I have recently completed a multi-band PC-less DDS WSPR signal source project. It uses a Microchip 16F628A to control a DDS-60 VFO. It features all band coverage from 6 through 160 meters plus transmit band scanning. Additional information is located at:
http://www.knology.net/~gmarcus/DDS_WSPR/
73,
Gene W3PM
