band pass filter

The Kite and Balloon Antenna Site - A complete site for anyone wanting to use kites or balloons for supporting Top Band antenna systems.

Indoor antenna de F6CYV  ^pop - Indoor wire antenna project for 7 Mhz band

UK Citizens Band radio - United Kingdom CB information from beginners basics to technical data

FRARS Amateur Radio Club - FRARS is a local ham radio club based in Poole, Dorset and has members active on all bands from 73KHz to Light!

Knightsqrss Info Page - This mailing list is devoted to low power, narrowband experimenting (QRSS CW, DFCW, etc). You are invited to share your ideas with the group, announce on-the-air schedules, etc by posting messages

Ham Radio Help - This group is being formed to support those radio enthusiasts that already have experience in SWL, Scanners, or Citizen Band/FRS radio that would like to know more about becoming a Ham.

Eurofrequence Dierking NF HF Technik - UFB Hamradio audio filters and more accessories

KB6KQ Loop antennas - Horizontally polarized, omnidirectional loop antennas for VHF and 70cm amateur bands

Laipac Technology Inc. - We are committed to constantly improving our solutions in areas of GPS System, GPS Receivers, GPS Antennas, GPS Dataloggers, RF Modules, Wireless Security Systems, Automatic Vehicle Location (AVL) for real time and passive tracking

FM ATV repeater PI6ATS - Dutch ATV repeater with input in 13 cm band and output in 24 cm band. All home made, including antennas.

On-Line HF Propagation Prediction - *One single page* gives you an immediate overview of current shortwave propagation conditions at your location.

Monitoring The Iraq War - Monitoring The Iraq War As the world waits and watches Iraq, if you've got a``shortwave receiver with sideband mode (USB and LSB) you can hear certain``military communications

Cfm Communications - CB Radio and 10 through 12 meter band radio dealer. Ranger Communications factory authorized dealer. Service 10 and 12 meter and CB radios.

The Shortwave Store - World Band Radios and accessories for your listening needs! Grundig, Sangean, Sony, WiNRADiO and much more.

Current DRM schedule - Permanently updated list of DRM broadcasts on AM bands

HF Analyzer - Professional analyser HF signals, work with bandwidth 500Hz....60Mhz, ddc-mode, scope, spectrum

FTB8900 - Memory management (cloning) software for the Yaesu FT-8900R quad band FM mobile transceiver

AREight - This is the most advanced scanner software for the AR8200 and the AR8600. It can effect any type of scan, can scan from 1KHz to 3000MHz in one time. The AREight is a software for help you to listen signals from around the globe on the shortwave bands

Axis Spectrum Analyzer - Axis Spectrum Analyzer allows you to record audio along with sincronized 31 band spectrum analyzer readings from any audio source to be inputed into Macromedia Flash movies in an easy to integrate way. The software can also be used to display real-time audio with customized visuals on video devices such as projectors, tvs,etc.

11Meter Amps  ^pop - This group is here to discuss linear amplifiers used on the 11 meter citizens band.

2 m. Band VHF PA 5 Watts - A VHF power amplifier made with two cheap RF transistors, 2N3924 as driver and a BFS22A for final stage, giving an unexpected output power of 7-8 watts maximum

Variable bandwidth cw filter - As the sunspots return and DX propagation conditions to improve, the age old problem with QRM begins to show up on the amateur bands. Thif filter help you on improving reception

QRP equipment - Simple QRP rigs, Transceivers with single side band direct conversion receivers, Receivers, Frequency counters for QRP

2 Meter FM Channelized Frequencies - It is possible to program almost every repeater and simplex frequency for most areas for the entire 2 meter FM band plan into a radio's memory channels.

VHF CW Transmitter - Simple CW transmitter for the two meters band