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The Bazooka antenna, a coaxial dipole, functions as an omnidirectional antenna with vertical or horizontal polarization. Patented in 1939 and refined in 2006, it features a quarter-wavelength coaxial cable with separated conductors. The outer conductor connects to a sleeve, while the inner conductor extends vertically. Initially complex, it has been simplified for versatile use, including military applications. Adding elements can modify its behavior for NVIS or Yagi-Uda configurations. Experiments in 2007 at the Campus de Pesquisas Geofísicas in Paula Freitas-PR demonstrated consistent VHF and UHF performance, showing reliable return loss measurements despite variable weather.

A new SDR radio concept developed by N6QW as an experimental 5W SDR transceiver for the 40 meter bands. Radio and Rig (RADIG) is a term conied by the author.

SADARD Radio Club

The Utah Amateur Radio Club (UARC), holding the callsign _W7SP_, provides a comprehensive resource for amateur radio operators, particularly within Utah. It details club activities such as Field Day, Winter Field Day, and annual social events like the Steak Fry and Christmas Dinner. The site also lists club resources including repeaters, _IRLP_ information, HF remotes, and a lending library. Information on becoming a ham, exam schedules, and a local repeater list are also available, catering to both new and experienced operators in the region. UARC hosts regular meetings on the second Thursday of each month, excluding July and August, at the University of Utah's Warnock Engineering Building, with presentations on topics like weather and _Skywarn_. The club publishes the monthly _Microvolt_ newsletter and maintains a YouTube channel for meeting playback. Additionally, UARC offers a Ham Hotline for questions and provides access to an "Elmer" list for mentorship, supporting the local amateur radio community.

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

W9SRC Stars amateur radio club

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.

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

The Digital Communications Interconnect (DCI) resource details the operational philosophy and technical implementation of an open _MotoTRBO_ IPSC network, emphasizing the use of _c-Bridge_ technology for interconnecting DMR repeaters and talkgroups. It outlines the group's mission to facilitate dynamic connections within the regional DMR amateur radio community by openly sharing network resources and talkgroups, promoting independent network growth and exploring the capabilities of c-Bridge linking. The site provides insights into the technical advantages of c-Bridges, such as breaking the finite peer slot limitation of simple IPSC networks and enabling more flexible talkgroup routing beyond two timeslots. This legacy asset, last updated in October 2022, also reflects on the group's history and challenges encountered in national DMR efforts, citing political divisiveness among major c-Bridge groups. It discusses the practical application of c-Bridges for emergency communications and nets, ensuring redundant talkgroup servers for smooth day-to-day operations and priority events. The resource encourages other c-Bridge operators to adopt international talkgroups like "_iCall Talkgroup_" and a nationwide "Emergency Talkgroup," while also offering guidance on affiliating repeaters or IPSC networks with DCI's open network.

How do you practically conduct an RF exposure evaluation of your station? What information do you need and what values must you compute? What are the tools and techniques readily available to the casual operator to ensure compliance with the FCC regulations about RF exposure

Discover the key facts about what radio propagation is, the different types available and how they affect different frequencies.

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

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

MDARC

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.

Crawley, West Sussex UK.

Ham radio activity and homebrew from Italy with some interesting article on QRSS, decoding interfaces, APRS and antennas

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.

Starting March 23rd, the Peterborough Amateur Radio Club (PARC) conducts a virtual licensing class via Google Meet, led by Mark, VE3SB. This course comprises seven two-hour lessons, held on Mondays at 7 PM EST, focusing specifically on material required to pass the ISED exam. The registration fee of $60 covers the course, including in-person or remote exams, and grants participants a PARC membership for the remainder of the calendar year. Outside participants are welcome to join the virtual class, with exam options available upon completion. While recommended study material can be purchased separately, Peterborough-area participants have the option to arrange for a loaned copy of the book. The club emphasizes practical learning for exam success.

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

TSGARC Amateur Radio club Thornbury & South Gloucestershire Englang UK

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

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.

The Dickson County Amateur Radio Club (DCARC) operates as a local organization for amateur radio enthusiasts in Middle Tennessee, providing a focal point for hams in the area. The club's activities typically encompass local nets, technical discussions, and support for emergency communications, aligning with the public service aspects of amateur radio. Members often engage in various operating modes and bands, sharing knowledge and experience to enhance their collective skills. Club members participate in field days, local contests, and community events, demonstrating the practical applications of amateur radio. These gatherings offer opportunities for new hams to gain practical experience and for seasoned operators to mentor others, strengthening the local amateur radio community. The DCARC serves as a hub for camaraderie and mutual support among its members, contributing to the vibrant ham radio scene in Tennessee.

G3ztt mid cheshire amateur radio society, cheshire uk

RSGB Affiliated club

The page automatically generate a Great Circle Map (GCM) for ham radio operators based on the IP address or by a given QTH locator. The GCM generated, unlike traditional maps of this type, has been rendered in an elliptical shape instead of a circle. This provides an expanded view horizontally thus making it easier to interpret. The map base is colored with each continent colored differently for easier recognition. The color code of the continents is given below the map for easy reference

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.

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.

Listen to online WebSDR located in Andorra Europe. Four receivers on 60m, 20m, 40m, and 80m, connected to a dipole antenna direction East/West

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

The title may seem a strange question. Still, it is often said that the part where the current is largest, radiates most. And from that a rule of thumb follows, saying that if you don't have enough space to hang a complete half-wave wire dipole then try to make the central part hang as freely as possible.

Branch 48 NZART

Covers all topics of Ham Radio, personal blog

ARAC Andover radio amateur club

This PDF document reviews the POTA PERformer Antenna by KJ6ER, providing insights and details about its performance and features. The content is aimed at hams looking for information on this specific antenna model to help them make an informed purchasing decision. It contains technical specifications, user experiences, and possibly recommendations for optimal use. The review is valuable for hams interested in portable operation and seeking a reliable antenna solution for Parks on the Air (POTA) activations.

Radio Clun Pirot

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

A learning aid for prospective amateurs and administrative tool for accredited examiners.

Established 1938

Ham radio club based in Fort lee NJ USA

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

Article about the essentials of radio signal path loss, its causes and prediction, and its use in radio coverage and wireless survey tools

Maybe not state-of-the-art technology but the author offers a quick and easy project for a Morse code practice oscillator using a 555 timer chip

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

Ham radio club serving Edmonds and Woodway Washington.

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

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.

Barry County, Michigan, USA

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