homebrew rf attenuator

Handi-Tenna portable satellite antenna - Here is a high-performance hand-held beam antenna that is easy to build and guaranteed to improve your downlink from the LEO satellites over ANY rubber duck or mobile whip

ZF2CJ & AB2RF/6Y5 - 28 Dec 05 - 4 Jan 06 Grand Cayman IOTA: NA 016 GL: EK99, Jamaica IOTA: NA097 GL: FK17

SoftRock-40 - The SoftRock-40 is a small, low-cost, good-performing "software defined radio" receiver that plugs into a computer USB port and delivers I-Q audio signals to the computer's sound card. It was designed by Tony Parks, KB9YIG and Bill Tracey, KD5TFD as an "SDR sampler project" for hams everywhere to easily try out software defined radio.

Bicycle-Mobile antenna - WA5FRF VHF mobile antenna for bicycle installation

WA4DSY 56KB RF Modem - This is a prototype of the WA4DSY 56KB RF modem. It is intended for use on amateur packet radio networks. The modem generates RF in the 28 to 30 mhz range and requires and linear transverter to convert the signal to a UHF or microwave ham band

The Yaesu FT-1000mp mark-v review - Luxorion Yaesu FT-1000MP Mark-V transceiver review

Pc interface cable for Kenwood TH-F7E / TH-F6A - Implementation by SM4XDJ, Sweden

Yaesu VX5 Yahoo group - Yaesuvx5: this is a list devoted to the wonderful yaesu vx-5, includes lots of info and thousands of owners.

Dynamic Signal - The Largest Selection of Cable Assemblies and Accessories. Coaxial Cables, Fiber Optic Cables, Connectors, Attenuators, Terminators, and Tools.

Advanced Communications - Refurbished used test equipment, rfand power amplifier repair, two way radios sales and service

DxLink Priority listing - DxLink, a freeware DX cluster user software. Connect via Telnet or packet. CAT-interface and telnet out to run with your favorite logging software. Now version 1.5

High Performance Software Defined Radio - The HPSDR is an open source, GNU type, hardware and software project intended as a "next generation" Software Defined Radio (SDR) for use by Radio Amateurs and Short Wave Listeners

3 x 4-400A project - An RF amplifier project by W7IUV

Offset attenuator project - Build An Offset Attenuator by Joe Moell KØOV as featured in Homing In for May 1998

Powerline communications - Europeam perspective on BPL PLC

New Developments with PLC in Japan - The Japan Amateur Radio League (JARL) is cautiously watching new developments concerning the commercialization of Power Line Communications (PLC), while continuing to carry out joint experiments with a high speed power line communication promoters' alliance to reduce potential interference to radio communications.

Are you ready for BPL - Broadband over power lines (BPL) is a technique for transmission of high speed data (broadband Internet) over powerlines. Access BPL technology injects radio frequency energy into powerlines which were not designed for transmission of radio frequency energy, and leak substantial energy that causes interference to radiocommunications service

BPL Interference - Zip file taht contains a tutorial section that explains several different BPL technologies

BPL Interference to Radiocommunications - Here are some excerpts from the international radio regulations and fccrules

Broadband over power lines - Compatibility and BPL RF Interference

Bpl interference blocked in europe - Blog post announcing that Ham Radio, shortwave listeners and broadcast band listeners will be protected by Law in Europe

Pc-programming cable for kenwood th-g71a / th-f6a - The interface described here has been verified to work on the TH-G71 and also the the TH-F6A/TH-F7E

SDR - Software Defined Radio - Forum - SDR Forum - organization dedicated to promoting the development, deployment and use of software defined radio technologies for advanced wireless systems.

SDR Forum Primer - SDR Functional Perspective, comcepts and related informations

Wavefront CompactPCI (CPCI) RF converter - The Wavefront CompactPCI (CPCI) RF converter provides a complete half-duplex radio front-end in an industry-standard 6U format. The architecture consists of dedicated receive and transmit channels that share a common RF interface.