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Chesterfield and North Derbyshire Ham Radio Society

Ham radio club based in Fort lee NJ USA

Ham radio club serving Edmonds and Woodway Washington.

Hambook is a modern general-purpose CAT-control software package for HAM radios targeting the Windows platform.

The Ashtabula County Amateur Radio Club is a group of amateur radio operators (Hams) in Ashtabula County, Ohio. We dedicate ourselves to all aspects of amateur radio communications, from emergency communications, to social gatherings, to contesting. Our club is open to anyone wanting to learn and participate, regardless of licensing.

These baluns are used to attenuate the common mode current that flows on the outside of the coaxial feed line.

Procedure for foreign ham radio licensees to establish a station in Japan

The ICOM IC-7610 SDR HF/50MHz Transceiver official product page with product specifications, option accessories and video at ICOM UK

Ucchino is an Italian manufacturer of electronic cirucits inclunding Digiham amateur radio USB interface for digital modes, morse code oscillator, filters and RF protectors

The continuing saga of a new ham discovering Amateur Radio.

This antenna looks like an inverted L antenna, yet it is not, it could also be viewed as a 160m off-center fed dipole antenna, it looks more like an end-fed 1/4 wave 160 meter antenna.

This detailed guide provides step-by-step instructions on setting up a HamClock for your shack using a Raspberry Pi and the HamClock 4.21 software. It includes recommendations for hardware such as Raspberry Pi models, SD cards, PSUs, and displays. The guide covers installation, setup, configuration, and suggestions for customizing the default settings. Whether you are a beginner or experienced ham radio operator, this guide will help you create a functional HamClock for your shack with ease.

QRPhamradiokits is an online shop for custom amateur radio kits including QRP transceiver kits, tuners, cw keyers, VFO DDS, part and components

This page provides a detailed guide on the Guanella Current Balun for ham radio operators. The author shares very nice schematics, photos, and explanations on the construction and use of this type of balun. The content explains when a balun is needed and how it can help with common-mode currents in antenna systems. It also discusses the construction process, including winding the balun around a ferrite core. This resource is useful for hams looking to improve their antenna systems and reduce common-mode currents for better performance. This article is in Dutch.

Notes on installing the miniVNA PRO software, making a calibration standard, a trap tuning loop.

A ham radio home made preamplifier for 50 MHz and 70 MHz bands

Brigham Young University Amateur Radio Club (BYUARC) was founded in 1949 and has been headquartered in several places on BYU campus over the years, finally coming to its permanent location in the Wilkinson Student Center in the 1970s.

The program serves to assist in a ham-radio activities secretarial with his hobby , such as Printing QSL cards or print labels directly from the program , printing envelopes and mailing envelopes for the feedback you send direct QSL cards, download address for sending cards direct from QRZ.COM or for any station. Checking whether for the QSO and his country is present QSL bureau.

NA4RR manufacture a six band hexagonal beam antenna for ham radio, covering 6, 10, 12, 15, 17, and 20 meter.

Representing the interests of Amateur Radio in Berkshire & the Thames Valley since 1934

Web site dedicated to articles relating to Ham and CB Radios and antennas, reviews and classifieds.

QSO Recorder Indexing service. This site allows radio amateurs to share their contest and DXpedition audio recordings, usually made with the N1MM Logger+ and the Qsorder plugin

An original amateur radio blog in Esperanto lenguage, all about ham radio, DX, antenna.

A comparison among a traditional J-Pole Antenna and 2BCX Slim Jim Antenna

The Washington County Amateur Radio Club was formed on June 26, 2014. Anyone with an interest in Amateur Radio is welcome to join us.

This blog article introduces an updated repeater controller project utilizing the Arduino UNO. It includes a CW identifier, and the ID message can be customized using hex codes. The author offers a Windows command line program for easier message coding and provides a link for download. The controller features three adjustable timers for IDer, Timer-out, and Squelch-tail. The article also mentions the use of an audio switch to control audio levels between the receiver and transmitter. Detailed instructions and code files are available on the author's website for both version 1 and version 2 of the Arduino repeater controller. The project aims to enhance repeater functionality and audio management in ham radio operations.

Time Mapper UHD is a versatile mapping and time visualization program offering multi-satellite viewing with frequency display and unique country-pairs for PskReporter data. It features live feeds from logging programs and can plot ADIF files. Ideal for schools, offices, or amateur radio stations, it provides customizable 4K or HD world clock displays with over 60 map layers, including ham radio zones and natural features. The program supports various time functions and can import logs for detailed analysis. It runs on Windows 10 or 11 and offers a 30-day free trial.

A web site dedicate to pedestrian and bicycle amateur radio mobile operations.

ham365 is an independent online logbook, free for all Amateur Radio Operators. First launched in December 2008 as the online logbook of Ham Radio Deluxe, it is now integrated with many other logbook programs. Share own logbook over the net.

