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Old 20-Dec-2016, 5:56 AM   #19
jerrymc
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Join Date: Jan 2015
Location: 92336
Posts: 30
I should have changed my headline to read "UHF AND H-VHF."

Interesting to note that in colder weather, KABC and KCAL both begin dropping signals. (Even with the RCA preamp)
KABC is the lowest channel frequency out here at 174~180Mhz and KCAL at 186~192Mhz. KTTV and KCOP are good though...

Well, so much for testing for a couple days....we had a MAJOR wind storm Sunday and the pole loosened and spun a few circles, breaking the coax from the RCA input port...

On a note about signal overload; I did remove the dist. amp in the attic, but I lost some signal on some stations. (pixelation)

A few weeks ago I did a couple antenna direct to one TV test. (No preamp, splitters, etc..)
The channels were good during the day, but again, some would drop in the evening, hence I reinstalled the CM7777.

I opened up the CM7777 tonight, but cannot see anything obvious, except for some sloppy solder work...but I need to check the opposite side of the board with a mag glass because my eyes are bad...

Thanks to all. This is great information!
__________________
HD8200XL and HDB91X with RCA TVPRAMP1R pre-amp aimed at Mt. Wilson (Los Angeles) in Etiwanda area.
CM3410 dist. amp in attic for a 5 room hookup.

Located in foothills behind Mt. Baldy, and experiencing signal loss and pixelation depending on time of day.
Using RCA rotator motor now to tweak.

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