Hi guys, Hello Ron, I just tried to use the CW keyer on the same port as the radio but that doesn't work as soon I have the CW selected the radio polling stops. CW intefacing works after set the mode to CW I use DTR on the same radio port with DX4WIN without any problem. The radio is a TS-570DG Any help ? Thanks Marc ON6AA -- WWW: http://www.writelog.com/ Submissions: writelog@contesting.com Administrative requests: writelog-REQUEST@contesting.com Problems: owner-writelog@contesting.com