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Old October 29th 08, 12:24 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 Carolina Windom without a balun: go figure

jawod wrote:
I am clueless as to why the CW failed to work AT ALL when USING a balun.
The internals of the balun look fine. Any thoughts?


1. Baluns are designed for a narrow range of *resistive*
impedances, e.g. 50/200 ohms (plus or minus). Over what
range of impedances are you asking your balun to function
properly? Baluns don't handle massive reactance very well.

2. A misapplication example: 300 ohm twinlead with a 10:1
SWR can take the impedance seen by the balun down to 30 ohms.
Then the 4:1 balun tries to take 30 ohms down to 7.5 ohms.
That's a lossy situation for a tuner.
--
73, Cecil http://www.w5dxp.com