The video delves into the significance of interference reduction in ham radio setups by utilizing ferrite materials. It demonstrates the use of spectrum analyzers and tracking generators to showcase the performance of ferrite devices in minimizing noise levels. The analysis includes insights on resistance levels, attenuation factors, and the impact of using multiple ferrite clamps or rings to enhance noise reduction capabilities. Viewers gain a deeper understanding of ferrite composition, characteristic curves, and winding techniques for effective noise attenuation in different frequency ranges. Overall, the video serves as a comprehensive guide to optimizing interference reduction in radio environments through the strategic use of ferrite materials.

A homebrew 13 elements yagi antenna for two meters band. These project includes two model of the same antenna with a 6 and 7 meter boom length. Detailed pictures and nec files are available for download

The TCARES membership provides communications assistance with fires, floods, search & rescue, and health & welfare message assistance to the Red Cross, without pay, using their own equipment, usually in twelve hour shifts.

All Satellites Frequency List Update. A complete list of satellite frequencies available in several formats, including info on Satellite Uplink and Downlink frequencies Beacon, operative Mode, Callsign and Weather sat functionality.

In the quest for an ideal field portable antenna, the author recounts experiments involving various wire configurations. While a previous candidate, a 41ft random wire, proved effective but lacked stealth, the search led to a surprising rediscovery of a design previously rejected—the Rybakov Antenna. With a focus on simplicity, rapid deployment, and multiband capability, the author explores the versatility of a 26ft Rybakov, avoiding the halfwave trap. The article delves into the antenna's performance and its potential as a discreet, resonant solution for field operations, addressing the challenges encountered during a POTA activation. Additionally, the Unun/Balun design used in conjunction with the Rybakov Antenna is discussed, providing insights into achieving a balanced system.

Ham Radio Dealer based in Holland dealers of most relevant ham radio brands. Transceivers, antennas and accessories for amateur radio and marine radio markets.

These frequencies have been adopted into the bandplans of each IARU region to be a focus for emergency communications in their areas. They are not absolute frequencies but instead are centres of activity and emergency communications may be found around 20kHz from these centres. Some countries may maintain other emergency frequencies in their own bandplans due to local requirements, QRM etc

Amateur radio activity days dedicated to Football (Soccer) World Cup 1 June - 15 July 2018

Amateur radio and two-way radio communication dealer with online ham radio shop for most popular ham radio brands based in Norway

Extended Double Zepp measurements for all ham bands, and online calculator. The antenna is constructed much like an ordinary Dipole antenna but with 5/8 Wavelength Elements matched with an added Impedance Matching Section of balanced feed line

Amateur radio portable operation has a lot to offer, even if you are a shack sloth and have an awesome setup.

Transformers can be used as part of a hybrid combiner or as phase inverters for an RX antenna array.

Common-mode chokes are useful solutions for RFI reduction. Winding a few turns of coaxial cable on the FT 240-31 toroid can reduced the noise below the received noise floor. In this article author measure different chokes

Ham racio clip art collection with free to use images. Additional amateur radio clip art can be found by changing the search term

A collection of ham radio clip art royalty free. Additional amateur radio clip art can be found changing the search terms.

Ham Radio DIY projects all around morse semi-automatic and fully automatic bug keys construction manuals o semi-and fully automatic Bug keys, portable light weight magnetic loops, making a telegraph set (school project) and lots of kitchen projects (useful hamradio gear made by easily available material)

The author has build the Hermes-Lite SDR v1 and v2 versions describing with a very accurated text and picture the process. Additionally has documented measurements for each component

Learn all about FT8 and FT4 digital modes in ham radio. Discover how to configure software to use these powerful modes for making contacts even in poor conditions. Find out how to hunt for awards and view instant statistics of your transmissions. Explore the benefits of using digital modes such as FT8 and FT4 for enhancing your ham radio experience.

How to Design and Build a Field Expedient End-Fed Half-Wave Antenna for 20m, 40m and 80m. This Shorty 80m EFHW comprises a 49:1 autotransformer (to match the very high impedance at the end of a half-wave wire), a half-wavelength wire for 40m (also a quarter-wavelength for 80m), a loading coil and a short tail wire. The coil and the short tail wire (about 6 feet) make up the other quarter wave on 80m.

Responsible for the operation of amateur radio repeaters GB3FM, GB3FN and GB3FX which are located near Farnham, Surrey in Southern England

This article documents the author's journey in building, modifying, and testing a DIY short vertical antenna for 40, 30, and 20 meters, with potential 80m capability. Initially inspired by Parks On The Air (POTA), the author explores pedestrian mobile operation and details various experiments to enhance antenna performance. The piece highlights challenges, SWR tuning, portability, and practical results, emphasizing a balance between efficiency and size. Ultimately, it showcases the adaptability of DIY antennas for portable ham radio applications.