low power amp

The TTFD-2 antenna - The lowest-cost approach for home brewing broadband, general-purpose antenna for shortwaves

IZ7ATH Projects  ^pop - Antennas, Keyer, amplifier, transverter, baluns

CB Quad antenna  ^pop - A low-cost and easy to build Quad antenna tuned for CB band on 27 Mhz.

QNEWS Ham Radio News - Daily updates to the weekly QNEWS Ham Radio News service in text realaudio and RF

Harlow & District Amateur Radio Society - Local radio club for Harlow in Essex, England

Tampa Amateur Radio Club - Since 1922 Tampa's largest Ham organization. Dedicated to hams by hams. Classes in theory, code, and experimentation are a regular event.

Central New Hampshire Amateur Radio Club - ARRL special service club

Mt. Airy VHF Radio Club - "Better known as the ""Pack Rats"" W3CCX, Southampton PA"

EA7FTR Fran - Manager of ea7ftr ed7ftr an7ftr and stamps collection

Virtual Tuner - VirtualTuner.com is a free service that allows you to search through our database of thousands of streaming media and radio sites.

Bergey Windpower Co. - Bergey Windpower is one of the world’s leading suppliers of small wind turbines

MaCo Antennas - Maco Manufacturing, HF Antennas, gamma matches, cable assemblies, power supply, swr meters, watt meters

Nally radio towers - Radio towers with designs made specificaly for Amateur Radio operators, incorporating mounting plates for most common rotators with in tower structure allowing for safety in the use,and tilt over preventing the need for climbing towers during regular maintance

Ten Tec  ^pop - HF, VHF, transeivers kit's, amplifiers and more.

Autek Research - Autek Research make three models of RF Analysts, power and swr meters

Diamond Antenna  ^pop - Base station and repeater antennas, mobile antennas, ,multi-band HF antennas , handheld transceivers, receiving and scanner antennas, power meters, swr meters, power supplies, coaxial switches

Hellschreiber beacon project - This web site describes a low power beacon system to be used for propagation and performance tests on the lower bands. The beacon offers CW (on-off keyed) modes and FSK modes; the traditional Morse ID mode, and Feld-Hell, another highly noise immune CW mode.

Andrews Communications Systems - Australian dealer, HF linear amplifiers, power supplies, baluns, HF UHF yagis and verticals including multiband HF verticals.

Prime Time Shortwave  ^updated Priority listing - The latest shortwave broadcast schedules with listings by time, country and frequency plus a DX program guide.

Frequency Manager - Database system with 60000 frequencies, powerfull 3D MUF/LUF-propagtion software and full copntrol of several receivers

Amplifier Simulation Program - ASP 4.0 - Design weak signal GaAs FET or bipolar PreAmps. Automatically designs for optimum gain, NF, VSWR or all.

BBA-C1 Amplifier Card - This versatile broadband amplifier is used in several DX Lab projects.

100W HF QRO linear amplifier - Based on Motorola MRF454, schematics and component list

SSB and CW Filter - A pdf file with schematics of an ssb and cw filter AF amplifier

Field strenght meter - Simple to build with a very clear instruction set, useful to check the radiated power of your antennas