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The resource details a novel approach to Morse code (CW) reception for hearing-impaired operators, focusing on a handheld device that translates CW signals into tactile vibrations. It explains how this device allows users to perceive the patterns of dots and dashes through physical feedback from a shaker, addressing the challenges of auditory discrimination for those with hearing loss. The content highlights the potential for this tactile method to aid in CW learning and interpretation, even suggesting benefits for operators with normal hearing by providing an alternative sensory input. The article also mentions the device's _patent-pending_ status and its availability to members of the _Long Island CW Club_ and the general public. It provides contact information for further inquiries about this innovative tool.

Our Article about the ICOM IC-7760 announce done by ICOM at the annual Ham Fair in Tokyo

The TY0RU DXpedition to Benin in 2022 achieved over **100,000 QSOs** from Cotonou, IOTA AF-051, operating across 160m through 6m bands using CW, SSB, and FT8 modes. The operation involved a team of 12 operators, including _F5RAV_, _F4WBN_, and _F1TCV_, utilizing multiple stations with transceivers like the Icom IC-7300 and IC-7610, paired with amplifiers and various antennas such as verticals, dipoles, and a 4-square array for 40m. The expedition's log is available on Club Log, supporting OQRS for both direct and bureau QSLs, with F5RAV serving as the QSL manager. The site details the team's travel, setup, and operational challenges, including local conditions and equipment deployment, offering insights into the logistical complexities of activating a rare DXCC entity. Donors are acknowledged, and a photo gallery documents the activity.

This online tool is a specialized web-based utility for orchestrating multi-operator HF contest and DXpedition activities. This tool, _Rig2Cast_, assists station managers in meticulously planning operator shifts, ensuring adequate rest periods, and crucially, preventing operational conflicts such as assigning a single operator to multiple radios concurrently. It integrates support for SO2R operations and offers real-time simulation of operator requirements, a feature I've found invaluable in pre-event planning. The scheduling engine incorporates five distinct algorithms: greedy fairness balancing, round robin, maximum coverage, simulated annealing, and a fatigue-aware model. These algorithms enforce critical constraints like minimum/maximum shift durations and mandatory rest times across all radios, which directly impacts operator performance over long events. My field experience confirms that such robust constraint management is essential for maintaining peak efficiency during intense operations. Key features include distributed multi-station support, printable per-operator cards, flexible band activity windows, and real-time editable operator slots. The drag-and-drop shift management, coupled with full cross-radio swap support and smart constraint feedback (valid targets in green, invalid in red), streamlines complex scheduling tasks. The system's design ensures user data privacy, as no information is stored on the server; schedules are saved and reloaded locally.

A web page dedicated to amaterur radio scouting. Scouting and Ham Radio — From Yesterday, Toward Tomorrow. Radio Merit Badge, Morse Code Interpreter Strip, Jamboree on the air

The Olivia digital mode, a **Multi-Frequency Shift Keying (MFSK)** radioteletype protocol, is specifically engineered for robust communication under difficult propagation conditions on shortwave radio bands from 3 MHz to 30 MHz. Developed by Pawel Jalocha in 2003, Olivia signals can be decoded even when the noise amplitude exceeds the digital signal by over ten times, making it highly effective for transmitting ASCII characters across noisy channels with significant fading and propagation phasing. Early on-the-air tests by Fred OH/DK4ZC and Les VK2DSG on the Europe-Australia 20-meter path demonstrated intercontinental contacts with as little as one-watt RF power under favorable conditions. Common Olivia modes are designated as X/Y, where X represents the number of tones and Y is the bandwidth in Hertz, with examples including 8/250, 16/500, and 32/1000. The resource clarifies that Olivia, unlike some other digital modes, produces a constant envelope, allowing RF power amplifiers to achieve greater conversion efficiencies and making it less prone to non-linearity. Operators are advised that **Automatic Level Control (ALC)** can be set higher than no meter movement for MFSK modulation, as long as it's not driven past its high limit, contrary to common misinformation about other digital modes. The Olivia community encourages voluntary channelization on suggested calling frequencies, such as 14.0725 MHz for 8/250, to facilitate initial contacts, especially for signals below the noise floor. The Olivia Digital DXers Club provides links to Groups.io, Facebook, and Discord for community engagement and offers details on QSO parties.

DX web cluster that offers features for both registered and unregistered users. Unregistered users can view spots, filter by band and mode, search for callsigns, while registered users get all that plus the ability to submit spots, upload logs, see DXCC country status, antenna pointing info, real-time maps of spots, email alerts for DXCC countries on-air, and more. Basically, register for free to get the full DX cluster experience.

Learn about the HAMTV Digital Amateur Television (DATV) transmitter on the International Space Station (ISS), transmitting video and audio in MPEG-2 format using the DVB-S protocol. Discover its history, installations, failures, and repairs, as well as the current status and live video feed. Explore the technical details and challenges of the HAMTV transmitter, including power output, polarization, and antenna location. Find recordings of previous transmissions and understand the potential signal reflections caused by various ISS components. Stay updated on the latest developments and activities related to HAMTV from the ISS.

The ICOM IC-705, a popular QRP transceiver for portable operations, often presents unique challenges for field deployment. This resource details practical solutions for common portable setup issues, particularly for _Parks on the Air_ (POTA) activations. It describes a custom bracket for connecting antennas to the IC-705 through a backpack's antenna flap, utilizing a BNC female-to-female chassis mount connector to mitigate cable tangles. The author shares experiences with a DIY magnetic loop antenna, noting its ease of tuning with the IC-705 and successful CW contacts on 40 and 20 meters over distances exceeding **1000 miles**. Another modification presented is a strain relief solution for the microphone cord, replacing the standard spring clip with an easier-to-attach method. The page also mentions using a _Wolf River Parks antenna_ for POTA activations and references the QRPGuys DS-1 antenna as another portable option. Firmware updates and integration with an LDG Z11-Pro II auto-tuner are also discussed.

