner could receive the pictures and decode them with a mobile phone app.

Here are five received this weekend 27 to 28th October 2018. Interference on the pictures can be due to a number of issues; typically movement of the ISS or electrical noise at the receiving station.


Wednesday, 06 June 2018 16:59

Slow Scan TV from the Space Station

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Today I did some preparation for the BATC Activity Weekend which coincides with the IARU ATV Contest. Charging batteries and packing all the 5GHz kit into a crate for Saturday was top of the list.

During a break I remembered a Russian SSTV test was scheduled for today and tomorrow; I popped into the shack and switched on my TS2000. We don't have a satellite antenna so I just left the collinear hooked up; it often works well with low angle passes.

Well before the ISS came over the horizon I could hear she was active; it was a shame because the signal was quickly very strong, all I got was the last third of a picture. I waited for the second picture and received the one below when the ISS was at best 14 degrees above the horizon.

At the start picture three was strong and clear; alas LOS was too soon.

Back to my picking list for the weekend.

Let’s hope the current good weather is still with us then.