Component data sheets: 2N3904: http://www.fairchildsemi.com/ds/2N/2N3904.pdf 2N2222: http://www.fairchildsemi.com/ds/PN/PN2222A.pdf LM317L: http://www.national.com/ds/LM/LM317L.pdf LM78L05: http://www.national.com/ds/LM/LM78L05.pdf LMC6034: http://www.national.com/ds/LM/LMC6034.pdf MC3362: http://mot2.indirect.com/books/dl128/pdf/mc3362rev2h.pdf MC145162: http://mot2.indirect.com/books/dl110/pdf/mc145162rev3-1.pdf MC14046: http://mot2.indirect.com/books/dl131/pdf/mc14046brev4.pdf MC14069: http://mot2.indirect.com/books/dl131/pdf/mc14069ubrev3.pdf MC14024: http://mot2.indirect.com/books/dl131/pdf/mc14024brev3.pdf MPF102: http://mot2.indirect.com/books/dl126/pdf/mpf102rev0d.pdf 74HC244: http://mot2.indirect.com/books/dl129/pdf/mc74hc244arev7.pdf MV104: http://mot2.indirect.com/books/sg73/gifs/5.1smsig_msg.23.gif TOKO Coils: http://www.tokoam.com/variable/index.html PIC information: PIC 16F84: http://www.microchip.com/download/lit/micros/30430c.pdf MPLAB: http://www.microchip.com/download/devtools/docs/mpl331.zip Suppliers: DigiKey: http://www.digikey.com Newark: http://www.newark.com Misc information/programs: Current U.S. DGPS Station Status: http://www.navcen.uscg.mil/ADO/DgpsSelectStatus.asp U.S. DGPS Station Frequencies: http://www.ngs.noaa.gov/CORS/Dgps.html U.S. DGPS System: http://www.navcen.uscg.mil/dgps/dgeninfo/dgpsdoc.pdf U.S. Coast Guard Interface Control Document IDC200 for GPS: http://www.navcen.uscg.mil/gps/geninfo/gpsdocuments/icd200/icd200c.pdf (contains the information needed for the parity calculation)Rich Heineck's DGPS Receivers:
Curt Mills GPS/DGPS Page:
http://www.eskimo.com/~archer/gpsframe.html
(Very good DGPS info)
Sam Worley's DGPS Page:
http://www.cnde.iastate.edu/staff/swormley/gps/dgps.html
(Lots of DGPS info and links)
A neat little program for designing phase lock loops:
http://www.cdrom.com/pub/simtelnet/msdos/hamradio/pll2v2.zip
Very good FAQs on LCDs:
ftp://toleak.etec.wwu.edu/pub/lcd_faq.txt
http://www.IAEhv.nl/users/pouweha/lcd.htm