On Aug 21, 6:46 am, Doug Smith W9WI wrote:
On Mon, 20 Aug 2007 10:45:51 -0700, American Insurgent wrote:
I'm using an HDTV antenna made by Terk, which gets both VHF and UHF
HD. It has a scary looking UHF antenna, then two rabbit ears for VHF.
When assembled, and with the whips down, it looks like the number 7.
There's a Philips HD antenna that has just the UHF element. For a
while, Radio Shack was selling an HD antenna that had two loops
mounted parallel to the table surface, unlike most antennas where the
loop is perpendicular. I have no idea if that was a UHF only antenna.

There's a Zenith antenna out there that's designed to work only on UHF but
people have found it's OK for channels 7-13 as well. Channels 2-6 are a
lost cause on that antenna, but there are very few DTV stations planning
on using those channels. (you should check before buying one though, and
make sure your city isn't one of the exceptions!)

In theory, the old UHF loops would always have worked better when bent
parallel to the table surface. All TV stations' signals have a
horizontally-polarized component - almost none (especially on UHF) have a
vertical component.

Experts are finding that the old-fashioned "bow-tie" antennas (with the
flat screen behind them) are the most effective DTV antennas. In theory
they're only good for UHF but people are reporting decent results on
channels 7-13 as well.

This HDTV Antenna-Rotor Combo
Claims to have Coveage of Channels 2-79
HDTV ANTENNA = http://cgi.ebay.com/_W0QQitemZ260150283040
A-Neutronics, Inc. Model# AV-891 - Specifications*
· Frequency Range: 40~860MHz
· TV CHANNELS: 2-79
· Antenna Height: ~21" width: ~16"
· Receiving: HDTV/UHF/VHF/FM
· Range: up to 50 Miles
(Estimated range, based on reception over flat and open terrain)
· CONNECTOR: 75 ohm "F"
· GAIN: VHF:32~34dB; UHF:34~36dB
· NOISE FIGU 7dB
· Power Supply: input AC110V 60Hz
· Turning Degree: ~360

This HDTV Antenna-Rotor Combo also claims
http://cgi.ebay.com/_W0QQitemZ250155800238
Frequency : 45 - 860 MHz
Channels : VHF 2-13 UHF 21-69

NOTE - Both are Amplified with a Rotor

While the Non-Amplifier and Non-Rotor
4-Bay Bow-Tie Antennas are only rated for UHF
http://cgi.ebay.com/_W0QQitemZ260148015644
· Frequency Range : 470~862MHz
· TV CHANNELS : 14-69
-and- this 2-Bay Bow-Tie Antenna covers
http://cgi.ebay.com/_W0QQitemZ230160696625
only UHF Channels 14-69

~ RHF
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~ RHF