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This web page is part of a self-help program for licensed amateur radio operators and radio pirates.

This is a Bourne Shell script that will automagically download the FCC Amateur Radio license database, parse it, and populate a MySQL database. The database can be searched using the command line and is very fast.

Presents an interactive **Ham Bands Explorer** web application, offering a live view of all amateur radio bands overlaid on a world map. This resource displays **CQ zones** and **ITU zones**, with geographical data sourced from HB9HIL/hamradio-zones-geojson under an MIT license. The interface provides a dynamic visualization of global band conditions, enabling operators to observe activity patterns across different regions. Users can select individual countries to retrieve and display their specific band plans, with frequency coverage details loaded from CountryData.json. The tool indicates 100% frequency coverage, ensuring comprehensive data presentation for selected regions. This functionality supports detailed analysis of national regulatory variations within the amateur spectrum. The application integrates both a map view and a live view, facilitating real-time monitoring and geographical context for band usage. It serves as a practical reference for understanding international amateur radio regulations and visualizing propagation characteristics across various frequency allocations.

The **Nilex Morse Tutor** is an HTML5 web application designed to teach Morse code reception, adapting to user proficiency by adding new characters as readiness is detected. It prioritizes practice on less familiar letters, numbers, symbols, words, and phrases, while minimizing repetition of already mastered elements. The program offers multiple learning orders, including "Q7ZG..." (Ward/Jim's), "KMRS..." (PU5EPX/Koch), "KMUR..." (lcwo.net), "AENT..." (CWops CW Academy), "TEAN..." (Stephen C Phillips), "ANET..." (Vic VE3YT), and "ETI5..." (Ham Whisperer), alongside an alphabetical option. Users can customize the learning experience by enabling or disabling automatic progression, and selecting specific content categories such as numbers, symbols, words, phrases, QSO bits, Ham Radio Bands, X+Y=Z math, and units. Audio settings are adjustable for volume, speed (WPM), tone frequency, and keyshape/keying envelope, allowing for a personalized auditory environment. The interface provides visual feedback with blue bars indicating practice emphasis and gray bars for reserved characters, with clickable bars for manual character selection. Developed by "Nosey" Nick Waterman, VA3NNW, this tutor is based on earlier versions by Jim Wilson and a 1977 QST article. A significant October 2019 rewrite incorporated a new WebAudio sound library by AwesomeAidenW, improving offline functionality and mobile support. The content library was expanded to include 3000 top Google words, 2284+ General Service List words, ISO country codes, capital cities, US states, Canadian provinces, UK counties, common names, periodic table elements, quotes, Q-codes, electronic components, ham abbreviations, and example call signs. The software is distributed under the GNU GPL V2 license.

The Shiawassee Amateur Radio Association (SARA), operating under the call sign W8QQQ, serves as a non-profit amateur radio organization in lower central Michigan's Shiawassee County. Its primary objectives include public service, emergency communications, and advancing amateur radio through education and technical excellence. The club maintains a weekly _Skywarn_ 2m net on the N8VDH repeater at 147.02 MHz (+.6 MHz, 100 Hz tone) every Monday at 7:00 PM, actively seeking more local hams to participate. SARA also facilitates VE testing, with upcoming sessions like the one scheduled for April 23, 2026, at 6:30 P.M., requiring pre-registration by April 20. SARA holds monthly meetings at the James P. Capitan Building in Corunna, typically on the second Tuesday of each month at 7:00 PM local time, excluding December's social event. They offer Zoom meeting options for members unable to attend in person. Annual dues are $15.00, with a reduced rate for new licensees, making it a very low-cost club. The organization actively seeks more EMCOMM assistance from all Shiawassee County hams, not just club members, to bolster their ARPSC (ARES/RACES) capabilities, noting that only about **10** out of **200+** county hams are currently active in ARES. They also maintain a Google Group, "W8QQQ," for electronic notifications and club communications.

