by DeEmEx » Mon Jun 14, 2010 6:31 am
Quick look on 21.6°E:
1) 11394 - H - 17600 → old Horizon Satellite Services freq, signal looks like combination of 32APSK + 1PSK (1st quadrant). FEC+MODE values on meter ignore.
2) 11358 - V - 7000 → this one signal is any kind of unstandard QPSK signal, constellation shows 4 clusters, but only first cluster (1st quadrant) is active, other three clusters are empty. Mode and FEC are stable on QPSK 1/2, but dont think that FEC is 1/2, meter cant recoqnize correctly FEC on this unstandard or APSK signals, like on 16APSK shown before, meter shows 1/2, but 16APSK doesnt know 1/2. So FEC please ignore.
3) 11186 - H - 2000 → also this signal is any unstandard kind of QPSK signal, constellation shows 4 clusters, mode is also stable in meter (unchanging), but FEC is switching, one time is 1/2, one time is 8/9 and this state is repeating again and again.
Can somebody can tell me what that signals really are? What modifications, ..., TBS6925 locks them?
Regards,
DeEmEx
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- 11394--H--17600.jpg (30.96 KiB) Viewed 11478 times
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- 11358--V--7000.jpg (47.48 KiB) Viewed 11478 times
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- 11186--H--2000.jpg (27.63 KiB) Viewed 11478 times