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Channel Master CM 7777 Help - Page 2

post #31 of 39
7/20/12 at 5:58pm
You can also use that 3414 as a preamp with a remote power supply. This way you can place the amp at the antenna, and have the power supply inside near the TV to help avoid signal loss. PCT store sells the remote power supply, also Amazon. But it may work for you as a dist amp as well. It is a good amp.
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post #32 of 39
7/20/12 at 6:35pm
Really... didn't know that.

I bought this at Amazon (Link)

Didn't know, so I installed it as a distribution amp... working good so far.
It did come with a power supply and a reverse power splitter thingy. For now I am not using the reverse power splitter thingy.

My cable drop is about 50 feet from the antenna to where this is installed right now. The cable length between TV and antenna will be about 100 to 125 feet.

The power supply is 15V 300mA I believe.

Thoughts?
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post #33 of 39
7/20/12 at 7:52pm
turrmoil,

I'd go with another CM7777 (classic version) preamp and not worry about WATC, unless that's a must have channel. I say that because the preamp may cause freeze ups on that station.

I use a CM7777 preamp to pick up the Cincinnati channels which are to the south while my home is just over 3 miles from the Dayton, Ohio tv towers (you can see them out my back door) which are to the west. The Cincinnati channels come in great with no signal overload at all, but the Dayton channels will occasionally freeze up for a few seconds.

I'm guessing only WATC will have problems with overload due to a CM7777 preamp.
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post #34 of 39
7/20/12 at 8:03pm
Awwwww...
I already bought and installed the 3414...

Guess, I'll look at moving my 3414 to outside and use as a preamp.

Will try that config.
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post #35 of 39
7/20/12 at 9:30pm
Quote:
Originally Posted by tim58hsv View Post

turrmoil,
I'd go with another CM7777 (classic version) preamp and not worry about WATC, unless that's a must have channel. I say that because the preamp may cause freeze ups on that station.
I use a CM7777 preamp to pick up the Cincinnati channels which are to the south while my home is just over 3 miles from the Dayton, Ohio tv towers (you can see them out my back door) which are to the west. The Cincinnati channels come in great with no signal overload at all, but the Dayton channels will occasionally freeze up for a few seconds.
I'm guessing only WATC will have problems with overload due to a CM7777 preamp.
The classic version of the CM7777 was highly regarded but regretably may no longer be available. Most online vendors are now shipping the new version. But the RCA branded preamp from Audiovox also has dual inputs, and is actually getting good reviews. It advertises extremely low noise, but does not specify. But it has been priced at $23-$25 with free shipping, so may be worth a shot.. And Antennacraft also now makes 2 dual input preamps, so those may also be worthy of consideration as well.
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post #36 of 39
7/21/12 at 4:38am
You will find that the 4228 is MORE directional and will be even LESS likely to receive the two stations you inquired about.
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post #37 of 39
7/21/12 at 7:07am
Since I'm now stuck with 3414, I'll keep that.
Can't go beserk with the amplifiers.

I care little about WATC but do want WXIA / NBC / 18.1 / 18.2 / 18.3

I get the 18 series off and on. C2 seems to be a good antenna for what I want. I'll try to place it a little higher like another 5 feet or so and see how it performs.

But for now no more spending...smile.gif.

Thanks folks this was a great learning experience for me.
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post #38 of 39
7/21/12 at 7:40am
Quote:
Originally Posted by turrmoil View Post

Since I'm now stuck with 3414, I'll keep that.
The 3414 is an excellent fit for your situation IMO. It is far better than any pre-amp when dealing with a combination of super strong & weak signals.

I would try different heights/locations with the present antenna to see if WUVG improves. Even a few inches can make a world of difference with UHF.
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post #39 of 39
7/21/12 at 9:39am
Quote:
Originally Posted by turrmoil View Post

Since I'm now stuck with 3414, I'll keep that.
Can't go beserk with the amplifiers.
I care little about WATC but do want WXIA / NBC / 18.1 / 18.2 / 18.3
I get the 18 series off and on. C2 seems to be a good antenna for what I want. I'll try to place it a little higher like another 5 feet or so and see how it performs.
But for now no more spending...smile.gif.
Thanks folks this was a great learning experience for me.

If you're able to get a VHF antenna capable of getting WXIA, you'll likely get GPB from WGTV on 8.1, which will make 18.1 unnecessary.

21.6 and 21.7 are artifacts of the UpdateTV service, carried on WPBA, and can be safely deleted.

- Trip
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