[Elecraft] [K3] MMTTY

[Richard Ferch]

Mike,

I have not found this to be critical at all, once the audio and VOX levels
are set. First, using manual keying adjust the level out from the sound
card and the LINE input level on the K3 to just get the required 4-5 bars
of ALC. Then increase the K3's MAIN:VOX GN setting until the output from
the sound card triggers the VOX reliably.

If you also use voice modes with VOX, your VOX GN setting might be
different between voice and data modes. If this is a problem, my
suggestion would be to try changing the gain distribution in the first
step, by increasing the sound card output level and decreasing the K3's
LINE input level. This should allow you to use a lower VOX GN setting.
Just make sure that the sound card level is not set so high that the audio
amplifier inside the sound card is overdriven.

73,
Rich VE3KI


NF4L wrote:

>  How critical is the match between the K3  and MMTTY for it to
> transmit using VOX. If I key the rig manually, or use DTR it's OK.
> A different program (but using MMTTY) works just fine.