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Post 14 made on Sunday October 25, 2020 at 16:16
New Member
October 2020
I want only one cable coming up into the operating area - the coaxial antenna connection - it goes through a well designed and efficient RF current choke. The RF was coming up to the operating area when I had the controller upstairs and sent 8 12vdc wires down to the relays. My experience with RF shielding has been that it is effective only when the shielded wires had a good ground rod close by. Separating the operating position by at least 8 feet from the RF field around the antenna feedline wiring and relay board has always been effective during the 15 years I've used this antenna system. Things only got hairy when I decided to move the station upstairs and also had to switch from parallel port relay control to USB serial port control due to Microsoft dropping support for discrete parallel port protocols. Fortunately a 100 watt RF field dissipates quickly with separation. I don't believe there wiil be any interference problems with IR and RF. Thanks Buzz.
Frank Brady W0ECS

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