Signal Stuff operates as an online retail outlet specializing in amateur radio antennas and related accessories, with a core mission to financially support educational platforms like HamStudy.org and ExamTools.org. The product line prominently features their Super-Elastic Signal Stick™ antennas, available with SMA-F, SMA-M, and BNC connectors, designed for various handheld transceivers including Baofeng, Icom, Yaesu, and Kenwood models. The site details product specifications, pricing, and a lifetime warranty for the Signal Stick™ antennas, emphasizing their role in funding free ham radio licensing study guides and exam administration software. Proceeds from antenna sales directly contribute to the development and maintenance of HamStudy.org, a free online resource for amateur radio license preparation, and ExamTools.org, software utilized by Volunteer Examiner (VE) teams for efficient exam administration. The site also promotes HamBook.org, a free series of comprehensive study guides, which integrates with the HamStudy app and website through links and QR codes for an adaptive learning experience. This business model links product sales to community support, providing essential tools for aspiring and upgrading amateur radio operators.

Operating from Banana Island, Sierra Leone (AF-037), the 9L2019 DXpedition by F6KOP and a ten-operator team used the callsign 9LY1JM from January 9-21, 2019. This detailed report covers the logistical challenges, including securing visas and licenses with local assistance from Mark 9L1YXJ and Gregory of Dalton’s Guest House. The team deployed monoband quarter-wave verticals on the beach and two Beverage on Ground (BOG) antennas for Europe/Asia and the USA, operating four stations simultaneously. Technical hurdles encountered included high tides submerging antennas, requiring repositioning, and persistent QRM between closely spaced stations, mitigated by doubling filters. CW signal irregularities at 30-32 WPM were resolved by PC and WINTEST restarts. A significant FT8 logging bug was identified and corrected with on-site software. Despite these issues, the team logged over 4,000 QSOs in the first 24 hours, averaging 5,000 QSOs daily, with a peak of over 6,000 in one day. Propagation varied, with excellent 160m conditions on January 12 yielding over 750 QSOs, and a later four-hour opening pushing the 160m total past 1,600. High bands were challenging due to low solar activity, but mid-bands provided intense pileups and rapid continent-wide contacts. The DXpedition concluded with nearly 50,000 QSOs, including a successful school QSO with Collège Doisneau de Sarralbe (57), managed by F1ULQ and F6KFT.

A real-time, responsive map view of APRS (Automatic Packet Reporting System) information, CWOP (Citizens Weather Observer Program), and other APRS-IS sources across the world. The N2RWE Real-time APRS Map leverages cutting-edge technologies and custom software to present a dynamic and user-friendly platform for visualizing Automatic Packet Reporting System (APRS) data. This web application aggregates real-time station locations from various public sources, offering a comprehensive view of APRS activity. It caters to both novice and experienced users by providing features like Maidenhead Grid maps, station lists, license plate searches, and advanced tools for geolocation, address lookup, and data analysis. Additionally, the platform integrates with Summits on the Air (SOTA) information, enhancing the experience for SOTA enthusiasts. By actively supporting the #APRSThursday net, the N2RWE Real-time APRS Map fosters a collaborative environment for the APRS community.

HAMRS v2.52.0 provides a portable logging solution for amateur radio operators, supporting macOS, Windows, Ubuntu, Raspbian, iOS, and Android platforms. The software includes offline databases for POTA parks and US callsigns, facilitating logging without internet connectivity. It features ADIF import/export capabilities, enabling one-click uploads to QRZ.com. Rig control is supported through native _Hamlib_ and _FLRIG_ integration, alongside compatibility with _WSJT-X_ for digital modes. Recent updates in v2.50 introduced a QSO Map for visualizing contacts with band colors and filtering, real-time solar and HF/VHF propagation conditions, and a dedicated logging template for ARRL Field Day exchanges. An interactive US Band Plan displays privileges and sub-bands, while a live POTA Spots Map highlights the active park and offers license-aware spot filtering.

