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The page contains the recommended Operating Code of Practice for 6 meters band as issued by UKSMG in collaboration with other organizations. It aims to improve productivity and enjoyment for all radio amateurs using the band. The code covers topics such as inter-regional calling frequency, local band plans, DX operations, and proper operating practices. It encourages adoption by other Amateur Radio Societies to promote responsible and respectful use of the 6m band.

Well documented Amateur Radio HF/VHF antenna projects, high power Russian GS35B RF amplifiers, mobile RFI solutions, related accessories, vintage radios, Six meter equipment, and useful techniques by K8CU are inside.

Theory, Modeling, and Practical Applications By W5JCK, presentation in PDF File. This presentation focuses on Near-Vertical Incidence Skywave (NVIS) antennas, which are crucial for short-range radio communications, particularly in military and emergency contexts. It explores NVIS theory, antenna models, and installation criteria while debunking common myths about reflectors. Key topics include usable frequency bands, optimal installation heights, and the impact of soil quality on performance. The presentation outlines the best bands for daytime and nighttime use, emphasizing the importance of understanding propagation characteristics to enhance communication effectiveness within 200 to 300 miles.

Almost a fresh QSL manager Database, Country Tables for YPLOG by VE6YP (updated monthly), Additional files for the TRLoog by N6TR. Technical topics for HF Contesting (mostly CW), software download (a huge collection)

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.

Page on amplification topics. From vacuum tubes to various components, discussion on stability and arcin causes.

General electronic topics on interfacing to PC soundcards by epanorama.net

Amateur Radio and Commercial Radio licencing exam practice. You can visit the Technician, General or Extra license pages where you can pick and choose the topics to practice so you can build up to a complete exam.

The page discusses Axial-Mode Helical Antennas, focusing on turning helical antennas over perfect ground and modeling helices in NEC-2 for optimized design. It covers topics such as high-gain performance, broadband, impedance matching, radiation pattern, feedline, balun, near field, far field, and DIY applications.

The DL6WU yagi antenna for 23cm band

The website offers a comprehensive guide on high-frequency (HF) skywave propagation for amateur radio operators. It explains HF radio propagation fundamentals, including electromagnetic wave properties, HF bands, and propagation modes like skywave, ground wave, and line-of-sight. The site focuses on the ionosphere's critical role, influenced by solar activity, in refracting HF waves for long-distance communication. Real-time monitoring tools such as DX clusters, beacons, and digital modes like FT8 assist users in tracking band activity and propagation conditions globally. Forecasting methods are detailed, highlighting scientific insights into solar-terrestrial interactions and ionospheric variability. The guide also covers advanced topics like NVIS and gray line propagation, ionosonde data, and propagation prediction models, making it a valuable resource for ham radio enthusiasts aiming to optimize communications

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.

The document is a technical guide on designing RF filters for radio frequency applications. It covers topics such as interference suppression, band-pass filters, and low pass filters, with a focus on filter design and circuit filters.

Ham Radio and DX topics by AC6V

Mailing list for people interested in building radio and electronics equipment from kits or from scratch. Frequent topics include shortwave radio receivers, construction techniques, and ham radio project.

Enhanced SSB Audio (ESSB) is a specialized operating mode that extends the capabilities of traditional Single Sideband (SSB) voice transmissions. This presentation by K4QKY delves into the technical aspects of ESSB, discussing its advantages and the ongoing debates within the ham radio community regarding audio quality and bandwidth usage. ESSB aims to provide clearer and more natural-sounding audio, which can enhance the overall communication experience for operators. The presentation covers various topics, including microphone selection, audio processing techniques, and the importance of proper equalization. It also addresses the controversies surrounding ESSB, such as the potential for interference and the debate over whether it strays too far from traditional SSB practices. By understanding these elements, amateur radio operators can make informed decisions about their audio setups and contribute to discussions about the future of SSB operations.

Personal Blog devoted to ham radio topics,homebrew,antenna,satellite and other projects

Construction of attenuator, suitable for fox hunts at 144mhz

The East Tennessee DX Association (ETDXA) is an amateur radio club that welcomes all experience levels. They focus on a variety of activities including DXing (long-distance communication), contesting, and general ham radio topics. Their goal is to create a community of radio enthusiasts who can learn from each other and enjoy the hobby together. They also aim to promote the art and science of DXing while representing East Tennessee on the international amateur radio scene

CAT5 T-568B Colour Code for RJ-45 Plug

Presents a detailed resource for DXers interested in Non-Directional Radiobeacons (NDBs), MF, HF, and VHF propagation beacons, and various other radiobeacon types. The site offers access to downloadable information files, including an Abbreviations List, NDB List Country List, and NDB Publications List, which serve as foundational materials for newcomers to the hobby of beacon monitoring and DXing. It covers specialized topics such as DGPS beacons, GMDSS DSC mode, and NAVTEX mode, with dedicated sections providing in-depth explanations. A Beacon Photo Gallery showcases diverse radiobeacon types from around the globe, offering visual context for different systems encountered in the field. The platform also facilitates participation in unique monthly Coordinated Listening Events (CLEs), providing guidelines and schedules for these activities. The resource outlines various associated Groups.io lists, including the primary NDB List for radiobeacons (NDBs, Propagation Beacons, VOR systems), the DGPS List for DGPS DXing, Time Signals, LORAN, and WeFAX modes, and specialist groups like NavtexDX and DSC List for GMDSS-DSC. It details how to join these communities for further engagement and information exchange.

