HAM RADIO SITES LINKS

QRP HomeBuilder
Homebrew amateur radio receivers, transmitters, transceivers and accessories. QRP related.
FRG7 mods
Description of mods for the FRG-7 radio receiver
Repeater Builder's Technical Information Page
Providing information for making amateur and commercial repeaters.
DL4MEA, Guenter Koellner
Homebrew projects, especially VHF/UHF. Includes high power amplifiers.
DUBUS Archives
Technical articles from DUBUS magazine in PDF format. VHF, UHF, and microwave.
SM6LKM
Several projects including a complete 80 meter DSB rig.
I6YPK
Descriptions and pictures of homebrew projects including an all band HF transceiver.
WA6CGR
Mostly microwave projects.
IZ7ATH
Antennas, keyers, amplifiers and equipment for digital modes.
7N3WVM
Many good hints and projects for the homebrewer.
QRP and homebrew by DL2YEO
QRP transceivers, accessories, and related information.
K4GC's Homebrew Amateur Radio Page
Homebrew amateur radio site including tube and solid state transmitters and receivers.
F1FLA - X-Yagis
How to build big X-Yagis for VHF
S57NAN
Homebrew transceivers and other projects.
DSP-10 Project
2-Meter transceiver that can be built at home. Plans.
73 de WD5GNR
Information about homebrew electronics, PC boards, micrcontrollers, Basic Stamps, and all aspects of ham radio. Projects, and tips.
G0UPL Homebrew Radio, Electronics & Computers
Many homebrew projects for Radio, Electronics and Computers including QRP HF Radio, Z80 Computers
Alan Yates VK2ZAY Homebrew Amateur Radio Site
Alan Yates VK2ZAY homebrew amateur radio site, various RF related projects. Updated frequently with new material.
Homebrew General Coverage Radio Receiver
Detailed plans of a homebrew radio receiver. Frequency coverage is from below 300kHz to 30MHz. Pictures, schematics, board layouts, parts lists, and more can all be found here.
Homebrew spectrum anlyzer project.
This is an information page about a spectrum analyzer homebrew project based upon a TV tuner frontend. Much project related information is provided.
TEARA's Amateur Radio Homebrewer's Page
This page is a source for info and parts, used by homebrewers of Amateur Radio equipment and accessories.
CW19 - Homebrew morse code training machine for HAM
A homebrew project. All PCB image, microcontroller code is uploaded and free for download. It utilize an Atmel microcontroller and LCD panel. Easy for construction.
The Spontaflex Reflex Page
The ingenious reflex circuits of Sir Douglas Hall as published in The Radio Constructor
Projects and Software from KØEMT
Home brew projects and free software.
Microcontroller Projects and Software
Details of simple micro controller projects of use to radio hams and reviews of kits that have been built by M0BMN.
Harry's Homebrew
A resource for ham radio and electronics in general. Includes projects, reference documents, and kits.
AM/SSB/FM digital demodulator
Sources and description of a EVM56002 program that demodulate AM,SSB and FM in the digital domain
7 MHz SSB Transceiver
Circuit diagram and description of 7 MHz Ham Radio SSB Transceiver.
HAM Antenna Plans and Projects
Plans, pictures, parts lists for HF, VHF, UHF antennas.
Amateur Radio Construction Projects
Includes a simple CW station, and R1 - R2 DC receivers.
Technical Topics
Forum includes HF/VHF antenna projects, high power Russian GS35B RF amplifiers, mobile RFI solutions, and vintage radios.
Projects for Experimentors
Tools and information for amateur radio, radio astronomy technicians and builders.
Magnetic Loop Antenna Plans
US amateur presents plans on how to build your own Magnetic Loop antenna.
RTTY - FSK/AFSK Interface and Diagrams
How to remove the so called "ground loop" and the reentry in the RTTY broadcast.
DL5NEG
Various receivers, transceivers and converters for HF to UHF.
2-Meter Antenna
All Copper 2 meter / 440 N2RGA Extended Double Zepp Antenna.
HF Projects
Classic HF receivers and electronic constructional projects including a telephone exchange, spectrum analyzer, and homemade TTL computers.
DF9CY
Christoph Petermann with articles on making antennas and equipment.
W8ZR Homebrew Gallery
Jim Garland W8ZR's "homebrew gallery"
Homebrew and Electronics Tutorials
Indonesian amateur offers technical information, projects, manuals and links.
Intelligent Solutions
Amateur radio accessory projects, software, schematics and kits.
Jacob's Ladder Ham Radio
Floyd Everett, inventor of 2-meter amateur radio antenna the 'Jacob's Ladder.'
Crystal Radio and Tubes
Dedicated to crystal and old battery radios, including tube sets. Includes restoration projects and plans.
HAM Projects
Technical information for HF, remote-control and digital decoding devices, plus a CPU-based hardware project.
Psytronix Group
Radio modification and homebrewing information, schematics and manuals for commercial radio equipment and mobile phones.
Spiderbeam
A multiband Yagi for 14.28 MHz. Technical data and a detailed manual in PDF are online. User reports and a kit service are available.
Farhan's Homebrew QRP (VU2FAX)
homebrew transceivers, experiments, DSP
Amateur Radio Homebrewing
A collection of projects and resources for Ham Radio Homebrewing enthusiasts
HB9ABX
Homebrew site with a hf-mobile, magnetic loop antenna and duplexer projects. Also cable datasheets are available.
K5OE
Homebrew antenna site with mainly VHF, UHF and SHF projects.
2 Meter Loop
Page contains pictures and plans for 2 Meter Loop for use on ssb.
VU2UKR Collinear
Online calculator for making a super J collinear antenna designed for the two meter amateurradio band.
