Hi Andy,
Take a look at Jim's Choke Cookbook at:
http://k9yc.com/2018Cookbook.pdf
It is the reference for me... Look at some of his other publications as
well... He covers most everything regarding chokes.
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources
On 1/21/20 7:28 AM, Andy KU7T wrote:
Hi,
these may dumb questions (I am a choke newbee, but working myself up to the
skillset to build my own to specific needs)...
A recommended method and material to use is #31 and a #12 THHN pair of wire
(non-twisted). Since these are un-shielded wires, wouldn't this cause
additional RF exposed where we do not need it? Or does the field cancel
because of the closeness of the pair of wires?
I would also have the opportunity to use thinner coax of the right impedance to
make a choke. Why is the THHN wire better than coax?
Thanks and 73
Andy
KU7T
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