Discussion groups for Shortwave Listening, Propagation, Amateur Radio, and related topics.

Index of main electronics topics

This is a presentation used at OVARC on the LindenBlad antenna construction. The presentation cover several topics about this antenna, from the basic antenna design, to the guide on how to contruct a custom lindenblad antenna for the 2 meters band and and 70 centimenters band.

Radio for Peace International (RFPI) is a Global Community Radio Station located in Costa Rica, Central America that broadcasts progressive news on shortwave radio and the internet on topics of Peace, Human Rights and the Environment. RFPI gives a voice to the voiceless by promoting democratic communication.

Personal Blog devoted to ham radio topics, amateur radio issues, social impact of ham radio and opinion.

How to construct a Sniffer for 2m band

Trading forum for ham radio equipment and related topics

A group of local hams who operate nightly on simplex and discuss all sorts of topics

We are a general purpose ham radio club serving Columbus and the Central Ohio area. We run the W8ZPF repeater, 146.67-, located in Columbus, and hold bi-monthly meetings on topics of interest to radio amateurs.

A DK5TX article on Kendoowd TS-590 ALC problem with ALC spikes and other interesting topics

Notes from an amateur radio operator. Martin Ewing Branford, Connecticut, USA, topics are Ten-Tec Orion, Station Grounding, PSK31 Morse, etc.

After a year of preparation, 150 students and 11 professors participated in 10 hours of intense Contesting instruction covering some 22 topics, with over 400 pages of text

Radio Free Europe/Radio Liberty website provides news and information on various topics beyond borders. It includes top stories, visuals, newsletters, and in-depth coverage. The content is useful for staying updated on global events and perspectives.

K8CU technical topics article about high voltage breakdown tester necessary for testing of any high voltage components like vacuum tubes, high voltage capacitors, vacuum relay

Pignology is mainly an app developer focused on ham radio related topics. Offers radio remote control devices, and develop apps for them along to logbook apps and other ham radio related utilities.

Amateur radio HSMM High Speed Multimedia, data and voice at ARRL website

KF6SPI Technical blog, audio, hifi, car and ham radio topics

The Hermiston Amateur Radio Club evolved from an informal coffee break in the late 1970's. The group met to discuss amateur radio topics and to support the 147.03 repeater. It was located at Ernie Netter's on Loop Road.

DX-HOLIDAY is a DX holiday and DXpedition holiday-style dedicated website which provides excellent information on a range of pertinent topics such as: organize a DX-holiday in remote area, organize DXpedition holiday-style with your family, booking and negotiating with hotels, obtaining a foreign amateur radio license, rent a radio shack and antennas during your holiday, travel documentation & money matters, health, emergency, and weather issues

The Downeast Spectrum is an Amateur Radio newsletter covering topics of interest to enthusiasts of the Ham Radio hobby and service. It also reports on the activities of three ham radio clubs in Down East, Maine

The San Bernardino Microwave Society, operating under the callsign _W6IFE_, serves as a significant technical hub for amateur radio operators specializing in frequencies above 1 GHz. This organization's influence extends across Southern California, providing a centralized resource for advanced RF experimentation and **regional frequency management** within the microwave spectrum. Its permanent value lies in its extensive archive of technical papers and project documentation, which are critical for operators engaged in high-frequency design and deployment. The society's infrastructure is primarily intellectual, focusing on the dissemination of specialized knowledge rather than a conventional repeater network. It offers a robust collection of technical papers from prominent members like K6PIP, K6BLG, and WA6EXV, covering topics such as Rubidium oscillator data, logging software, and filter design. This resource facilitates advanced amateur radio operations, including participation in microwave contests and the development of custom transverters for bands like 24 GHz. The site also details various member projects, such as the Owens Valley Radio Observatory Project, showcasing practical applications of **RF propagation analysis** and system integration. DXZone Focus: Microwave | Technical Papers | RF Propagation | Contest Results

Sound clips and notes on sporadic E on four meter band

APRS related links and resources by KA9VNV

Personal blog devoted to ham radio topics, portable operation, homebrew, antenna and other projects

Ham radio stuff, scanner and shortwave topics at KE6ZGP blog

Collection of several topics on antenna tuners and their performance. Why use an antenna tuner? How does an antenna tuner…tune Does an antenna tuner fool the radio? Will an antenna tuner waste power? Can an antenna tuner help get more power to the antenna?

This article is an attempt to shed some light on this misunderstood component, covering topics like why you need a common mode coke, what it does, what properties it should have, ho to build one and how to measure its performance.

The AN-55A ATV Handbook PDF is a document providing information and guidance on Amateur Television (ATV) for hams interested in setting up and operating ATV systems. The handbook covers topics such as equipment, setup, operating procedures, and technical details related to ATV transmissions. It is a useful resource for hams looking to explore the world of ATV and engage in video communications through amateur radio. The content aims to educate and inform hams about the intricacies of ATV technology and operation.

The Story County Amateur Radio Club offers a wide variety of opportunities for persons interested in amateur radio. Among the yearly activities are programs on technical topics, radio operating activities, flea markets and sponsorship of ham radio classes.