Antenna spread
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How far should the spread distance be between the UHF and VHF antenna? |
Depends on the antennas.
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Winegard YA 1713 and a 91XG
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4 feet if possible, although at 1 foot separation I haven't noticed any signal degredation between the 91XG/YA-1713. YMMV
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2 Attachment(s)
The rule of thumb is to have a separation equal to at least 1/2 wavelength of the lowest frequency channel of the VHF antenna.
Channel 7 is 174 to 180 MHz. 5540/174 = 31.8 inches http://www.tvantenna.com/support/tut...combining.html I think you should be more concerned about Chromstar UHF preamp overload from strong local TV and FM signals than antenna spacing. http://www.tvfool.com/?option=com_wr...8e03cccd493fef |
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Thanks again I appreciate and learn from everything you mentor me on, With that said I have removed the chromstar and put up a 777 I am a little confused on your concern on the chrome star as it is only a UHF preamp and my two closes stations 13 which is 3 miles away and is VHF but it doesn't overload it sits at about 91 Now the station next to it which is UHF 20.1.2.3.4.5 it doesn't over load either sits at about 91 |
It is possible to have partial overload that doesn't show on the strong signals, but will damage the weakest signals.
Which is what I tried to show you here: http://forum.tvfool.com/attachment.p...0&d=1443017834 Half of the channels (the weak ones) are gone; the damage comes up from the bottom which is why the weak signals are damaged first, leaving the strongest ones OK: http://forum.tvfool.com/attachment.p...1&d=1443017849 The 7777 will also overload easily, according to Channel Master: http://www.channelmaster.com/TV_Ante..._p/cm-7777.htm Quote:
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