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A homemade j-pole antenna for six meters band, designed to work on local repeaters, and working on the 52-53 MHz. Includes a list of needed materials and detailed description on assembling the copper tubes used to build this antenna.

A ham radio blog primarily focused on newbies and those interested in the hobby. Covers a wide area of subjects that might be of interest to Amateur Radio operators, and material that can be used to study for the Amateur Radio tests.

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

RF Feedline (Coax and Ladder-Line) Loss and ERP Calculators made with Javascript. This complex feddline loss calculator has already several line types paramenters for most common coaxial cables from Belden, Time LMR, Wireman and other common products. Result will give Matches loss, SWR loss, dB and Watts power loss.

Adapting a common PC earphone with microphone to connect to a transceiver via a homemade pre-amplifier, using a simple chip with aprox 10 db gain. Includes a schematic diagram

An article about building home made Go Kits also using Tac-Comm tactical radio carriers

A portable setup of the ICOM IC-705 with portable VHF UHF and and HF Alex Loop antenna, managed with a portable Raspberry PI 3 setup.

Chapter 73 fred hammond chapter of the quarter century wireless association

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.

Amateur radio loop antenna project using a Comet CVBA-500BC vacuum variable capacitor.

Eham user reviews for Radio Shack PRO-94 1000 channel Dual Trunking Scanner

Operating in the Caribbean, the Jamaica Amateur Radio Association (JARA) provides a central hub for amateur radio enthusiasts on the island. The association details its **repeater network**, including IRLP node 7673 and ECHOLINK access, alongside information on band activity and packet radio operations. Members can access specific documents like the JARA Membership Form and the JARA Disaster Plan, while general visitors can review the full JARA Regulations and learn about the club's history. The site features a photo album and outlines various radio activities, including what constitutes a JARA Field Day. It also provides essential resources such as the Reciprocal License Form and Jamaica Amateur Radio Regulations, crucial for visiting operators. The **WINLINK Project** and Radio Voice Procedure are also covered, offering practical guidance for communications. JARA maintains affiliations with international bodies like **IARU Region II**, ARRL, and RSGB, and lists important organizations such as SATERN 14.265, Jamaica Red Cross, and the National Hurricane Center. The website also includes links to other amateur radio clubs across North America, the Caribbean, and Central and South America, fostering regional and international connections.

Design a parallel square stock balanced transmission line with this calculator.

First italian HamFest in Florence Italy, fleamarket, dx covention and contest price giving 6th April 2013

Reference site of the HAMVOIP AllstarLink AllstarLink provides hams with a means of connecting radios, repeaters or simplex links, over the internet. It is built upon the asterisk open source PBX and runs on Linux

A web page devoted to the handicapped hams of the world.

Presents an online callbook specifically for amateur radio operators within Serbia, offering a searchable database of YU callsigns. The resource allows users to query individual callsigns to retrieve associated station information, including operator details and licensing status. It also features a complete list of callsigns registered with the Amateur Radio Union of Serbia, providing a comprehensive directory for the region. The platform includes statistical summaries related to Serbian amateur radio, such as the total number of active licenses and distribution patterns. It displays the last modification date for the underlying data, indicating the currency of the information provided. The web interface is version 1.1.7, developed by YT9TP, ensuring a consistent user experience for accessing Serbian amateur radio data.

Arkansas QSO Party, Amateur Radio Klub of the Arkansas Northwest

A review of the Wouxun VHF UHF handheld transceiver KG-UV8D

The Family Hamfest

Common mode currents are those currents that flow in the same direction on a wire bundle, as opposed to the currents that flow

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.

Island of Hawai'i, British Columbia , QUebec, Canary Islands, Wisconsing, Florida lighthouses activations by F5IDM

Saskatchewan Hamfests Then and Now

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.

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.

Check out these vintage QSL cards from the 20th Century in this gallery of old QSL cards.

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

Unlike older radios, the 706 uses only one crystal oscillator (called the Master Oscillator). All other frequencies in the radio (L.O., 3-4 I.F. stages, VFO, and CW-offset) are computer-derived from the Master Oscillator. This makes it relatively simple to frequency-align the radio, so that it agrees with the Frequency Display in all modes.

The Primary N6OCS Repeater is located at 5700 feet on Santiago Peak in the Santa Ana mountains.

This article provides a detailed guide on how to build a no holes roof mount for ham radio antennas. The author shares their design that can hold 2 masts and offers tips on installation. The mount is versatile and can handle small 144 Mhz or 432 Mhz beams, as well as small verticals. With adjustable angles and spacing, the mount can be customized to fit different roof types. Additionally, the author suggests affordable options for obtaining Dish antenna mounts. Overall, this DIY project offers a cost-effective solution for ham radio operators looking to mount antennas on their roofs.

927.1250 MHz Santiago Peak, CA USA

A HF power amplifier with a push-pull of AFT09MS015N. The (small-signal) gain of the amplifier is around 26 dB in the lower HF band and goes down to about 24 dB on the higher end and still around 21 dB at 50 MHz. Its input matching is relatively good at the lower HF and degrades above 10 MHz.

Wireless Society of Southern Maine Projects, instructions and photos for many ham radio projects and experiments, including antenna construction and modelling, kit building, station setup, restoration and more

The magnetic loop, thus named by the use of the magnetic component of the electromagnetic field, is a parallel circuit LC. In this article a sample project to home made a custom antenna. The circular form is often met on the commercial models but this antenna can be hexagonal, octagonal or square.

