SASQUATCH
SASQUATCH - DSP back-end
The Sasquatch board is a proposed DSP back-end intended for use by constructors who would like to operate the HPSDR stand-alone rather than attached to a PC.
Sasquatch could have the logic needed to implement a highly efficient VHF transmitter using envelope elimination and restoration techniques.
Required Reading for EER/HELAPS:
HELAPS article from AMSAT Eagle Pedia http://www.amsat.org/amsat-new/eagle/EaglePedia/index.php/Image:HELAPS_D_considerations.pdf
2401 MHz HELAPS transmitter block diagram http://www.amsat.org/amsat-new/eagle/EaglePedia/index.php/Image:HELAPS_D_preliminary_block_diagram_-_N2UO.pdf
RF Power Amplifiers, Mihai Albulet, Noble Publishing, ISBN 1-884932-12-6 http://hpsdr.org/wiki/index.php?title=Special:Booksources&isbn=1884932126
RF Power Amplifiers for Wireless Communications, Steve Cripps, Artech House, ISBN 0-89006-989-1 http://hpsdr.org/wiki/index.php?title=Special:Booksources&isbn=0890069891
Advanced Techniques in RF Power Amplifier Design, Steve Cripps, Artech House, ISBN 1-58053-282-9 http://hpsdr.org/wiki/index.php?title=Special:Booksources&isbn=1580532829
Watch this space...