Last night, Dave A1AA alias WD2XSH/17 reported reception of MF WSPR signals from Stefan and myself. For me, this was the first-ever Atlantic crossing on MF, and you can guess I'm happy with this result.

 

The MF signal is generated directly using an programmable FE-5680A Rubidium standard, which is controlled from a Basic program setting the WSPR frequency sequence via RS-232. RF Power is generated by my 250 W Class-D LF PA, with the matching circuit temporarily converted to MF. The antenna is a Marconi at 8.5 m effective height. On the receive side, I have a FiFi-SDR set to 485 kHz LO and WSPR 2.11 in IQ mode.

 

Thanks very much Dave for being there and listening!

 

Best 73,

Markus (DF6NM)

 

 2012-11-08 23:24   DF6NM   0.475630   -22   0   JN59nj   1   WD2XSH/17   FN42pb   6087   296 
 2012-11-08 23:24   DK7FC   0.475641   -22   0   JN49ik   1   WD2XSH/17   FN42pb   5927   294 
 2012-11-08 23:20   DF6NM   0.475630   -23   0   JN59nj   1   WD2XSH/17   FN42pb   6087   296
 2012-11-08 23:16   DF6NM   0.475630   -24   0   JN59nj   1   WD2XSH/17   FN42pb   6087   296 
 2012-11-08 23:12   DK7FC   0.475641   -17   0   JN49ik   1   WD2XSH/17   FN42pb   5927   294