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Four _Headway 38120_ LiFePO4 cells form the core of an 8AH 12V battery pack, designed for reliable emergency and field power in amateur radio operations. These batteries offer significant advantages over traditional lead-acid types, including a lifespan up to **10x** longer in charge/discharge cycles, lower internal resistance for faster recharging, and a flatter discharge curve that maintains voltage stability during use. Their inherent safety, being a flame-retardant technology, makes them a preferred choice for portable applications. Proper configuration, including parallel/serial setups, and careful charging/discharging protocols are crucial for maximizing battery life. Each cell has a nominal voltage of 3.2 volts, with a maximum charge voltage of 3.65 volts. A Battery Management System (BMS) is highly recommended to prevent overcharging or deep discharging, safeguarding the cells. The project emphasizes safety, noting the batteries' high short-circuit capacity of **200 AMPS** and the critical importance of incorporating an inline fuse between the battery pack and the load. Components like the battery holder, buss bars, and a suitable case are also detailed.

We are a group of amateur radio operators located in Northern Utah who enjoy exploring many aspects of the hobby from HF to VHF and beyond. We are active in many public service events, Field Day, APRS, packet, Winlink, contesting and more

Focusing on the Indian amateur radio community, this resource provides a collection of articles covering news, technical tutorials, and DIY project instructions. It features content on various aspects of ham radio, including club activities, circuit ideas, and general information relevant to operators in India, often referencing local events and regulations. The site serves as a central point for information exchange within the region. The author, VU3HZW, shares insights and practical guidance, drawing from personal experience to present topics such as antenna construction and station setup. The content aims to support both new and experienced hams, with articles detailing specific projects and offering practical advice for improving station performance or engaging in local ham radio activities. For instance, one article might detail a simple _QRP transceiver_ build, while another could discuss optimal antenna placement for **local nets**.

The Pikes Peak Radio Amateur Association (PPRAA) serves as an ARRL Special Service Club, providing a calendar of events and activities for its members and the wider amateur radio community. The resource details upcoming events such as the USS Pueblo Memorial Museum Ships Weekend activations, a Cubical Quad Antenna Workshop, LARCFest, and various hamfests including Dayton Hamvention and Duke City Hamfest. It also lists on-air activities like a FreeDV digital voice mode event on 10 meters, a Black Friday Simplex Event on 2M and 70cm, and a 10m event for Technician class operators, emphasizing SSB privileges from 28.300 to 28.500 MHz. The PPRAA's event schedule includes educational opportunities like a Technician Class and a Soldering Workshop, alongside social gatherings such as the PPRAA Picnic and Car Show. Past event summaries highlight successful activities like the 2024 Megafest Raffle, Winter Field Day, and multiple fox hunts utilizing frequencies like 147.420, 147.480, and 147.540 MHz. The club actively supports POTA activations, exemplified by their AF0S park activation at Cheyenne Mountain State Park, and participates in historical commemorations like the USS Pueblo Memorial operations, demonstrating a broad engagement across various amateur radio facets.

When new to the 2-meter FM transceiver, securing a quiet frequency for chatter seems straightforward, but it's essential to navigate FCC rules and band plans effectively. Even though frequency allocations are consistent above 50 MHz for Technician licenses, adherence to specific segments within the 2m band—ranging from 144 MHz to 148 MHz—is crucial. This includes respecting designations for different modes like CW, SSB, and FM to prevent interference, particularly with satellites and exotic modes like EME. Understanding and following the structured band plans not only ensures legal compliance but also optimizes frequency use and minimizes disruptions in the amateur radio community.

Amateur Television (ATV) is a ham radio technology that transmits and receives broadcast-quality video and audio. It utilizes existing standards for commercial television and can be used for various purposes including experimentation, entertainment, and public service events. ATV signals can be relayed over long distances using repeaters and are capable of transmitting live video from locations like the International Space Station. The article explores how to get started with ATV, highlighting its ease of use and suitability for beginners in ham radio. The future of ATV appears promising with advancements in digital and narrowband transmission techniques.

