Originally Posted by jafa
Nick here from Silicondust.
As the first test I would recommend removing one of the two amplifiers.
If the problem station is a stronger signal it could be that the first amplifier is overloading the second amplifier, or the two combined are overloading the HDHomeRun.
You don't need 100% signal strength.
Thanks for the suggestion.
I've tried the following configurations:
Mohu Sky HD Amplifier direct to HomeRun, the strength and symbol quality are 100%, signal quality is the same, about 60-75%
I believe, this first amplifier is required. If I plug the antenna directly into the HD HomeRun, everything is dead, and if I plug it into the standard TV amp, same thing.
So from there:
Sky HD Amp -> +15dB amp -> -3.5dB Splitter -> HomeRun = 60-75%
Sky HD Amp -> +15dB amp -> -7 dB Splitter -> HomeRun = 60-75%
I do see some peaks to 80% every now and then, which is an improvement, but not perfect.
Like I said before, the Mohu Sky coax was routed parallel to some AC voltage, within 6" for 18" total, then perpendicular to the mains input to my AC Panel. In this routing I was seeing 55-65% signal quality. Look 60Hz interference!! So I moved the coax to be farther away from AC by ~12" for a short distance, approx 3" of the coax run in parallel at a 12" distance, and then it is several feet away. This boosted my signal quality.
I think it's pretty obvious it is my wiring that is causing the injection of noise, I'm just unsure why that specific channel is so susceptible. I am going to attempt to monitor the signal quality while adjusting the pitch and yaw of the antenna. If I can boost the signal quality to 80% stable, I think it will be fairly resolvable.
Thanks again Nick!! When are you guys going to make a rack mountable box with 4-5 tuners??