[Elecraft] K3 sound recording

[Richard Ferch]

Unless I am missing something in your description, the only hardware you
need is a single stereo patch cable (one with 3.5 mm stereo plugs on both
ends) from the stereo Line Out jack on the K3 to the stereo Line In jack on
a standard 2-channel sound card. If your sound card has only a mono input,
use a different sound card (one with stereo inputs). In the Windows setup
for the sound card, make sure it is configured for two channels.

The main RX audio will be recorded in the left channel and the subRX audio
will be recorded in the right channel of the stereo recording.
Transmit monitor audio will appear in both channels. On playback through
headphones, you will hear the main RX in your left ear and the subRX in
your right ear.

For dual-RX RTTY with the identical hardware, run two separate copies of
your RTTY program(s), one copy configured to use the left channel of the
sound card (for the main RX) and the other copy configured to use the right
channel of the same sound card (for the subRX).

73,
Rich VE3KI


K7HP wrote:

I [...] have not figured a way to record the SUB rx output at same time
unless I made some sort of external circuit xfmr or resistors to feed LINE
OUT tip and ring to a single input Maybe there is something I am missing ?
This would also allow decoding RTTY from either MAIN or SUB rx . ???