> The little small 5 pin plug fm the PK-232mbx on the left side of the tnc and > also the 5 pin din plug in the middle of the tnc which are put together into > the 8 pin din plug with goes into the ACC 1 on the back of this Icon-746 Im > checking out to see how it runs on FSK. http://www.qsl.net/wa9als/pk232.htm might help some, Tom. It tells how to do it for the 1000MP and has the PK-232 pinouts. GL- 73