| 10 ghz Wavemeter kit: Easy to build microwave test equipment for 10Ghz and above. |
| AERIALS: Amateur Radio Repeater Linking IRLP |
| Banding Design Works: Robert Anding, AA5OY, offers construction tips for PIC ID'er and Ham circuits. Schematics and other details presented. |
| Batwing Laboratories: Offers hints and tips for programming and using the Motorola 2-way radio. |
| BHI Noise Reduction: UK-based source of noise reduction products for amateur radio communications. |
| Crossed Field Antenna: Small, efficient antenna you can build or purchase |
| Datasheet Catalog: .PDF datasheets for electronic components, including RF modules, transistors, integrated circuits, and amateur equipment. |
| Electronic Communication: How to use Intel micro-controller, electronic hardware, and software. |
| Electronic Service Professionals: Radio and D104 modification service with some mod instructions provided. |
| Folding J-Pole: Folding J-Pole Antenna information, photos and plans. |
| G4LNA: A collection of circuits by Paul Balaam which include antennas, an AM modulator and noise cancelling. |
| HamRadioShack.net: A repository for HAM radio photos, antenna farms, DXpeditions, mobile operations and QSL cards. |
| HF-Fax: International electronic QSL provider via facsimile and SSTV. |
| High Fidelity Amateur Transmission: Information for SSB and ESSB audio transmitter, receiver and Recording/Playback for Amateur Radio. |
| Icom 245 LSB/USB Modification: A very hard-to-find modification for the Icom IC-245. Shows how to modify the radio for both LSB and USB. |
| ISM Band Antenna: Detailed instructions, diagrams and photos on making a helical antenna for the 2.4GHz ISM band. Suitable for long range wireless networking. |
| KB5WCK: Features antenna calculations, propogation, grid conversion, capacitor codes, resistor calculators, weblogs, and online testing. |
| Modifications for Hamradios.: Over 1700 modifications. |
| Norm's Rotor Service: Specializing in repairing antenna rotators. Order new and rebuilt rotors, control boxes and parts. |
| Pacific Northwest UHF-Microwave: Microwave activity and tech tips, including DSP-10. |
| Radio Mods Database and Manuals: Modifications, manuals and circuits of amateur radios. |
| RatTail Antenna Booster: A detachable antenna that doubles radio reception for hand-held radios. |
| TDP Radio Broadcast Transmittors: Includes specifications of new and old equipment and links to manufacturers. |
| Vårgårda Radio AB: Located in south-western Sweden. Specialists in towers and antennas. Information and FAQs, bands, and addresses to resellers in various countries. |
| World Radio Labs: Reviews of gear made by WRL under the names WRL, Globe, and Galaxy. Includes descriptions, original price, year of introduction, and photos of most gear. |
| WT9W: Information includes tips on winding toroids, desoldering, and general kit building. |
| Yaesu FL-7000: Tips on rebuilding, repairing, and applying modifications to the Yaesu FL-7000 amplifier. |
| Your Remote S-Meter: A Kenwood R-5000 communications receiver located in Salt Lake City that you can remotely control and receive S-Meter readings and audio from via a web browser. |
Classical
