[Antennas] Receive vs Transmit

[Bryan Fields]

On Sunday 16 February 2003 13:03, DJED1@aol.com wrote:
> I think there are two reasons why receiving with untuned antennas is not as
> much of an issue:  First, as you point out, many older receivers have an
> antenna trimmer which will cancel out at least part of the mismatch between
> antenna and receiver.  Second,  your sensitivity, especially on the lower
> bands, is limited by external noise.  So if I have a "broadband" antenna
> with 10 dB of loss, it will not affect my reception provided the external
> noise is at least 10 dB above receiver noise floor. 

Except if you use a tuned antenna you now have a medium/high Q resonant 
circuit, that will filter some out the out of band noise.  You may notice the 
band quiet down as you bring the antenna into tune, I know I do.

73's
-- 
Bryan Fields, KB9MCI
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