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Old May 12th 07, 05:25 PM posted to rec.radio.amateur.antenna
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First recorded activity by RadioBanter: Apr 2007
Posts: 46
Default Phase Shift through a 75m Texas Bugcatcher Coil

what is average net current? is there a peak net current?

On May 12, 7:17 am, Cecil Moore wrote:
Yuri Blanarovich wrote:
Which brings me back to my question: How important is the Q and low
resistance of the coil and stinger?


As the loading coil is moved from base-loading to
top-loading, the average net current through the coil
decreases (assuming no top hat loading). The importance
of coil Q is related to how much net average current
is flowing through the coil.

For instance, the net average current through a
hamstick coil is enough to burn your hand even
after the power has been shut off.

I've always had it in the back of my mind to
install a 16'x6' piece of hardware cloth at
12.5 ft above ground above my GMC pickup,
supported by fiberglass poles. I would mount
the loading coil about a foot below the top
hat. I'll bet that would win any 75m mobile
antenna shootout.
--
73, Cecil http://www.w5dxp.com



 
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