Topic 'analogs poor quality' in forum 'Comcast Cable TV' - dslreports.com

Re: analogs poor quality

Wed, 23 Nov 2011 18:33:56 EDT

DrDrew posted :

So digits can do well on a "weak" signal? Cause only the analogs are snowy all others fine.

Most digital boxes can work well with the digital channel signal between -15dBmV and +15 dBmV (as long as SNR is good), just like a cable modem. That's a 30 dB dynamic range.

Many TV's start looking snowy below 0 dBmV and some start having tuner problems above +10 dBmV. That's a 10 dB dynamic range.
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Re: analogs poor quality

Wed, 23 Nov 2011 18:25:02 EDT

andyross posted : Digital will look good with a weak signal, until it gets too weak. Then it will start to pixelate or drop out completely. It's more or less a sharp cliff, whereas analog will just get snowier and snowier.

Re: analogs poor quality

Wed, 23 Nov 2011 18:22:42 EDT

DaveDude posted : So digits can do well on a "weak" signal? Cause only the analogs are snowy all others fine.

Re: analogs poor quality

Tue, 22 Nov 2011 12:27:55 EDT

andyross posted : If they are showing snow, then your signal is weak. Going digital shouldn't affect the analog quality. Maybe some wiring changes, either in your house or your area, caused the signal reduction.

Re: analogs poor qualiry

Tue, 22 Nov 2011 10:58:23 EDT

Joe12345678 posted : they are likely going away soon anyways.

analogs poor quality

Tue, 22 Nov 2011 10:42:09 EDT

DaveDude posted : How come comcast analog channels are so bad? Before they went all digital analogs were in good shape. Now there are always snowy.