Topband: Beverage question...

[Bill Tippett]

W8JI:

 >The feedpoint inside the box is already isolated with
over many thousands of ohms impedance.
You would go broke doing that with beads.

 >If you want to improve isolation further, ground the
feedline some distance away with a grounding block and
ground rod. Any added impedance near the box is a wasted
effort.


K5NA:

 >I saw this post and got excited about buying some of
the beads.  Especially since they seemed so affordable.


         Seems like this was mentioned recently, but
another alternative to a ferrite sleeve is an
isolated 1:1 transformer (e.g. 3 turns on both
sides of one BN-73-202 binocular core) and ground
only one side to a ground rod.  One core is much
less expensive than 100 of the FB-73-2401 ($0.60
vs $15.00).

                                         73,  Bill  W4ZV