[Elecraft] K3-S - CW Keying for Contests

[Bob McGraw K4TAX]

Regarding this point, to me the easiest way to run Data modes is to 
simply use the USB connection between the radio K3S and the computer USB 
port.  No box, no USB to Serial adapter or other cables required.  I use 
FLDIGI and it handles CAT control of the radio and data/audio.  Set the 
CONFIG menu RS232 to USB and not RS-232 which is the default as I 
recall.  No cable swapping when changing modes, SSB, CW or digital.

73
Bob, K4TAX



On 1/27/2016 1:50 PM, Rick Tavan wrote:
>    - Data Modes: The quickest way to get here is to connect a pair of 3.5mm
>     phone cables between an external sound card and the K3 Line In and Line Out
>     connectors. Run AFSK or PSK with appropriate software. Many prefer FSK
>     which requires a cable from a serial port (or carefully chosen
>     USB-to-Serial adapter) to the FSK line on the K3 ACC connector. You can
>     also use a Signalink or other multi-function interface box, but it's not
>     required and won't be any simpler. It might save some cable swapping when
>     changing between voice and data modes, depending on the box and how you set
>     things up.