The Lakeway Amateur Radio Club, identified by its callsign _W2IQ_, serves as a significant hub for amateur radio operations within the Lakeway Area. This organization demonstrates a strong commitment to regulatory compliance and amateur radio accessibility through its robust Volunteer Examination (VE) Team. As an ARRL-accredited entity, W2IQ facilitates online FCC amateur radio licensing examinations, providing a critical service for new licensees to enter the hobby. This infrastructure supports the growth of the amateur radio community by streamlining the licensing process, making it highly accessible to prospective operators. The club's technical contributions extend to fostering diverse operational interests, though specific repeater or APRS infrastructure details are not explicitly detailed. Their emphasis on licensing and education, particularly through remote testing protocols, highlights a modern approach to amateur radio entry. This focus on **VEC protocol coordination** ensures a consistent pathway for individuals seeking to obtain or upgrade their amateur radio licenses. The club also promotes engagement with various aspects of the hobby, indicating a broad interest in amateur radio activities and technical development within its geographic sphere of influence. Their dedication to supporting new radio amateurs underscores a foundational role in regional frequency management and community building.

FM-DX Webserver is a cross-platform web server created for FM DXers to manage their radio receivers via a web interface. The project provides a detailed task list, Discord community for updates and support, and installation tutorials for both Windows and Linux. Users can contribute to the project by opening issues or submitting pull requests. The web server is bundled with necessary libraries and licensed under GNU-GPL v3. Always ensure compliance with local laws before hosting a web server. Enhance your FM DXing experience with FM-DX Webserver!

The most basic form of repeater receives communication on one frequency and re-transmits it on a different frequency, a process known as duplex communication. This capability significantly extends the range of handheld and mobile radios, as repeaters are typically situated at elevated locations with high-gain antennas and greater transmit power. Repeaters commonly operate with FM modulation on the VHF (30 MHz – 300 MHz) and UHF (300 MHz – 3 GHz) amateur bands, which are ideal for portable and mobile devices. Access to repeaters is often controlled by a CTCSS or PL tone, an inaudible signal that prevents the repeater from retransmitting background noise. This mechanism ensures efficient use of the frequency and prevents illegal continuous transmission. Canadian regulations, for instance, require an Advanced amateur radio license and an available frequency within the band to set up a repeater, each assigned a unique call sign and transmit frequency. Configuring a radio for repeater use involves knowing the repeater's transmit frequency, its receive frequency offset (e.g., -600 KHz for VHF or +5 MHz for UHF), and the necessary CTCSS tone. The article references resources like Repeater Book for locating repeaters and provides practical examples for initiating and concluding a basic repeater session, emphasizing clear identification and concise communication.

This project addresses the need for a 50 MHz Amplifier providing substantial power for Australian "Advanced Licensees" permitted to use 400W PEP in the 52-54 MHz band. In regions limited to 100W PEP due to TV channel usage, this initiative aims to enhance power output for transceivers with lower capabilities on the 6m band.

Since December 2020, the FCC no longer prints paper amateur radio licenses. Licensees must obtain official electronic copies by logging into the FCC's Universal Licensing System (ULS) with their FRN and password. Detailed instructions are available on the FCC website or by contacting the FCC Licensing Support Center.

This page presents the Arduino radio receiver project created by EasyEDA in 2024. It includes design drawings, BOM, and project details. The content is aimed at hams interested in building their own radio receiver using Arduino technology. The project is shared under a CC BY-ND 4.0 license, allowing others to replicate and modify it. The page also includes comments from project members, making it a useful resource for hams looking to explore radio receiver construction.

Online browser-based resource for your computer, tablet or other mobile device. Use this review and practice exam resource with the current editions of ARRL License Manuals.

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.