Electronic Hobby Information
Oscilloscope test adapters, testing ESR, octopus curve tracers, circuits,and wallwarts.
KD7NRQ
Jason shares information on design and construction of a vintage 813 beam power tube CW crystal transmitter.
Fivehead Kit Weblog
A weblog by G7NBP outlining the construction of the Fivehead SSB transceiver kit.

Construction Projects - Includes a simple CW station, and R1 - R2 DC receivers.
Amateur Radio Homebrewing - A collection of projects and resources for Ham Radio Homebrewing enthusiasts
Crystal Radio and Tubes - Dedicated to crystal and old battery radios, including tube sets. Includes restoration projects and plans.
CW19 - Homebrew morse code training machine for HAM - A homebrew project. All PCB image, microcontroller code is uploaded and free for download. It utilize an Atmel microcontroller and LCD panel. Easy for construction.
73 de WD5GNR - Information about homebrew electronics, PC boards, micrcontrollers, Basic Stamps, and all aspects of ham radio. Projects, and tips.
DF9CY - Christoph Petermann with articles on making antennas and equipment.
DL4MEA, Guenter Koellner - Homebrew projects, especially VHF/UHF. Includes high power amplifiers.
DL5NEG - Various receivers, transceivers and converters for HF to UHF.
DSP-10 Project - 2-Meter transceiver that can be built at home. Plans.
Electronic Hobby Information - Oscilloscope test adapters, testing ESR, octopus curve tracers, circuits,and wallwarts.
Farhan's Homebrew QRP (VU2FAX) - homebrew transceivers, experiments, DSP
F1FLA - X-Yagis - How to build big X-Yagis for VHF
Fox Delta Amateur Radio Projects and Kits - Homebrewing projects and kits such as DDS, frequency counters, LCD power meter, sound card interfaces and more.
G0UPL Homebrew Radio, Electronics & Computers - Many homebrew projects for Radio, Electronics and Computers including QRP HF Radio, Z80 Computers
HAM Antenna Plans and Projects - Plans, pictures, parts lists for HF, VHF, UHF antennas.
HAM Projects - Technical information for HF, remote-control and digital decoding devices, plus a CPU-based hardware project.
Harry's Homebrew - A resource for ham radio and electronics in general. Includes projects, reference documents, and kits.
HB9ABX - Homebrew site with a hf-mobile, magnetic loop antenna and duplexer projects. Also cable datasheets are available.
HDR-2005 - Homebrew DC receiver for approximate 300 kHz to 30 MHz. It is a direct conversion receiver with I/Q quadrature sampling detector. Includes schematics, photos and downloads.
HF Projects - Classic HF receivers and electronic constructional projects including a telephone exchange, spectrum analyzer, and homemade TTL computers.
Homebrew and Electronics Tutorials - Indonesian amateur offers technical information, projects, manuals and links.
Homebrew General Coverage Radio Receiver - Detailed plans of a homebrew radio receiver. Frequency coverage is from below 300kHz to 30MHz. Pictures, schematics, board layouts, parts lists, and more can all be found here.
Homebrew Spectrum Anlyzer Project. - This is an information page about a spectrum analyzer homebrew project based upon a TV tuner frontend. Much project related information is provided.
Intelligent Solutions - Amateur radio accessory projects, software, schematics and kits.
I6YPK - Descriptions and pictures of homebrew projects including an all band HF transceiver.
IZ7ATH - Antennas, keyers, amplifiers and equipment for digital modes.
JF1OZL - A large and varied selection of projects to build. English and Japanese text.
K5DKZ - Offers information about homemade audio amplifiers, RF amplifiers, auxiliary ham radio equipment including antenna designs and constructions.
KD7NRQ - Jason shares information on design and construction of a vintage 813 beam power tube CW crystal transmitter.
K4GC's Homebrew Amateur Radio Page - Homebrew amateur radio site including tube and solid state transmitters and receivers.
K5OE - Homebrew antenna site with mainly VHF, UHF and SHF projects.
Magnetic Loop Antenna Plans - US amateur presents plans on how to build your own Magnetic Loop antenna.
2-Meter Antenna - All Copper 2 meter / 440 N2RGA Extended Double Zepp Antenna.
2 Meter Loop - Page contains pictures and plans for 2 Meter Loop for use on ssb.
7 MHz SSB Transceiver - Circuit diagram and description of 7 MHz Ham Radio SSB Transceiver.
Microcontroller Projects and Software - Details of simple micro controller projects of use to radio hams and reviews of kits that have been built by M0BMN.
7N3WVM - Many good hints and projects for the homebrewer.
Projects and Software from KØEMT - Home brew projects and free software.
Projects for Experimentors - Tools and information for amateur radio, radio astronomy technicians and builders.
Psytronix Group - Radio modification and homebrewing information, schematics and manuals for commercial radio equipment and mobile phones.
QRP and Homebrew by DL2YEO - QRP transceivers, accessories, and related information.
QRP HomeBuilder - Homebrew amateur radio receivers, transmitters, transceivers and accessories. QRP related.
Repeater Builder's Technical Information Page - Providing information for making amateur and commercial repeaters.
RTTY - FSK/AFSK Interface and Diagrams - How to remove the so called "ground loop" and the reentry in the RTTY broadcast.
SM6LKM - Several projects including a complete 80 meter DSB rig.
S57NAN - Homebrew transceivers and other projects.
Spiderbeam - A multiband Yagi for 14.28 MHz. Technical data and a detailed manual in PDF are online. User reports and a kit service are available.
The Spontaflex Reflex Page - The ingenious reflex circuits of Sir Douglas Hall as published in The Radio Constructor
TEARA's Amateur Radio Homebrewer's Page - This page is a source for info and parts, used by homebrewers of Amateur Radio equipment and accessories.
