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To promote and practice amateur radio and HAM radio in Mumbai, India.

The Conejo Valley Amateur Radio Club (CVARC) is a 501(c)3 organization incorporated as a non-profit in the State of California, and established for the benefit of the amateur radio community.

Dedicated to adventures in Ham Radio Technology

New Zealand Women Amateur Radio Operators, to promote and encourage interest in amateur radio amongst women.

Amateur Packet Reporting System (APRS) operations often require compact, reliable solutions for transmitting position data, particularly for mobile or portable stations. This resource details the construction of the _Tiny Track-I_, a transmit-only APRS tracker designed for straightforward integration with a VHF radio and a Global Positioning System (GPS) receiver. It enables hams to broadcast their location without the complexity of a full-duplex TNC. The project outlines the printed circuit board (PCB) layout and schematic, based on an original design by N6BG, with a personal PCB drawing by SV1BSX. It includes specific component placement and notes an additional 10uF/10V capacitor (C5) for improved IC voltage decoupling, a modification not present in the original N6BG diagram. The unit connects to a computer or GPS via a DB9 female connector. This tracker is ideal for basic position reporting, offering a simple and effective way to participate in APRS networks. Its small footprint makes it suitable for vehicle installations or field deployments where space is limited, providing a **reliable 9600 baud** data stream for location updates.

FTB7800 is a memory management software program for the Yaesu FT-7800R/E FM transceiver

Thsi article describes a microcontroller driven semi-automatic antenna tuner capable of handling power levels up to 150 watts. The device is a low pass filter tuner manually tuned by setting the optimized L/C combination by hand and then storing the values into the EEPROM of the mictrocontroller to recall them later (seperately for each band from 80 to 10 meters including WARC bands)

The Poole Amateur Radio Society (G4PRS) conducts weekly meetings every Thursday from 19:30 to 22:00 at St Aldhelms Church Hall in Branksome, Poole. The society provides comprehensive training courses for all levels of amateur radio licensing, including Foundation, Intermediate, and Advanced qualifications, supporting new entrants and experienced operators in their progression through the UK licensing structure. Members engage in diverse aspects of the hobby, fostering a vibrant community for local hams. Key activities include participation in various contests and events, reflecting a broad interest in radio communications. The society's commitment to education is evident through its structured _licence training_ programs, which prepare candidates for RCF examinations. The club maintains an active presence, with interests spanning general amateur radio operation, contests, and technical experimentation, as indicated by its historical association with figures like _Marconi_ and its support for events such as JOTA.

The history of radio documented in thousands of publications including copies of popular US and UK amateur radio magazines and newsletters since 1930s

Big Rapids is located in central Michigan and is home to about 11,000. Big Rapids is also home to Ferris State University and the Big Rapids Area Amateur Radio Club

Christchurch Amateur Radio Club Branch 05 of NZART ZL3AC

The radio beacon DI2AM on museum-ship in Rostock Schmarl

Drake Radio Service & Repair, Refurbishing Services

An interesting article on end fed half-wave wire antennas with a couple of original experiments. Author illustrate the role of the QRP matchbox, and a 40/20 meter antenna with a center stub making it a large bandwidth antenna for 40 and 20. Includes also an 80/40 end fed with the typical coil to make it available on 80 merts band.

The G5O Contest Group blog documents contest operations and related activities of the Stockport Radio Society. It covers various **HF** and **VHF** contests, providing insights into station setup, antenna configurations, and operational strategies employed during events. The content frequently includes post-contest analyses, discussing scores, propagation conditions, and technical challenges encountered. The blog entries detail specific contest participations, often featuring photographs of the operating environment and equipment used. It serves as a chronicle of the group's contesting history, offering practical examples of multi-operator station management and logistical planning for competitive amateur radio events. The group's focus on both local and international contests is evident through the range of events covered. Regular updates provide a continuous record of the group's engagement in the amateur radio contesting community.

Setting the pace in Cleveland County Amateur Radio for over 50 years. ARRL Affiliated / Sponsor for ARES (amateuer radio emergency service) of Cleveland County, NC. Sponsor of the famous Shelby Hamfest

Established in 1938 & Celebrating 72 years of Amateur Radio in Gippsland & Latrobe Valley

The Dixie Amateur Radio Club, Inc. is an association of federally licensed Amateur Radio operators (also known as "ham radio" operators) who primarily reside in southwestern Utah, mostly in the greater St. George City metropolitan area.