Operating amateur radio repeaters involves understanding frequency offsets, CTCSS tones, and the basic signal flow through a repeater system. This resource details the fundamental concepts of repeater operation, including the distinction between input and output frequencies, the role of **CTCSS (Continuous Tone-Coded Squelch System)** for access, and the typical frequency bands utilized for local communication. It clarifies terms such as "simplex" versus "duplex" operation and provides a diagram illustrating the signal path from a handheld transceiver to a repeater and back to another station, emphasizing the range extension repeaters offer. The article further explains practical aspects like identifying a repeater's offset (e.g., +600 kHz for 2-meter band) and the necessity of programming the correct tone. It compares the operational benefits of using repeaters for local communication over direct simplex contacts, highlighting how repeaters overcome line-of-sight limitations. The content is structured to assist new licensees in confidently making their first repeater contacts, providing a foundational understanding of how these critical infrastructure components facilitate wider area coverage for VHF/UHF amateur radio.

Presents DJ5IL's personal amateur radio station, detailing his journey as a licensed operator since 1973. The resource covers his **shack setup**, including an Elecraft K4D, Icom IC-7610, and various vintage transceivers like the Drake 2-B, along with a SPE Expert 1K-FA amplifier. Antenna systems include a PRO.SIS.TEL RD1524T rotary dipole for 40/20/15/10m at 15m height, an 18m vertical dipole with an SGC SG-230 tuner for 3.5-30 MHz, and an inverted-V dipole for 80m. The site features a **QSL gallery** showcasing his custom card designs and outlines his QSL policy, emphasizing the exchange of unique, personalized cards over generic confirmations. It also includes a detailed operator's biography, tracing his early fascination with radio, obtaining his license at 16, and memorable QSOs, such as a contact with his blood-relative W3NZ. The resource also delves into the historical significance of amateur radio's role in pioneering shortwave communication following the 1912 International Radiotelegraph Convention, which initially relegated amateurs to wavelengths of 200 meters and shorter. DJ5IL's philosophy on "ham spirit" is discussed, stressing the unpolitical nature of amateur radio as a global fraternity.

The amateur radio club serving Johnson County Tennessee and northeastern Tennessee and southwestern Virginia. Open to all licensed hams.

Hamword is a Winlink-based game that mimics the popular five-letter word guessing game, Wordle. The goal of this game is to give hams a way to practice their Winlink skills while having some fun guessing an unknown five-letter word. The only thing you need to play the game is an amateur radio license and an operational Winlink account.

Callsearch is a Windows-compatible software application, version 7.3.6.1, designed for looking up **US** and **Canadian** amateur radio **call signs**, as well as US GMRS call signs. It replaces the previous FCC Lookup program, offering similar functionality with some scaling down, notably replacing Ten-Ten lookup with GMRS call sign search. Key features include searching active and non-active US records, wild card searches for US call signs, and specific US county and city searches using a November 2020 zipcode database. The software provides geographic coordinates, sunrise/sunset times, and license class display. Users can configure themes, save search output in CSV format, and perform batch file processing to CSV. Version 7.2 and later support multiple county selections and an option to include counties within districts. It includes a digitally signed certificate and supports manual and automatic updates of the Master FCC Database. The program runs on Windows 32 and 64-bit platforms, and on Mac and Linux using the WINE emulator with WINEPFX set for Windows 8 or later.

A modern, free online study tool for US amateur radio exams. It provides current NCVEC question pools for all license classes (Technician, General, and Extra). Features include a smart practice mode that tracks your weak areas and provides detailed explanations to help you pass faster.

"The QRP Adventures of VE3FI" is a captivating blog that chronicles the amateur radio experiences of Bill, VE3FI, over two decades. Holding Canadian Basic, 5-word CW, and Advanced licenses, Bill's main interests include DXing and QRP operations. The blog offers detailed accounts of his portable activations, such as a recent outing in March 2025, where he achieved impressive DX contacts on the 10-meter band using just 8 watts and a Hamstick antenna. Bill's engaging storytelling and practical insights make this blog a valuable resource for both seasoned and aspiring amateur radio enthusiasts.

