Winegard Company Mobile and HDTV Antennas

OUTSTANDING PRODUCTS!

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OUTSTANDING PRODUCTS!

Postby ENGINEER60 » Tue May 04, 2010 10:22 am

I have a Winegard HD-7080P with a AP-4700 UHF preamp.
Compared to any other brand antenna, the Winegard is HEAVY duty.
And the AP-4700 outperforms the phillips preamp it replaced.
I wouldn't recommend this, but I have my HD-7080P mounted just 12 inches below a 15 watt 440 mhz repeater
transmit antenna.
The phillips preamp blew out from overload but the Winegard handles this TREMENDOUS front end overload
signal with ease!
I have been using the AP-4700 for 2 years now and continue to be impressed with it's overload immunity and
gain performance.

My question is this:

Does the AP-4700 filter these signals below the UHF TV band or is this just due to the tremendous AGC ability of the preamp?
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Re: OUTSTANDING PRODUCTS!

Postby winegard » Wed May 05, 2010 1:19 pm

The AP-4700 has a band pass filter in that separates VHF channels 2-13 one way and UHF channels 14-69 another way on the amplifier circuit. The UHF side is amplified and the VHF side is passed through nonamplified. If you would install the AP-4700 preamplifier on an antenna that is receiving both VHF and UHF the VHF channels will not be amplified and the UHF channels will. If you install the AP-4700 on a UHF only antenna then the antenna would only be sending a UHF signal to the preamplifier to amplify.
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