[Elecraft] band data from the RS232 port while using the USB cable?

[Don Wilhelm]

Steve,

I am not familiar with the Acom amp and its needs, but if it needs 4 
discrete band data lines, those are available on the ACC connector.  See 
the K3S manual for the pins.

The only lines on the RS-232 line (or USB) are RXD, TXD and Signal 
Ground, and band data is present on the communications line when data is 
flowing because of communications with something like a logging program.

73,
Don W3FPR

On 9/12/2017 3:34 AM, Steve Steltzer via Elecraft wrote:
> Brand new to the K3S. Is there a way to get band data to control an Acom amp on the RS232 port while using the USB cable? I had a lot of trouble with Win10 assigning the radio to ports already in use when I tried using the RS232 port. Going in and manually changing the port number in Device Manager didn't work. Finally got it working using the USB cable and I really don't want to go through all that hassle again to try and get PC comms working using the RS232 port. Apparently when you select USB in the menu, it shuts off the RS232 port?