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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 |
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