Connecting to the global *EchoLink* network via a web browser simplifies internet linking for licensed amateur radio operators. This web application provides a direct interface, eliminating the need for client software installation. Users can log in with their validated callsign and password to access the system, facilitating contacts with other stations, repeaters, and conferences worldwide, much like traditional VoIP applications but tailored for amateur radio. The interface offers essential controls for managing connections, including selecting specific stations or conferences from a dropdown list, initiating a connection, and disconnecting. Features such as a 'Call CQ' button allow users to signal their availability for a contact, while options for low bandwidth operation and accepting incoming connections optimize performance and accessibility. Audio device selection ensures proper microphone and speaker integration with the web client. Validation of an amateur radio license is a prerequisite for full access, ensuring that only authorized operators utilize the network. The system prompts unvalidated users to provide an email address and password to begin the validation process, which typically involves submitting proof of license. This free service extends the reach of amateur radio communications globally, bridging geographical distances through internet connectivity.

AA9PW offers free practice exams for all three US license classes plus international licenses like Canadian and Australian. The site generates random tests from the current question pools, simulating the actual exam experience. You can choose between online exams or printable PDF versions for offline study. The site maintains a simple, no-frills interface that loads quickly even on slow connections. Practice tests provide immediate feedback with score reports highlighting areas needing improvement.

This document provides a comprehensive guide on renewing an US amateur radio license through the Federal Communications Commission (FCC) using the new COmmission REgistration System (CORES). Published on QST October 23, it outlines the necessary steps for creating a CORES account, associating it with a Federal Registration Number (FRN), and completing the renewal application. Key points include the requirement of a $35 fee for the renewal process, which must be paid online after the application is submitted. The guide emphasizes the importance of logging into the FCC License Manager system during the renewal window and provides instructions on how to navigate the renewal process, including obtaining confirmation and access to the renewed license. Additionally, it offers contact information for FCC support and links to further resources for assistance.

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.

Join the World Wide Check-In every Saturday at 16:00 UTC on Talk Group 91 via the Brandmeister Network. Started in 2015 by Dick K6SUU, the net has grown with volunteer Net Controllers ensuring smooth operations. Check-in securely with a robust logging system. View log archives, upcoming nets, and schedule. Interested in becoming a Net Controller? Contact the admin team. Licensed Radio Operators can participate, while others can listen live on TG 91. Stay connected and join the global ham radio community with World Wide Check-In.

Accessing the official Estonian amateur radio call sign database is facilitated through this resource, which offers a direct search utility for **ERAU** registered licensees. Users can input a call sign to retrieve associated public information, ensuring accurate identification of Estonian stations. The system directly queries the national amateur radio society's records, providing real-time data on active **ES-prefix** operators. This utility is distinct from global callbook services, focusing exclusively on Estonian amateur radio operators. It serves as a primary source for verifying call sign authenticity and operator details within the country's regulatory framework. The interface is streamlined for quick lookups, making it efficient for DXers and contesters targeting Estonian entities. The resource's direct integration with the Estonian Radio Amateurs Union (ERAU) database ensures the presented information is current and authoritative, reflecting the latest licensing status and operator details for the amateur radio community.

Enables digital radio transceivers to function as versatile data communication nodes, supporting applications like _Reticulum_ networking, messaging with Sideband, and acting as a LoRa-based KISS-compatible amateur radio TNC. This firmware transforms off-the-shelf development boards into powerful, long-range data radios, facilitating robust communication over significant distances, potentially achieving **hundreds of kilometers** with optimal setups. It supports a range of hardware, including unsigned.io's Handheld RNodes (v2.x and v1.x), LilyGO T-Beam v1.1, LilyGO LoRa32 (v2.0, v2.1), and Heltec LoRa32 v2 devices. Compatibility extends to transceiver modules utilizing Semtech SX1276, SX1278, SX1262, SX1268, and SX1280 chips, provided they have an SPI interface and exposed interrupt pins. Installation is streamlined via the `rnodeconf` utility, part of the `rns` package, simplifying the flashing process for users. The project operates under the GNU General Public License v3.0, promoting open development and user freedom. It encourages community involvement in building and deploying RNodes for various purposes, from personal communication to establishing resilient, decentralized networks. The firmware's design emphasizes flexibility, allowing for diverse configurations to suit specific operational requirements.

