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Simulation of a top loaded vertical antenna for 1.2 MHz -
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Beacon list for 10 meters band maintained by DL7JV -
Our mission is the promotion and advancement of amateur radio activities within our county and surrounding areas. -
FA-Kleinanzeigen is a dedicated platform for amateur radio enthusiasts in Germany to buy and sell equipment. The site features a wide range of classified ads, including HF and VHF radios, antennas, and accessories. Users can post their listings for free, making it an accessible resource for both seasoned operators and newcomers looking for second-hand gear. The platform categorizes listings into various sections, such as QRP technology, military radios, and even antique equipment, catering to diverse interests within the ham radio community. In addition to equipment sales, FA-Kleinanzeigen also allows users to search for specific items, making it easier to find rare or specialized gear. The site emphasizes user engagement, encouraging individuals to create accounts for posting ads and interacting with other members. With a focus on the German market, it serves as a valuable resource for local hams seeking to expand their stations or offload surplus equipment. Whether you're looking for a new transceiver or just browsing for interesting finds, FA-Kleinanzeigen is a go-to destination for amateur radio classifieds. -
Homebrew, QRP, Beacons & Diplomatic / Spy Radio -
A portable decoder for METEOR M weather satellite LRPT signal, available for windows and Linux -
ARRL division New York -
Yaesu FT-920 review by PA3BFM in 1998 -
Relevance of a proper ground systems on short HF vertical antennas, with an analysis on a vertical antenna for 160 meter band -
The Hurricane Watch Net, Amateur Radio Serving the National Hurricane Center Since 1965. The HWN provides up to date tropical weather information for the Atlantic and Eastern Pacific. Subscribe for tropical weather email. -
This EXCEL Program Worksheet calculates the common-mode impedance of a 1:1 Guanella (current) balun which is placed at the feed point of a balanced antenna system fed via coax. -
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The Richardson Wireless Klub is an ARRL Special Service club of amateur radio operators based in Richardson, TX, USA. -
The Malaysian Amateur Radio Transmitters' Society (MARTS) serves as the national representative body for amateur radio operators across Malaysia, having been established in 1952. This organization plays a crucial role in advocating for the interests of Malaysian hams, fostering community engagement, and supporting the growth of the amateur radio service within the country. MARTS actively participates in national and international amateur radio affairs, often collaborating with organizations like the _International Amateur Radio Union_ (IARU) to ensure the continued development and recognition of amateur radio. The society's activities encompass a range of services for its members, including the dissemination of information regarding licensing, operating procedures, and technical advancements. MARTS also facilitates various on-air events and provides resources to help members improve their operating skills and expand their knowledge base. The organization's long-standing presence since 1952 underscores its commitment to the amateur radio community in Malaysia. MARTS supports local clubs and individual operators, promoting best practices in radio communication and emergency preparedness. -
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Rotatable Antenna with Phased Elements based on the orignal design concept of HB9CV antennas, is considered to have an higher gain than standard quad antennas. The Swiss Quad Antenna does not need any spreader or boom. -
The Wilson Amateur Radio Club - WC4AR is an ARRL-affiliated club located in Wilson County, Tennessee. -
HF/50 MHz 100W All Mode Transceiver. The FT-891 provides stable 100 W (25 W AM) high power output -
A low cost, low power microwave transverter so that you can operate easily on 70cm band even with a HF or VHF transceiver -
This project details the construction and testing of a M0PLK Delta Loop antenna for the 20-10m ham radio bands. Inspired by positive reviews highlighting its reduced local QRM compared to Cobweb antennas, the author built the antenna using aluminum tubes, DX-Wire FS2 wire, and a 1:4 balun. A mix of custom 3D-printed parts and careful assembly ensured stability and performance. Initial VSWR measurements met expectations, and test QSOs demonstrated success across multiple bands. Future enhancements include adding a lightweight, remote-controlled rotator for directional capabilities. -
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The Icom IC-7600 compared to other Icom HF radios , like IC-756Pro III, IC-7700 and IC-7800 by VA7OJ/AB4OJ -
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Cary Amateur Radio Club -
OpenHamClock is a modern, open-source dashboard for amateur radio operators, designed as a web-based successor to the original HamClock. Deployable locally on a Raspberry Pi or via the cloud, it centralizes essential DX operations into a single, intuitive interface. At its core is an interactive world map that visualizes real-time DX spots, signal paths, satellite tracking, and POTA activators. The software seamlessly integrates critical tools like WSJT-X, DX Cluster, and PSKReporter for monitoring digital traffic. Additionally, it provides vital environmental data, including real-time space weather indices, solar activity, and personalized HF propagation predictions. With customizable themes and a modular architecture, OpenHamClock offers modern operators comprehensive, at-a-glance situational awareness of global radio conditions -
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A six meter band 3 element yagi beam antenna project with shortened elements using coax cables with the outer ends stripped and the center conductor shorted in somewhat of a Bazooka antenna. -
Horizontal polarized omni directional 50MHz Antenna. This antenna is intented to use in a contest station as a second system beside the stacked yagi beam system. An omnidirectional systeem can be an advantage when it comes to short openings on wich the operator must react quickly. -
Pro and cons of Digital ATV versus Analogue ATV -
The Horn reflector antenna at Bell Telephone Laboratories -
An excellent and comprehensive article on portable HF operations with attention on selecting proper equipment -
The International Morse Preservation Society FISTS was founded in 1987 by the late Geo Longden, G3ZQS -
In this article, author examine stresses placed on common-mode chokes (aka baluns) as hams use/abuse them, examine the efficiency of simple dipole multi- band antennas and their feed systems. Stressing a Balun. -
There is a specific procedure which must be followed if proper adjustment of a shunt matching coil is to be achieved. -
Active on HF all bands, VHF - SSB - MS. Hope to work you on one of the bands. -
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CT1BWW portugeses Faros Awards -
Official summits on the Air discussion group -
The alabama historical radio society - come visit our website and museum where we have a large collection of antique radios. our club does coil winding, has a large library, and a wealth of knowledge in our members. -
An ARRL affiliated club -
Amateur radio station from Capri island, Italy -
KTK, de Kortrijkse afdeling van UBA Koninklijke Unie van Belgium Amateurs -
How is your SWR - determine the power loss to expect for a given SWR, includes an excel spreadsheet by n3ujj -
Peel Amature Radio Club -
Voice ID for repeater stations project
