Technical Information

Antennas: 2 Meter Halo Antenna  432 Mhz 8 Element Quagi  6 Meter Base-Station Dipole - "High-Performance" 160 Meter short TX loop antenna  Six Meter Antennas  A Resource For Amateurs Facing Antenna Restrictions  Antenna Calculations - lots of neet stuff! Antenna Elmer - Lots of antenna info An-Ten-Ten-nas  Antenna Information Center at swl.sds.se  AntenneX  Antenna Topics From G3YCC  Antenna Software by W7EL  Beverage antennas de KG4W  Calculate the length of a 5/8 Wave Vertical Antenna  Coax Cable Table  Cobwebb Antenna 14 - 28 mhz - by G3TPW Copper Cactus (Multi-Band J-Pole)  Design a J-Pole Antenna  Design Your Own Dipoles And Inverted Vees  Design Your Own Quad  Flamethrower Antenna  Gain of the Axial-Mode Helix Antenna  Gain of an Endfire Array  Ground-mounted Verticals  KB1GW's Collection of Beverage Antenna Information  Kite Antennas  Mini Loops  Packet Radio Operators Antenna Handbook  Summary of experience with restricted space antennas  Radio Operator's Antenna Design Handbook  Rhombic Antenna Home Page  Rotatable Dipoles  Simple Seven Element Yagi Antenna - Java Slinky Clandestine Dipole  Slot Antenna Design  St. Louis Vertical - By Dave Gauding, NF0R  Standard G5RV Information  Super J-Pole Antenna(Collinear Design)  Transmission Lines and Matching Systems  W3LPL on Beverages  W6RCA's No-Tuner All-HF-Band Antenna  Why Are Antennas Built to Look Like They Do?  Yagi design program for vhf/uhf  Construction Projects 7N3WVM's Home Page for Homebrewers  73 kHz phasing transceiver  Amateur Radio Homebrew Projects on the Net  Amateur Radio QRP Projects  Amateur Radio Receivers by David White Amateur Repeater Builders Home Page  Amplifiers  Broadcast-Quality FM Transmitter Designs  Build Your Own CI-V Interface for Icom Radios  Construction Projects - by John Seboldt, K0JD  COR Hangtimer - simple controller to key a transmitter Doppler Direction Finder - David Robbins, K1TTT Electronic Cookbook Archive  Electrical Engineering Circuits Archive  Forrest Cooks Electronic Circuits  Getting the most from your repeater system  Glowbug Bibliography - Tube Projects Glowbug Transmitter - by KC5VQL Homebrew Corner from G3YCC  ITU REC-V.36 Descrambler - For EMWIN JF1OZL QRP,Hand Made Amateur Radio  K9KLT Power Line QRN Killer  KD9JQ Homebrewing Info - Nice site KnightSMiTe - Surface Mount tranceiver kit Lessons on Radio Design by AB4BE Mrx-40 - Mini 40 Meter Receiver Kit  Miniature Weather Satellite Data Receiver  NA4G's homebrew firebottle gear....  Norcal 38 Special - 30 Meter Superhet Transceiver  Norcal 49er - 40 Meter QRP Rig Norcal 49er Info from Knightlites  Optimist 80 - a QRPp DSB rig for 80 meters by SM6LKM.  Rainbow Tuner - QRP Antenna Tuner/SWR Bridge The Tuna Tin 2 Revisited - QRP 40M Transmitter PIXIE 2 TRANSCEIVER  Pixie2 Tips from WE6W  Projects Circuits from the Minnesota QRP Society  R2/T2 Construction Projects By K0JD  Repeater Builders Technical Information Page  ScQRPion Visual SWR Indicator  A Simple SWR Meter For QRP Levels - by WB0POQ SMIRK Technical List - Lots of 6 Meter Stuff SM0VPO'S Collection Of Projects  Tech Topics from the Northwest ARS  Valentin Gvozdev's Home Brew Page  VK6FKB's DSB Project  W8EDU Ham Radio Projects page  WB4QXE - Ham Homebrew page QRP Projects collection of WE6W

