[ICOM] Wave Files not keying IC746 VOX

[Kelly Taylor]

Hi

The 746 manual clearly suggests PTT is required when going in through the back. 

The description for AMTOR/PACKET above the pin out diagram shows PTT going from the computer to Pin 3 or Hsend. 

It also specifies an impedance of 10k ohm on Pin 4, versus 600 ohms on the mic connector, which suggests Pin 4 is downstream of the mic amp. 

73, Kelly 
ve4xt

Sent from my iPhone

> On Jan 20, 2016, at 11:03 AM, Mike <k4gmh at arrl.net> wrote:
> 
> Trying to get my IC746 to transmit using the VOX when a Wave file is played
> from the computer.  The 746 does work when the "TRANSMIT" button on the
> front panel is engaged and the function key is pressed.  Then the Wave file
> will drive the radio to full output and sounds good when listening using
> the built in monitor on the 746.  Also, VOX works without pushing the
> "TRANSMIT" button using a microphone.
> 
> The wave file comes from the computer into the 746 via ACC1, pin 4.
> 
> N1MM+ is the contest S/W being used.
> 
>  73,
>  Mike, K4GMH
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