The K4 has a built in USB sound/RS232 connection. No external hardware needed.
In addition, unlike the K3, the audio response on DATA transmit from the K4 is flat, so no matter what audio frequency (within reason) you select, the TX output will be the same. The K3 had a fairly "lumpy" response across the passband, I guess which was due to using crystal filters. 73 Dave G4AON K4D #286 ______________________________________________________________ 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 Message delivered to arch...@mail-archive.com