Modifications/Conversion/Troubleshooting: 50MHz Modification pages  6 Meter Tech Files  9600 baud Land Mobile Modifications - TAPR Alinco mods  Bearcat 210 Scanner Conversion for Weather Satellites  DRAKE MODS  E. F. Johnson Ranger Mods  GE 900 Mhz TMX/MVS/MCS To Amateur use  GE MASTR II InfoSite  GE MASTR II Conversion Info  GE Mastr II radios - Technical Information  GE MASTR II Convert to Repeater - Pictures Included GE Modification Page  Heathkit Service Bulletins and Mods - KB9JJA Heathkit Troubleshooting Tips  Heathkit SW-7800 Mods Web Page  Heatkit HW-7 Modifications  Heathkit HW-8 Rx Offset Fix  Icom IC-706 mods  Kenwood Application Notes  Kenwood Service Bulletins  Kenwood TS-850 Mods at KB1GW  MFJ Qrp Rig mods  Mods from AF4K  Mods from - Boston ARC Mods - Bucher Scanner & Ham Radio Mods  Mods -at cs.buffalo ftp server  Mods - From DXer.com  Mods - Hamster's Radio Modification Database  Mods at Oakland University ftp server  Mods at QRZ Radio  Mods Radio Modification Files  Mods from K7ON  Motorola Mods, and info  Motorola Modification Page  Motorola Micor Notes repeater use  Many Micor Modifications at kuggie  Motorola MICOR and MITREX  Motorola MITREX 440 to a 9600  QRP-PLUS "Anti-Thump" Mod  The Repeater Builders Technical Information Page  Repeater Modifications - by Information Sources Scanner - Baseband Audio Mods  Ten-Tec 509 Cleaner Keying Mod  Ten-Tec Argonaut 509 Improving SSB  Ten-Tec Argonauts Curing VHF Interference  Tips for Improving Receiver Performance  Yaesu FT-50 Information  Yaesu FT--50 information page - Compiled by KF4MYN  Yaesu VX-1R Unoffical Modifications page  Technical Reference: AC6V's TEC REF - Lots of good stuff Chip Directory  Coax Cable Database from Times Microwave  COAXIAL CABLE SPECIFICATIONS  Coaxial Cable Types  Component Database Server at Penn State  Conversion of Power (dBm to MilliWatts)  Dallas Semiconductor  Duplexer Tuning -  Eimac (Tube Manufacturer)  Electronics Info Page - of Tomi Engdahl Lots of Info FT243 Crystal Grinding Information Compilation  Good source for amplifier tips  Microstrip Calculator in Java  Motorola RF Transistor info  Molex Incorporated - Connectors  NiCad FAQ file  NTE Electronics - Free Cross Ref Svetlana Products  Times Microwave Systems  Toroid Design - by Jack Ponton, GM0RWU  Transistor Cross Reference Database - over 40,000 transistors Unusual Diode FAQ The  Tube Information Blue Glow In Tubes FAQ  Tubes Audio - Includes Spice Models Tube Data - Audio  Tube Data Guide - From Trevor Gale Tube data sheets  Tube data compiled by SM5GNN  Tube Directory, The - Italy, many foreign tubes Tube Gallery - Japan Tube Interchangeability guide - Hong Kong  Tube Lore - From the Tube Dude! Tube Substitution and Characteristics Guide  Tube Special Purpose to JAN Cross Ref  Tubes that glow - Mister Valve  Tube VT to HAN/RMA/EIA Types Cross Ref  Vacuum Tube Page  RFI / Interference INTERFERENCE HANDBOOK - From the FCC Reducing RFI with Ferrite  Misc Tunekit® - Filter Tuning Kit for Windows CircuitMaker - Professional, Easy-To-Use Schematic Design