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Demonstrates an **Arduino-based** solution for the Icom IC-7300 transceiver, specifically addressing the operational inconvenience of switching between a CW paddle and a straight key. The project leverages the IC-7300's **CI-V bus** (Computer Interface 5) to provide instant keyer type selection and two preset power levels, bypassing the rig's menu system which otherwise requires eight button presses. This implementation utilizes the 3.5mm CI-V connector, leaving the USB port free for CAT control and the internal soundcard, a critical design choice for integrated station setups. The system's utility is particularly evident for CW operators who frequently alternate between keying methods during contesting or general operating. The article details the hardware setup, including an Arduino Nano, a 3.5mm jack for CI-V, and pushbuttons for control. An update in 2023 expanded the project to incorporate an 8-button Nintendo controller, enhancing user interface flexibility and demonstrating the adaptability of the initial design for further customization and feature integration.

This page presents the K4 S-Meter Recorder, a tool designed for the Elecraft K4 radio by hams. The tool collects S-Meter readings and saves them to a CSV file, allowing users to create graphs of RFI over time. These graphs are valuable during RFI hunting, aiding in pinpointing the source. Visitors can view the program's interface, download it at their own risk, and subscribe to the blog for updates. The page provides insights into the K4 S-Meter Recorder's functionality and usage for ham radio operators seeking to manage RFI effectively.

We are excited to share the news about the inaugural URC DX RTTY Contest, organized by the Unicom Radio Club! We would greatly appreciate your support in spreading the word within the RTTY community.

Bear Bait Radio Club is dedicated to educating new ham radio enthusiasts while having fun. We emphasize emergency preparedness, community service, storm watching/reporting, and wilderness search and rescue.

Over 15 years of field experience informs the product selection at Hamshop South Africa, focusing on gear that performs reliably in diverse outdoor environments. The shop emphasizes purpose-built equipment, including proven coax assemblies and robust masts, all designed to meet the unique demands of portable operations across the region. Every item is curated to ensure durability and functionality for activations in parks, on summits, or during rapid field deployments. The inventory is specifically tailored for the South African amateur radio community, prioritizing portability and ruggedness. This ensures operators have access to gear that can withstand challenging conditions, from dry bushveld to coastal humidity, without compromising performance. Products are selected based on their ability to support effective and enjoyable amateur radio activities in various outdoor settings, reflecting a deep understanding of what works in the field.

The resource details the use of LoRa for AX.25 packet radio and APRS, focusing on practical implementation. It specifies UK LoRa APRS frequency and modulation settings: **439.9125 MHz**, 125kHz bandwidth, SF12, and CR 4/5. The content provides a mini how-to for setting up an iGate using VS Code and _Platformio IDE_, with specific instructions for a Lilygo LoRa32 V2.1_1.6 board, including configuration for Wi-Fi, beaconing, and APRS-IS passcode. It also covers tracker setup using a Lilygo T-Beam Supreme, detailing firmware flashing and configuration for mobile operation. The guide differentiates LoRa APRS from traditional connected-mode packet radio, explaining why common LoRa APRS firmware is unsuitable for full AX.25 packet due to its TNC2-style payload structure. It explores alternative solutions for true LoRa packet radio, such as using an _RNode_ TNC or Raspberry Pi LoRa TNCs, and provides commands for RNode firmware installation and configuration for serial KISS operation. The resource also touches upon licensing requirements for unattended Digipeaters in the UK, noting the need for ETCC coordination and MB7Uxx callsigns.

Parks on the Air Canada page provides information about the popular Amateur Radio activity that involves operating portable radios from designated parks and nature reserves worldwide. The page presents the objectives of the program, lists over 400 national/provincial/territorial parks, and offers insights from Tracy McKim, VE3TWM, on low power communications and outdoor ham radio operation. It also includes links to YouTube channels with how-to videos on setting up portable stations, Field Day deployment, and POTA activation. Amateur radio operators interested in combining their love for radio with outdoor adventures will find valuable resources and learning opportunities on this page.

