Search results

Garland, Texas RACES/ARES team web site. We are part of the Dallas County RACES council group. Amateur Radio Resource Typing is an important topic. All are welcome to our resources.

The Clovis Amateur Radio Pioneers is a non-profit Amateur Radio Club located in Clovis, California

The Kilmarnock and Loudoun Amateur Radio Club was founded in the late summer of 1980

Nevada County Amateur Radio Club

Our goal is to provide helpful and useful information to Ham Radio Beginners so you can get started as soon as you want to enjoy the amateur radio hobby.

Mason County Amateur Radio Club / Washington State USA

The New England Digital Emergency Communications Network is dedicated to providing reliable amateur radio communications throughout New England. The group members have built an advanced TDMA network connecting strategic locations and communicators

Elmendorf Amateur Radio Society Joint Base Elmendorf-Richardson JBER, Alaska

DMR in Helena, Montana. Experiments in Digital Amateur Radio Communications

Ham radio blog dedicated to WX Sat reception in particular NOAA satellites, antenna homebrewing and beacon reception by F4CWH

The RACES ARES Disaster Assistance Repeaters (RADAR) group was formed by a team of amateur radio operators dedicated to providing high quality repeater communications for amateurs involved in public service communications or response to emergency/disaster situations.

Voldatech, a manufacturer based in China, produces a range of RF feeder cables and site components essential for amateur radio installations and telecommunication infrastructure. Their product line includes various types of coaxial cables, such as **50 Ohm** and 75 Ohm options, along with a comprehensive selection of connectors like N-type, UHF, and BNC. These components are critical for maintaining signal integrity and minimizing loss in antenna systems, whether for a home shack or a remote DXpedition setup. The company's focus on _RF Coax cables_ and connectors directly supports the needs of radio amateurs seeking reliable transmission lines for their transceivers and antennas. Amateurs often compare Voldatech's offerings to established brands, evaluating factors such as impedance matching, shielding effectiveness, and durability under various environmental conditions. The availability of diverse cable types allows operators to select optimal solutions for different frequency bands and power levels, from QRP to high-power amplifier setups. Their products are particularly relevant for those constructing new antenna arrays or upgrading existing feedline systems, aiming to achieve maximum power transfer and reduce standing wave ratio (SWR) for efficient signal propagation.

DMR personal web site. Includes download links for Codeplug for Hytera AR685 PD685G, PD785G, PD785 & X1P with DMR Plus and Brandmeister support with VFO like channels. Repeater maps. In German.

St. Albans, VT

DF0WD/DL4YHF's Longwave Overview details amateur radio operations on the 135.7 to 137.8 kHz segment in Germany. The author outlines the "inofficial" European band plan, specifying segments for QRSS, TX tests, beacons, conventional CW, and data modes. Early LF activities at DF0WD began with a 20-watt CW transmitter, later upgraded to a homemade linear transverter capable of 100 watts, driven by an Icom IC706 on 10.137 MHz. The station's antenna system includes a 200-meter wire, approximately 10 meters above ground, supported by football field light-masts. Despite its length, the antenna's efficiency is noted as very low due to the immense wavelength of about 2.2 km. The author's experience highlights the significant challenge of achieving effective radiated power (EIRP) on LF, estimating DF0WD's EIRP at around 80 milliwatts based on field strength measurements from PA0SE. DF0WD/DL4YHF has successfully worked numerous countries on 136 kHz CW, including DL, F, G, GI, GM, GU, GW, HB9, HB0, LX, OE, OH, OK, OM, ON, OZ, PA, and SM. The author also mentions ongoing efforts to log contacts with CT, EI, LA/LG, and to complete a two-way QSO with Italy, demonstrating persistent activity on this challenging band.

MARCA, Inc. operates approximately 24 repeaters across Arizona mountaintops and Phoenix-area rooftops, supporting modes like D-STAR and Fusion. The club, holding the **W7MOT** callsign, engages in diverse activities including ARRL Field Day events near Forest Lakes, AZ, ARRL FMT contests, and antenna experimentation. Members actively participate in HF operations such as voice, digital, CW, DXing, and various digital HF modes, alongside MESH and EOC operations within the valley. The club's interests span a broad technical spectrum, from SDR radio building to antique radio restoration, and include modern digital modes like WSPR, WSJT, FT8, and FT4. They also explore computer-based operations such as Echolink, fostering a dedicated Single Board Computer (SBC) and Raspberry Pi group. Monthly VE testing sessions for Technician, General, and Extra Class licenses are conducted by Ray Vasquez, K4RMV. Meetings are held on the third Tuesday of each month, typically lasting two hours, with a business segment followed by a technical presentation. These gatherings occur in-person at IHop in Mesa, AZ, and concurrently via Zoom, accommodating both local members and winter visitors. Informal chat groups often form post-meeting to discuss specialized topics like D-STAR, SDR, APRS, MESH, and Fusion.

The Stu Rockafellow Amateur Radio Society was founded in 1960 and has been affiliated with the ARRL for 45 years.

