[TowerTalk] decoupling RF from control lines

ersmar@comcast.net ersmar at comcast.net
Tue Aug 16 08:54:50 EDT 2005


Pete:

     I used 1000 uH chokes in the DC-over-coax feed system for my EWE relay boxes on 160M.  The value was cited in several feed designs I researched at that time.  I bought conformal coated chokes from Ocean State Electronics at http://www.oselectronics.com/ose_p91.htm .  FWIW.

73 de
Gene Smar  AD3F



> I am dealing with some pesky rf in control lines to a remote antenna switch.  
> I'm thinking that an RF choke in series and bypass cap to ground on each line 
> would help.  My question -- are .1 mfd and 100 uh appropriate values for good 
> performance down to 160 meters, or if not, what would be?
> 
> 73, Pete N4ZR
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