[opendtv] Re: CH 6 Gets FCC STA to increase power

Tom Barry wrote:
 
> Nobody seems to be blaming anything at all on
> multipath.   It's as if everyone forgot about it.
> Did it really get solved by new receivers? Or is
> all poor reception just being blamed on the
> sometimes obvious low power problems?
 
I don't know if multipath can be a major issue for the VHF problems, given that 
things were working okay in UHF and the towers haven't changed. I suppose it 
could be an issue in the different freq band, but wouldn't you expect UHF to be 
more susceptible?
 
In my case, I paid special attention to that, when Ch 7 and Ch 9 were still 
transmitting analog in VHF. Both showed only lagging ghost, which is good, and 
the most distant ghost was ~21 usec (about 1/3 of the screen width to the right 
of the main signal). So that was a hopeful sign.
 
Oddly enough, it was Ch 9 that had the strongest ghost, yet that one comes in 
solid in digital. Ch 7 had the nicer analog picture, although it got 
progressively worse as June 12 drew nearer. Signal strength seemed to drop, and 
there was RF noise in the picture too. And it's still not solved for me 
(although I haven't done anything to help, either, and at least downstairs, the 
antenna is hardly ideally located!).
 
Could be that there are mites and ants at play here too, but the elephant in 
the room is the low power levels. Cliff's oscilloscope outputs make that 
obvious, in his case.
 
Bert
 
_________________________________________________________________
Microsoft brings you a new way to search the web.  Try  Bing™ now
http://www.bing.com?form=MFEHPG&publ=WLHMTAG&crea=TEXT_MFEHPG_Core_tagline_try 
bing_1x1 
 
----------------------------------------------------------------------
You can UNSUBSCRIBE from the OpenDTV list in two ways:

- Using the UNSUBSCRIBE command in your user configuration settings at 
FreeLists.org 

- By sending a message to: opendtv-request@xxxxxxxxxxxxx with the word 
unsubscribe in the subject line.

Other related posts: