Yankee Clipper Contest Club
- Special purpose amateur radio club devoted to the pursuit of operating and technical excellence. This site serves as a library of amateur radio contest and DX information.
Q-PAR Microwave Antennas
- The company (founded in 1973) excels in the research, design, development and manufacture of microwave antenna systems & components. Our range includes horn, reflector, sinuous, spiral, LPDA, helical antennas, etc; antenna positioners, and many bespoke components.
- Orbitessera provides a mosaic of orbital information. Information is provided for the Space Shuttle, the International Space Station , Mir Space Station , and general Satellite Keplerian Elements information
- Shareware dual channel audio spectrum analyzer for Windows 2000/XP which can provide either a scrolling time-frequency display or a spectrum analyzer scope display in real time for any sound source connected to your sound card. Can be used for MTHELL, QRSS and DFCW by R S Horne