User guide
MS-DMT Guide v1.04
Released 05-30-2014
120
APPENDIX F: CAT RADIO SUPPORT
The list of supported computer controlled HF SSB transceivers and receivers herein is current as
of this build. Additional make/model radios equipments are always being added. Should your
make/model radio not be listed, please provide the any documentation you may have for
computer control programming.
All CAT modes operation listed below require that the CAT COM port be set correctly and not 0.
PTT TYPE
COMMENTS
CAT ONLY
Sends CAT PTT ON and CAT PTT OFF
CAT&RS232
As above plus either DTR or RTS as below.
RS232
Asserts and de-asserts either the DTR or RTS lines for PTT on
the CAT port predicated on the DTR/RTS box being checked
or not.
EXTERNAL
None of the above PTT methods are used which allows for
the use of an external hardware PTT method based on the
modem audio out from the PCSDM such as with VOX PTT
based external units.
CAT PTT = Main SSB or only radio CAT PTT ON and OFF command sent and no other others if CAT
ONLY or CAT&RS232 is selected.
CAT DATA = Dedicated Data Port CAT PTT ON and OFF command sent if one exists for the RADIO
MODEL and no other CAT PTT command if CAT ONLY or CAT&RS232 is selected.
CAT D/V = Radio DATA mode selection CAT command sent prior to PTT ON and is taken out of
DATA mode after PTT OFF in support of Data/Voice SSB USB operation. Either the radios
only CAT PTT command or its DATA port CAT PTT commands are sent. The DATA










