I was able to view the diagnostic screen, but the numbers I saw confused me somewhat. I recall that the SNR under "OOB Status" was listed at "fair" (around 19 dB, I think), and AGC was "good" (I think it was somewhere around 30%).
I also checked the values under "Inband status", but there were only numbers listed for Tuner 1. Tuner 2 was there, but there was no information for it. Both SNR and AGC for Tuner 1 were listed as "good" (I think it was around 33 dB and 55% respectively).
Going off of the configuration section on wikibooks, I'm a little bit confused at what this indicates. It's unclear what the difference between OOB and Inband is, and what I can do to try to improve things. It's suggested that a low SNR (such as my "fair" 19 dB in OOB) could be improved by eliminating splitters (the only splitter is the cable company installed one that goes to my cable modem) or adding an amplifier. However, it also indicates that an AGC under around 50% could indicate too strong
of a signal.
And if I do try to boost or attenuate the signal, will that effect the OOB Status or the Inband Status, or both? I'm very confused.
I suppose my next step in all of this is to try plugging the DVR directly into the receiver to try to eliminate the TV as a possible cause for the audio dropouts. I just hoped to avoid that since it's going to add a minor complication to my home theater setup.
It also appears that I'm on a fairly old firmware and software, but I don't suppose there's much I can do about that. Any tips on lighting a fire under the cable company to get them to update their stuff? Currently running firmware 12.31 (no 30-second skip
) and software 73.44, I believe.