[Elecraft] Fldigi Mac no TX Audio

[a45wg]

Fellow Elecrafters,
		I am trying to do some Digital modes but using the computer/Software


I am running a MacMini, with K3-S. Software is a Fldigi  (3.23-13 latest as of today).

Wiring - 1 USB cable from K3-S to MacMini.
I am using the RIGCat interface.
Configure->Sound Card -> Audio is set to USB Audio Codec (See below for device confirmation)
K3-A is in DATA-A mode. 

PTT-KEY is set to OFF-OFF (mentioned in the k3.xml right file)

	QSY Works
	Mode Works
	RX Works - nice decoding on the Computer screen

But no TX Output. The K3-S red TX light is on - but nothing ….

As I have decoding on the Screen I am presuming that the USB cable is receiving Audio from the K3 correctly. 

The output from system_profiler SPAudioDataType yields sensible data…. specifically

Devices:

        Built-in Output:

          Default System Output Device: Yes
          Manufacturer: Apple Inc.
          Output Channels: 2
          Current SampleRate: 48000
          Transport: Built-in

        USB Audio CODEC :

          Default Output Device: Yes
          Manufacturer: Burr-Brown from TI              
          Output Channels: 2
          Current SampleRate: 48000
          Transport: USB

        USB Audio CODEC :

          Default Input Device: Yes
          Input Channels: 2
          Manufacturer: Burr-Brown from TI              
          Current SampleRate: 48000
          Transport: USB

So what am I missing ?

Answers on an electronic postcard please .


Regards

	Tim - A45WG