Avermedia 771 DVB-T performance? Also how does the Mythbox scan work?
I finished my Mythbox last night and tried to use it.. The video performance was awful. The picture and sound of live TV was breaking up, freezing, the sound popping and squesking.
THE NIGHT BEFORE THE BOX PERFORMED FLAWLESSLY!
I normally use a Freeview DVB-T settop box connected to my LCD TV. This still worked fine, even when the Mythbox was failing last night.
I have not changed anything so I am at a loss to understand why the Mythbox has become so bad.
I noticed that on both the Freeview box and the Mythbox ( setup scan), showed a slightly lower Signal strength than usual, 90% instead of 95%.
It does NOT appear to be a bandwidth / latency problem in the Mythbox. Retuning cards in the Mythbox did not improve the performance.
I tried all the various tuning tips / settings for the Mythbox, I could only make the performance worse, not better.
My new question is... How do people find the Avermedia 771 for signal performance?
Is it intolerant of low signals?
Or is it the sig to noise ratio that is bad in my box? ( If the signal is OK but the noise is high from local generated noise, this will have the same effect in clobbering the signal).
What is the "normal" operating signal to noise ratio people see when using their Myth boxes?
REGARDING the DVB-t scan system.. Is there a mechanism to optimise the signal strength?
When the box is scanning I see the screen with the sig strength and noise bars, and the statement offset / 1 offset 2 Does this get set in the database?
If so, with TWO cards, what is the correct way to set up the scans so as to ensure that BOTH cards are tuned for maximum gain?
Is ther an easy wasy to look at the card tuning entries in the Myth mySQL database?