XCVR Transceivers A transceiver stands for TRANSmitter/reCEIVER, a combination of receiver and transmitter. Usually, a main element on radio amateur desk ("shack") and a door (or window) on the air. FlexRadio 6400 SmartSDR (on Macintosh) Global shortcuts CMD-D DX-Cluster View OPT-CMD-R Radio Control OPT-CMD-S Slice details OPT-CMD-P PTT OPT-CMD-P Log new QSO Key mappings