Technical Topics - Forum includes HF/VHF antenna projects, high power Russian GS35B RF amplifiers, mobile RFI solutions, and vintage radios.
VE1KE - Offers information about the Jacobs Ladder, a portable 2 meter band amateur radio antenna.
VK2ZAY.net - Site from Alan Yates, VK2ZAY, with his personal homebrew amateur radio projects.
VU2UKR Collinear - Online calculator for making a super J collinear antenna designed for the two meter amateurradio band.
WA6CGR - Mostly microwave projects.
W8ZR Homebrew Gallery - Jim Garland W8ZR's "homebrew gallery"
Yahoo RFamplifiers Group - A forum for the exchange of how-to information about homebrewing RF power amplifiers for ham radio use, or for repairing and modifying boatanchor versions of same.

ARRL Country Code List - Official list of Ham call sign prefixes for all countries. Those participating in DX contests will also need the listed ITU and CQ magazine numbers for the various zones and regions.
The Art and Skill of Radio Telegraphy - Download site for a manual on learning, using, mastering and enjoying the International Morse code as a means of communication.
A Beginner's Guide to Making CW Contacts - How to start a CW or Morse Code conversation, what to talk about, the pleasure and art of CW.
Canadian Railway Telegraph History - History on Morse code, telegraphy, and semaphores.
CT1EFL - Dedicated to high speed CW.
FISTS CW Club Code - Improve your CW ability or volunteer to help others as an on the air CW Elmer or student.
The International Morse Preservation Society - News, contacts, membership details, and information for all Morse code users and fans.
K3WWP's Ham Radio Activities - Devoted to Morse Code operation with QRP, much good reference material.
Manchester Wireless Society - A club that teaches morse for free. 5 - 12 wpm standard to get members through the test.
Morse Code and Phonetic Alphabets - Includes Java and CGI translators, alphabets, and FAQs.
Morse Code Development - Code information and assistance to help develop CW skills. [Download required to participate]
Morse Telegraph Club - Dedicated to preserving the history of telegraphy, with forums to discuss historic usage as well as modern applications.
PA3BWK's Ultimate Morse Code - High Speed Clubs for various transmission rates. Comics, humor, common abbreviations, and software links.
Passing the Morse Code Test - A comprehensive description of what a ARRL Element 1 Morse code test is like in the US. A description of the test format and example questions is included.
Phonetic Alphabets, Historic, English & Others. - Telegraph and radio abbreviations, 100 phonetic alphabets, and 20 Morse code mnemonics. Book available.
Telegraphy Friends Club - Information for active CW radio operators. Features club information and awards.

Amateur Television Network - Amateur Television information for California, Nevada and Arizona.
ATCO ATV - Meeting dates, repeater frequencies, technical data summary, and transmitter information. Located in Columbus, Ohio.
ATV team Slovenia - Live feeds from amateur television stations worldwide.
ATV Transmitter - Italian amateur shares his ATV projects, downloads and ATV news. [English - Italian]
D-ATV - Dutch-based resource for DATV information, including technical data, projects, and publications.
G1LWX - UK-based ATV station. Features station information, photos, video clips and links.
K4IBC - Weather ATV Repeater project with pictures, schematic block diagrams, and parts supplier listings by Bill Bennett
4N7ATV - 1.2GHz in-band multimedia Amateur Television Repeater. Includes station and ATV information and links.
PE1DWG - Netherlands-based ATV amateur presents station information, ATV projects, photos and links.
Research Triangle Amateur Television Association - North Carolina-based club resource with contact information, repeater frequencies, and photos.
Society of Ether Explorers - Includes reception and beacon information. Located in San Francisco, California.
Ham Radio and More Digital Topics Radio Show - RealAudio archives of talk radio covering a variety of ham radio mode topics.
Hoka Electronics - Information about a specialist range of standalone, DOS and Windows HF and VHF radio digital signals analysis and decoding equipment.
Official PSK31 Site - A new digital mode useful for keyboard to keyboard QSOs. Works at 31.25 bauds. Easy to use and monitor. Gives very good copy under poor SNR and is thus suitable for QRP. Uses BPSK or QPSK.
Packet Radio Resource Page - Provides a source for information and links to other sites related to various Digital Modes for Amateur Radio.
RTTY Fan Club - Everything about HF digital modes. Operating, contesting, software, hardware, DX information and bulletins, clubs, societies, and links.

AF9Y - Information on Earth-Moon-Earth communications and software to provide DSP reception of weak signals.
Alexander The Great Award - Complete information for DX'ers, including prefix and QSL information, and online application.
Amateur Radio & DX Reference Guide (AC6V) - Features 80+ pages and 3000+ links covering 400+ ham radio and DX topics.
Amateur Radio DXpeditions - Description of Amateur Radio expeditions to remote areas with photos and logs. Also features polls and sources for QSL cards.
Amateur Radio Lighthouse Society (ARLHS) - Dedicated to ham radio expeditions and DX events to lighthouses around the world.
ARRL Sixth District QSL Bureau - Information on the ARRL Sixth District QSL Bureau.
Bavarian Contest Club - Amateur radio DX and Contest Club in Bavaria, Germany; contesting related software and hardware projects and tips.
Bouvet Island 3Y0C - Bouvet Island Dxpedition 2000-2001 Operated by Chuck Brady N4BQW under the callsign 3Y0C.
Central Arizona DX Association - A group of ham radio operators in the Phoenix area whose primary interest is in DXing.
Cheshire County DX Amateur Radio Club - Located in Cheshire County, New Hampshire and includes newsletters, calendar, and repeater information.
