[Elecraft] K3 - PSK program?

[Dave G4AON]

Tony I use Ham Radio Deluxe and it's DM780 program which is part of the
download package, it does multiple modes and integrates well to the K3.
Keying is via the serial cable without needing to set anything in the K3
menu... Simon, the author of HRD, has a K3 and knows a thing or two
about integrating to it. There's a new log book feature out soon as part
of HRD, although I find the current log OK for my needs.

Highly recommended and it works remote control too.

73 Dave, G4AON
K3/100 #80
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So, any recommendations for a PSK program that interfaces well with the K3?
I am not using any of the interface boxes as so far things seem to work fine
with a direct connection between the K3 and my PC.

Tnx for any feedback.
N2TK, Tony