Download and setup Winrad
http://www.winrad.org/bin/Winrad1.4.2_setup.exe
For image rejection adjustment procedure go to
http://genesisradio.com.au/G40/10assemblyG40.html
Note: above adjustment tutorial is for G40
but the basics are the same. For example, for 30m band
LO (center frequency) is 10.125 MHz.
Set signal generator or 30m transmitter to 10.117 MHz and
adjust image at 10,133.

