David Cain wrote:
You're seeing a normal behaviour of any cable system. Attenuation is frequency dependent, and the higher frequencies have a higher attenuation. You seem to have a low signal to start with, thus the higher frequencies are worst hit.
Regarding the quality of the picture from Tuner 47, prior to amplification, the channels that came in best were VHF 2 and 5. They looked very good indeed, and wouldn't have required any amplification if that was all I wanted to look at. Interestingly, the best channels are at the low end, and channel 69 won't come in at all - maybe we're watching Tuner 47's performance roll off as frequency increases...
Cheers,
Rudy
P.S. This is also why you should keep satellite cable as short as possible. DVB-S signals are in the 2-3 GHz range, and cables tend to have a hight attenuation at those frequencies....
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