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A 46ft multi-band antenna for small gardens that works on 80m. An excellent DX performer and is an ideal replacement for your half size G5RV by G7FEK

A Free windows, universal program for RIG control, can read and set mode and frequency on your transceiver. The program can control ICOM, Yaesu and Kenwood transceivers, by DXSoft

Listen to Clearwater, Florida police including Pinellas County Fire, EMS as well as Pinellas County Sheriffs Department

An assortment of Amateur Radio-related technical articles written for the JUG, the newsletter of the Northern California Contest Club. Topics include unique but simple and useful radio modifications and accessories, and rig reviews.

Amateur radio shop based in germany, major supplier of wireless technology for ALINCO, Kenwood and ICOM.

Interconnecting the YAesu FT-897 or 897D

A project for a portable antenna for amateur radio satellite reception, for 2 meters and 70 centimeters bands

"Low profile antennas for the ""ham"" radio user"

The Homebase10 is a simple to make wire halo antenna for 10m (28MHz) built using parts available from the local DIY store.The resulting antenna is very effective on 10m despite its small size and light weight.

Over 200 Electronic Plans and Kits

Crossed-Field Antennas and E/H Antennas

Build a 5 watt, 80 meter QRP CW Transceiver Designed by N1HFX

A helix will work in the normal mode when the diameter and pitch of the helix is less than 0.1 Lambda

Freeware windows program for programming the Uniden SC230, BC246T, BC330T, BCD396, BC15T and BCD996T scanners. FreeSCAN allows to download and uploading programming, remote control the scanner, log hits, and supports printing out of systems and groups.

Russian page on IC-718 modifications

NY Live Suffolk County Police Scanner Feed

N7KSB used this 1/2 watt CW transmitter, with a roof-mounted ground-plane antenna to work all continents and over 30 countries

Original PSK31 awards by the 070 Club

This page describes two modifications W8WWV made to his AL-1200 amplifier. The mods were obtained from Ameritron, so they are official.

Streaming Live from Kennett MO

A Crank up mast pipe by Bob Bruninga

SDR Receiver a compact high performance HF software defined radio receiver designed to be used in fixed or portable stations. Version 2 of the receiver is now available. It now has an RF pre-amplifier using a power MOSFET and other revisions to improve it's performance both as a stand alone receiver and as an IF panadaptor with HF and VHF transceivers.

A circular waveguide calculator for designing cantennas include source code and windows executable by lincomatic

Homebrew 20m CW transceiver by MINOWA, Makoto 7N3WVM

The Discovery series of amplifiers are designed and built in the UK by Linear Amp UK Ltd, one of the world's leading amplifier manufacturers, specializing in high power RF tube amplifiers. The amplifiers use large GS31 or GS35 ceramic triode tubes. Band coverage 6m, 2m and 70 cms

This page includes fatures, specifications options and photos of the ICOM IC-746

A regenerative receiver project at AA5TB

Lot's of info on 950sdx tranceiver by Jeff King ZL4AI/DU7

Snohomish County Wa live police, fire and ems scanner Feed

Virtual Radar Server is a free windows decoder of ADS-B signals received by several radio receivers and support even networked data feed. The Server publish a Google Maps-based display of aircraft positions and flight list

The webring that contains lots of links relateed to pirate radio

RadioQTH's Vanity Calls service provides a utility for US amateur radio operators to locate available vanity callsigns, specifically focusing on the shortest possible options. The system filters through all potential callsigns within a user's license class and presents only those currently unused, with results weighted by either their actual character length or their equivalent length in _Morse code_. This approach assists hams in securing memorable and efficient callsigns for CW operation. The service also lists recently granted vanity callsigns, sorted by prefix, offering insight into current FCC assignments. It clarifies the common misconception that callsigns are granted on a first-come, first-served basis, explaining the random selection process for applications received on the same day. The platform updates frequently, providing current data on available 1x2, 2x1, 2x2, 1x3, and 2x3 callsign formats, which are highly sought after by _Extra Class_ and _Advanced Class_ licensees.

Welcome to Amateur Radio (HAM RADIO), by ARRL. A good Starting point for novices.

The RigPix database entry provides a comprehensive technical overview of the Icom IC-746 amateur HF/VHF transceiver, detailing its operational parameters and physical characteristics. It specifies the transmit frequency ranges across 10-160 meters plus WARC bands, 50-54 MHz, and 144-146/148 MHz, alongside receive coverage from 0.03-60 MHz and 108-174 MHz. The resource outlines supported modes including AM, FM, SSB, CW, and RTTY, noting a tuning step resolution down to 1 Hz and a frequency stability of ±5 ppm. Key electrical specifications are presented, such as a 13.8 VDC power supply requirement, current drain figures for RX (1.8-2 A) and TX (Max 20 A), and RF output power ranging from 5-40 W for AM and 5-100 W for FM, SSB (PEP), and CW. The entry details the triple conversion superheterodyne receiver system, listing IF frequencies at 69.01 MHz, 9.01 MHz, and 455 KHz, along with sensitivity ratings for various modes and bands. Transmitter section specifics include modulation systems and spurious emission levels. Additional features like a built-in auto ATU, electronic keyer, simple spectrum scope, DSP, and CI-V computer control are noted. The page also lists related documents, modifications, and an extensive array of optional accessories, including various filters, microphones, and external tuners, providing a complete profile of the IC-746.

Building coils for a portable dipole using a novel method of winding coils with weedeater cord! By K4MMG

EchoLink for Android is an edition of the EchoLink software that runs on an Android smartphone or tablet, such as a Motorola Droid or an HTC Evo.

Rotating towers equipment

This is a Live DX Cluster map powered by google maps diplays a map of ham radio QSOs or contacts based on qra locator and dx-cluster spots information

Introduction to NVIS advantages and disvantags.

Ethiopia

Manufacturers and distributors of coaxial surge protectors, coaxial switches, insultators, HF fixed wire antennas

G4URH calculations to design your own antennas, ground plane, half wave antennas, Quad Antennas and 5/8 verticals

The idea of using a low mount dipole, enhanced with reflector wires directly beneath the dipole, on the ground, appears to be a very good approach to creating an NVI specific antenna for local HF operation.

The W2DRZ Antenna controller system is a low cost but effective system to monitor and control an antenna system's position.

Sirtel produces a wide range of radio and telecommunications antennas

ERP Calculator is an Amateur Radio software utility designed to perform a side-by-side comparison of two Ham Radio antenna systems. ERP Calculator comes pre-programmed with data files including published data for several popular brands and types of coax cable as well as several popular antenna system brands and models. ERP Calculator displays values of ERP, Antenna Power Gain, Antenna Feed point Power, Antenna System Gain in dB, Antenna Gain in dBd, SWR Attenuation in dB, SWR Power Attenuation, Coax Loss in dB, and Coax Power Loss

ARCP-2000 Radio Control Program for the Kenwood TS-2000 transceiver.

Excel sheet containing technical comparisons of commercial HF portable antennas compiled by ON4SKY. Includes pictures, manufacturer, db gain, band coverage, F/B ratio, price, weight and dimensions.

Article by Ed Bathgate, N3SDO as published in CQ VHF Magazine July, 1988

High-power 3-500 HF linear amplifier by Don Pinnock G3HVA