Contesting.com Mailing List FAQ Page - Provides available lists and frequently asked questions on how to subscribe. Offers links to contests, and classifieds.
Delta DX Association - Includes an introduction to DXing, contest calendar, and meeting schedule. Located in New Orleans, Louisiana.
DL2GG/YV5 - Compilation of several DXpeditions to Venezuelan Islands in the Caribbean Sea. Features a large collection of photos.
DL6KAC - Information about DXpeditions to Mallorca (EA6) and contest trips to Liechtenstein (HB0). Also includes log searches and pictures.
DX Summit - DX spots and propagation information.
DX-Awards - A Resource for the Ham Radio Awards Hunter.
DX-Central - Provides information on DX news and complete access to the DX packet cluster system.
DXer - Amateur radio, DX and contest information.
425DXnews - The Italian web site for serious DXers.
DXpedition Map - Interactive map and listing of upcoming ham radio DXpeditions, plus downloads and amateur radio information.
DxQslNet - Dedicated to amateur radio DXing.
The DXSpider Home Site - This site is the home site for the DXSpider DX Cluster software for linux and perl. It is actively being developed and is Open Source (and thus free)
Dxspots.com N5IN AR-Cluster - Worldwide DX spots and WWV solar activity announcements.
EA3QP Ham Web - Amateur radio web, devoted to SSB audio, QSL information, clusters, ITV, and useful links to another HAM webs.
East Tennessee DX Association - Club resource featuring membership information, club activities, contest logs, and links.
The EIDX Network - Ham radio DXing news, audio clips, and resources.
The Electronic QSL Card Centre - Design and receive your own eQSL card online.
Fort Wayne DX Association - Dedicated to Amateur Radio DX'ing.
GB5HQ IARU Contest Team - International competition. Resource features club and contest information, photos and links.
GoList QSL Manager - The oldest and most accurate QSL manager database.
The G6YB Bristol Contest Group - Amateur Radio contesting group in the Southwest of England.
Ham Radio Maps - Free prefix location, DX heading maps, prefix heading lists for many U.S. and foreign locations. DX beacon ID software. Free uploads and downloads.
Hawaii DX Association - Club information, membership application, and roster.
Heartland DX Association - Includes meeting information, DX propagation reports, and club news. Serves eastern Nebraska and western Iowa.
HF Propagation Primer - A Flash movie describing the basics of HF (short-wave) radio propagation across the globe. With text and animation.
HF Radio World-Wide - Dedicated to the art and science, and pleasure of amateur radio with a variety of resources available.
Hickory Withe DX Club - Information on contesting and station building activities of the Hickory Withe DX Club, concentrating on antennas.
High Desert DX Association - List officers and members, information about Field Day, membership information, news and links.
9H3MR - 9H3LEO DXpedition - Photo gallery, QSO statistics, log search and QSL cards of the 9H3MR and 9H3LEO DXpedition to Gozo Island.
Hoosier DX and Contest Club - An Indianapolis club specializing in working contests, chasing worldwide DX, and supporting DXpeditions.
I5JVA Home Page - Antenna farm near Florence, Italy.
IK3QAR - Includes QSL manager and information, IOTA, log search, and tips and schemes for RTTY.
10-10 International - 10-meter worldwide amateur group offers club and membership information, news, forums, activities, awards and links.
JF9EXF's Ham Maps - Ham radio world maps.
KA9FOX - Includes operating tips, contest scores and rules, QSL info, callsign look-ups, and DX Packetclusters for contesters and DX'ers.
KB9AMG - List of the top DX spots and spotters from the past year.
K3UOC - Dedicated to the many DX-peditions and contest operations carried out over the past 20 years.
K4ZXN Ham Radio - Website for K4ZXN. A vanity call sign formerly held by Jesse Rhue.
Lima Delta International Dx Group - Northern Italian DX group with information on awards and other DX related subjects.
LoTW - Yahoo-based discussion group provides a forum for LoTW (Logbook of The World) users to get technical help.
LZ Open Contest Official Web Site - Rules and Results of the LZ open contest.
9M2/G4ZFE - IOTA - Stories about contesting and IOTA trips from Malaysia. Create your own on-line logbook. Includes SQL as well as audio clips from contests.
Michigan DX Association - Offers DX-pedition and contest information, band condition panel and BBS with future events and meeting schedules.
NG3K Amateur Radio Contest/DX Page - Resources for contesting and DX.
N6HB: Real-Time Maps and Charts - Real-time maps and charts for the radio amateur.
N6HB: The DX Years - Many DX QSL tips, plus the definitive listing of DXpeditions and cards handled by N6HB.
North Jersey DX Association - Morris Plains, New Jersey; newsletter and member information, technical information, events schedule.
Northern Greece Contest Team - DX awards program and contesting information, DXCC, and regional links.
OH0 and OJ0 N4GN DX Expedition - N4GN based in Louisville, Kentucky provides information on expedition to Aland Islands and Market Reef sponsored by DX Foundation. Includes log databases.
The OPDX Bulletin - Internet Edition - Provides information on receiving The Northern Ohio DX Association bulletins now available through webpage. Includes archived bulletins.
Pitcairn DXpedition - Three-month long DXpedition by Jukka Heikinheimo OH2BR to the most remote inhabited island.
Propagation Logger - Real-time spotting of contacts on the web
QSL Gallery - Upload and view your QSL card, and others from around the world.
QSLs On The Web - Links to more than 400 QSL galleries.
Radio Worldwide on Shortwave - World wide broadcasting on shortwave for DXers and radio listeners.
radiocontesting.net - Home of Radio Contesting! - radio contesters site - scores database, contester chat, forums, real-time posting and news
RF Amplifier Mailing List Archives - Provides archived lists of message forum posts sorted by month and year. Features information on radio contesting.
