OTA digital tuner oddity
John Scudder
my Dish Network HD receivers. Whenever I tune to this one channel (11),
I get a 10 to 12 second 'Lost Signal' screen before the station comes in.
Once the station appears, it remains steady and locked in a about 70%.
If I switch to another station and then right back to 11, again I have
that 10 to 12 seconds of 'Lost Signal'. If I switch from 11.1 to 11.2
or 11.3, there is no 'Lost Signal' message. It only happens when
switching from 11 to any other OTA or satellite station.
What could be causing this? Something with the signal or something with
the tuner?
John
Andy from Dover
"John Scudder" <jscu...@kanasatka.org> wrote in message
news:he4pql$6h4$1...@news.eternal-september.org...
aquire the signal than the other OTAs for reasons ranging from a weak signal
to high multipath. Switching among subchannels isn't a problem as the tuner
is getting them from the single ATSC channel.
I'd say it's the signal more than the tuner, but another tuner may tune it
in quicker. All IMHO, YMMV.
robinlos
I agree with Andy, 11 is probably your "difficult" station. That it
comes in after a while means nothing is probably wrong with anything,
and the only way to stop the delay would be to have a specific antenna
for that station.
R. Mark Clayton
"John Scudder" <jscu...@kanasatka.org> wrote in message
news:he4pql$6h4$1...@news.eternal-september.org...
Switching between Mpeg2 and Mpeg4?
As the latter will not have had an input stream and will probably take
longer to acquire...
Guru
"R. Mark Clayton" <nospam...@btinternet.com> wrote in message
news:nv2dnWI6quSZMJvW...@bt.com...
If you are using the Dish supplied OTA "antenna", it is tuned for UHF. Are
there any other VHF frequency digital channels in your area? If not...then
it is definitely a combination of the VHF freq, antenna and receiver.
Stations who returned to their original VHF frequencies are having coverage
problems. We have a ch-11 in our market, and they asked the FCC to
authorize about 50% more power. They got the approval, now they just need @
$500K to buy a new final amplifier for the transmitter.
Oh...the reason stations wanted to go back to VHF freq is that they were
supposed to require about 1/2 the electricity (and transmitting power) as
UHF freq; however, we also have a ch-8 and 13 in our area...and they are all
getting phone calls from frustrated viewers.
John Scudder
Multipath signal is most likely the answer. When Channel 11 was analog
it was almost unwatchable due to ghosting. After the digital switch,
Channel 11 reverted to VHF 11. I am receiving it now with a single
Channel 11 VHF yagi with a CM preamp. So I guess this is as good as it
will get. Thanks for confirming the problem.
robinlos
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I seems to me that if multipath is the culprit, one might moderate the
problem some by removing the pre-amp from the line to the reciever..A
steady minimum signal would be preferable to a strong signal with a
lot of babies clinging to it, at least as far as digital reception
goes.
John Scudder
Hmmm...interesting. I'll try it and let you know.
John Scudder
No good, without the preamp I get nothing. Thanks for the suggestion anyway.
John
robinlos
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Sorry. That sort of suggests that channel 11 may be near the "cliff",
and your problem is getting a solid fix on the signal. I get a
noticeable pause at times on stations that I know are at maximun
distance to recieve. However, the only VHF station I can recieve I
often can't, and I think multipath is one of the problems, maybe not
the only one. On balance, if a pause is all that's wrong, you may be
doing alright for the conditions. I won't be shy about suggesting
something else, though.. Corner reflectors behind your yagi might
help. That might be more trouble than its worth, though. Good luck.