This weekend gave me another chance to receive slow-scan TV (SSTV) images from the International Space Station. These images were transmitted to commemorate the 40th anniversary of the Apollo-Soyuz Mission. The usable passes from my home location were at a bit early times: 05:30, 07:10 and 08:43. And I really like to sleep out on Sunday, especially since I'm currently quite tired. So I opted to only go for the 08:43 pass and see what I could get. Timing of images was also bad: when I started to hear the ISS I heard the tones of the end of an image. But later a new image started and I managed to receive the whole image although some noise in the middle (some building in the way probably) made qsstv break the image in two parts, which I fixed using the gimp. Used equipment: laptop with gpredict for calculating azimuth/elevation and frequency correction, a tripod, the Arrow antenna, the FT-857 radio. I recorded the audio on the laptop with audacity and did the decoding with qsstv later, which gave me the opportunity to try it a few times to get the best decode.
This weekend gave me another chance to receive slow-scan TV (SSTV) images
from the International Space Station. These images were transmitted to
commemorate the 40th anniversary of the Apollo-Soyuz Mission.
The usable passes from my home location were at a bit early times:
05:30, 07:10 and 08:43. And I really like to sleep out on Sunday, especially
since I'm currently quite tired. So I opted to only go for the 08:43 pass
and see what I could get. Timing of images was also bad: when I started
to hear the ISS I heard the tones of the end of an image. But later a new
image started and I managed to receive the whole image although some noise
in the middle (some building in the way probably) made qsstv break the image
in two parts, which I fixed using the gimp.
Used equipment: laptop with gpredict for calculating azimuth/elevation and
frequency correction, a tripod, the Arrow antenna, the FT-857 radio. I
recorded the audio on the laptop with audacity and did the decoding with qsstv
later, which gave me the opportunity to try it a few times to get the best
decode.