RXO Unitenna - Broad bandwidth HF vertical antenna - covering 3:1 frequency range. [PDF document]
Simeulue DXpedition 2006 - Official resource for the YE6P Simeulue DXPedition 2006 in Indonesia. April 10 - 16, 2006. Includes schedule and contact information.
SkyWave Technologies Homepage - This site provides information useful for the Amateur Radio operator. A software download of the IONSOUND HDX propagation prediction program is available free of charge from SkyWave Technologies developer W1FM.
Solar and Terrestial Resource Site - Solar and Terrestial information (live, and historic), used for Radio Science, Earth Science, and related fields. Site focus over all is for Amateur Radio and Shortwave Listening.
South Flanders DX Activity Group - Belgian-based resource includes club and membership information, chat, and photos.
South Florida DX Association - Includes membership roster, photo gallery, and contest information. Located in Ft. Lauderdale.
Southeastern DX Club - Includes operating frequencies, logos, and information about the Georgia QSO Party. Also specializes in packet radio. Located in Atlanta, Georgia.
TEARA's DX Support - Callsign locations, QSL route information, and callsign search pages.
140URA - Ukrainian CB radio station in Antarctica.
WB5GMK's DX Homepage - Information for the radio amateur interested in dxing, sstv, digital, contesting, and general amateur radio activities.
W9DC Island and Lighthouse Award Resource - W9DC Resource for Amateur Radio Island, IOTA and World Lighthouse Award by North American Checkpoint.
Western Washington DX Club - Events schedule, member and contact information.
World Amateurs Club - W.A.C. DX-Group. Membership information and news.
World Radiosport Team Championship - Provides final results of Slovenia Contest held in 2000. Includes links to comments, and log.
W1WC Amateur Radio Site - Operating tips, information, audio clips, and links.
W7WK Ham Radio - Steve displays his QSL cards from many DX contacts, links to Dxpedition sites, log searches and DX callbooks to find worldwide addresses.
XU7ACT - UX7ACU DXpedition - Cambodian DX contest in August 2003. Complete pre and post-event information and results.
Yankee Clipper Contest Club - A library of amateur radio contest and DX information.
YE7P Karimata DXPedition - DXpedition to Marimata in Indonesia. Includes team bios and QSL information.
ZR1DQ Deon Erwin - Infoline - Complete details on Bouvet Island 3Y0C, Elephant's Rock Island ZS31ER and Botswana A22DX.

APRS DB0ANF - German access to an online station database. Includes APRS activity in Germany.
APRS Florida - Server and repeater information, live Central Florida lightning and weather data.
APRS in Switzerland - Provides information on APRS in Switzerland, maps and NEW:javAPRS live from HB9.
APRSearch - Search engine focused on sites of documentation related to Automatic Position Reporting System (APRS).
APRS-IS Information - Resource for javAPRS, javAPRSSrvr, and the APRS weather server.
Bavarian Packet Radio Group - Develops Hardware and Software.
Byonics - Kits for GPS/APRS.
CX2SA Radio - Packet, APRS, DC cluster and frequency information, downloads and links.
FBB - Bulletin board software for amateur packet-radio.
FlexNet - Casual developers of software for Amateur Packet-Radio.
G4JKQ Amateur radio quicklinks page - G4JKQ Amateur radio quicklinks page with a fast link to the main site which contains great links page with over 80 very interesting radio related sites. Also a quick link to the G4JKQ TCP/IP Worldwide Packet radio listings page.
Holyhead_cq - Holyhead's amateur radio website with interests in packet radio and computing, also some local history information.
Introduction to APRS and UI-View - An overview of APRS packet radio and an introduction to using UI-View and add-on software.
javAPRS - Java Applet for Automatic Position Reporting System.
K4ABT's Packet Radio Information - Links to diagrams, products to buy, and tips and techniques.
MM Hamsoft - MMTTY -RTTY and MMSSTV SSTV freeware software.
NordLink - Develops software under the German hamradio license. Amateurs, digipeaters, and FTP downloads available.
Northern California Packet Association (NCPA) - amateur packet radio club for northern California area
OpenAPRS - Provides real-time APRS data in and around Napa, California.
Packet Radio on Linux Systems - How to set up packet radio on a Linux platform. Includes source files and photography.
Paxon: the Packet Radio terminal programm - Paxon - The new Packet Radio terminal programm for Windows. Supports WA8DED-Hostmode and PC/FlexNet devices.
pcboard.ca - Canadian APRS system with Ontario and Canada APRS maps. Includes product details, downloads, data sheets and an order form.
Research Triangle-Area Packet Radio - North Carolina megaplex Packet resource for frequencies, nets, logs, listings, and local packet radio information.
Southern Oregon Amateur Packet Radio Association - Promoting packet in the mountainous region of Southern Oregon and Northern California.
S51RM - S53RM - Information resource for S5-PSK 1.2 Mbps BPSK packet radio station for 23 and 13cm (and 9cm), S5-70WB FM packet radio station for 70cm band and 19k2 to 76k8 bps, S5-PCC - packet communication card.
TH-D7 Informational Page - Includes information on modifications, accessories, and operation of Kenwood's TH-D7 radio, a new packet-ready and GPS capable HT (TNC included).
78thFLOOR - Rtty, cw, Pactor, Packet, SSTV, QRP and projects.
Tucson Amateur Packet Radio (TAPR) - TAPR is an international non-profit educational research and development organization focused on the issues of amateur radio wireless digital communications.
UI-View32 Windows APRS Client - Complete information on open-architecture, intelligent digi-peater and IGate. Works with TNCs in terminal mode, KISS mode, AGWPE and BPQ. Many map options.
