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DK7ZB- Moxons with Aluminium Tubes, plans for moxon antenna for 6 10 12 15 meters

This free program displays the location of any locator on a map. It calaculates between two Maidenhead locators the distance (km and miles) azimuth longitude latitude Show the location, direction and distance as you move your mouse on a map! Graphical Locator Program, By ON6MU

Amateur Radio website with links to radio, IT and the Arts and a link to my Yahoo VHF-CW Reflector.

A magnetic loop antenna using a 28\" bicycle rim for six meter band

G3WZT design for a bi-polar 600W Linear Power Amplifier for the 6M band.

A light and portable magnetic loop antenna with improved bandwidth and performance by HB9MTN

The Skeleton Slot Antenna Revisited by Bobby Brainwave, N3VGS PDF File.

Overvoltage protection, Voltage stabilization, Grounding in wiring, Ground wire resistance

March Paddle by K4QU

conversion of low band VHF Philips FM-92E to 6 metres

A ground plane antenna for 80 meters band

APRS over digimodes including PSK, QPSK and GMSK with digipeating and two way HF internet gateway to the APRS-IS

picture and dimensions of a coax loop antenna centered at 51.490 MHz

The Middle Tennessee Amateur Radio Society is composed of Hams in Middle Tennessee who are dedicated to promoting Amateur Radio, providing public service communications, and having FUN doing so.

Do you need a high gain antenna? Have you suffered on picking up interference from unwanted direction? You need a directional antenna but a 12 element Yagi will be too attractive!

Yagi-logper is a linux GPL program to model a Yagi or Log-periodic antennas with horizontal cylindrical dipoles.

Links to US local emergency service local units

A dual band wire antenna project in Italian

My Version of Wes Hayward W7ZOI / Terry White K7TAU Spectrum Analyzer

ACOM 1000 modification uses electric band switching, such that both 6m and 4m operation can be maintained.

This homebrew six-meter linear amplifier started off life as a "junker" Alpha 76PA h.f. amplfier. Power output is 800W

Contest, Antennas, Rotating Towers, Rotors, Guywires, CoaxHardlines, Specs and more

A microphone preamplifier schematic for hand-helds by ON6MU

RADIOING eEngineer RFI EMI information

Ideal antenna for QRP work, as it has more gain over dipole.

Fox hunting site with details of a PC based DF system

January 1955 QST article by W5DQV about constructing a Cubical Quad antenna for 14MHz PDF File

Mediumwave, shortwave, and amateur bands QSL cards collection

a PREDICT client application written by Vittorio Benvenuti, I3VFJ, allows operation of an ICOM PCR 1000 receiver in a satellite communication environmenta PREDICT client application written by Vittorio Benvenuti, I3VFJ, allows operation of an ICOM PCR 1000 receiver in a satellite communication environmenta PREDICT client application written by Vittorio Benvenuti, I3VFJ, allows operation of an ICOM PCR 1000 receiver in a satellite communication environment

Alan yates vk2zay's ham radio website, homebrew construction, general electronics, high voltage experiments, amateur rocketry, and general geek stuff

Providing quality full color QSL cards for Ham Radio operators.

NetTime is a simple and free software to sync your computer clock via internet. Very useful tool for FT8 FT4 operating modes.

An RF power Amplifier for HF bands with 3 GI-7B tubes by CT1FMS

An affiliate of the Philippine Amateur Radio Association, Inc.

Russian Internet Callbook

FAR Circuits is exclusively a manufacturer of Printed Circuit Boards for electronic projects that are used by the Amateur Radio and electronic hobby enthusias

14MHz SSB 10mW transceiver by JF1OZL

Few recordings of difficult qso's

A magnetic loop antenna for 7 Mhz by ZL1BJQ

The webpage provides information about the Citizen Band mailbox DBO274 in Germany, with HTTP/telnet-access. It covers topics related to CB Radio, Packet and Digital emissions, and eleven meters band.

Ham radio resources about qrp, dx, logging, contesting, includes lots of links to FT817 resources on the web

A homebrew dummy load is usually a combination of several parallel carbon resistors, in order to be able a final resistance of 50 Ohms.

cocoaNEC 2.0 is an opensource Mac OS X application intended primarily for the design and modeling of antennas by Kok Chen, W7AY

Over 47 full-screen maps are available within _NAOMI_ (North American Overlay Mapper), a free Windows program designed for US and Canadian amateur radio enthusiasts. This mapping suite includes 9 backgrounds such as CQ Zones, ITU Zones, and ARRL Sections, along with 16 foreground layers like Counties, Areacodes, and Grid Locators. Users can calculate distances and bearings, track real-time mouse positions with continuous Grid-Locator data, and integrate with APRS for live station tracking via the FindU database. For a global perspective, the _Global Overlay Mapper_ (GOM) provides a world map, 8 continental maps, and 29 sub-continental maps, all with 12 active layers including Country Outlines, CQ/ITU Zones, and Prefix information. Both NAOMI and GOM offer feature-locate systems to jump to positions based on prefixes, capital cities, or Grid Locators, and provide customized beam headings and distance displays. The site also features _LogView_, a post-contest log visualization tool that analyzes Cabrillo-format logs by plotting QSOs on maps, supporting over 30 major contests like CQWW and ARRL DX, and allowing comparison with published results.

This article describes a simple device to generate Roger Beep tones.

WorkedGrids is a Windows application that displays a map showing the amateur radio grid squares contacted and logged in using a third-party logging program. WorkedGrids uses colors to display information on a per-band basis. Up to four bands can be displayed concurrently by VE2ZAZ Bert

Small, but growing, group of amateur radio enthusiasts, most of whom are within 90 miles of Atlanta, are interested in promoting the development of the branch of amateur radio known as QRP - building and operating low power transmitters, receivers and transceivers.

The Construction Principles for Duoband-Yagis 2m/70cm by DK7ZB

qrq is an open source Morse telegraphy trainer which runs on several operating systems (Linux, Unix, OS X and Windows), similar to the classic DOS version of Rufz by DL4MM.

This online article provides a list of individuals who hold or have held amateur radio callsigns, detailing their public recognition. The resource identifies specific callsigns such as **K1JT** (Joe Taylor, Nobel Prize in Physics), **W6OBB** (Art Bell, syndicated radio personality), and **JY1** (King Hussein of Jordan), linking them to their non-amateur achievements. It also notes operational statuses like _Silent Key_ for deceased operators and _lapsed callsign_ for inactive licenses. The article includes information on callsign changes due to vanity callsign programs and provides examples of individuals involved in specific technical areas, such as Percy L. Spencer (**W1GBE**), inventor of the microwave oven, and Jay Kolinsky (**NE2Q**), inventor of electronic sirens. It also references amateur radio involvement in _space missions_ for individuals like Owen Garriot (**W5LFL**) and Helen Sharman (**GB1MIR**). DXZone Focus: Online Article | Famous Hams | Callsign Status | Vanity Callsigns