SEEDS, Cute-1.7+APDII and COMPASS-1 over West Malaysia
Dear All,
Pass report for SEEDS, Cute-1.7+APDII and COMPASS-1 over West Malaysia
Time: 1054 Local or 0254 UTC
Max Elevation: 55 degrees
Satellites: Cute-1.7+APDII & COMPASS-1
http://www.9w2qc.net/amsatbb/cute05may1054.mp3
After 3 minutes, QSYed to SEEDS which was in digitalker mode. Below is the best SSTV picture from SEEDS. Can anyone explain why the image is still noisy despite a full quieting 59+10db signal (with preamp on)?
http://www.9w2qc.net/amsatbb/seeds05may1054.jpg
Also had an earlier 3 degree pass that was copied unattended. This was an exclusive SEEDS pass which was also in digitalker mode.
73,
Sion Chow Q. C.,
9W2QC.
On 5 May 2008 at 12:30, Sion Chow Q. C. (9W2QC) wrote:
Dear All,
Pass report for SEEDS, Cute-1.7+APDII and COMPASS-1 over West Malaysia
Time: 1054 Local or 0254 UTC
Max Elevation: 55 degrees
Satellites: Cute-1.7+APDII & COMPASS-1
http://www.9w2qc.net/amsatbb/cute05may1054.mp3
After 3 minutes, QSYed to SEEDS which was in digitalker mode. Below is the best SSTV picture from SEEDS. Can anyone explain why the image is still noisy despite a full quieting 59+10db signal (with preamp on)?
The problem came from the background waves pattern as it was coming from an unregulated voltage or something is added in the signal from the original recording? I checked this week end on HF some SSTV transmissions HF and theses waves pattern where not present.
Luc Leblanc VE2DWE Skype VE2DWE www.qsl.net/ve2dwe WAC BASIC CW PHONE SATELLITE
After 3 minutes, QSYed to SEEDS which was in digitalker mode. Below
is the
best SSTV picture from SEEDS. Can anyone explain why the image is
still
noisy despite a full quieting 59+10db signal (with preamp on)?
The problem came from the background waves pattern as it was coming from an unregulated voltage or something is added in the signal from the original recording? I checked this week end on HF some SSTV transmissions HF and theses waves pattern where not present.
Luc Leblanc VE2DWE Skype VE2DWE www.qsl.net/ve2dwe WAC BASIC CW PHONE SATELLITE
Luc,
Thank you for the suggestion. I was thinking that some inaccuracy with the recording but did not think about the unregulated voltage that you suggested. Same here, SSTV decoded of HF are clear so as that on VHF.
73, Sion Chow Q. C., 9W2QC.
participants (2)
-
Luc Leblanc -
Sion Chow Q. C. (9W2QC)