[Elecraft] K3 - MicroKeyer 2 - mmtty transmit issues on RTTY using FSK-D mode

I am trying to get my K3 operational on rtty and have run aground. Receive works fine. Transmit using FSK-D mode in the K3 keys the transmitter but the FSK signal does not trigger the K3 to transmit both tones. I hear a single tone in the monitor and the P3 also shows the same thing.

Re: [Elecraft] K3 - MicroKeyer 2 - mmtty transmit issues on RTTY using FSK-D mode

Jim, I do not have enough information for a good answer, but I can ask a question -- What are the voltage levels you are applying to the ACC pin 1? It must be 0 volts and +5 volts - there is a pullup resistor in the K3, so you only need an open collector transistor to accomplish the keying

Re: [Elecraft] K3 - MicroKeyer 2 - mmtty transmit issues on RTTY using FSK-D mode

On Oct 24, 2010, at 4:57 PM, Jim Spears wrote: I hear a single tone in the monitor and the P3 also shows the same thing. A microKeyer does not modulate the FSK keying signal unless the keyer is commanded to do so by the software that is controlling it. If nothing is sent to the keyer from

Re: [Elecraft] K3 - MicroKeyer 2 - mmtty transmit issues on RTTY using FSK-D mode

Transmit using FSK-D mode in the K3 keys the transmitter but the FSK signal does not trigger the K3 to transmit both tones. I hear a single tone in the monitor and the P3 also shows the same thing. Which monitor? Is your software generating shift? Do you see the FSK LED flickering on MK