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Old May 12th 06, 03:15 PM posted to rec.radio.amateur.antenna
Cecil Moore
 
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Default 2 Meter Choke Baluns

"Darrell Bellerive" wrote:
There seems to be considerable variation in the design of coiled coax
baluns, with most designers advocating a few turns of coax with a
diameter of 3 to 8 inches.


Well, one sure wouldn't want the circumference to be one wavelength. :-)
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73, Cecil, W5DXP


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Old May 12th 06, 07:51 PM posted to rec.radio.amateur.antenna
Ian White GM3SEK
 
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Default 2 Meter Choke Baluns

Cecil Moore wrote:
"Darrell Bellerive" wrote:
There seems to be considerable variation in the design of coiled coax
baluns, with most designers advocating a few turns of coax with a
diameter of 3 to 8 inches.


Well, one sure wouldn't want the circumference to be one wavelength. :-)


Tie a knot in the coax, and pull tight until the loop inductance
resonates with the capacitance.

Always wondered if that one would work...


--
73 from Ian GM3SEK
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Old May 12th 06, 10:04 PM posted to rec.radio.amateur.antenna
 
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Default 2 Meter Choke Baluns

And for more impedance, put one every odd 1/4 wavelength... it's the
macrame choke!

And then we'll start r.r.a.a. debating the effectiveness of overhand
vs. sheet bend and....

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Old May 13th 06, 06:27 PM posted to rec.radio.amateur.antenna
 
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Default 2 Meter Choke Baluns

If you put 100 FT-43 beads around your head, you're sure to get a
migraine choke headache, I think.

It'll keep the conducted common mode RF off your torso though.

Still have to worry about the radiated.



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