Jorge,

You cannot have RemoteRig and the K3 on the same COM port. You must use 2 different COM ports. Otherwise, the K3 drivers and the RemoteRig drivers on the RS-232 connection will interfere with each other.

If you do a study of RS-232 mark and space voltages, you will find that it is a point to point (one to one) communication. Other devices may "listen in" to the communications, but they must have all drivers disabled and set to a high impedance state. The K3 and the RemoteRig do not meet that criteria, so they cannot co-exist on the same COM port connection.

The only solution is to use 2 COM ports (one for K3 and one for RemoteRig), and if they must synchronize, that will need to be done in the computer - but I don't know of any software application that will do that synchronization.

73,
Don W3FPR

On 11/14/2017 4:26 PM, Jorge Diez - CX6VM wrote:
Hello Fred

I lost automatically antenna change because I needed to remove my CAT cable
from K3 to connect remoterig. Of course if I removed remoterig RS232 cable
and connect CAT cable all is OK as I had it before connecting remoterig

That switch A/B is not an option for what I am looking for,  I need both at
the same time
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[email protected]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to [email protected]

Reply via email to