Utah Contest Club NC7J DX Packet Cluster Site - Dx packet cluster also many links to amateur radio products
Wicklow DX-Cluster - Packet DX-Cluster club in Bray County, Wicklow, Ireland.
W9ICU - Packet APRS operator presents station and amateur information and links.

Australian QRP - QRP from the land down under!
Contest Calendar - Courtesy of the New Jersey QRP Club
Ham Radio Circuits - Circuit diagrams of Ham Radio equipment, including 7 MHz SSB Transceiver, AM, FM, DSB transmitters, FSM, Dummy load, Antenna, and filters.
40M QRP CW Transmitter - Information, schematics, photos and technical information.
QRP Amateur Radio Web Ring - Links to QRP web sites.
QRP Citations and Links - Introductional citations and information about QRP and PSK31.
QRP World - Tips and information on kits, antennas, and home brew QRP projects.


Homing In - All about hidden transmitter hunting and radio direction finding for radio amateurs. Links, and local contacts to help find RDF activities in your area.
Amateur Radio Direction Finding Web Ring - Group for enthusiasts of Radio Direction Finding.
ARDF Holland - Amateur Radio Direction Finding - Amateur Radio Direction Finding in the Netherlands, all about foxhunting
BMG Engineering - Former supplier of the SuperDF. Tutorials and projects.
Build your own DF unit - Building your doppler, pictures and instructions.
70 cm RDF for rockets - Describes a system on 70 cm freqencies to track and locate small rockets.
Hidden Transmitter Hunting - Pictures and plans for antennas, attenuators, aniffers, hiding equipment, and accessories.
NoBarc Hounds Amateur Radio Tansmitter hunters - Radio Direction finding for sport and emergencies.
N6QAB's Radio Direction Finding Web Page - Pictures and descriptions of Radio Direction Finding and Transmitter Hunting equipment.
Radio Orienteering in a Compact Area - On foot radio-orienteering, rules, projects, and event reports.
Radio Direction Finding Projects - A collection of useful and interesting projects for the RDF enthusiast by Joe Leggio, WB2HOL
RDF Fox Hunting Home Brew Projects - Download free project plans for radio direction finders and locators.
Transmitter Hunting - Amateur radio direction finding, transmitter hunting, by triangulating a radio signals direction and plotting its bearing on a map. Hunters use Dopplers for tracking hidden transmitters anywhere in the San Francisco Bay Area.
VK3ZPF WEB SITE - VK3ZPF's amateur radio web pages including foxhunt projects
WB6EYV Doppler DF - Describes a homebuilt mobile Doppler D/F unit, with theory, schematics, parts list, and all PC artwork.
W8EH - Mobile Fox Hunting, Projects & Pictures - Fox hunting announcements, equipment, projects and links. Polar II setup information. Icom 706 mkII external S-meter installation. Pictures and antenna designs.

Northern Lights Software Associates - Nova for Windows tracks an unlimited number of satellites in real time.
Amateur Radio Satellite Tracking 2003 - Portal site listing a wide variety of information related to satellite tracking, including satellite list and news.
AMSAT - Information regarding amateur radio satellite communications. Also available are Keplerian elements in several formats, updated weekly.
AO-10 - Information about AO-10, including status updates on a periodic basis.
CelesTrak - Keplerian elements for most satellites in low-earth orbit. Also includes historical archives dating back to 1980 and information about satellite tracking.
Clarke Belt Calculator - Given a file with satellites' Two-Line Element (TLE) you can calculate a list with the azimuth, elevation and range for any point on earth.
FODtrack Satellite Tracking Interface - Construction tips to build a amateur radio satellite tracking dual-axis rotor controller using a PIC16F877 IC.
G-Predict - Free, real-time satellite tracking and orbit prediction software.
Heavens Above - Real-time satellite, ISS, and Space Shuttle orbital pass information, maps, star and charts.
LogSat - Advanced software, with features including antenna radiation maps for optimal satellite coverage.
MSFC: Real-time Satellite Tracking - Two-dimensional and three-dimensional applets showing the positions of over 700 satellites. Also includes a sighting guide and public-use images of the whereabouts of several popular satellites.
Orbitron - Satellite Tracking System - Shows positions of satellites at any given moment in real or simulated time. Free download (Cardware). [multi-language]
P3D Article by KA0SNL - Discusses main design goal of making satellite operations less complex and less expensive for operator on the ground. Includes photographs.
Project Oscar - International amateur satellite organization - web site contains info about amateur satellites, operating information, status of individual satellites and an online tracking application.
Real-time ISS Shuttle Data - NASA information on the International Space Station's whereabouts, Keplerian elements for the ISS and Shuttle, and sighting prediction information.
Safety Track - Global Positioning System for law enforcement, private and commercial users to track vehicles. Complete information, plus a demo.
Satellite Frequency Guide - A tabular guide to amateur radio satellite frequencies.
Satellite Index Project - Graphical and real-time information on satellite locations.
Satellite Tracking Prediction Form - Satellite tracking pass predictions includes by state listings, and related resources.
SatScape - Windows tracking software; features include 3D maps and can track several hundred satellites simultaneously.
SatSignal & WXtrack - Satellite tracking and decoding software, including WXtrack, WXtrackGL, SatSignal, GeoSatSignal, and the HRPT Reader is available for download.
Southern Africa Amateur Radio Satellite Association - Resource includes visual and RF satellite contact schedules. [English]
Timestep Weather Satellite Systems - Hardware/software products to receive data from weather satellites, for the amateur radio enthusiast
UK Satellite Feeds - Satellite feeds, listings, and free channels across Europe.
WinOrbit Home Page - Free satellite tracking software for Windows 3.x.
