[TowerTalk] Reverse Fed Towers

Roger (K8RI) on TT K8RI-on-TowerTalk at tm.net
Wed Dec 16 22:35:09 EST 2015


All my coax runs come in underground to both shacks.  On 75 I had a 
severe case of "RF in the shack" !  At 1000W most of the LEDs in the 
shacks would light. At the legal limit, they were bright. Common mode 
chokes eliminated that problem.


Roger  (K8RI)

On 12/16/2015 11:48 AM, Jim Brown wrote:
> On Wed,12/16/2015 4:16 AM, Chuck Dietz wrote:
>> To avoid RF in the shack, bury the coax/hardline.
> Good engineering practice is to accomplish this with a suitable 
> ferrite common mode choke at the feedpoint.
> 73, Jim K9YC
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Roger (K8RI)

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