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.

HamDaily presents a **real-time dashboard** for amateur radio operators, integrating live propagation data, current space weather conditions, and a continuously updated stream of DX, POTA, and SOTA spots. The platform also curates news headlines and articles from more than 16 distinct amateur radio sources, offering a centralized hub for daily information. Beyond its real-time data feeds, HamDaily includes practical tools such as practice exams for licensing, a Morse code trainer, a repeater finder, and satellite pass predictions, catering to both active operators and those preparing for their licenses. The resource distinguishes itself by fusing diverse data streams into a single, cohesive interface, allowing operators to quickly assess band openings and relevant activity. The "Today's Roundup" section provides a daily digest of featured articles, ranging from technical insights like "My one-day Tech class 'bag of tricks'" by KB6NU to operational accounts such as QRPer's "Eight Parks, One Missing Mast, and the Midnight Sun: A CW-Only POTA Trek." This aggregation of content, combined with **live band data** and Kp index readings, offers a comprehensive operational awareness tool for the ham radio community.

Open Signal, a software application for Windows 10/11 and 64-bit Linux, facilitates the transmission of color pictures, photo files, and text over HF and VHF amateur radio bands. It integrates its own error-corrected OFDM digital picture mode, delivering pixel-exact images in under a minute, with classic analog SSTV across six families: Martin, Scottie, Robot, Wraase, PD, and MMSSTV's MP/MR, featuring automatic VIS mode detection on receive. The application offers four distinct sending methods, including byte-exact JPEG transfer, a hybrid mode utilizing internet for full quality with a short RF link, and its proprietary digital waveform. This self-contained executable eliminates the need for external software like FLDIGI, Hamlib, or virtual audio cables, simplifying setup. It includes a self-filling logbook that integrates with Wavelog/Cloudlog, eQSL, and provides UDP ADIF broadcast. Built-in spotting features include PSK Reporter, DX cluster announcements, and APRS-IS position beacons. The receive-only version is permanently free, while a full license, enabling transmit capabilities and access to the live network, is available for an annual or lifetime fee. The software is actively maintained, unlike EasyPal, which has not seen updates since 2014.

HAMgpt offers a personalized amateur radio experience, leveraging AI to provide real-time operational guidance. It integrates live propagation data, current band conditions, and operator-specific context, including callsign, QTH, license class, and station equipment, to deliver relevant answers. The system can identify open HF, VHF, and UHF bands, suggest workable DXpeditions and POTA/SOTA activations, and provide accurate repeater offsets and CTCSS/DCS tones for local repeaters. Unlike general-purpose chatbots, HAMgpt avoids fabricating frequencies or license privileges, instead relying on actual data for its responses. It supports antenna design calculations for various types like Yagi, dipole, vertical, and magnetic loop antennas, offering to-scale dimensions. The platform also assists with license exam preparation and provides satellite pass predictions tailored to the user's location. It supports multiple countries, including the United States (FCC Technician, General, Extra), Canada, the United Kingdom, Australia, Japan, and Argentina, incorporating their specific band plans and power limits.

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.

DecoDXLog is a station logbook application for Windows, designed to integrate seamlessly with the _Decodium_ family of software, as well as _WSJT-X_ and JTDX, by receiving QSOs via UDP. It operates around a local SQLite file, providing automatic callbook lookups from QRZ.com XML or HamQTH to complete log entries with name, QTH, and locator data. The software tracks 15 different awards, including DXCC, WAZ, WAS, WPX, IOTA, POTA, and SOTA, calculating progress in real-time and allowing confirmation via LoTW, paper cards, or eQSL. It also features comprehensive statistics, a world map displaying worked locators and cluster spots, and a built-in DX Cluster client that aggregates data from DX Spider/CC Cluster, Reverse Beacon Network, HamAlert, and POTA activations, providing alerts for new DXCC, band, or mode. The application includes a CW keyer/decoder, a contest mode with real-time scoring and Cabrillo export, and robust QSL management for LoTW, QRZ Logbook, eQSL, and Club Log. An optional DecoDXLog Cloud feature enables synchronization of QSOs, station profiles, and settings across multiple devices, ensuring a consistent operating environment. The software is open-source under the GPL-3.0 license, developed by IU8LMC and contributors, and supports lossless ADIF import/export, making it compatible with existing logs. It also integrates with _DecoRotor_ for antenna control, allowing operators to point their antenna directly from the logbook interface.

