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. Options: 1) Use one-third of the Component cable assembly I built a long time ago with nice Canare RCA connectors and L5-CFB coax. (simply cut of one connector and connect the center conductor to the NO terminal and the braid to the C terminal) for a quick and free solution. Kind of stiff with solid center conductor. 2) Use unshielded twisted-pair 2-conductor (or shielded leaving shield disconnected) cable. (Have to buy a an RCA connector.) 3) Use shielded 2-4 conductor mic cable (nice and flexible). I think I have some Canare Star Quad around somewhere (Still have to buy the RCA connector). My question is: *Do I need to worry about shielding this cable?* I've got a ground to pick up the shield in the foot switch, but no place to pick up a chassis ground cleanly in the back of the K3s... I could terminate the shield to the RCA housing at the radio end, but that's going to the connector board... Alternatively, I could pull the shield out of the cable near the RCA cable plug at sufficient length to pick up the chassis ground screw on the back of the chassis with a ring terminal (not clean, have to buy RCA connector and MAYBE the cable if I can't find my spare Canare Star Quad mic cable). I'm going to use the re-purposed component cable described above for now, but I don't really want to EVER have to worry about this control cable giving me issues. I know it's a small thing, but if I cover all the small things as I go along, it'll be less work to isolate problems if/when they crop up down the line. Jim? Thanks a bunch! -- ______________________ Clay Autery, KG5LKV (318) 518-1389 ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
