At 03:23 PM 2008-11-20, Rob Atkinson k5uj wrote:
>Frank, Thanks; I get it now.
>
>>A 43 foot vertical is 5/8 wavelength on 20 meters. With
>>appropriate radial and
>>matching systems it can be an excellent antenna on 80 through 20
>>meters, and a
>>fairly good antenna on 160 and 17 meters.
>>
>>73 Frank W3LPL
Perhaps there is a question of semantics to say that a 0.08
wavelength vertical, which has about a 2.5 ohm radiation resistance,
qualifies as a "fairly good" antenna on 160m?
With a 5 ohm ground system, which is probably better than the average
ham will install (something like 30-40 quarter-wave radials,
depending on local ground parameters), 2/3rds of the transmitter
power will be lost in the ground system (-4.8 dB).
It sounds like Frank wants less competition and QRM in the next 160m
contest. ;-)
73, Terry N6RY
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