Cubical Quad Antenna Designpop
- By N6VNG, can be used to determine the element lengths and the gamma match values for different frequencies, includes link to excel files with formulas to dimension your quad antenna.
South Eastern Amateur Radio Group
- EI2WRC Based in Waterford, Ireland. Resources, Information and Links about Amateur Radio, Propagation, DX, Repeaters, News, Packet etc. Also contains useful charts and maps and a Photo Album of out club.
- Macintosh automatic position reporting system, developed by Bob Bruninga, WB4APR, to track boats and vehicles using GPS and packet radio. MacAPRS was written by Keith Sproul, WU2Z and Mark Sproul, KB2ICI