How to set new squelch values on Baofeng HT Radios by using the CHIRP software. Make sure you save the original configuration before editing squelch levels. Edit at your own risk.

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

Building A Full-Wave Quad Loop Antenna for 6 Meters. This is an easy antenna to build and the materials cost about $15-20. It exhibits 1.8dB gain over a 1/2-wave dipole. Using an open-wire parallel feedline (commonly called ladder line) with an antenna tuner, it tunes up on the 10m band as a 5/8-wave loop as well

Eham users review of Radio Shack PRO-95

The purpose of this blog is to help new hams and promote amateur radio

Amateur radio repeaters, often designated by an "R" number like _R6_ or _R5_, serve as crucial infrastructure for extending VHF/UHF communications range. This resource from Essex Ham explains the fundamental concept of a repeater, detailing how it receives on one frequency and simultaneously retransmits on another, typically with a 600 kHz offset for 2-meter repeaters. Understanding the input and output frequencies, along with the required CTCSS tone, is essential for successful access, ensuring your signal is processed and relayed across a wider service area. The article clarifies the importance of using the correct _CTCSS_ (Continuous Tone-Coded Squelch System) tone, often referred to as a sub-audible tone, to activate a specific repeater. It also touches upon the concept of _simplex_ operation versus repeater use, highlighting the benefits of repeaters for mobile and handheld transceivers. Proper operating procedures, such as listening before transmitting and keeping transmissions concise, are emphasized to maintain good amateur practice on shared repeater assets.

256 memories enable the _AT-AUTO_ to recall settings across multiple bands, making it efficient for operators who frequently change frequencies. The tuner is compatible with various antennas and amplifiers, such as the Mercury LUX, and integrates seamlessly with radios like the FLEX 6400 using an RS232-USB connection. This integration allows the tuner to follow frequency changes without additional input, enhancing operational efficiency. Despite being out of production, the _AT-AUTO_ remains supported by Kessler Engineering, which offers firmware updates and repair services. The tuner features a cross-needle SWR meter, providing quick visual feedback during tuning. It also includes a QRO keyline circuit to protect amplifiers during tuning. Users appreciate the tuner's ability to track radios via CAT control, avoiding automatic tuning during QSOs, a common issue with other models. The _AT-AUTO_ is praised for its durability and performance, with many users noting its reliability over years of use. Its ability to handle legal limit power and its balanced line output make it a versatile choice for serious operators. Although it lacks some features like multiple coax outputs found in other models, its robust build and continued support make it a valuable tool for HF enthusiasts.

Taken from: Brief History of Amateur Radio in Calcutta-by Avinash Missra, VU2EM

An introduction to NPR by Daniel Estevez. In this blog article Daniel EA4GPZ / M0HXM, introduce the new IP communication protocol over the 70 cm amateur radio band. Daniel is an experienced operator on IP on 430 MHz with CC1101 and Beaglebone black project and makes a good comparison of the two projects.

Our club has been setting the pace for Amateur Radio in Cleveland County and Shelby for over 50 years.

The West Virginia State Amateur Radio Council (WVSARC) operates as a central coordinating entity for amateur radio interests throughout the state. Its primary function involves fostering cooperation among various local clubs and organizations, ensuring a unified voice for the amateur radio community within West Virginia. The council addresses matters pertinent to state-level amateur radio operations, including band plans, emergency communications preparedness, and regulatory issues affecting local hams. Historically, the WVSARC has played a role in organizing statewide events and providing a platform for information exchange among its member clubs. This structure helps to streamline efforts in areas such as public service events, disaster response drills, and the promotion of amateur radio to new licensees. The council's activities contribute to the overall health and growth of the hobby by facilitating communication and resource sharing across the diverse amateur radio landscape of West Virginia.

Covers the WB2JKJ Educom HF Net, which operates on 7.238 MHz and 21.395 MHz. This resource highlights the activities of The Radio Club of Junior High School 22 NYC, Inc., a non-profit organization established in 1980. The club's mission, "Education Thru Communication" (EDUCOM), focuses on integrating amateur radio into schools across the nation as a teaching theme. WB2JKJ, Joe Fairclough, founded and presides over this club, which is recognized as NYC's largest ham radio club. The site also provides access to the "APPLE SLICE NewsletterCurrent Edition" and information on how to support the organization. It includes a scrapbook section and contact details for further engagement. The content was last updated on May 5, 2023, reflecting recent activity.

Details the history and cessation of the Amateur Radio Association of Bahrain (ARAB), operating under the callsign **A92C**. Established in 1970, ARAB functioned as the primary representative body for amateur radio enthusiasts within Bahrain for several decades. The organization facilitated various amateur radio activities and provided a central point of contact for local hams. The resource indicates that ARAB ceased operations due to unspecified circumstances. It explicitly states that the organization is no longer active, marking the end of its long-standing service to the Bahraini amateur radio community. Information regarding a newly formed society, open for membership, is provided, with contact details for Fawaz, **A92AA**, for further inquiries about the successor organization.

A windows program to learn Morse code and doing QSO in CW. The training course contains 39 Lessons based on Koch method. It can sends only letters, only numbers, only punctuation