Detecting stray RF voltages on station grounds, chassis, and interconnecting cables is crucial for preventing program and hardware failures in the shack. This article details the construction and application of an LED RF V-probe, which offers significantly higher sensitivity compared to conventional neon lamp indicators. The probe leverages two specific properties of modern red LEDs: their ability to glow at microampere currents and their rectification capability at frequencies up to tens of megahertz. The design features a simple circuit with two LEDs, allowing for indication of both positive and negative RF voltage half-waves. The minimum detectable RF voltage is approximately 2 V, a substantial improvement over the 40-60 V threshold of neon bulbs. The resource illustrates the probe's physical construction on a PCB and provides a direct comparison demonstrating its superior sensitivity in detecting RF fields near a coil. Two operational modes are described: a non-contact mode for high RF voltages (above 15-20 V) and a direct-contact mode for measuring lower RF voltages, with a safety caution for the latter. Practical examples show the probe's use in analyzing RF voltage distribution across a radio station setup at 1.84 MHz and 24.9 MHz, revealing insights into common-mode current issues and the effectiveness of mitigation strategies like adding radials.

Examines the historical context of amateur radio, specifically focusing on Guglielmo Marconi's pioneering wireless transatlantic signal reception at Signal Hill, Newfoundland, in 1901. It describes the operation of a contemporary remote radio station at Signal Hill, utilizing the special event call sign _VD1M_ issued by Innovation, Science and Economic Development Canada. The content recounts a specific contact from Signal Hill, reporting a signal strength of 5 by 9 to a station in Sarnia, Ontario, which received the signal at 3 by 3. The narrative also introduces the concept of 'Marconi chasers' who endeavor to replicate historical transmission methods. Further, the resource discusses general amateur radio operating procedures, the evolution of the hobby, and its critical role in emergency communications, citing examples from hurricanes _Irma_ and _Maria_ in 2017 and the conflict in Ukraine in 2022.

The _Colorado QSO Party_ is scheduled for **September 12, 2026**. This amateur radio event focuses on contacts with stations operating within Colorado. The _Grand Mesa Contesters of Colorado_ sponsors the event. Operators may pursue contacts across all **64 counties** of Colorado. Activations for programs such as POTA and SOTA are permissible during the event period. Logs generated from these activations are eligible for submission to both the _Colorado QSO Party_ and the associated operating program. DXZone Focus: QSO Party | Colorado | Mixed | All Amateur Bands

Provides access to a robust DX cluster node, G6NHU-2, running DX Spider software, which facilitates real-time amateur radio contact spotting across HF bands. This service is engineered for high reliability and low latency, ensuring rapid dissemination of DX spots from a global network of interconnected nodes. It features multiple redundant links to prevent data loss and maintain continuous operation, even if individual connections drop. The cluster integrates directly with the Reverse Beacon Network (RBN), allowing users to enable or disable skimmer spots for specific modes like CW, RTTY, FT8, and FT4. It also offers an extensive one-year spot history, significantly longer than most other DX clusters, which typically retain only a month of data. The node supports various lookup commands for callsign information, beam headings, QSL routing, and FCC database lookups, enhancing operational efficiency for DXers and contesters. Additionally, it permits self-spotting, a feature increasingly relevant in modern contests, and provides detailed instructions for connecting popular logging software such as N1MM+, HamRadioDeluxe, MacLoggerDX, LOG4OM2, Logger32, and N3FJP's Amateur Contact Log.

Learn how to modify your Baofeng 888s radio to use in an Allstar node. This article provides step-by-step instructions on programming the radio with suitable frequencies for amateur radio use, including tips on using the Chirp program. Make sure to use a cable with a Genuine FTDI Chipset for easy connection to your computer. Avoid transmitting on pre-programmed channels to prevent trouble. Follow the guidelines provided to customize your radio settings and ensure a smooth modification process. Visit the link for Chirp program download and consult Miklor for programming assistance.

Demonstrates various technical projects and tutorials for amateur radio operators, focusing on digital modes, monitoring, and station setup. It covers topics such as implementing a _WSPR_ station, setting up ADS-B reception, configuring a _DXSpider_ cluster, and utilizing monitoring tools like Prometheus and Grafana. The resource provides practical guides for integrating modern IT solutions with ham radio activities, including Docker and Linux environments for radio applications. This site also features a publicly accessible online logbook, offering detailed statistics on QSOs by band, mode, and geographical zone, with visual mapping of contacts. It includes a comprehensive amateur radio lexicon, explaining hundreds of terms, and provides a real-time display of the F4HXN station's local weather conditions. The resource also aggregates information on upcoming ham radio events and offers a **SWR simulator** for antenna analysis, allowing users to visualize ROS changes based on frequency and antenna parameters.

