[mythtv-users] Prebuffering pause
Brian Wood
beww at beww.org
Sat Feb 7 19:26:04 UTC 2009
On Saturday 07 February 2009 11:46:55 Yan Seiner wrote:
> I got one of those new gen HD HomeRuns. Serial 1016*. I have 2
> antennas, directional, at 90 deg to each other. Each antenna is run
> directly to one tuner.
>
> I'm having problems with one station. It comes in at iether 93 or 96%,
> depending on the antenna. That one station is getting horrible
> reception. The stations with 58% signal strength are doing great. The
> station I'm having trouble with came in perfectly with the PCHDTV-3000
> card. Here's a log file of tuning that station. Why would it affect
> just one station, and one with the strongest signal at that? No
> amplifiers at all; just a straight shot from a rooftop antenna to the HDHR.
If that signal strength really does represent RF level (and not the BER) it
might be that you have a strong signal close in frequency. An example would
be channel 6 and a strong local FM station, or channel 7 and a strong local
airport beacon or other high-band VHF source (probably not two-way radio, as
those tend to be intermittent, not constant).
It would take a spectrum analyzer to really know what's going on, but the raw
RF energy does not always represent the strength of the desired station, it's
a combination fo all the energy on that frequency and nearby.
What happens if you attenuate the signal so the problem station gives you a
58% level? That would tell you if the problem is purely signal strength or
something else.
--
beww
beww at beww.org
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