Hi Dana, The 1500 Hz hole in SSB mode is an artifact of Weaver Demodulation. Looking at the KX3 Firmware Information document, MCU 00.77, DSP 00.74, 3-6-2012: IF the KXFL3 is installed, Weaver demodulation is enabled when HI-CUT is below 2.4 kHz.
John KN5L ______________________________________________________________ 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