G8SLB SSTV - Amateur Radio interfaces for SSTV and Packet Radio PC and Amiga.
G3ZJO - Information on SSTV, FSTV, and homebrew amateur television equipment.
Mscan Meteo SSTV - Mscan SSTV software to receive and transmit SSTV.
N8GCD - Help for SSTV beginners. Includes history, troubleshooting information, and links.

Amateur radio propagation studies - Science, research, engineering, operating; 50 MHz, 144 MHz, Sporadic-E, Aurora, FAI, EME, the 'BeamFinder' analysis software by DF5AI.
VHF Weak Signal Solutions by SM5BSZ - Designing and building equipment for VHF long distance communication by SM5BSZ, founder of famous Linux Based VHF Radio
An Amateur Radio miscellany at G1OGY.com - Activities and interests of G1OGY; V/U/SHF Contesting and associated projects.
Amateur Radio Repeater Websearch - Database collection from plain text and repeater listings over the internet.
Amateur Radio Satellite Activity by KH6RH - My logbook of current amateur radio satellite activity, along with 50 mhz activity and satellite antenna projects from Hawaii.
Azimuthal Equidistant Projection - Online map creation using AZ_PROJ v1.1.6.
Calicut Radio Society - Live propagation and VHF repeater information in India.
CN2DX - VHF activity from Kingdom of Morocco - Activity VHF from Morocco, CN2DX aka HB9HLM
CQdx Dutch Hamsite - CQDX Dutch Hamsite with MUF-Info, Hamstart, and Hamsale. Origin: Netherlands
DF9IC - German VHF - UHF operator presents operational and technical information, map grids and photos.
DF6NA - Special emphasis on VHF/UHF/SHF, EME, Meteor-Scatter, Rain-Scatter, Aurora, 10GHz, 24GHz.
DG5CST - Sebastian Schumann includes station equipment information and a log search.
DK5YA VHF: The World of DX Above 50 Mhz - 50 and 144 Mhz news, Aurora information, clubs and groups, moonbouncing, expeditions, hardware, forum, meteorscatter, satellites, software, solar and tropo weather news.
EI5FK's VHF Ham Radio Website - Ham Amateur radio of EI5FK in Ireland, 60 foot tilt over tower construction, profiles of other Irish amateurs, Meteor scatter and more VHF information Who is "active" on VHF in EI, Solar Auroral and Tropo information, Vhf logs and maps, Vhf links in EI and elsewhere, meteor scatter information, and panoramic views.
EI4IX's VHF Website - Dedicated to 50MHz and 144MHz in EI. Real audio clips of Aurora,Tropo,Meteor Scatter,F2,Sporadic E and TEP propagation.Search Online logs.
The Four Metres Web Site - Information about the 4m or 70MHz band. This band is allocated in the UK, ZB2, 5B4 and S5 and is also good for cross band to 6m.
G0AFH - UK amateur shares station and personal information, travel photography, and local links.
G0GJV - Author of VHF contest logging software. Intended for the British RSGB VHF contest rules, but may be useful elsewhere.
GM-23 Scotland 1296 MHz scene - A resource centre linked to the GM-23 group of 23cm enthusiasts based in Scotland and the Northern half of the UK.
GM4JJJ - David Anderson with EME on 144 MHz and Astronomy. MoonSked Software for Moontracking for Macintosh, Windows and Palm Pilot.
G3PHO Amateur Radio Station - Peter Day, Sheffield, England station guide to microwaves features articles, league tables, and microwavers' email list.
G4RRA Web Pages - G4RRAs VHF/UHF Site, station details and information
G0RUZ VHF, UHF & SHF DX - Provides weak-signal DX information on 50,144,432 and 1296 Mhz. Includes propagation, antennas, tube data and construction tips, and photographs.
G3UTS - Reg Belshaw provides a brief description of his equipment and photographs of his shack in the UK.
G4YYB - Amateur Radio And Internet Linking
Ham Radio USA - VHF/UHF mailing list, district 7 Skywarn for Northeast Tennessee, and links. Free downloads.
HB9CAU Transponder - HB9MPU Transponder and Beacons. The complex at HB9MPU (JN47HD, 1000m ASL) consists of a set of microwave beacons and a very sophisticated transponder system in Switzerland.
HB9G RV58 Repeater French-Swiss Radio Amateur - French-Swiss Radio Amateur Repeater, located in Switzerland, at 1628 meters. Frequency 145725 Mhz VHF
Howard Ling - G4CCH - News of latest radio activity, initial contacts list, recordings of EME signals, information about station, and overview of latest projects. From near Lincoln, UK.
I3LGP home page - Description of Giulianos VHF activity.
IRLP Node 8200 - Tokyo, Japan - Technical information and photographs of the first IRLP node in Asia.
Jeff Luce - K2EHF - Member of the Rochester VHF Group and currently on 6m, 2m, 70cm FM, 23cm, 3cm (10GHz), 1.25cm (24GHz) and Laser. Includes information about standings, microwave resources and band plans.
KE4HTM - Lists calling frequencies for the different modes on the Amateur VHF - UHF bands
KH6FOO - Features Hawaii-Californian Tropo ducting reports and bulletins issued in 1999. Includes a graph and a list of TV stations in Hilo.
K3PGP Experimenter's Corner - Covers experimental work from VLF through laser by K3PGP, one of the EME pioneers.
K1UHF - K1UHF VHF an above weak siganl site.
LA0BY, Stefan from Norway - VHF from Scandinavia, EME, Tropo, Aurora and expeditions.
LNA Technologies - Preamps: low noise preamps; cavity preamps; power dividers.
