[Elecraft] K3S and RTTY Contesting with N1MM+/MMTTY

[KD3TB]

I am just posting to see what is the experience with others.

 

I have a new K3S radio that uses the new  USB for Sound and Radio Control.
For RTTY contesting I use N1MM+ with the MMTTY interface.  Since the USB
Codec control appears to act differently than a standard serial port, I need
to put the Radio in VOX to key RTTY in N1MM+.  In the past with my older K3
which used a standard Serial port connection, I did not have to do this.  My
K3 Settings are: Tx Data Mode (AFSK A), with PTT-KEY in rts-dtr . No
difference in Safe versus unsafe modes. It also requires the VOX on in FSK
mode too. When I use must MMTTY by itself, I can key with the correct Com
port.  I am sure this has something to do with how N1MM+ interfaces with the
new K3S USB Codec . I have not tried this with other RTTY programs such as
FLdigi, etc.  Everything works fine in CW, DVR Memory keying with the
correct codes, etc. 

 

With Ham Radio Deluxe, since it uses a TC/IP connection between the software
and radio, I do not need to have TX Data in VOX on mode. 

 

I am not sure to eliminate the requirement for VOX on, if it requires an
update in either K3S firmware or how N1MM+ interfaces with the K3S USB Codec
commands. -  Or we just stay with VOX on when contesting.

 

Food for thought and what are others experience with the K3S and N1MM+/MMTTY
in RTTY contesting?

 

Thanks, Irwin - KD3TB