Quote:
Originally Posted by Felim_Doyle
Go into Settings / Technical Stuff / Page 2.
You want SNR to be high (>30dB), AGC to be low (<80%), Pre RS Errors to be 0 (a small number are correctable), Post RS Errors to be 0 (anything else will cause pixies and chirps).
I base these figures on my setup. Your experience may differ.
The values will vary greatly from one channel to another. I typically find the documentary channels in the 200 range most prone to problems. They are ususally borderline with SNR at 28dB to 29dB and AGC at 90% to 100% with some occasional Pre/Post RS Errors. Nat. Geo. HD is likely to be in a bad frequency range requiring a lot of bandwidth and so prone to errors.
Check your readings on channel 232 then check all your connections on the wall socket, any splitters and your STB then take the readings again and post both sets here please.
I have more to say on the quirks of this problem but I'll post that later.
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Hi,
Many of my channels are also pixelated including 2 of the new HD channels FX and mutvHD. Are these values different for each channel?
On SNR it says 24.0dB, 32.0dB, 29.0dB
Do all these have to be above 30, or just one?
AGC says -16dBmV, -11dBmV, -13dBmV I have no idea how these figures relate to a percentage value.
Pre RS errors says 0,0, 11 per 0.5s
Post RS Errors says 0,0,0 per 0.5s
So anything wrong with these figures? Probably give Virgin a ring.