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N2APB SDR Cube Transceiver  Collins Radio Association American QRP Club Midnight Design Solutions 
Google NUE-PSK Digital Modem Vintage Radio (Wikipedia) NJ-QRP Club JUMA Kits 
QRZ SNA Glowbugs Web Page (W7EKB) QRP ARCI QRP-Labs (Hans Summers)
AMRAD (Tacos) DDS-60 Glowbugs Info NorCal QRP Club Kanga US 
ARRL GPS Display Terminal (GDT) Glowbugs Web Four State QRP Group EleCraft
Elektor Micro908 Antenna Analyzer Boatanchors G-QRP Club Kits and Parts 
Circuit Cellar NAT RadioBanter Lists North Georgia QRP (NOGA) QRP Kits  (Pacific Antenna)
Yahoo Groups HC908 VFO  Antique Radio Forums   The Parts Place (K5NWA) HC908 Daughtercard Electric Radio Mag Great Personal Project Pages Dan's Small Parts
eBay BITX40 ER Mag Index Loftur E. Jónasson TF3LJ Mike's Hard To Find Parts
PayPal SDR-Widget-Lite BAMA (Manuals) K5BCQ & K5JHF Kits  SDR-Kits
Verizon Central SoftRock Sales K2TQN Old radio Columns ZL2PD QRPme
FaceBook  SoftRock Info Heathkit Museum Talking Electronics on the Web QRP Guys
LinkedIn  Softrock Drivers   W5DOR Ye Olde Disk Shoppe
Chords  Charleston SDR MEGA VINTAGE LINKS VA3IUL Homebrew Circuit Ideas EMTECH
Mods.DK AA0ZZ EZKeyer  Essential Vintage Radio Links W3PM WSPR American Morse
Old Time Radio Shows PIC-EL II & PIC-EL III  Antique Radio Lists (AC6V) F6IDT projects MFJ Enterprises
Monitoring Times Archives IQPro VFO and LNA/LPF     Oak Hills Research
REFERENCE UHF Hybrid Synth AMfone  (website) KB5NJD  (630m & 2200m) Milestone Technologies
Grounding KD1JV Tenna Dipper Class E AM Forum W3FPR (K2 Projects)  Vectronics
RF Cafe Atmel Butterfly Projects N6EV Glowbug Page Paul Harden NA5N LDG Electronics
RF Academy Balanced Line Tuner (BLT+) The AM Window AA0ZZ Projects Amateur Electronic Supply
Tonne Software Switched Longwire Tuner (SLT) The ARRL Phone Operating & Activities WB6DHW Projects  RF Connection (Joel)
K8CU Technical Topics KA7EXM Power Meter   QRP Homebuilder (VE7BPO)  
Meter Builder (RF Pwr Meter) Elecraft KX1 Transceiver VINTAGE PARTS VENDORS AL7FS PARTS VENDORS
Greg Adams' Filter & Design SW Elecraft K2 Transceiver Radio Daze KD1JV Kits Digi-Key
EZNEC Antenna SW (W7EL) Elecraft T1 Tuner Antique Radio Supply JF10ZL (Homebrew Projects) Mouser Electronics
NEC2GO   Surplus Sales of Nebraska K0JD (R2/T2 info) Newark Electronics
Data Sheet Archive SPECIALTY LINKS Vacuum Tube Supplies G3YCC Farnell
L. B. Cebik, W4RNL TAPR Antique Electronics Supply K7QO Arrow Electronics
  AntenneX Magazine Nationwide Radio & Eq. WE6W Future Electronics
PIC-A-STAR Longwave Club of America Bob's Antique Radio & Parts K8IQY (2N2/40, 2N2/15) Allied Electronics
PIC-A-STAR DSP XCVR Project RF Cafe - Conversion Tables   SM0VPO Jameco
Glenn's PCBs & Construction Spectrum Analyzer GOOD BOATANCHOR PROJECTS JF1OZL FAR Circuits
TrxAVR-Picastar Technical Bibliographies HBR-16 Receiver Todd K4MSW Radio Shack
Glenn's TrxAVR Construction W7ZOI Spectrum Analyzer SoftRock + R-390A 7N3WVM ByteMark
User Group Steve Hageman's Workshop Greg Latta AA8V K1TTT  (tech reference) Texas Instruments
Builder Group Mods for Commercial Rig Emmitt's Fix-It Shop (HRO-60 + HBT-90) S56AL (projects) Philips Semiconductors
    HBR-16 by Joe K8KEJ VK5BR Fair Radio Sales
POPULAR LISTS & BLOGS GPS AC-1 Transmitter   Barker & Williamson
Time Nuts DIY GPS Receiver Class E AM Transmitter DSP DEVELOPMENT International Crystal
NUE-PSK Digital Modem Disciplined GPS Clock (ZL1BPU) K1KBW KK7P DSPx Project NTE Electronics
SDR Cube Transceiver  GPS Stabilised 10 MHZ Osc (G3RUH) WA1QIX "DSP10" Software Defined Radio Radio Adventures
Softrock Simple GPS Stabilized 10 MHz Osc (G3RUH)   Analog Devices ADSP-2189M Vector Electronics
Mobo CNS Systems (professional) YAESU FT-817 LINKS EME, SETI, DSP Harbor Freight Tools
SDR-Widget Brook Shera's GPS Projects KA7OEI FT-817 Pages Bibliography of DSP Textboooks Lashen Electronics
UHFSDR Simplest GPS-DO (Andrew Talbot) W4RT Electronics    
HBR Gepetto Electronics (Nic Sayer Products)) Yaesu FT-817 Website SOLDERSMOKE  
NJQRP   K6XX Technical Specs Page Podcasts SURPLUS ELECTRONICS 
AQRP   Yahoo FT-817 E-Group "Gadgeteer" Homepage Parts Express
QRP-L AMATEUR TIME & FREQUENCY     Goldmine Electronics
Universal VFO Controller LeapSecond SCHEMATIC CAPTURE PSK-31 All Electronics
HF Pack Doug Hogarth "Niceties" Circard (Holophase) Eduardo EA2BAJ Page B.G.Micro
DDS VFO Time & Freq Measurement (Ackerman) Eagle (CadSoft) PSKcore DLL Project Marlin P. Jones (MPJ)
Elecraft Fundamentals (NIST) DipTrace WM2U  
HamSDR Timing (KO4BB) ExpressPCB Treatise on PSK by J. Forrer UNIQUE PARTS
PSK31 Brook Clarke's Time & Freq   WinPSK  Midnight Science
QRP-Tech KE5X Small Parts PCB FAB SHOPS  
dsPIC Books NAPPCO Fastener MyRO PCB (prod)  
Butternut Antennas NIST Time & Frequency Online Metals PCBnet (proto)  
SDR-1000 Forum Bill Riley Publications   4PCB (proto)  
  GPS Time METALS Alberta Printed Circuits  
    Online Metals Channel Island Circuits  


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ast updated:  Sep 17, 2017