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.

Fast Track offers simplified study materials designed to get you licensed quickly. Their approach focuses on understanding concepts rather than memorization. The site provides condensed study guides, mnemonic devices, and tips for remembering formulas and technical information. Their practice exams include explanations that connect to real-world applications, helping you understand why answers are correct. The resources are particularly helpful for visual learners, with diagrams illustrating complex concepts.

The GOTAhams Amateur Radio Club offers a welcoming environment for anyone interested in ham radio, from complete beginners to seasoned operators. They host various activities like park outings, license testing sessions, and nets, fostering a hands-on learning experience. They emphasize inclusivity with diverse member interests and ages. If you're curious about ham radio, the GOTAhams seem like a friendly club to check out.

W4EEY offers specialized preparation materials focused on the mathematics and electronics theory portions of ham exams. Their approach breaks down complex formulas into step-by-step processes, making them accessible even to those without strong math backgrounds. The site includes calculators for common ham radio formulas, interactive circuit diagrams, and in-depth explanations of electronic principles. Their materials are particularly valuable for the Amateur Extra exam, where technical content becomes more challenging.

We are a non-profit amateur ham radio association located in the rural Lakes Region of New Hampshire. We actively promote 2 way radio, also known as ham radio. Our members are friendly and knowledgeable. If you are a first time visitor and are curious about this great hobby, we provide testing for ham licenses, have fun get-togethers, and are ARES affiliated for emergency communications. We also are home to 6 repeaters. Three are located on Bennett Hill in Ossipee, one on Mt. Rowe in Gilford and two on New Durham Ridge, New Hampshire.

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

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.

The Open NEC2 Viewer for Android provides a mobile platform for **NEC2** antenna modeling, enabling users to visualize and analyze antenna designs directly on their devices. It integrates the robust NEC2 computational library, leveraging the Method of Moments for full-wave electromagnetic analysis, and utilizes the Google Filament renderer for interactive 3D visualization of antenna structures, segmentation, and wireframes. The application facilitates the calculation of geometric parameters and antenna characteristics across specified frequency ranges. Key functionalities include parametric analysis, offering real-time computation of **radiation patterns** (RP), antenna gain, Voltage Standing Wave Ratio (VSWR), and input impedance. Users can configure flexible calculation settings to control scan step, frequency range, and various control cards, allowing for detailed electromagnetic analysis tailored to specific design requirements. Designed for radio engineers, antenna developers, radio amateurs, and students, the app is distributed as open-source software under the GNU General Public License v3.0. It provides a portable and accessible tool for electromagnetic modeling, making advanced antenna analysis capabilities available on Android devices.

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.

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.

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 Meshtastic project leverages _LoRa_ radio protocol to establish a long-range, off-grid communication platform, functioning as a decentralized mesh network. It facilitates sending and receiving text messages using inexpensive LoRa radios, eliminating reliance on traditional infrastructure or a smartphone for core mesh communication. Key features include encrypted communication, extended battery life, and optional GPS-based location services, with radios designed to rebroadcast messages to ensure delivery across the mesh. This system has demonstrated a record range of **331km** and is entirely community-driven and open source, with its codebase hosted on GitHub. Unlike conventional amateur radio, Meshtastic operates on LoRa frequencies generally accessible without specific licenses. Each Meshtastic radio can pair with one phone for message exchange, and support is provided by volunteers.