low power

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

Loop Antenna for 6m  ^pop - Indoor loop antenna for six meters band, project by Colen Harlow, G8BTK

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

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

RM Italy  ^{updated  pop} - RM is an Italian company operating in the radio communication field since 1974, main products are: HF-CB-VHF-UHF-Dual Band Amplifier, Power Supply, DC-DC Converters Antennas and more

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

Bird Electronic - Design and manufacture of components, instruments and systems for RF power measurement.

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

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.

CWJF CW Club - Juiz de Fora CW club Brasil

N1YHR - packet radio station - Cape Cod area packet radio system, Echolink Node #276022

MIR SSTV Photos - SSTV pictures received from MIR via Slow Scan TV, by WB8ERJ Mike.

Small Power - Carry a full line of nimh batteries and charers. Maha, Nexecell and more

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

Scanrec Scanner Recorder - Scanner Recorder (Scanrec) is a free audio recorder that is primarily designed to record speech. It has a VOX control that allows the user to save disk space when no sound is present in the signal. Since FM communications has such an effective squelch, the recorder works best with FM. HF ham bands and World Band radio have such a poor signal to noise ratio that the VOX gate on Scanrec might not be very easy to set.

Free programmable DSP-Filter  ^pop - Free programmable LOW/HIGH/BANDPASS FIR filter in the audio range 0-4kHz

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

SSTV1 - SSTV1 Modem software is an AFM modem that runs on the TAPR/AMSAT DSP-93 hardware platform that can be used to receive and transmit Slow Scan Television(SSTV) signals.

ERP Calculator - DOS program that will assist you in determining your 2 meter station's Effective Radiated Power (ERP)

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