Hi Jim,
This is a bleeder question, and my chokes are in boxes that are
plastic... I use a pair of FT240/31s. At no more than 500 watts, into
a monopole with a decent radial system... I will be adding the bleeder
to the choke box, at the feedpoint. Thanks for the tips on heat!
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist, RFI
ARRL Asst. Director, NW Division, Technical Resources
On 9/18/21 11:22 AM, Jim Brown wrote:
On 9/18/2021 4:35 AM, Dave wrote:
I will build a small chassis and put them on inside, with a pair of
SO-239s.
I've deleted the original post in this thread. Did it start with a choke
with the bleed included? Several thoughts. First, the first choke in any
system should be at the antenna feedpoint, not in the shack. Second, for
reasons of dissipation, chokes should not be enclosed, or if they are
enclosed, must be provided with sufficient ventilation. There's an
addition to the Cookbook from NA6O, who did some serious lab work on
that, and added it to chokes for the N6RO contesting station.
Third, if chokes are inside a conductive box with connectors mounted to
it, the box will short around the choke.
73, Jim K9YC
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