Spothole aggregates real-time amateur radio spots from various sources, including traditional **DX clusters** and specialized outdoor activity programs like POTA and SOTA. The platform provides a highly customizable web interface where users can configure display options such as DX and DE continents, local time, and a 'ping' notification for new spots. Users can also adjust the number of spots displayed and select from several UI color schemes, including PSK Reporter and Ham Rainbow. The tool integrates with external callbook services like QRZ.com and HamQTH, allowing users to remember login credentials for seamless data reloading. A distinctive feature is the ability to input a personal grid square and manage lists of 'worked' and 'wanted' callsigns. Wanted callsigns, entered as space- or comma-separated lists, receive a gold highlight when a matching DX callsign appears in the spot feed, aiding in targeted DXing efforts. Beyond the interactive web interface, Spothole offers a universal JSON **API**, enabling developers to build custom applications leveraging its aggregated spotting data.

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!

The Schoharie County Amateur Radio Association (SCARA) was established by a group of Schoharie County amateurs, along with a few from just over the County line in 1946. That date is based on the best we can find from old club records and recall of conversations with some of the original group, now all SK.

This resource provides a procedural guide for renewing an amateur radio license online through the FCC's COmmission REgistration System (CORES) and Universal Licensing System (ULS). It details the steps for creating a new FCC CORES username account, linking an FCC Registration Number (FRN) to the account, and managing FRN passwords. The document outlines the process for submitting a renewal application via the FCC ULS License Manager system, including payment of the **$35** renewal fee. Instructions cover license renewal eligibility within **90 days** before expiration and during the 2-year grace period post-expiration. The guide specifies the use of the FCC CORES web page at `https://apps.fcc.gov/cores/userLogin.do` for account setup and the FCC ULS License Manager system at `https://wireless2.fcc.gov/UlsEntry/licManager/login.jsp` for application submission. The process concludes with receiving an email from the FCC containing a link to the official license, valid for 30 days.

GMRS frequencies chart for the GMRS band; GMRS Repeater info, GMRS license info, and much more!

The Meshtastic documentation outlines critical LoRa configuration parameters for node operation, emphasizing regulatory compliance. It details settings such as Region, Modem Preset, Max Hops, Transmit Power, Bandwidth, Spread Factor, Coding Rate, and Frequency Offset. A comprehensive table provides region codes, frequency ranges (e.g., US **902.0 - 928.0 MHz**), duty cycles, and power limits (e.g., EU_433 **12 dBm**) for numerous countries, including the US, EU, China, and Japan, alongside a 2.4 GHz band option. It explicitly states that devices within a mesh must share identical _Region_ and _Modem Preset_ settings for full communication. Modem Presets, like _LONG_FAST_ (the default), optimize for either speed or range, directly impacting network congestion and message delivery delay. For instance, SHORT_TURBO offers the fastest speed and shortest range, while VERY_LONG_SLOW provides the longest range but is less reliable for mesh formation. The document also highlights specific duty cycle limitations, such as the 10% hourly limit for EU_433 and EU_868 regions, and provides command-line interface (CLI) examples for configuring these parameters.

Home of the Chester & District Radio Society. We meet weekly throughout the year with a full programme of lectures/events and activities. Our call is G5CH

Operating an **Echolink** gateway on the 4-meter band presents unique opportunities for extending VHF communications, as demonstrated by the EI4FMG node. Situated at Fieldstown, Monasterboice, this gateway provides coverage across a significant portion of Ireland's east coast, leveraging a Tait TM8100 radio and an EI4JR Echolink interface logic. My own experience with similar setups confirms the importance of strategic site selection for maximizing reach, particularly with a 122-meter elevation above sea level. Access to the EI4FMG gateway, identified by node 57006, requires a **CTCSS** tone of 88.5 Hz, a standard practice for managing access and minimizing interference on shared frequencies. The system transmits with 15 watts of power and utilizes a Sigma CAT70 @5MAGL antenna, a configuration well-suited for regional VHF coverage. The gateway also features an auto-ID every 8 minutes, ensuring compliance and clear station identification. Users can interact with the gateway using various DTMF commands, allowing for connections to specific nodes, random repeater/link or conference nodes, and managing disconnections. These functionalities streamline the process of linking into the broader Echolink network, enabling local VHF operators to communicate globally through the internet backbone.

