The Multi-Band Fan Dipole
- How to build a multi-band dipole antenna with a single coax feed.
Instructions for a 160M antenna that will fit in the space that a 75M dipole will with almost as good of results as a full size 160M dipole!
Crossed-Wire HF Antenna
- This Crossed-Wire Electrically-Steerable HF Antenna, capable of transmitting signals over the entire 1.8 to 30MHz HF range, and capable of receiving signals at much lower frequencies is basically a crossed centre-fed wire system, consisting of four thin wires brought to a central mast by G3YNH
- Drake has been a manufacturer of electronic communications equipment for over 50 years. Our reputation for producing quality American made equipment has been well earned and is respected internationally. Today Drake produces equipment for various markets around the world.
SPRE Home Page
- The Spartan Packet Radio Experiment (SPRE) is an Amateur Radio (Ham radio) communications experiment. The primary mission was to test satellite tracking using amateur packet radio and Global Positioning System (GPS). SPRE was developed and built by the University of Maryland Amateur Radio Association (UMARA) with assistance from NASA, volunteer engineers, and volunteer software professionals.