bipolar regenerative rec

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

160/80m Coaxial Receiving Loop Antennas  ^pop - Receiving loop antenna for top band. This antenna allow to reduce noise on both bands. The stand alone 80m loop is approximately four feet in diameter. And made of light weight material. Which makes it ideal for portable use or you can mount it above a pre-existing vhf antenna, and due to it's small size it is quite rotatable.

rec.radio.cb - Citizen Band discussion area.

rec.radio.amateur.antenna - Antennas: theory, techniques, construction

rec.radio.amateur.digital.misc - Packet and other digital radio modes.

rec.radio.amateur.packet - Packet radio.

rec.radio.amateur.equipment - All about HAM radio hardware.

rec.radio.amateur.homebrew - HAM construction and experimentation

rec.radio.amateur.misc - HAM radio practices, contests, events, rules, etc.

rec.radio.amateur.policy - Radio use & regulation policy.

rec.radio.amateur.space - Amateur radio transmissions through space

rec.radio.info - Informational postings related to radio. (Moderated)

rec.radio.scanner - Topics relating to noncommercial radio

Icom America - Manufacturer of amateur, avionic, land mobile, marine and communications scanner & receiver equipment.

Alinco - Alinco amateur radio transceivers manufacturer. HF Radios, Mobile transceivers, VHF UHF handhelds, receivers, scanners, power supplies and accessories

WiNRADiO Communications - Pioneering the integration of radio and personal computing, WiNRADiO Communications are the manufacturers of award-winning range of computer-controlled WiNRADiO receivers for professional and amateur applications.

International Components - International Components Corporation has an extensive range of electronic components consisting of audible signal devices, speakers, microphones, capacitors, electron tubes, connectors, and accessories designed in recognition of the diversity of applications and special characteristics encountered by designers in today's complex world.

Getting Started with Sound Card Digital Modes - Setting your Amateur radio station up to operate the wide range of modern radio software which uses the PC sound card to generate and receive signals. Murray Greenman ZL1BPU

Meteoritos y Recursos GeolĄgicos del Espacio - Spanish only website with mail list and meteor showers reports.

Build a direction finder - Build a VHF radio direction finder by WB2HOL

Australian Space Forecast Centre - Current HF Radio Propagation and Space Weather Report

Propagation Forecast by AD5Q - 11 Years of monthly propagation reports from February 1988 to January 1999 by AD5Q

NovaLynx Corporation - "Instruments & Systems for Weather & Water Monitoring; weather stations, wind alarms, sensors for wind speed, wind direction, precipitation, temperature, relative humidity, barometric pressure, solar radiation, evaporation, rain & snow gauges, lightning detection."

MacProp - Propagation forecasting software for the Macintosh

Radio Propagation & Diffraction Calculator  ^pop - This is a radio frequency propagation calculator for the transmission path between an RF transmitter and a receiver.