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- Radio Equipment
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U.S. Government's military handbook on grounding in pdf format -
Optimal Working Frequencies (MHz) for High Frequency (HF) / Shortwave Radio. By region, updated monthy. -
The cobweb antenna it is basically a 5 band antenna comprising of 5 full half wave dipoles for each band - between 10 meters and 20 meters, the antenna is also resonant on 6M and can be modeled even for VHF frequencies. -
Amateur radio clip art for web pages, desktop wallpaper, newsletters and more! -
A simple dual band VHF UHF jpole antenna Projects by Dale Kubichek -
This improved multiband trap dipole introduces a new trap design and a change in trap location. The antenna features double-coaxial-cable-wound traps having lower reactance and a higher quality factor (Q) than earlier coax-cable traps by W8NX -
You'll find more than 330 Amateur Packet Radio Gateways on world maps. -
Attic Fan dipole antenna that allow to operate QRP from 40 metres to 10 metres, specifically 40, 20, 17, 15 & 10 meter band -
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. -
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 -
This web page is for all Radio Scanner listeners who live on or near the Gold Coast, Queensland. Australia -
FBB is a freeware bulletin board software for amateur packet-radio run on DOS Windows and Linux -
HF Ham Radio antennas for apartments and methods of shortening antennas -
Schematics, mechanical drawings and picture of a Receiving loop antenna by N5ESE - N5FC -
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An updated and classified collection of SDR projects and realizations -
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Online receiver streams signals from Jupiter and the sun -
CB radio's catalog with photos and features, in czech. -
4CX250B X2 K2RIW style 2m amplifier -
An easy to make trap dipole antenna for 40 and 20 meters -
A delta loop wire antenna plan for the 7 MHz band (40 meters) that is quick to setup and work with -
Product review & short takes columns from QST magazine -
Morse Decoder decodes Morse code characters trough the built-in microphone of your Android device. -
Ham Radio Audio Stream: listen live to German amateur radio repeaters. -
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This web player allow to listen to the Anne Arundel County Police and Fire Live Scanner Radio Feed -
This page describes a homebrew 80/40 meter trap vertical antenna. Includes an interesting antenna raising system that allow easy setup and tuning. -
Amateur Ham Radio Repeater in Google Maps. View by state or specific location. -
Lookup callsign histories & applications, available Amateur Extra callsigns, vanity callsign predictions, and more. Updated from FCC data several times a day. -
Reducing noise to your antenna can gain your aerial performance, learn how. -
Info on this discontinued HF Transceiver -
D-RATS is a small application designed to provide data communication capabilities with D-STAR radios. It supports text chatting, file transfers, position reporting and mapping, and much more! It is written in Python using GTK to run on multiple platforms. -
An easy VLF loop, 200Hz-20kHz reception without transformers by Renato Romero and Marco Bruno -
Merging Internet technology with Amateur Radio holds great promise. This article discusses the authors experiences in putting several Internet Remote Base stations on the air. By Stan Schretter, W4MQ, Brad Wyatt, K6WR, and Keith Lamonica, W7DXX -
Les relais Francais, map of ham radio repeaters in France -
Freeware amateur radio transceiver control program tested with IC-756 Pro. -
Icom IC-706 Cat control program, tested with Icom models 706, 706MKII, 706MKII/G and IC718 transceivers by IZ2BKT, Mauro. -
A project by G3SYC of a log periodic antenna for 6 meters band -
A.R.C. The National Publication For Buyers And Sellers Of Old Radios And Related Items--Published Monthly -
A simple dipole built for two-band operation can be used for portable use and operate 20 and 40 meter bands -
US, Japanese Australian and UK amateur radio licensing statistics including FCC database licences analysis and reports with geographical charts. A complex report generator is also available with current data. -
A very interesting and informative introduction to the 50 MHz band, also known as 6 meters or better the Magic Band, by Dave Finley N1IRZ, covering different propagation modes, operating experiences, and the excitement of the band. The content provides insight into the unique characteristics of six meters and its unpredictability in signal propagation. -
Radio and electronics technical site. -
Create Online Maps, Check Forcasts and Conditions, more features being added each month, by hfradio.org -
This page describes the loading coil (inductor) that W8WWV built for my center-loaded 160 meter band (1.83 MHz) vertical antenna. -
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Find your old radios here. Old Radios and Collectible Radios For Sale -
Antenna modelling techniques and examples by W4RNL -
QSO Map Deactivated Due to a new pricing structure for Google Maps APIs (since March 1, 2025), the map function is no longer free to use. For this reason, the QSO Map has been deactivated.