As far as I know , only wspr and ros-mf have the ability to drive a pic/dds vfo , with only mf-1/7 giving a tailored mf qso mode ? mf-1 is quoted round -35 db noise floor , in tests with my 500K 35 f
MSK does not lend itself to generation on a PIC. It is NOT a two tone mode, but a waveform that transitions back and forth around a circle in phase space. Do not think of MSK as frequency Shift K
-- Forwarded message -- From: Murray Greenman <[email protected]> Date: 5 August 2010 07:14 Subject: CMSK Beta released To: Hi, there has been a lot of interest in the new software, and I'm sure m
http://www.qsl.net/z/zl1bpu/CMSK/cmsk.htm Please pass this on to your friends. Andy, could you also post the link to the RSGB_LF_Group for me please. Jay, what you found is very likely a small bug. I
Roger, Please don't allow my remark to kill any interest in WSPR at 137 kHz! My results with receiving at home have been fine at 500 kHz, and not so fine at 137 kHz. At first I suspected Loran lines,
Andy, I found on the web a few interesting pages of the book: "Research on the DDS to Generate MSK Signal" < http://books.google.fr/books?id=ITOlbhvbAbQC&pg=PA36&lpg=PA36&dq=MSK+DDS&source=bl&ots=wcQ
Hi Graham, LF, What about asking for a mod allowing support of a DDS ? MSK/CMSK has only two tones, whose frequencies are known. Therefore only one bit of information is required for one symbol. The
Re DDS Derived MSK... This approach is one of the all time bodges that just about every 'average' implementation of MSK for normal links makes use of. It is to asynchronously switch between two fr
