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Old August 27th 07, 03:24 PM posted to rec.radio.amateur.antenna
Cecil Moore[_2_] Cecil Moore[_2_] is offline
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First recorded activity by RadioBanter: Mar 2007
Posts: 3,521
Default LQQKing for 160m

Jimmie D wrote:
What one be the input impedance of a 10ft loaded mobile antenna on 160M?!.
Gotta be less than 1 ohm.


The input impedance cannot be less than the ground
losses which are usually in the ballpark of 10 ohms.
My ARRL Antenna Book estimates the feedpoint
impedance at ~34 ohms with a radiation resistance
of ~0.2 ohms for an efficiency of ~0.6% using a
coil with a Q of 300 which is no doubt higher than
any Hustler coil. I hope John Doe likes 160m QRP -
100 watts in with less than 1/2 watt radiated.
--
73, Cecil http://www.w5dxp.com