Hi,
I hope I untersand your problem correctly.
The K2 unlike the K3 need a keying interface beetwen the computer and another K2-key port. With the CAT connexion alone, you cannot key the K2. Have a look to your K2 manual. You may try to use the KY command (see E L E C R A F T K I O 2 P R O G R A M M E R ' S R E F E R E N C E), but it is a long way !

73
Luc F6HJO



Le 19/12/2025 à 17:03, Dave Sublette via Elecraft a écrit :
I use my K2 with a Mac Mini 64 bit ARM compatible computer.  I run the
MacLoggerDX logging program. The computer interfaces with the K2.  It reads
the frequency and changes modes, etc.  The control seems to be working
except when I want to send CW from the keyboard.  I have varied the RTS/DTR
and PTT options every way I can think of but still cannot get the computer
to send CW through the K2.  If anyone has a similar setup that works,
please let me know.  We can take this off the discussion list if necessary.

Thanks and 73,

Dave, K4TO
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