homebrew rf attenuator

2 Element Quad Project - Homebrew quad antenna project you can build for very little cost for 12,11CB,10 meters and higher frequencies

Antennas : theory and designs - Thierry LOMBRY, ON4SKY, develops in several long articles all you need to know about antennas, their design and performance, for both amateurs and SWL

Oscar Kilo Dx Group - 11m radio Oscar Kilo dx group HQ based central Uk

RadioQTH - Ham radio vanity license search - RadioQTH Amateur Radio Vanity License Search: This site shows vanity call sign requests filed with the FCC, when call signs will be available for vanity applications and other useful tools that will help in the search for the perfect amateur radio vanity call sign.

All about Lightning protection - Thierry LOMBRY, ON4SKY, gives advice to amateurs about lightning protection of an hamshack, including pictures and links.

Radio Audio and sound files - Some tens of very special audio files recorded during amateur radio activities like aurora traffic, meteor scatter, communications with ISS crew and the sound of various transmission modes that you can hear on HF and VHF bands

Gizmotchy Antennas - The Charles Gizmotchy high performance horizontal and vertical beam antennas. Two, Six, Ten and eleven meters antennas

MixW RigExpert - USB INterface - MixW RigExpert integrates sound card with CAT, PTT, CW and FSK functions in a single box with USB connection to your desktop or notebook computer for operating phone, CW, and digital modes.

JWM Engineering Group - Top quality Microwave Phase Locked oscillators for DB6NT, DEMI and homebrew microwave transverters, and other support products.

TestInHouse - Manufacturer of RF Shielded boxes, RF shielded enclosures, test accessories for wireless phones and handhelds testing. RF and Audio test solutions. GSM, CDMA, BlueTooth, Wi-fi test.

QRP LABS - The QRPLABS series of single band QRP CW tranceiver kits are high performance CW tranceivers with easy operating features, small size and light weight.

QSLing and award chasing by ON4SKY - In his back office section, ON4SKY, initiates in a few articles the beginners in the art of QSLing and award chasing.

How to select an amplifier - Thierry LOMBRY, ON4SKY, develops in three long articles all you need to know about amplification, and how to seletc an HF and a solid-state amplifier, with pictures.

How to select a transceiver - Thierry LOMBRY, ON4SKY, develops in several technical articles the way to select a transceiver. His website includes also some in-depth reviews

The History of amateur radio from 900BC to date - Thierry LOMBRY, ON4SKY, develops in depth and with original pictures the long history of amateur radio all through the world from 900 BC to date.

QRP homebrew equipment by py2ohh - py2ohh homebrewing of receivers, transmiters and Test Equipment for ham and swl, using cheap, easy to find or surplus components

Basics of Propagation by ON4SKY - Thierry LOMBRY, ON4SKY, develops in several long articles the bascis of propagation. His website includes also a French section dealing with auroras.

Giles SkyWarn - Giles SkyWarn KI4CFK is an ARRL affiliated club dedicated to preparedness in case of severe weather or any emergency which requires emergency communications on 146.775

AEA - Wireless software - AEA Wireless Director Software Series turns PC's (running Windows 95/98/2000/ME or NT) into powerful tools that expand the use and power of SWR, Return Loss and Complex Impedance Analyzers.

SIGVIEW spectrum analyzer - Complete real time signal analysis software with wide range of powerful FFT spectral analysis tools, statistics functions and comprehensive visualization system.

K8TM Articles - This publications page lists articles on surface mount devices, amateur radio, soldering, shunts, and measuring large direct currents.

EI7BA's Amateur Radio Pages - Antennas and homebrew ancilliary equipment

F5RDH homebrew projects - some interestig homebrew projects

2m Band VHF antenna pre-amplifier - Homebrew pre-amp for 144-146 MHz amateur band and OSCAR Satellites, using BF981 Dual-gate MosFet. Gain ~15 dB, NF=1dB.

Homebrew QRP SSB Transceiver  ^pop - This page describes a homebrew QRP SSB transceiver built by WB9IPA.