Thank you both for your help. The problem is solved. Normally (about 98% of the time), LP-Bridge sits (software wise) between the K3 comport and the N1MM program. During contests, since there is a significant slow down with that arrangement when I attempt to use the CATASC1 SWT21 commands, I close the LP-Bridge program and go direct from N1MM to K3. Now since the setting for the comport in N1MM has the RTS set to always on and there is no "buffer" between the K3 and the N1MM program, we now have the conditions previously described. Setting the RTS to always off in the N1MM solves the problem.
This situation exemplifies my military training and experience in planning "as too many moving parts" to the problem and solution. Radio, LP-Bridge, N1MM program and Time. My very best regards to you both. Jerry, W1IE ______________________________________________________________ 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]

