Cable box data at cable company.

amdx · 2015-09-16T21:25:32+00:00

I've been having pixelation and audio dropouts on the cable at my boat. I called the cable company and they read the data on my box. Cisco RMG 100 with PS LiteON Model PB=1300-012SA. They said the signal strength is ok and the power is a little low, but ok. He said 5% low. Signal that I read was -5dbmv to -11dbmv. I ask, "what do you mean my power is a little low?" He said the AC is low. I said, how can you see that, it is powered by a switching supply and regulated. I suggested that many supplies will work from 80V to 220V. It is separate power supply. I don't know what low means to the cable company, I haven't checked lately, but I expect my AC is above 117V. Do you see any way the cable company could know my AC voltage? Mikek PS. they loaded updated software, it didn't fix the problem.

Sep 16, 2015 22 Replies

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DecadentLinuxUserNumeroUno 11 years ago

On Sat, 19 Sep 2015 09:33:56 -0500, amdx Gave us:

The only thing that can cause "pixelation" or other visible "artifacts" (the right term for it) in an mpeg encoded digital signal is BER being higher than about 10%.

The only other way is if it is what was actually transmitted by the channel provider or the cable company down-resing it to save bandwidth (which is also fairly common).

They put damaged signals on the system all the time, because they used to have a QA guy sit there "scanning the band" in the past. They do not so much any more as there are too many channels. So quality went down and the price went up.

Get ready for 8k... Sure...

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