[Elecraft] Re: no output on "line out"?

[Franki ON5ZO]

OK K3 "connoisseurs", I've got some more information on my RTTY / line out 
problem.

- K3 + line out = OK.
- microHAM hardware and software = OK.
- I tune to an RTTY transmission and have the K3 decode. The tuning aid 
tells me I'm right on. I'm not using Dual PB and listen 300Hz wide on a 
500Hz roofing filter. K3 decodes 100%.
- MMTTY does NOT show a trace and plays dead. Hence me believing the line 
output was dead or the input of the MK2R+ was broken.

BUT when I drive the filter wider, say from 800Hz up MMTTY starts showing a 
signal. And when I listen 4kHz wide, I see the spectrum.
HOWEVER what MMTTY shows me is 'skewed', as if MMTTY listens off frequency 
while the K3 is dead on. I played with Dual PB but that doesn't help either. 
I consulted the manual but I missed the golden clue?
Does anyone use K3 Line Out to drive MMTTY? And does this occur?

TNX again de ON5ZO