[Elecraft] Foot Switch wiring question...

Don Wilhelm w3fpr at embarqmail.com
Sat Mar 12 17:09:13 EST 2016


Clay,

Use twisted pair wire between the switch and the RCA Plug.  The tighter 
the twist the better.
If you use that, there is no need for shielding.
If you do use a shield, connect it to the outside of the enclosure of 
the K3S (the RCA jack is grounded, but not to the outside of the enclosure).

73,
Don W3FPR

On 3/12/2016 4:46 PM, Clay Autery wrote:
> Hooking up a Linemaster Clipper Model No. 632-S to my K3s rear PTT RCA jack.
>
> Obviously, the RCA is 2-conductor unbalanced and there is no issue about
> which terminals to use on the foot switch for normally open switching.
>
> BUT, I want to make sure the foot switch cable is never an issue for RFI
> in or out.
>
>



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