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Amateur Radio enthusiasts who are interested in the LF and MF bands may be familiar with WSPR and WSJT JT9. Used as a propagation probe or beacon, WSPR allows very weak signals to be detected, frequently as weak as -27dB SNR.

The David Sarnoff Radio Club is a general-interest amateur radio club serving the greater Princeton, NJ area.

The European CW Association is an organization that hosts European CW CLUBS. Using the Association as a platform, member-clubs may exchange ideas and information, arrange various activities involving mutual participation, and generally co-operate for the benefit of amateur radio CW operation.

An informal group of ham radio operators sharing information and knowledge about radio-related technologies.

The Hurricane Watch Net (HWN) is an amateur radio organization dedicated to serving the National Hurricane Center and the public since 1965. It plays a crucial role in disseminating real-time tropical weather information for the Atlantic and Eastern Pacific regions. The HWN operates during hurricane events, providing updates and facilitating communication among amateur radio operators and emergency services. This network is essential for ensuring that communities are informed and prepared for severe weather conditions. In addition to its operational role, the HWN offers educational resources and outreach programs aimed at enhancing public awareness about hurricane preparedness. This includes providing access to tracking maps, storm surge information, and safety guidelines. The HWN encourages amateur radio operators to participate in its activities, fostering a spirit of community and collaboration in the face of natural disasters. By subscribing to their email updates, individuals can stay informed about active storms and receive vital safety information.

Shirehampton is located near the mouth of the Avon about 1 mile from the port of Avonmouth and 5 miles from the city of Bristol

SX5F DX-PLUS Hellenic Amateur Radio Team FARMAKONISI rocky Islet EU-001, 14 to 22 May 2011 & Lighthouse Farmakonisi,

Personal ham radio blog by Phil VA3QR Canada

Crawley, West Sussex UK.

The WCARC is an organization of amateur radio operators in Woodford County.

MDARC

Cape otway lighthouse, home of vk3owl during the international lighthouse amateur radio weekend

The York Region Amateur Radio Club was founded in 1959 by amateurs interested in sharing knowledge of radio communications.

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.

HyEnd is a dutch amateur radio antenna manufacturer. Makers of the popular HyEndFeed Antennas, produce Baluns, bandpass filters and selle Line isolators, coax cables and connectors.

This is an explanation of the intended way to use TR LOG with two radios in the ARRL November Sweepestakes, CW. The concepts and techniques presented here can work for you in other contests, as most of the ideas are the same.

The PARC web site describes ham radio activities and information of the Peterborough Amateur Radio Club in Peterborough, Ontario

Ham Radio in Middle Tennesse

RSGB Affiliated club

An overview of the development of the Morse key for sending the Morse Code, from the first camelback keys, through straight keys and sideswiper keys to the semi automatic keyers including the Vibroplex to the modern electronic keyer.

Spend your vacation with family or friends in this beautiful, romantic place with full access to Ham Radio. Finland, Savonlinna, the Heart of the largest lake district in Europe.

Ray-trace radio signals through a realistic three-dimensional ionosphere using Proplab-Pro. This software has been used by the military, researchers, universities and amateur radio operators around the world to assist in determining radio propagation conditions and radio signal behavior. It is one of the most respected and well established software packages for radio engineers and enthusiasts, being actively updated for over 28 years.

QLog is a free log book program for Amateur Radio users that works on Linux, Windows, and Mac OS. It's made with the Qt framework and uses SQLite for storing data. QLog tries to keep things easy to use while offering all the features you'd need in a logbook. It's not meant specifically for contests at the moment.

Qatar Amateur Radio Society

The sudden explosion of new digital modes has taken the Amateur Radio world by storm. New modes such as PSK31 FT8 JT65 FSK441, ISCAT as well as established modes such as RTTY, SSTV, Hellschreiber and others have rocketed in popularity. In order to use these modes all that is required is a simple computer-to-radio interface which couples the computer soundcard to the radio

TelTad is a Polish amateur radio dealer with an online shop. Products offered includes all major ham radio brands, Yaesu Icom Kenwood, Alpin, OM Power, VPA systems Antennas

The TVDXA is a general interest and DX Amateur Radio Club serving the Chattanooga, TN and North Georgia area of the Tennessee Valley

TSGARC Amateur Radio club Thornbury & South Gloucestershire Englang UK

Starter Code Plugs and Information for the New DMR User These code plugs were are set up specifically for three UHF repeaters in the York / Harrisburg, PA area. These are working examples only and to be used as guides.

