Hi list, Bit of a strange issue here with serial comms between the PC and the K3. First a bit of description about my set up: I use an external noise sense antenna in addition to the main station antenna to cancel out some nasty local electrical noise with a Timewave ANC-4 noise phasing unit. This is connected to the RX out / RX in jacks on the transverter interface (this is a great feature).
The issue I have is this: when I use a USB serial adapter I get no additional noise issues when the computer is polling the rig. However, my computer has a serial port which I would rather use. I made up a cable with pins 2, 3, 4, 5, and 6 straight through and the cable shield soldered to the shell of the d-type that connects to the K3. When I use this cable the radio picks up bursts of noise from the noise sense antenna (which is not good if I'm using it to null out other local noise). This is obviously radiation from the serial cable but I'm at a loss as to why (incidentally also tried some ferrites on the cable and they made no difference). Any suggestions? Thanks Paul M1PAF -- View this message in context: http://www.nabble.com/K3-serial-cable-shielding---noise-question-tp16175101p16175101.html Sent from the Elecraft mailing list archive at Nabble.com. _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
