[Elecraft] K3 and DATA Mode Transmit Question

[Ed G]

My K3 seems to be all set up for RTTY – DATA Mode, AFSK A selected, I am using Line in on the rear panel (selected in the MENU), I use MMTTY/N1MM, and I use a microKeyer III.  All appears well except that I need to switch the K3 into USB mode to actually transmit RTTY.  If I have the K3 set to DATA mode, the PTT is working (K3 TX light comes on) but the K3 is not transmitting tones.  

This must be something simple I am overlooking. Any ideas for what to check?

--Ed—


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