1996 - 2016
BSEE - KB3UON
RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The Internet was still largely an unknown entity at the time and not much was available in the form of WYSIWYG ...
All trademarks, copyrights, patents, and other rights of ownership to images and text used on the RF Cafe website are hereby acknowledged.
My Hobby Website:
It is an undeniable maxim that when a field of study is adopted by hobbyists, the rate of progress accelerates significantly. Not many examples are as obvious as with amateur radio (Ham) enthusiasts. I have had the honor of working with many top-notch engineers and technicians in my nearly 30 years in electronics, and without a doubt, a lot of the very best were Hams. That is not to say there are not any top-notch electrical engineers that do not indulge in the hobby, there are. The difference is that the Ham radio guys typically exhibit an enthusiasm that is not so overtly apparent in the non-Hams. Where the Amateur radio folks typically shine is when they are in positions that do not normally require a talent for RF knowledge. Whether that be as a project manager, a mechanical engineer, or software guy, one more than one occasion I have seen one of them throw out an idea during a brainstorming session that saved the moment. My hat is off to them.
Full amateur radio resource and links to radio electronics, astronomy, science, math, and much more.
73 Amateur Radio Today | rrsta.com/hth
Ham to Ham Column spanning amateur radio operating tips, technical ideas & suggestions, computer related tips, shop & shack shortcuts, troubleshooting techniques, & other related topics helpful to fellow hams in the pursuit of their hobby.
Air Force MARS | afmars.org
U.S. Air Force Military Affiliate Radio System. The program consists of licensed amateur radio operators who are interested in military communications.
Amateur Radio Banner Exchange | cq-cq.com/bp
Amateur radio banner ads exchange.
Amateur Radio Page | lea.hamradio.si/~s57nan/ham_radio
S56AL (ex S57NAN), by Aleksander Stare.
Amateur Radio Pages, United Kingdom | g6dpp.com
G6DPP David's Home pages.
Amateur Radio Research and Development Corporation (AMRAD)
Develop skills and knowledge in radio and electronic technology, advocate design of experimental equipment and techniques, promote basic and applied research, organize technical forums and symposiums, collect and disseminate technical information and provide repeaters.
Amateur Television Quarterly (ATVQ) | atvquarterly.com
Quarterly publication about amateur television and SSTV with construction articles, local activity, ATV repeater information, building of antennas, RF filters, helium balloons and R/C models with ATV and more.
Amateur Radio World Ring | g6dpp.com/worldring/world_ring.html
Linking radio ham sites from all round the world.
American National Standards Institute (ANSI)
Administers and coordinates the U.S. voluntary standardization and conformity assessment system.
American Radio Relay
League | arrl.org
ARRL - Here's your invitation to a friendly, high-tech hobby that's got something fun for everyone! You can become an Amateur Radio operator. People from all walks of life pass their entry-level exam and earn their Amateur (ham) Radio license. They all share the diverse world of activities you can explore with ham radio.
AMSAT (Radio Amateur Satellite Corp) | amsat.org
North American branch of the international amateur radio satellite community.
AntennX | antennex.com
Antenna eXperimentation online magazine serving the business of communications throughout the globe. Ham operators endeavor to make contact with others around the world & antenneX© provides a central place for everyone to readily discuss their experiences with problems and/or successes in this field of radio signals.
Army MARS | asc.army.mil/mars
U.S. Army Military Affiliate Radio System. The program consists of licensed amateur radio operators who are interested in military communications on a local, national, and international basis as an adjunct to normal communications.
Associated Radio Amateurs of Long Beach | aralb.org
ARALB Manages W6RO Club Station aboard the Ocean Liner Queen Mary in the Wireless room located on the Sport Deck, Queensway Bay, Long Beach Harbor, Long Beach, California. The Wireless Room features a Ten Position Radio Station. Volunteers operate W6RO during three 4 hour "shifts" daily and establish communication all around the world.
Association of North American Radio Clubs (ANARC)
Federation of North American radio monitoring clubs.
Bill's Ham Radio | hereford.ampr.org
Web Mil list and online tube manual.
British Amateur Television Club | batc.org.uk
Encourages and co-ordinates the activities of amateurs involved in all aspects of television as a hobby.
CQ Amateur Radio Magazine | cq-amateur-radio.com
Radio Amateur's Journal - independent magazine devoted to amateur radio.
Do-It-Yourself 2.4ghz Antenna | binarywolf.com/249
Free Do-It-Yourself information.
eHam | eham.net
Ham Radio on the net. Classifieds, Ham exams, links, tests, event calendars, and much more for the Ham.