LILYGO specializes in the research and development of IoT solutions, offering a diverse range of development boards. Key products integrate LoRa and GPS capabilities, alongside various display options such as LCD and OLED. Specific examples include the _T-SIM / T-A Standard Series_, _T5 E-Paper S3 Pro Lite_, _T-Halow P4_, _T-Dongle C5_, and _T7-C5_. The company also provides the _T-Solar Kit_ and _T-Sim Shield_, catering to diverse project requirements. Hot sales items feature the _T-Display S3_, _T-Embed CC1101_, _T-Deck Plus_, _T-Embed CC1101 Plus_, _T-Deck Plus Meshtastic_, _T3 LoRa32 V1.6.1_, and _T-Display S3 AMOLED_. These boards often incorporate ESP32 microcontrollers, facilitating wireless communication and display functionalities essential for amateur radio digital modes and data telemetry applications. LILYGO provides entry-level sample code for most products, aiding learners in rapid prototyping and deployment. They also offer customization support for specific customer needs, demonstrating a commitment to supporting both individual makers and larger-scale integrations. The company actively participates in events like Maker Faire Rome, showcasing open-source solutions to the global maker community.

Operating on the Automatic Packet Reporting System (APRS) network, this platform provides a real-time, visual representation of amateur radio stations globally. Users can track callsigns, locate nearby stations, and even send APRS messages directly from a web browser, all without requiring a login. The system integrates live APRS-IS data, presenting it in an intuitive, map-based interface that supports 11 different languages, making it accessible to a broad international audience. Beyond basic station tracking, the platform offers detailed per-station pages, including historical weather data and telemetry logs. This functionality extends to companion Android and iOS applications, which incorporate an RF / KISS-TNC mode, allowing mobile devices to interface directly with APRS via radio. My own field experience with similar APRS visualization tools confirms the utility of such a resource for situational awareness during events or simply monitoring local and regional ham radio activity. The inclusion of weather and telemetry history adds significant value for those interested in environmental data or remote station performance.

The PAPA System is a member-supported amateur radio network in Southern California with inter-linked FM, D-STAR, DMR, and P25 repeaters. It provides extensive coverage from Mexico to north of Santa Barbara and from the Arizona border to the Pacific Ocean. Known for its reliability and motto "no call goes unanswered," the network supports casual conversations and emergency operations. Members enjoy using the system, attending events, and building friendships. Monthly meetings in Los Angeles, Orange County, and San Diego feature technology presentations, license testing, and door prizes.

The Florida AM Group operates a weekly Amplitude Modulation (AM) net on 3885 kHz every Sunday morning, with a pre-net starting at 6:30 AM Eastern Time and the formal net at 7:00 AM. This group focuses on the preservation, restoration, and on-air operation of antique Amateur, commercial, homebrew (HB), and Military Radio equipment, emphasizing **Amplitude Modulation** (AM) mode. Participants are encouraged to use AM mode, regardless of whether they possess vintage gear, fostering a community around classic radio operation and the distinctive high-fidelity audio associated with **vacuum tube** equipment. The net utilizes NetLogger software for check-ins and round table management, providing a structured environment for participants. The group regularly publishes net control schedules, listing operators like NZ1Q, K1HH, and W3XM, and organizes various in-person events such as Hamcation gatherings, luncheons, and boat anchor swap meets. These activities facilitate eyeball QSOs and equipment exchanges, reinforcing the community aspect beyond on-air operations. The Florida AM Group also provides contact information for net control volunteers and shares news, including SK (Silent Key) announcements for members like Steve KI4RUS and Roy W4IDD, highlighting the group's long-standing camaraderie and shared passion for AM radio.

The Playground Amateur Radio Club has be in service to the Northwest Florida Panhandle since 1951. The team in Fort Walton Beach Florida sponsors and hosts multiple events, contests, Hamfests, Swapmeets, meetings, nets and technical instruction and assistance.

