[Elecraft] K3 RTTY-CW Help

[Jim Brown]

On Fri,12/26/2014 5:26 PM, Jorge Diez - CX6VM wrote:
> I appreciate information also. I am using K3 + N1MM + MMTTY + Tascam
> soundcard and can RX but I couldn´t transmit on the K3

Hello Jorge,

How do you put the K3 in TX mode?  There are two ways -- VOX or via an 
additional serial port?  I use VOX. To use VOX is pretty easy. Set 
levels according to my applications note.

http://k9yc.com/USB_Interfaces.pdf

Set the K3 for AFSK-A. Set the RTTY tones in MMTTY and the K3 to the 
same frequency, and make sure both are set to 45 baud.

In MMTTY, select your Tascam sound card for both TX and RX. Also, in the 
MMTTY Options Tab, select left or right channel for RX, depending on 
which channel the radio feeds.

Feed audio from the Tascam to the Line Input. Follow instructions in the 
K3 manual to set the Line Input control. The Mic Gain becomes the Line 
Input control in digital modes.

To set the VOX, put MMTTY in TX mode (send anything) and adjust the VOX 
gain until the K3 goes into TX.

This is not exactly step by step, but it covers most the things that can 
prevent you from transmitting. :)

73, Jim K9YC