At 5/12/2005 12:37 PM, you wrote:
>Yes. Many repeater receivers are simply not well enough shielded to
>keep the TX from leaking into the RX box. Even some commercial
>repeaters will suffer desense if 100% shielded feedline is not used. I
>have seen serious desense occur when a dual-band (2m/440) antenna is
>used on a repeater, due to the uneven gain versus frequency response of
>many such antennas.
A narrowband antenna by itself will not generate desense. Your problem was
probably due to corrosion, dielectric breakdown, or some other cause
related to poor construction/materials in the amateur grade antenna.
I would like to know what model antenna this was though, since I have yet
to see any desense problems with my Comet antennas.
Bob NO6B
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