teleview

Yes the CM7777 has 30dB of gain and that is to much.

A CM7778 has 16 dB of gain and that is better.

However the Winegard HDP-269 preamp has 12dB of gain and is also designed to resist overload.

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Yes all parts of the amplifier can be installed before the splitter , the preamp , power injector , power supply.

It the power supply and power injector is after the splitter , then one or more of the outputs of the splitter needs to be 'power passing' through the output to the input so the preamp unit can receive power.

The , power supply , power injector , preamp , is connected to a power passing port.

The preamp can not operate without power.

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Attics and the inside of buildings Are Not a reception friendly environment and Never Will Be a reception friendly environment.

Multi-path/reflections signals bouncing all around can be too many signals for the tuners computer to correct.

And attics and inside of buildings , absorb and block Tv reception.

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To improve reception and happiness.

Install the HBU33 antenna above the roof in such a manner that the roof and house are not blocking reception to the , North East and West North.

Most likely , a HDP-269 preamplifier will not be required with antenna above the roof.

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