Electric Radio Magazine | ermag.com
Published primarily for those who appreciate vintage radio gear and those who are interested in the history of radio.
F5RDH | f5rdh.com
You will find here some achievements concerning ham radio activity. The majority of the these achievements were the subject of a publication in MEGAHERTZ Magazine, Radio-ref. Magazine or in RadioKit Electronica. All information necessary to the manufacture of an assembly, CAD files, and the software are available. Do not hesitate to contact me for further information.
Felix Meyer HB9ABX | home.datacomm.ch/hb9abx/ham.htm
HAM homebrewing: antennas, filters, cables, digital communications.
FEMA | fema.gov
Federal Emergency Management Agency.
G7KPF UK Quick Links | gayne.co.uk/g7kpf
UK Amateur Radio Quick Links.
Ham CAP Propagation Software | dxatlas.com/hamcap
HF propagation prediction tool for Amateur Radio by Alex Shovkoplyas, VE3NEA.
Ham CAP provides a COM/OLE Automation interface that 3-rd party programs can use to start Ham CAP, to set prediction parameters, and to run predictions. In a typical application integrated with Ham CAP the user will right-click on a call sign, and Ham CAP will pop up and display the point-to-point propagation chart. Incredible graphics!
Hammond Museum of Radio | hammondmuseumofradio.org
The new Museum is now home to hundreds of receivers and transmitters dating from the spark era up to and including National's first solid state HRO500. Over the years the Museum has evolved to become one of North America's premiere wireless museums. Fred Hammond VE3HC.
Ham Radio Classifieds | swap.qth.com
Free from QTH.COM.
Ham Rad | hamrad.com
Amateur Radio Resource - links, events, organizations, manufacturers, dealers, and more.
Ham Radio Manuals | hamradiomanuals.com
516-671-1181 | Glen Cove, NY
Supplying vintage to modern HAM radio and related manuals.
Handi-hams | handiham.org/index.php?menu=1
Amateur Radio & Technology for people with disabilities.
HF-Fax | hffax.de
Marius Rensen presents his site that specializes in worldwide radio facsimile & SSTV. "The reception of Radio fax, Wefax, Press fax, Photo fax and amateur SSTV radio stations is a child’s play now. Inexpensive software such as WXSat and JVComm32 for sound cards, or JVFAX with a simple converter, connect to a (SSB) radio receiver allows you to receive facsimile services and SSTV from stations all over the world."
How Ham Radio Works | howstuffworks.com/ham-radio.htm
Howstuffworks.com - Amateur radio is a worldwide group of people who communicate with each other over a wide frequency spectrum using many different types of wireless transmitting modes.
International Space Station Reference | spaceflight.nasa.gov/station/reference/radio
NASA Ham Radio information.
International Telecommunication Union | itu.int/home/index.html
An international organization within the United Nations System where governments and the private sector coordinate global telecom networks and services.
IPS Radio & Space Services | ips.gov.au
The Australian Space Weather Agency.
Jim's Crosley Antique Radio Page | crosleyradios.com
Very good collection of Crosley radio photos and a selection of models for sale. A unique collection of vacuum tube box art.
Jim Tonne (WB6BLD) | tonnesoftware.com
Software, App Notes. A technically-oriented site for engineers, technicians and radio amateurs.
K9IU Amateur Radio Club | indiana.edu/~k9iu
Indiana University Amateur Radio Club - membership includes students, faculty and staff of Indiana University, as well as other interested local hams.
KK7TV Communications | kk7tv.com
Pictures of restored vintage radios.
KW Amateur Radio Club Inc | kwarc.org
Kitchener-Waterloo Amateur Radio Club.
Longwave Club of America | anarc.org/lwca
Promotes both DXing & experimenting on frequencies below 550 kHz & activity on the 1750 meter band.
Mods.dk | mods.dk
Tips, tricks, and modifications of HAM rigs, HAM modems, etc; modifications of many types of HAM radios, microphones, power supplies, modems etc. You can find how to modify a radio to receive and transmit out of range, you can find how to modify a radio to use high speed packet modems, and how to modify the radio/modem to get better performance.
Morse Code Tutorial | 1728.org/morstest.htm
A neat online tutorial and interactive code test - by 1728 Software Systems.
Morse Telegraph Club | morsetelegraphclub.org
International non-profit organization dedicated to the perpetuation of the knowledge and traditions of telegraphy and American Morse Code.
Mt. Airy VHF Radio Club | packratvhf.com
The Mt. Airy VHF Radio Club is dedicated to serving the VHF / UHF/ Microwave Amateur Radio community as well as enhancing the state of the art for 50 MHz and above operation.
