> K3 <> KUSB <> PC communicating with K3: +10dBV > K3 <> RS232 cable <> KUSB <> PC communicating with K3: +0dBV
I wonder if physical proximity of the USB-serial adapter to the rear of the K3 is the cause of the problem? Maybe a magnetic coupling into the RX?? I'm guessing. 73 Gary ZL2iFB ______________________________________________________________ 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

