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How to build a 432 Mhz Quagi, using a wood-made boom, and gives a 13 DBI Gain

The Walnut Tower antenna project

EasyPal is a sophisticated digital Slow-Scan Television (SSTV) application that utilizes soundcard technology to encode and decode SSTV signals. Developed by the late Erik Sundstrup (VK4AES SK), this software has evolved into a versatile communication tool for amateur radio operators, extending beyond basic image transmission capabilities. EasyPal implements Digital Radio Mondiale (DRM) encoding technology, enabling efficient data transmission over narrow 2.5 KHz channels on both HF and VHF frequencies with remarkable speed. The application supports multiple file formats, including jpg, pdf, txt, doc, and xls, as well as specialized forms such as ICS-213 and ICS-213 (ARES). Additionally, EasyPal offers email functionality through designated repeater stations with internet access. Its responsive development history and robust feature set have established it as a premier digital SSTV solution in the amateur radio community, though users of Windows 11 should note specific configuration requirements to ensure optimal performance.

Cluster monitor is a tool for web and telnet clusters monitoring. The program shows spot history, the latest spots are shown in a separate window with full information about the DX, announcements, WWV propagation, and full sorting and filtering capability. Full support for AALog and AAVoice by RZ4AG, DXAtlas by VE3NEA. Integrated dial-up support. Price USD 25

The Windom antenna was widely used in the 1930s and is named after the amateur that wrote a comprehensive article about it

"A collection of nearly all facts around the YAESU Musen products; products, company history and much more"

Here you can find Boatanchors on the air.

Vintage Ham radio restoration, AM operations, radio history, and the largest vintage-only classified ad section.

RDXCluster is a free windows telnet client for worldwide DX packet Cluster,featuring multiple spot windows, Band/Mode DXCC window, DX History window, Top DX window, Find, highlights, filters the spot by Roberto Verrini

Long path hf radio propagation is sometimes the best path to work dx, since the shortest path is not always the best path.

Details and very early history of yaesu musen amateur radio equipment in australia . 1966 yaesu first trasceiver.

A page about a Magnetic loop antenna project for the 40 meters band, includes nice pictures and history of construction

The ICOM 746-Pro has acquired a history of NEC 1678G (IC-151) MMIC and driver transistor 2SK2975 failures. The failure of IC-151 appears to be a combination of ESD damage from electrostatic charge on the antenna entering IC-151, and perhaps thermal heat.

Excellent and comprehensive history of Boat anchors manufacturers. Here are some manufacturers that boat anchor collectors should look out for: Barker & Williamson Central Electronics Collins Radio Company E. F. Johnson Company Gonset Company Hallicrafters Hammarlund The Heath Company National Radio Company R. L. Drake

Browning Laboratories, Inc. has been a key player in the CB radio community since 1999, focusing on providing accurate information about Browning radio equipment. The website serves as a hub for enthusiasts, offering a wealth of resources including company history, myths and facts, and a collector's guide. It is supported by contributions from Browning enthusiasts and extensive research, ensuring that users have access to the most complete history available. In addition to historical content, the site features links to forums and other resources, fostering a community of CB radio operators and collectors. Whether you're a seasoned DXer or a newcomer to the world of CB radios, Browning Laboratories aims to bring people together through shared knowledge and passion for radio communication. The site is designed for optimal viewing and is regularly updated to maintain its relevance in the ever-evolving landscape of amateur radio.

Transistor and its history and lot of related infos

An introduction to history of Morgain Antenna, since the early origins in Virginia, to the current home made projects and design available on the net. Article in Italian

In the long history of beam aerials there has persistently existed the claim that certain types of aerials perform better than yagis.

A four element 2 meter quad antenna project

Information and tutorials about all aspects of radio and electronics including propagation, ham radio, electronics, radio history, etc

A page in french dedicated to the double bazooka antenna, with a short history of this antenna model and main characteristics including a comparison versus the dipole antenna and formulas to determine elements size.

