Re: [TowerTalk] Best Balun

[<john@kk9a.com>]

Mounting Nema box baluns to a boom can be easily and securely done if you
make a mounting plate. I use 1/4 thick aluminum and mount the box to the
plate using four 10-32 screws though the box's feet. I notch the aluminum
plate so the drain holes are not obstructed. I use a single stainless steel
U-Bolt to attach the mounting plate to the boom.

John KK9A

To:     towertalk@contesting.com
Subject:        Re: [TowerTalk] Best Balun
From:   Herbert Schoenbohm <herbert.schoenbohm@gmail.com>
Date:   Wed, 26 Nov 2014 21:02:45 -0400

Thanks for all the wonderful suggestions (many off line) for a better balun
than my BN-86's. I just ordered from Force 12 (Chip K7JA) their bead balun
model EB-1 as this is easier for me to install on the boom compared to the
Comtek boxed unit which also looked very good with their specs..

On a related balun question...many years ago before beads were easily
obtained some hams claimed that their solution was to run there coax though
a piece of PVC tubing loaded full of steel wool and then sealed. Just
curious if that idea ever had any real value to try or was this just an
unsupported claim. Somebody must have run tests on this perhaps.


Herb Schoenbohm, KV4FZ

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