[Elecraft] Help, please. K3 and PSK31

[Richard Ferch]

Dave,

You should use the line out connector. The level on this output is not 
affected by the AF gain controls, whereas the level on the headphone 
output depends on the AF gain controls and also on whether or not you 
have headphones plugged into the front panel (since the two are in 
parallel). The line out level is adjusted from the CONFIG:LIN OUT menu 
item (it's a set and forget adjustment). Using the headphone connector 
also disables the speaker, whereas the line out connector does not.

A simple stereo cable should do fine. If you have a sub-receiver and it 
is on, the right channel will carry output from the sub-RX; the left 
channel is always the main RX. Most sound card software defaults to the 
left channel, but almost all software can be configured to use the right 
channel instead, and either by running two instances of a program or 
with software that supports dual channels, you can receive independently 
on both receivers.

If your sound device only has a mono microphone input, you might want to 
check whether the right channel is used to carry a DC voltage, and if it 
is, you would leave the ring disconnected, but otherwise, a straight 
stereo cable should work fine.

73,
Rich VE3KI

G3TJP wrote:
> I'm getting round to trying PSK31 and later maybe some other data modes.
> 
> I want to use either the stereo line out source or the headphones socket on the back \
> panel of the K3, which is getting mighty full of connections these days.
> 
> I could use some advice from the collective HI!
> 
> Should I use a stereo jack with tip active, sleeve ground and ring unconnected, or \
> should ring and tip be paralleled for use with line out? 
> 
> Would I be best using the line out or headphone socket (with configuration \
> speakers+phones=yes)?
> 
> Also, if anyone has experience of using the Tigertronics Signalink USB with the K3 \
> I'd be very interested to have your comments.
>