49MHz Hobbyists Reflector - An email reflector and website for radio amateurs who enjoy or are interested in the unlicensed 49MHz QRP band.
My VHF by KG4BMH - Weak signal and contesting on 144mhz. With contest rumoured scores and soapbox.
ND2X - QRO via Russia + Mobile Ops - Data about surplus Russian tubes and examples of PA's which use them from HAMs around the world. Also, depiction of my personal (primarily) VHF mobile station/operations.
New York City Repeater Directory - 144/220/440 MHz repeater directory centered on New York City
NF2G Scannist Pages - Upstate NY - Scannist Pages for Upstate NY
OH8K Radio Club - Tales about ARC OH8K's MS-peditions to rare and semi-rare grids in the Northern part of Finland. See antennas, towers and equipment at KP44HE in Sotkamo.
OH5RAC and OH5SHF beacons - Description of 28, 50, 432 and 1296 MHz beacons in KP30HV with photos of equipment and antennas, etc.
OM7AQ VHF and UHF pages - VHF, UHF,satellites, EME - ants, coax. cable datas, LNA, and PA.
OM3RKP Radio Club - Poprad, Slovakia-based group of VHS enthusiasts. Features VHF and DX information, contest results, newsletter, photos and stories.
ON1CAU - A great page for space OP's
Online VHF-DX Database - Online VHF-DX Database with information on more than 43000 members.
OZ9AAR - EME, Amplifiers and projects by Carsten, OZ9AAR
OZ1ALS - Homepage of radio club oz1als, contest results, and pictures.
OZ1IEP Denmark - Amateur radio operator profile and information on VHF/UHF contest, DX, log of activities, and contacts.
OZ1RH homepage - Troposcatter, 50 MHz meteor scatter, ground gain for eme, radiation angle: OZ1RH homepage.
OZ4VV's VHF Dx`ers Website - News - Links - Scandinavian Chatpage - Top Lists. All about VHF dxing from Scandinavia by OZ4VV.
PA3CEG - Different topics, pictures, and constructions from 144 Hz up to 76 GHz.
PA0CIS VHF-Homepage from the Netherlands - Its mainly dedicated to VHF equipment. You will find schematics and pictures of various VHF amplifiers
PA3CSG - Features projects with descriptions and photographs of VHS/UHF equipment.
PE1OGF - John's New VHF Home Page
Practical Wireless 144MHz QRP Contest - This contest, with a 3W power limit, is held in the UK every June. Here are rules, results, stationery, online entry submission and other info.
QEX: Forum for Communications Experimenters - The purpose of QEX is to: 1) provide a medium for the exchange of ideas and information among Amateur Radio experimenters 2) document advanced technical work in the Amateur Radio field, and 3) support efforts to advance the state of the Amateur Radio art.
RepeaterLink - user-updated database search for Linked & Stand alone Repeaters by area, and Repeater Systems that Link two cities together
RMCWEB - Information on the UK amateur radio repeater networks.
S55AW Home Page - Meteorscatter, Tropo, Es
Space Environment Laboratory - NOAA's Radio Users' Page
SV1BSX's Web page - VHF - Homebrewing, VHF Live Cluster, Antennas VHF, AO-40 satellite pages
TK5JJ - JJ Filippi - Ajaccio - EME, MS, and Tropo from the island of Corsica.
Todd Emslie's TV FM DX page - Australian page featuring 45-108 MHz VHF DX via Es, multi-hop sporadic E, TEP, and F2 propagation.
Toplist 50MHz - 241GHz - Toplist for UHF/VHF 50MHz to 241GHz, worked grids, DXCC, WAS, and EME initial Toplists.
USA VHF/UHF Standings - VHF/UHF/Microwave/EME Standings, a Who's Who on top in USA
VA3RR - VHF from Canada
VE2PIJ VHF & weak signal site - Grid Square List, VHF - UHF Contest Calendar, Rules, Results, Forms, Certificates, Log
VHF UHF Contesters - W9ICE Indianapolis Carmel Experimenters. VHF UHF contest group from EN60.
VHF & UHF QRP operation - Contains 2m, 70cm and 23cm logs, PIC guidance and details of Sheffield's sewer gas destructor lamps.
VHF AND UP - by IW9CER and IT9IPQ, vy fine
VHF in Ireland - Lots of EI related VHF information. Also includes an EI callbook, EI e-mail listings, and EI web sites.
VHF UHF Amateur Radio Website by VE3DSS - VE3DSS Website - VHF UHF Propagation Information for VUCC and WAS Awards. Information for Canadians, VE3ONT history, audio clips of VHF UHF Signals on six metres and above. VE3VHF links.
VHF/SHF Amplifier Manufacturer - Amateur Radio Solidstate Amplifiers for VHF - SHF by G8MBI and F5FLN. 10GHz Solidstate amplifiers 144MHz High Power Solidstate amplifiers.
VK5KK - Features David Minchin's photo album, microwave links, and Australian tropo and weather data.
WA1MBA - Devoted to Amateur Radio Microwaves, including the microwave reflector, rainscatter, and various information. Primarily for 903 MHz and above.
WB8ERJ - Amateur SSTV from MIR, a 2 meter antenna for bicycles, working the AO-27 satellite portable, and photographs.
WB2REM I-Link Boards - WB2REM-G4CDY I-LINK Boards are available through this site. Provides information about I-Link including help files.
Web-Cluster - OH2BUA Web Cluster 144 MHz
WG3E/VHF Test Contest Program - Offers freeware DOS-based VHF contesting program for rover and single-op classes that runs on very low-end PC hardware. Includes screen-capture program tour and scores and photos from users of the software.
W3SE Home Page - HF/UHF/VHF, Weak Signal, HSMS, DXing, Contesting, VE Testing