UHSDR stands for UniversalHamSoftwareDefinedRadio. The project provides the firmware to run standalone HAM transceivers. It currently supports STM32F4 and STM32F7 MCU based QSD designs.

Amateur radio uhf repeater covering the bristol area - callsign gb3bs

A spectrum analyzer is always an usefull amateur radio test equipment that should be present in a radio shack. Hams can use it for testing frequency response of filters, amplifiers, and other two-port RF devices. This article illustrate a tracking generator compatible with any spectrum analyzer in the Tektronix 490- and 2750-series lineups

List of amateur radio repeaters in Essex England

The Intercontinental Amateur Traffic Net (Intercon) operates daily on 14.300 MHz, providing a platform for emergency communications and facilitating third-party traffic among amateur radio operators. Established in 1960, the net aims to foster goodwill and friendly relations within the ham community. It operates from 0700 to 1200 Eastern Time, with a focus on monitoring emergency traffic while encouraging operators to maintain a distance of at least 5 kHz to avoid interference. All licensed General Class operators and above are welcome to check in, using standard phonetics for clarity. The net features rotating Net Control Station (NCS) operators every hour, ensuring a diverse range of voices and experiences. Operators are encouraged to provide relays and assist with emergency traffic when necessary. While there is currently no membership for non-NCS operators, opportunities exist for those interested in becoming NCS operators. The net emphasizes professionalism and courtesy, making it a valuable resource for both emergency communications and casual check-ins.

The Northern Colorado (NoCo) DMR group is a group of Northern Colorado HAM radio operators who operate and maintain a Mototrbo radio network.

From buying an amateur radio transceiver, choosing the correct power supply, selecting the antenna and its feed line, to choosing the best microphone and accessories. A nice presentation for beginners.

Disney Emergency Amateur Radio Service

Branch 48 NZART

Wuxi Venus Information Technology is an amateur radio devices dealer in China, source for high end, high performance RF products,Control products,APRS products and Commercial products. It provides a variety of solutions to the antennas systems, APRS,electronics kits and electronics components

Amateur radio station in Parsons TN USA

ARAC Andover radio amateur club

Custom embroidered hats, shirts and jackets to Ham Radio Operators small businesses, ARES, ARRL and RACES clubs across America.

The Northern Calfornia Transmitter Hunters are a group of people that share a common interest in amateur radio transmitter hunting.

The Waterway Net, sponsored by the Waterway Radio and Cruising Club, is dedicated to enhancing amateur radio communications for recreational boaters. Meeting daily at 0745 ET on 7.268 MHz LSB, the net focuses on safety and weather updates, providing a vital link for live-aboards and cruising boats to stay connected with families and friends. Position Reports and Float Plans are essential components that ensure safety for offshore passage makers. Established in the early sixties, the Waterway Net is one of the longest-running nets in amateur radio history. Open to all amateur radio operators with a General class license or higher, it encourages participation without requiring WRCC membership. Newcomers are advised to listen initially to understand net procedures before checking in. In emergencies, FCC regulations allow anyone, licensed or not, to use any frequency to call for help, with the 20-meter frequency of 14.300 MHz available for emergency assistance approximately eighteen hours a day.

Is for those who wish to explore the globe by radio and experiment with electronics.

Amateur Radio Club Elda Spain

Echelford amateur radio society is based in ashford, middlesex, uk. has about 80 members.

Established 1938

Learn how to register for a DMR ID on DMR-MARC and Brandmeister

Super Simple APRS Position Reporter. This project idea has been in response to the more hardware heavy Raspberry Pi projects that involve extra TNC hardware, additional sound cards, and custom cabling. This APRS position reporter is done using a Raspberry Pi B+, USB GPS receiver, Baofeng UV-5R, and a mono 3.5mm audio cable between the Pi and HT.