Did you check the K3's SYNC DATA function described in the AMTOR/PACTOR section of the manual?
The K3’s SYNC DATA feature can be used to minimize T-R delays (it forces the same crystal filter to be used for both receive and transmit). Locate CONFIG:SYNC DT. Assign it to a programmable function (e.g., by holding PF1 ), then exit the menu. 73, Markus HB9BRJ / AE6MG -- View this message in context: http://elecraft.365791.n2.nabble.com/pactor-on-k3-tp6852177p6852859.html Sent from the Elecraft mailing list archive at Nabble.com. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html