The Sandy Amateur Radio Club was organized on September 25, 2014. It is open to any and all licensed amateur radio operators and anyone who is interested in the hobby

Coastal Amateur Radio is for hams south of the Fraser. Even if you live north of the Fraser you are welcome to join in. Hams who come together for the love of HF & VHF in the hobby.

Ham radio club blog

The ARRL's End-Fed Half-Wave (EFHW) Antenna Kit is an easy-to-build four-band antenna designed for 10, 15, 20, and 40 meters. Ideal for portable operations, it includes a 49:1 impedance transformer for compatibility with most transceivers. This project, detailed with step-by-step assembly instructions, involves creating a weatherproof enclosure and impedance matching network. The kit simplifies HF operations and supports multiple configurations, making it a versatile tool for amateur radio opertors.

A club for all those who are interested in Amateur Radio, meet in the London Borough of Harrow which is located in North-West London, UK

A mission of the club is to promote amateur radio by way of educational programming and activities. MCARC is an affiliated club with the ARRL.

NARL homepage, the namibian amateur radio league

SMCC Amateur Radio Club - K9ONA

The White Rose Amateur Radio Society website provides information on amateur radio activities in Leeds and West Yorkshire, including details on meetings and membership. Contact details for the membership secretary are also available.

Amateur Radio Amateur Radio Manuals & Books Computer Books & Programs Computer Hardware Rare & Hard to Find Books amateur radio,electronics ,electronis parts,tubes, amplifiers,towners, beam antennas and more

San Rafael, CA ham radio club

The WCARC is a general interest ARRL Affilated Special Service Club.

FPARC - Supporting amateur radio enthusiasts and SWLs in the Portsmouth area. Monthly meetings and summer Field Weekends using club call M0GZN and occasional Special Event Station GB1PF.

Frankston and Mornington Peninsula Amateur Radio Club

Highlights the VE2CWQ amateur radio club, a key player in Quebec's emergency communication network and a member of the _RAQI_ federation. The club actively supports the _CANWARN_ program, providing crucial communication links during outages or natural disasters when traditional telecommunication infrastructure fails. Members are encouraged to monitor specific frequencies for vital updates and instructions during emergencies. The club maintains a repeater, VE2RAW, operating on **449.325 MHz** from Mont-Rougemont, ensuring reliable local coverage for its operations. VE2CWQ emphasizes the significant public service role of amateur radio beyond hobby, contributing to community safety and resilience.

Portuguese Amateur Radio Station with personal info and logs.

Military Recreation Station and Club. Located on Elmendorf AFB and licensed since 1948. We provide a working Amateur Radio Station to Active Duty, Dependents and Retiree's. As well as DOD Civilians.

Ultimax antennas manufacturer of amateur radio End-Fed and bazooka antennas made in USA

The Pickens County Communications Group are volunteers for the Pickens County Emergency Management Agency in Pickens, S.C. and members of R.A.C.E.S.-Radio Amateur Civil Emergency Service, with the South Carolina State Guard. We are not a club. We are a group of amateurs radio enthusiasts with similar interests, dedicated in providing emergency communications for public service, public safety, and commercial communications for local agencies. We also provide Skywarn communications for Pickens County and the National Weather Service in Greer, S.C.

The Japan Amateur Radio web journal, CQ Web is a portal to radio related japanese resources established in 1995

The DIY 137 MHz WX SAT V-dipole antenna project details the construction of a specialized antenna for receiving weather satellite transmissions. It provides specific dimensions for the dipole elements, designed for optimal reception around the 137 MHz band, which is commonly used by NOAA and Meteor weather satellites. The resource outlines the materials required, such as aluminum tubing for elements and PVC for the support structure, along with the necessary coaxial cable and connectors. The article presents a clear, step-by-step assembly process, including how to form the V-shape and connect the feedline. It emphasizes practical considerations for mounting and weatherproofing the antenna for outdoor deployment. The design focuses on simplicity and effectiveness for amateur radio operators interested in satellite imagery. Key aspects include the precise angle of the V-dipole and the lengths of the radiating elements, which are critical for achieving the desired circular polarization response for satellite signals. The resource includes photographic documentation of the construction phases and the final mounted antenna.

This site is established by a group of ham members who wish to see the interests of amateur radio in Malaysia protected.

Affiliated with the American Radio Relay League in the Oregon Section of the Northwestern Division

Most members of GRRAA reside in Union County and Wallowa County Oregon, however we welcome any and all that have an interest in amateur radio.

Personal web site by Joe PS8ET an active amateur radio operator from Brazil very active both on HF bands and on Ham Radio Satellites.

W1REI / DU1LWQ amateur radio station blog from California

GM4YEQ Galashiels and District Amateur Radio Society (GDARS)

Using portable battery power is always a challange when operatin amateur radio in sota oprations. This article is about implementing lithium iron phosphate cells (LiFePO4) in ham radio portable operations.

Scandinavian Amateur Radio Teleprinter Group

A personal blog about amateur radio activities, including homebrew, bitx, ubitx, mcHF, JT65, FT8 and more digital communications.