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Old September 2nd 10, 02:20 AM posted to rec.radio.amateur.antenna
John Smith John Smith is offline
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First recorded activity by RadioBanter: Nov 2006
Posts: 2,915
Default Whip antennas with coils

On 9/1/2010 11:35 AM, Cecil Moore wrote:

...
When I vary the length of my ladder-line to obtain system resonance, I
have to be satisfied with purely resistive impedances between 35 ohms
and 85 ohms. I cannot achieve a perfect 50 ohms on all HF bands with
my matching method. That would require the addition of an actual N:1
transformer which is certainly possible but probably not worth the
effort. Since 35-85 ohms is perfectly acceptable to my SC-500 amp, I
don't need a high-power tuner. And since the SC-500 is spec'ed to
handle an SWR of 6:1, I doubt that an 35-85 ohm load makes it
"unhappy". If my SC-500 has ever been "unhappy", I failed to observe
that "unhappiness" but maybe I am just oblivious to such?
--
73, Cecil, w5dxp.com


No, I got you. Soon as you stepped though the logic, the match became
quite clear as a "third leg" ... glad you have a "happy amp" ... but if
the amp goes overboard, escalates its' state of happiness and goes into
the "gay zone", DUMP IT at the nearest swap! stoopid grin

Regards,
JS