The Lancaster & Fairfield County Amateur Radio Club is a general interest amateur radio group that offers monthly licensing exams, emergency communication activities, and social gatherings. They meet on the first Saturday of each month at 10:00 am at the Fairfield County Emergency Management and Homeland Security in Lancaster, Ohio. Meetings are public and welcome anyone interested in amateur radio, electronics, and emergency communications.

official website for DLARC. operates the W3OK repeater, offers license classes and tests, a net, assistance in ARES and RACES nets and activities, and participation in ARRL activities and competitions.

Presents the 4th edition of the IARU Region 1 Ethics and Operating Procedures for the Radio Amateur, a fully rewritten guide published in July 2026. It establishes a shared basis for respectful and effective communication within the amateur radio community, building upon over fifteen years of prior work. The document details the purposes of amateur radio, principles of non-interference, electromagnetic compatibility, and station safety. It specifies operating procedures, including listening practices, adherence to IARU and national band plans, appropriate transmission content, use of Q-codes, and the phonetic alphabet. The guide provides instructions for conducting QSOs across phone, CW, and various digital modes. Specific sections address managing pileups, participating in contesting, engaging in DX and DXpedition operations, operating portable or mobile, and conducting station testing. Further sections cover VHF and UHF operating considerations, ensuring a comprehensive resource for both experienced operators and those new to the hobby.

The website of the Radio Museum of Thessaloniki, containing historical details of the radio history in Greece, including pictures of radio pioneers and also antique radio tuners available in Greece

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 Bahamas Amateur Radio Society (C6ARS) serves as the primary amateur radio club for the Bahamian archipelago, providing a hub for operators interested in DXing, portable operations, and emergency communications. The society actively participates in Parks on the Air (POTA) activations monthly, deploying portable stations to various parks and protected areas to put The Bahamas on the air for global hunters. Additionally, C6ARS engages in the annual ARRL Field Day, setting up off-grid stations powered by batteries, solar, and generators to practice emergency preparedness and operating skills. C6ARS also offers licensing assistance and mentorship for new operators, highlighting amateur radio's role as a STEM education platform through practical applications in physics, electronics, mathematics, and computing. The club emphasizes resilient emergency communication, particularly crucial for an island nation in the hurricane belt, demonstrating how trained operators can maintain vital communication links when conventional infrastructure fails. Their regular off-grid activations serve as rehearsals, ensuring readiness for disaster response.

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).

Maltby & District Amateur Radio Society based in South Yorkshire England

For amateur radio operators seeking resilient, off-grid communication, the _MeshCom_ firmware provides a robust solution for text-based messaging over a mesh network. Utilizing LoRa modulation and the APRS protocol, this firmware is designed for low-energy consumption and cost-effective hardware, primarily operating in the 70cm band. Nodes, identified by amateur radio callsigns, can send short text messages to all participants or directly to specific callsigns, functioning as repeaters to extend network reach. The system supports automatic status and position messages, with optional sensor data for WX-Data and Telemetry. MeshCom nodes can be configured as gateways to HAMNET or the internet, enhancing connectivity options. The project emphasizes a self-building and self-healing mesh network architecture, crucial for emergency communication scenarios. Operating frequencies include **433.175 MHz** (EU, USA, Africa), 439.9125 MHz (UK), and 433.925 MHz (Norway). The firmware is compatible with hardware platforms such as ESP32/LoRa modules, RAK-WISBLOCK, and ESP32-DEV4/E22-LoRa, offering a flexible deployment for various amateur radio applications.

Presents the NED International DX Group, a **CB radio** organization established in the Netherlands on August 23, 2026, by 19NED000 and 19NED001 Henricus. The group primarily operates on the **11-meter band**, utilizing various modes including FM, AM, LSB, USB, CW, FT8, FT4, FT2 Ross, and JS8, with all digital modes permitted. Membership is free and open to active operators and SWLs. Key operating frequencies include 27.405 LSB, 27.265 USB for FT8, and 27.245 USB for JS8. The group also maintains activity on PMR Channel 10 at 446.11875 MHz FM. The organization is actively seeking volunteers for roles such as webmaster (proficient in PHP, MySQL, and security), digital eQSL and paper QSL card management, logo and banner design, and country/province directors.

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.