Milton Amateur Radio Club is located in Milton, Florida about 20 miles east of Pensacola, Florida. Drop by and visit our web site.

Sponsors of WAVE, WACAN awards

VU2NAN Nandu's Crystal Radio Pages

The TECLA Thirty, an early wireless age crystal set, is featured among a gallery of over 100 collectible headphones, with detailed close-up photos of vintage models. Several pages offer vintage headphones for sale, including Brandes, Baldwin, and Western Electric, suitable for crystal set use or collecting. Construction details are provided for a reproduction KILBOURNE AND CLARKE crystal set, built with vintage 1920s parts and featuring a miniature variable condenser for fine tuning. The resource also presents a project for a simple crystal radio and a 1-tube amplifier, complete with a schematic and component diagram, suitable for driving a horn speaker or amplifying weak signals for headphones. Instructions for mounting argentiferous galena detector crystals are included, along with information on MRL Handbooks covering crystal detectors and modern diodes. Additional projects include a 2A3 single-ended triode tube amplifier and two stereo tube amps using 12AX7, 6V6, 5Y3G, 6SN7, VT-25, and 5U4G tubes.

Resource page for the ICOM IC-R75 at RadioReference

A blog by W1REI dedicated to ham radio hobby

The Wanganui Amateur Radio Society Inc., Branch 48 NZART New Zealand

Ham radio club in west Los Angeles

Manage the WB7RIS repeater

A YL's experience in everything Ham Radio.

This guide explores different radio bands that hobbyists use to talk to each other worldwide. It explains how these bands work and what they're used for. From low-frequency to high-frequency bands, each has its own unique features for people who enjoy communicating through radios

How to make a custom cable to program your baofeng or kenwood radio. Includes a video on how make a Baofeng Programming Cable for Chirp on Mac OSX

Ham Radio blog for N3FHW

Radioamateurs Grimbergen, sectie NBT, UBA, ON6NB Belgium

A deep analysis of UHF connectors performance tests, including return Loss of UHF Connectors, Mismatch Loss of UHF Connectors, SWR of UHF Connectors

Ballarat Victoria Australia

An interesting article about a homemade LiFePO4 battery pack for ham radio operations, a 10Ah LiFePO4 based on Headway 38120 Cells

Founded in 1937, the Ayr Amateur Radio Group (AARG) has a long history of being the focus for amateur radio in Ayr and South Ayrshire

The Potomac Highlands Amateur Radio Club, a non-profit association in West Virginia

Tesla Radio Club and Museum

Using RadioMobile to evaluate Meteor Scatter DX-pedition sites

All about RTTY, including audio samples, rtty software, video exaples and rtty related links

The San Lorenzo Valley Amateur Radio Club, WR6AOK, is a ham radio club for amateurs in and around the San Lorenzo Valley. We are located between San Jose and Santa Cruz in the coastal mountain range of the Santa Cruz County, California.

ham radio clun in Vermont USA

Serving Austin and Surrounding Counties

A Primer On Mics For Ham Radio. Difference between dynamic and condenser microphones, microphone plugs and differences in kind of microphones available on the market

G2XV G8EVY 1919 - 2010 Promoting Amateur Radio in Cambridge for over 90 years

The Northwest Amateur Radio Society was established in 1985 and serves amateur radio operators in the suburban FM 1960 area NW of Houston.

VHF-UHF receiver covers from 25 to 800 and 900 to 2000 MHz in the following modes: AM, AM-W, FM, FM-W, FM-N, USB and LSB

The Itchen Valley Amateur Radio Club (IVARC) provides a local hub for radio amateurs in the Southampton and Winchester areas of the UK. This club actively participates in various UK contesting events, including the weekly _RSGB VHF UKAC_ contests, _RSGB AFS club contests_, and _BERU contests_, alongside annual UK field days. As a _Brickworks Accredited_ club, IVARC is committed to supporting both new licensees and experienced operators in exploring diverse aspects of the hobby, fostering skill development and operational experience. Meetings are held on the 2nd and 4th Friday of each month at the Bianchi Suite, Otterbourne Village Hall, offering a consistent schedule for members and visitors. The club's recent activities include supporting _Jamboree On The Air_ (JOTA) for local Scout groups (e.g., GB1ESG), activating special event stations like _GB0SR_ from Solent Rescue Lifeboat Station, and organizing club visits to significant historical sites such as Bletchley Park. IVARC also hosts events like QRP Day and National Field Day, providing practical operating opportunities and fostering camaraderie among members.