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Old September 16th 08, 06:41 PM posted to rec.radio.amateur.antenna
JB[_3_] JB[_3_] is offline
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First recorded activity by RadioBanter: Apr 2008
Posts: 543
Default Chart of HDTV freqs?

The neat thing about going full digital? You no longer have any idea why
the signal breaks up. PERIOD. The Customer is no longer bothered by
interference of any kind. Either it works or not. If your QSO, Phone Call,
Mayday, Police call for backup, TV signal gets knocked off the air, you
won't have a clue why.

I have experimented with Easy Pal Digi SSTV and DRM it is neat but I can
rarely get the S/N high enough for a complete transfer. Text is more
reliable, but it is hard for me to put my faith in a signal that sounds
clean and strong to my ear but with no result. I could have passed several
photos on MMSSTV with half the S/N and knew well what they were. Sometimes
getting the information through is more important than waiting for
conditions to get better to get it perfect.

I don't mind being a network admin. but being a radio op isn't quite dead
yet.

picture breaks up and quits. At other times the same station will give a
solid 3 or 4 bars.This happens on all channels. Perhaps atmospheric
movement? Lots of dust here in the desert. Any other ideas?


Yes, ducting and "ghosting" of the signal(s) due to reflections, etc.--I
can see these as being a REAL problem. From your description(s), sounds
like "they" just took the exact-same
technology/encoding/decoding-schemes and implemented them onto broadcast