Tom writes: > It's just silly to design an audio interface device that > commons the shield of audio lines to multiple pieces of gear > or to the cabinet, but that is how Ham accessories are > usually made.
The transceiver manufacturers generally force that design by using unbalanced audio input/output and tying the cold side to the chassis. The solution would be to use balanced and shielded inputs and outputs. In addition to eliminating the "sneak" path for power supply currents, balanced inputs would provide significant additional immunity against common mode noise and RF. _______________________________________________ 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