The N5KWD website, maintained by David C. Taylor, presents a personal station page for an Extra Class amateur radio operator. It serves as a digital logbook and resource hub, offering insights into his on-air activities and technical pursuits. Visitors can find a **ham radio journal** detailing operating experiences, along with current news relevant to the amateur community. Beyond personal updates, the site incorporates practical tools such as online calculators for various radio applications and calendars for upcoming events like contests or hamfests. This blend of personal narrative and utility reflects a common approach among hams sharing their passion and knowledge. Furthermore, the platform showcases several **amateur radio projects**, providing details on construction, modifications, or experiments undertaken by N5KWD. This content appeals to those interested in homebrewing and technical aspects of the hobby, offering inspiration and practical examples.

The **Radio Scouting** initiative integrates amateur radio with Scouting activities, primarily through the annual Jamboree on the Air (JOTA) event, which engages over 700,000 Scouts globally each third weekend of October. This program introduces Scouts to radio technology and communication, leveraging the K2BSA Amateur Radio Association's resources. It outlines a progression from initial exposure at JOTA to more structured learning, including the Radio Merit Badge, which approximately 7,000 Scouts earn annually. Following the introductory JOTA experience and the Radio Merit Badge, the program encourages further engagement, such as achieving Morse Code proficiency and obtaining an amateur radio license, recognized through specific uniform awards. This structured approach aims to foster sustained interest in amateur radio among youth, providing a clear pathway for skill development and participation in the ham radio community.

The HD8G DXpedition will take place in the stunning Galapagos Islands from April 18 to April 26, 2025. This operation will involve 26 dedicated amateur radio operators activating the islands, which are designated as IOTA SA-004. The team aims to make a significant number of contacts, providing an exciting opportunity for DXers and enthusiasts to work this unique location. With a rich history and diverse wildlife, the Galapagos Islands offer a picturesque backdrop for this event. Participants can expect to engage in various modes of operation, including SSB and CW, as the team works to log as many QSOs as possible. The DXpedition is anticipated to generate a high volume of activity, with operators from multiple countries contributing to the effort. This is a prime opportunity for those looking to add a rare entity to their DXCC list or simply enjoy the thrill of working a special event from a remote location.

The Young Ladies' Radio League, also known as YLRL, is an organization founded by women in 1939 with the goal of connecting and supporting female ham radio operators worldwide. From beginner classes to scholarships, YLRL offers resources and a community for women of all ages and backgrounds interested in ham radio. The website provides information on membership, upcoming events, and helpful tips for renewing licenses and getting on the air. Whether you're a seasoned ham or just starting out, YLRL is dedicated to empowering and supporting women in the world of amateur radio.

Tamiami Amateur Radio Club website provides information on club activities, membership, FCC license testing, special events, and participation in ARRL Field Day and Florida QSO Party. It also includes details on DMR technology and VE testing sessions. The club has been affiliated with ARRL since 1963 and operates a special event station at the Venice Shark's Tooth Festival annually.

The **Amateur Radio** community on Microsoft Teams provides a platform for hams to connect through chat and video calls. It features five distinct channels, facilitating structured discussions on various topics, akin to a community forum without advertisements. Users can schedule events for group video chats or engage in one-on-one calls, with user status indicators showing availability. The platform supports sharing messages, files, and both video and audio communications within a defined group. An open video chat room is also available, accessible even to non-community members, allowing broader participation. The resource details how to join the existing 'Amateur Radio' community group and provides links to a blog post and a YouTube video for new users to understand Teams Communities.

Mid Sussex ARS is an RSGB-affiliated club and meets at its headquarters in Burgess Hill on the 2nd and 4th Friday of each month. They organize various activities ranging from talks by members or guest speakers, evenings on the air using their shack's latest SDR equipment, training evenings and used equipment sales. As well as scheduled club nights, they run many outdoor activities throughout the year, including direction-finding contests, town days, social evenings and Special Event Stations. They even have their own free online training academy!

