[Elecraft] KAT500 serial cable

[Jim Brown]

On 1/19/2014 1:50 PM, Stan Gibbs, KR7C wrote:
> The KX3 schematic shows the following:
>
> RxD = tip
> TxD = ring
> GND = sleeve

My computers have serial ports, but the cable from Elecraft was USB. I 
made myself a serial cable for my KAT500 from a hi-fi cable with a 3.5mm 
TRS plug on one end, split out to a pair of RCA plugs on the other. I 
cut off the RCAs and soldered the cable to a DB9 connector.  Works fine. 
I got the pin-out from the KAT500 manual. I suspect it's the same as for 
the KX3.

73, Jim K9YC