[mythtv-users] PVR-500 saga continues

John Drescher drescherjm at gmail.com
Sun Feb 25 23:32:26 UTC 2007


> Q: What is "LNA"?
>
Low noise amplifier. Basically this is a cheap poor quality amp that
is on the board.

> I had problems with my PVR-500 (MCE) also, where tuner 1 had a good
> picture but tuner 2 was snowy.  I wrote to Hauppauge, and they sent me a
> replacement card, but it had the same problem.  After googling about it,
> I found mention of adding a signal booster to the line, and tried that.
> I bought a Motorola 15db cable TV signal booster, and put that into the
> line between the splitter and the PVR-500 (the other branch from the
> splitter goes to a cable modem).  The picture is now a lot better on
> tuner 2, except for the lower channel numbers (us-cable, Comcast,
> analog, no HD) which are snowy on both tuners.  I also see the faint
> diagonal lines on most channels, and I would love to get rid of them.
>
The faint diagonal lines are generally caused by too much amplification.

> I'm using a hand-built Ubuntu 2.6.20 kernel from recent sources (Feisty
> Fawn, patched with driver for my HighPoint RocketRaid 2300) with IVTV
> 0.9.1.
>
Then you have the LNA on by default which is weird as with the LNA on
you should not have one tuner with snow and the other without.

John


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