Demonstrates firmware for microcontrollers like the _ESP32_ to implement a LoRa APRS iGate and Digipeater. This project leverages LoRa for packet radio communication, allowing amateur radio operators to bridge the gap between LoRa-enabled APRS stations and the global APRS-IS network via WiFi. It details the setup for both iGate and Digipeater modes, including features like transmitting APRS-IS packets over LoRa to local stations and a 30-second buffer in digipeater mode to prevent packet storms. This firmware offers an Ultra Eco Mode, achieving current consumption between **7mA** and **13mA**, making it suitable for remote, battery-powered deployments. The integrated WebUI simplifies configuration and management, providing an accessible interface for hams to deploy and maintain their LoRa APRS infrastructure. It supports sending weather telemetry packets and adheres to APRS protocols, released under the GPL-3.0 license.

With the reputation of being the most active amateur radio club in Hampshire, we support enthusiasts, experienced and new, with monthly meetings and summer field events. Free to visit!

Presents the CISAR Isola d'Elba (IQ5IN) club, detailing its role as a central point for local radio amateurs and enthusiasts. The club focuses on educational activities, technical experimentation, and fostering radio culture within the community. It provides resources for obtaining an amateur radio license, offers various didactic materials, and publishes technical articles. The IQ5IN section actively promotes a knowledgeable and engaged community, welcoming new enthusiasts through local events and practical guides. Recent content includes discussions on the role of radio amateurs during wartime, an in-depth analysis of electrical resistors from solid-state physics to RF applications, and a comprehensive guide to the UHF amateur band in Italy, covering its characteristics and uses.

The LZ Amateur Radio Club (LZARC) operates with the club callsign **KF0LZ** and utilizes BrandMeister Talkgroup 3205642, YSF Reflector 56420 (US-LZARC), and EchoLink node 536844 for digital voice communications. This club, based in Joplin, Missouri, provides online FCC amateur radio license testing for Technician, General, and Amateur Extra class licenses, facilitating entry into the hobby. LZARC actively promotes hands-on RF experimentation, mesh networking with **Meshtastic**, and participation in **Parks on the Air** (POTA) activations. LZARC hosts regular events including the N0NMS Youth Net on 145.350 MHz (PL 91.5), the LZMesh Net on the LZMesh Meshtastic Channel, and the LZARC Digital Voice Net (CHAOS Net) via BrandMeister TG 3205642. The club maintains an active Discord server with over 300 members for daily conversations, project discussions, and quick support. Recent updates highlight member upgrades and participation in local hamfests, demonstrating a focus on community engagement and operator development across Missouri, Arkansas, Oklahoma, and Kansas.

The York County Amateur Radio Club (YCARC) in Maine, USA, promotes amateur radio knowledge and camaraderie. The site features club information, activities, and upcoming events for radio enthusiasts.

The Llanelli Amateur Radio Society (LARS) website details the club's offerings for both licensed operators and those new to amateur radio, including shortwave listeners and individuals pursuing Foundation, Intermediate, or Full licenses. It highlights opportunities to learn radio techniques, explore digital modes such as C4FM, D-Star, DMR, and FreeDV, and participate in contests and social events. The club aims to foster a supportive environment for experimentation and knowledge sharing among its members. Member testimonials illustrate practical applications, such as a new licensee making a 1000km contact via a repeater after being inspired by space exploration, and another quickly passing the RSGB Foundation exam. The site also features accounts of members progressing to Intermediate and Full licenses, with one Full license holder continuing to learn new modes like CW and digital, and engaging in activities like Parks on the Air (POTA).

The ON4RSX website serves as the official online presence for the UBA Ronse/Renaix amateur radio club, providing information on its community and activities. It outlines the club's engagement across various amateur radio facets, including **HF**, VHF, UHF, digital modes, antenna construction, propagation studies, and general electronics. The site highlights past DXpeditions, such as the _OJ0V Market Reef_ operation, and mentions participation in contests, offering insights into the club's operational focus and technical interests. The resource details the club's commitment to fostering a welcoming environment for operators of all experience levels, from beginners to seasoned technicians. It implicitly compares the breadth of activities available to members, covering both theoretical knowledge development and practical application in areas like antenna building. The site's content structure suggests it functions as a central hub for club news, event announcements, and potentially educational materials, supporting members in expanding their radio knowledge and sharing their passion.