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Old 5-Sep-2012, 3:39 AM   #4
Junior Member
Join Date: Sep 2012
Posts: 8
Originally Posted by rabbit73 View Post
Welcome, quicksilvr:

You have a very unusual situation. KQTV, which is on real VHF channel 7, is extremely strong, which is why it is highlighted in red. It is strong enough to cause overload even without a preamp.

The rest of your channels of interest below it are all UHF channels.

I suggest a high gain UHF antenna aimed at about 163 degrees magnetic with its coax going to the UHF port of a UVSJ. This will pass the UHF signals with very little loss (about 0.5 dB) and attenuate the very strong KQTV signal. If the KQTV signal is attenuated too much for reception you could always add a simple VHF antenna for CH7 with an attenuator connected to the VHF port of the UVSJ.

An alternative with your present antenna would be 2 UVSJs, with the coax between the UHF ports direct, and the coax between the VHF ports having an attenuator.
                          / UHF > coax >  UVSJ UHF \
antenna > UVSJ 1 common >                            UVSJ 2 common > amp or TV
                          \ VHF > atten > UVSJ VHF /
The UHF loss would then be about 1 dB.

If you need a preamp for the weaker channels (like NBC), the UVSJ should be between the antenna and the preamp input.

Some of the other forum members might suggest a better solution.

What model is the AntennaCraft antenna, HBU22? If so, I'm not certain it has enough gain for consistent reception of your weakest UHF channels.
Thank you. Yes, the antenna I was looking at is the HBU22. Which I see now, would be barely enough to reach my weakest UHF stations. Do you have any experience with the DB4e mentioned below?

I'm curious why the DB4e would not require the use of a UVSJ, but other antenna's would. I do have a little indoor RCA antenna that picks up KQTV right's the only antenna I've ever used.

Originally Posted by teleview View Post
The following is a Teleview - recommendation for digital broadcast Tv reception.

KQTV is a strong signal , I recommend install a Antennas Direct DB4e UHF antenna (no amplifiers) to receive the UHF stations and the Weak KSHB-TV UHF channel 42 NBC.

The DB4e UHF antenna will receive the channel 7 signal that is very strong and act to attenuate the channel 7 signal strength.

For 1 Tv connected use no splitter.

For 2 Tv's connected use a common simple 2 way splitter.

For 3 Tv's connected use a common simple 3 way splitter.

For 4 Tv's connected use a common simple 4 way splitter.

No requirement for UVSJ's and second antennas and such.

Aim the DB4e at about 175 degree magnetic compass direction.

Here is how to aim antennas ,

Here are some above the roof antenna mounts , , , ,

Buy the ronard antenna mounts at solidsignal by typing the word ronard in the solidsignal search box.

Here are some places to by antennas and etc. , ,

As always , trees and tree leaves do a real fine job of reducing or blocking Tv reception and so do buildings and other obstructions.

It is best install the antenna at a location where there is the least amount to no amount of trees and obstructions in the directions of reception.

The Tv/s Must Channel Scan for the Digital Broadcast Tv Channels , sometimes named the 'Air Channels' or 'Antenna Channels' in the Tv setup menu because the Tv transmissions travel through the air from the transmitting antenna to the receiving antenna.

DO NOT channel scan for cable tv channels.

Thank you. I might very well go this route and try the DB4e.

How big is it? I didn't see any measurements....
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