NØHR | n0hr.com
Software tools for ham radio (propagation, PDA apps), a DXpedition map, links and articles.
National Association for Amateur Radio | arrl.org
ARRL - Exams, clubs, hamfests, addresses, operating activities, licensing, news.
Navy-Marine Corps MARS | navymars.org
U.S. Navy Military Affiliate Radio System, proudly serving the U.S. Navy, U.S. Marines and U.S. Coast Guard.
Nevada Radio in the UK | nevada.co.uk
Suppliers of amateur radio, scanners, pmr, digital and shortwave equipment and accessories.
Nuts & Volts Magazine | nutsvolts.com
Published monthly for the hands-on electronics hobbyist. Our magazine covers the fields of analog and digital circuit projects, relevant and emerging technologies, fundamentals, and thought inspiring features on lasers, data security, supercomputing, near space experiments, micro controllers and more.
Ole Virginia Hams | w4ovh.net
"The Ole Virginia Hams is a non-profit Amateur Radio club organized for the educational & scientific study of electronics & communication, and to provide amateur radio communication services for the public."
Practical Wireless | pwpublishing.ltd.uk
Britain's best selling amateur radio magazine.
Project OSCAR | projectoscar.net
Project OSCAR started in 1960 and was responsible for the construction of the first Amateur Radio Satellite OSCAR-1, that was successfully launched from Vandenberg AFB in California. OSCAR-1 orbited the earth for 22 days, transmitting the "HI" greeting you see in Morse Code above. Our mission is "To initiate and support activities that promote the Satellite Amateur Radio Hobby". Our primary goal is to reach out and provide logistical support, training and in some cases equipment to amateur radio associations, schools and the public at large.
PSK31 | aintel.bi.ehu.es/psk31.html
Peter G3PLX's implementation reference software.
QRP Amateur Radio Club International | qrparci.org
Members are from countries as far apart as USA, Russia, UK, Japan, Holland, Australia and many, many more; a truly international organisation featuring news, links, technical information, and more.
QRZ | qrz.com/mods
Amateur radio shareware and information.
QTH | qth.com
Low cost web site hosting and classified swap ads for ham radio, amateur radio and others.
Radio Amateur Satellite Corp (AMSAT) | amsat.org
North American branch of the international amateur radio satellite community.
Radio & Electronics School | radioelectronicschool.com
This place has an incredible collection of useful items that includes video and audio lessons, calculators and articles. Founded in 1998 by Ron Bertrand VK2DQ/4. The Radio and Electronics School is a non profit organisation run by a dedicated group of volunteers from the states of Australia.
Radio Reference | radioreference.com
Radio communications reference website, featuring a complete frequency database, trunked radio system information, FCC License assignments and callsign maps, 10-Code Lists, agency maps, files, downloads, links, and detailed agency information for most public safety, military, and local government communications.
Radio Society of Great Britain | rsgb.org
UK's internationally recognised national society for all radio amateurs.
Radio User | radiouser.co.uk
Information and articles on civilian & military airbands, scanning, reviews, maritime matters, news, trading post.
RigPix Database | rigpix.com
Source of information and pictures of radios, accessories and more.
Robert F. Heytow Memorial Radio Club - K9YA
Publisher of the K9YA Telegraph — a FREE general interest ham radio newsletter.
San Bernardino Microwave Society | ham-radio.com/sbms
A non-profit technical organization dedicated to the advancement of communications above 1000 MC.
SuitSat Transmissions | aj3u.com/blog
A collection of status reports and audio recordings from Amateur Radio Operators around the world.
TAPR (Tucson Amateur Packet Radio) | tapr.org
The DXZone.com | dxzone.com
Amateur Radio internet guide.
Very Early Yaesu Musen Co | alphalink.com.au/~gfs/yaesu/Yaesu1.htm
Amateur Radio Equipment in Australia.
Vintage Radio & Test Equipment | jvgavila.com
EB5AGV / EC5AAU personal amateur radio website.
W5YI | w5yi.org
Assists applicants in obtaining the various FCC-issued Amateur and Commercial Radio Operator licenses.
W6ELProp | qsl.net/w6elprop
Primary W6ELProp software distribution site.
WA3KEY | wa3key.com/collins.html
Virtual Collins Radio Museum.
WB6VUB | mpicomputers.com/ham
"Amateur Radio Web Page" with extensive website links. All software now listed here on the separate Tonne Software website - very nice!
WorldRadio Online | worldradiomagazine.com
Club, contest & Hamfest listings, books, references, software, videos, antennas, 24hour watches.