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Discussion Starter · #1 ·
I want to combine a CM 7777 pre-amp with a CM 4228 UHF and Permacolor VHF antennas. My questions are:


1) Has anyone done this and had good success?

2) Do I need to change any of the factory settings on the CM 7777 pre-amp before installing it?

 

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I have a CM7777 amp.

I think you have to open up the box to change on one of

the two switches. The CM7777 comes with the default

of combined UHF/VHF on the primary F-connector. So

you will need to change the switch to separate UHF

and VHF connector to support your setup.


Some people believes totally on the CM777x that it

improves the signal. I believe that is true, but I

did not seen any improvement on top of my $30 indoor

cable amp from Radio Shack. And I am still using my

RS amp currently. Only to have my CM7777 sitting on

the shelf.


Hope this helps.
 

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I use the CM 7777 with a CM Parascope for distant UHF as well as a cut-yagi (VHF 10-13) for distant VHF, and have a 250 ft cable run. The CM 7777 works better than the Winegard or Titan equivalents...the lower noise spec is what's helping me, as I have a low-power 70 mile distant signal to pick-up while I'm 9 miles from the Boston towers.

For others, the Winegard wins because its a little stronger.


Bottom line: There are times when you really have both pluck and luck. (Check out the early-adopter trials and tribulations we've had over the last couple of years on this forum in the Boston Tower threads).
 
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