Topband: Common mode choking of beverages - which side of grounded shack entry panel?

[Bill Conwell]

Sorry if this has been asked and answered previously, but I don’t find it
in a check of the archives.



I’ll soon have an aluminum entry panel in my shack for all entering TX and
RX lines (as well as rotator lines and misc control cables).  The panel is
copper-strapped to ground rods fifteen feet away, and to station ground.



My beverages have common mode chokes near the antennas, followed by 250-500
ft of RG6 coax to the entry panel.  (TX antennas are also choked, near
their feedpoints.)



If I were to add further common mode choking at the shack end of the
beverage coaxes, where should such choking best be applied – to the RG6
cables on the outside, or the shack side, of the entry panel?





Tnx,



/Bill, K2PO

Portland, Oregon