Hello. I try to setup my old digital interface. This is a old interface from G3LIV called isoterm. I need to use comport to have to ptt. Is this possible? ------------------------------------------------- 73 de Christer http://www.sa6aqp.se http://www.sk6hd.se SA6AQP/SG6A/SI6W Christer Johansson Dotorpsgatan 55B SE-52144 Falkoping SWEDEN