Posted by jdemaris on November 14, 2009 at 11:47:40 from (67.142.130.44):
In Reply to: Re: HDTV Antenna posted by buickanddeere on November 14, 2009 at 09:30:24:
Everyone is calling their antennas "HD" now,regardless of size or age. They figure then can't sell them any other way. Some are antennas designed in the 1950s.
As to having a narrow point or field - not overall true. Some antennas yes, and some no. Some bow-tie UHF antennas cover a very wide path like the DB8. On the other hand, some corner-refector Yagis like the 91XG are very narrow. It's always been like that since TV was first invented.
Also, about herringbone that comes from FM interference. I don't think it can happen with a digital signal. You just lose the picture instead of seeing wavy lines like analog.
I agree about the amp. The issue isn't the amp itself. It's that the first amp that "sees" the antenna amplifes the signal and any noise that's there. The further away the amp is from the antenna, the more natural noise that might get amplified. Once the noise-to-signal ratio gets too high, the digital screen goes blank or pixelates.
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