The Baja Net is one of the boaters favorite nets on the West Coast. It has a long history of handling traffic for mariners who are out of touch with friends and family. Several stations have phone patches enabling them to put you right on the line to talk to your loved ones.

Mission is to preserve the history and enhance the knowledge of radio.

Dedicated to the preservation and resoration on Antique radios and radio history

History of codes of the world, russian codes, visual codes, and al long collection of telegraph codes as used worlwide including the international morse code and the relative variations

A comprehensive listing of AM Stereo radio stations in North America with listening tips, news, AM mono to stereo radio conversion information, sources of AM Stereo receivers and a history of AM Stereo broadcasting.

Includes W1BB Stew Perry letters, and a sample QSL cards of dated 1963

Another page with marconi history

Canadian Railway Telegraph History - a site dedicated to Canada's railway telegraph, agents, operators, and railway

The Research and Documentation Center for the History of Radio Communications and the Electronic Media (our full name) is the world's biggest organization to collect, save, research and present whatever relates to the history of radio communications, particularly amateur radio and broadcasting

Articles about Amateur Radio, own writings and translations: history, DXpeditions, contesting and DXing ethics, Codes of Conduct, Suggestions for Pile-ups, Suggestions for Contesters, the most wanted DXCC entities.

VE1FQ, has a long history dating back to 1932 and may be the oldest Amateur Radio club in Canada.

Slow Scan TV History from 1957 till today

Collecting and history of CRT tubes and physics instruments

Frequencies and location of every meteo radiosonde launching centres in Europe. Equipments, antennas, history, SondeMonitor and BalloonTrack tutorials

An information paper by the International Amateur Radio Union, History of 40m allocation, propagation properties of 7 Mhz band

Thierry LOMBRY, ON4SKY, develops in depth and with original pictures the long history of amateur radio all through the world from 900 BC to date.

Information about Venezuela, frequencies, maps, photos, history, and related links

The page provides detailed information on a compact two-element yagi antenna, also known as the Moxon rectangle, specifically designed for the 17 meters band. It includes construction details, evolution history, performance data, and comparison with a 1/2 wave dipole antenna.

A non-profit organization seeking to preserve the history of the development of wireless communication by encouraging the acquisition, restoration, preservation and exhibition of antique wireless and radio apparatus

Clark county amateur radio club serving sw washington for 75 years! come find out how our local ham club offers programs that cover everything from the history of morse code and call signs to ham radio antennas

Valley of the Moon Amateur Radio Club website provides information on club events, history, officers, licensing, and how to join. Users can download newsletters, hamfest flyers, and net scripts. The club serves the Sonoma Valley wine country, holding monthly meetings, weekly nets, and breakfast gatherings. The club call sign, W6AJF, honors Frank Jones, an Amateur Radio pioneer. Various events are listed on the site, including picnics, VE testing, and breakfast nets.

Funky Homepage: History, News, Playlist, etc.

Telegraph Key Collection, ham radio telegraphy, cw, radio telegraphy, ham radio key, morse code key collection, key collecting, El-Key, Nikey, Vibroplex Champion, Vibroplex Blue Racer 2000, Bug, J-38, J-47, Navy Flame Proof key, Bencher, CT 599 MB key, amateur radio, amateur radio history, cw history, morse code history

Featuring Eddystone, Classic British receivers (a history from 1898 - 1973) and Hubble-Bubble a personal web page

Reportage of the CQWW CW contest in 1998, with full history of the event and photos of equipment used.

Pictures of Hellschreiber machines as projected by Rudolf Hell

Vacuum Tubes History, Theory, and Circuits

This Club has long history in serving Henry County.

QST article from May 1994 about history of call signs from the very beginning to present system. Article explains call sign allocations, call areas, prefixes for novices and prefixes like K WA WB WD, callsigns during and after the world war II and other curiosities on US Call signs.