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Old March 21st 06, 09:35 PM posted to rec.radio.amateur.antenna
Richard Clark
 
Posts: n/a
Default Dual rhombic antenna

On 21 Mar 2006 13:23:26 -0800, wrote:

The claims
for
this antenna seem streached abit, they claim 26dB gain from just wire
and a few resistors
and claim its 435mhz design can work up to 890mhz, theres even a quad
rhombic shown
also. Sounds to good to be true, so i wandering if anyone has had any
experience with
actually building & using one of these antennas. I would like to build
some kind of high gain recieve
only antenna to see if its possible to get a decent signal from some
of the ATV repeaters.


Hi OM,

It's as good as any other.... Good being highly qualified, especially
as the construction details are so shy of description here. Barring
those details, rhombics are not a mystery.

If it works on the 440 Band, you can scale it down for the 900 band if
you want it shorter, or just use the instructions provided. How good
it performs remains to be tested. You would have to test anyway to
confirm any antenna claim for gain.

73's
Richard Clark, KB7QHC