Operating amateur radio satellites presents unique challenges, particularly concerning antenna design and signal propagation. Juan Antonio Fernández Montaña, EA4CYQ, recounts his three-year journey into satellite communication, starting with initial guidance from EB4DKA. His early experiments involved a portable 1/4 wave VHF antenna with four 1/4 wave ground planes, designed for hand-held use to adjust polarity. This setup, paired with an FT-3000M transceiver, allowed full-duplex operation on **VHF** transmit and **UHF** receive, proving effective for early contacts on satellites like AO27, UO14, and SO35. EA4CYQ's experience highlights the critical role of coaxial cable loss and antenna polarization. After encountering significant signal degradation with longer RG213 runs, he experimented with a 1/2 inch commercial cable, noting improved reception but persistent fading due to varying satellite polarities. This led to the construction of an **Eggbeater II** antenna, an omnidirectional UHF design offering horizontal polarization at the horizon and circular right polarization at higher elevation angles. Subsequent modifications resulted in the directional **TPM2** antenna, which provided sufficient gain for LEO satellites with a wide 30-degree lobe, enabling consistent contacts from his home station. The article concludes with practical insights on the performance of the Eggbeater II for both UHF and VHF, and the TPM2 for UHF, emphasizing their utility for portable and fixed operations. EA4CYQ's journey underscores the iterative process of antenna development and the importance of adapting designs to overcome real-world propagation challenges in satellite communications.

The ZL1WTT resource details an experimental software-based Digital Amateur Television (DATV) system, demonstrating the multiplexing of up to six standard-definition (SD) and one high-definition (HD) channel utilizing _h264 compression_. The author encountered peak data rates reaching 32 Mbit/s, necessitating a shift to Freeview and Sky settings (22.5M Sym/s 3/4FEC) to manage bandwidth. The setup employs four networked computers, with a laptop functioning as the multiplexer to re-code PIDs for various inputs, including looped MPEG2 playlists, MPEG2 encoder card input from a VCR, satellite feeds, and an off-air UHF receiver. The system highlights the inherent flexibility of the DVB transport stream, supporting diverse formats such as MPG2, h264, AC3, and AAC. A significant advantage of this software-defined approach is the absence of video quality degradation from stored MPEG2 files to the displayed output, coupled with the ease of reconfiguring settings for MPEG2 encoder cards (e.g., size, bit-rate, frame rate, video input, coding format) and satellite receiver cards (e.g., frequency, LNB volts, symbol rate, FEC). The author also discusses the development of a new graphical user interface (GUI) using _Gambas_ for Linux, aiming to simplify configuration for this DATV project. Specific hardware components mentioned include Hauppauge WinTV PVR-150 and Nova-S plus cards, with a focus on optimizing analog video input via Y/C (S-video) to minimize frequency roll-off. The resource also provides insights into data rates for HD (1080i) content, recommending 8 to 12 Mb/s for optimal performance. Software utilized includes _Ubuntu Studio 10.04_, WinFF, VLC, and TMPGEnc Editor, underscoring the project's reliance on open-source tools and a foundational understanding of LAN networks and DVB transport streams.

Allstar Linked Repeaters On The Air (ALROTA) is a community-focused platform aimed at strengthening connections within the amateur radio world. It offers a range of features, such as personalized connection schedules, net discovery tools, and a dedicated Radio Check Hub, all designed to improve the radio experience. Additionally, ALROTA supports emergency communication services and provides training opportunities for amateur radio

A website deticated to Boathancors, with lots of pictures of some of the most popular ol tube radios from Hallicrafters, Hammarlund, Heathkit, Lafayette, National, Zenith and some projects. Boatanchor is amateur radio slang for heavy old tube radio equipment. Originally derogatory, the term is now used affectionately. Seeing an old set working like new after careful repair, cleaning, and alignment gives one great satisfaction.

This page explores the World Wide Flora and Fauna (WWFF) and Parks on the Air (POTA) programs, highlighting their shared goals, distinctive features, and how they complement each other. It is designed for park enthusiasts who enjoy participating in both programs, offering insights, tips, and resources to maximize enjoyment and success in portable operations from natural areas. Whether you're new to park activations or a seasoned operator, this guide celebrates the opportunities offered by both WWFF and POTA, fostering appreciation for all aspects of amateur radio in nature.

After years of reliable performance, a 26-year-old Icom 706MK2G exhibited an unusual deviation during FM transmission, with the actual frequency being 10kHz off from the displayed frequency. Additionally, the power meter showed a sharp dip during transmission. Upon investigation, it was discovered that the FM VCO voltage adjust variable had become dirty and sluggish over time. By adjusting the variable capacitor and cleaning it with switch cleaner, the issue was resolved, restoring stable power output and accurate frequency transmission.

Yuris YL2GM will visit Lakshadweep Islands and do one-man operation on the air as VU7W from April 15 to 29, 2023

ESA1 features a state-of-the-art workshop capable of performing repairs, calibrations, and restorations on antique radios, jukeboxes, and gramophones. We return your vintage equipment to you in the best and most original condition possible. ESA1 is based in Italy.

The article describes ongoing issues with a new TS590s transceiver, including intermittent reception and transmission failures. After a repair diagnosed as a "Control Unit interruption," the problem persisted. The author discovered the cause was a poorly crimped CN601 connector on the Control Unit board, leading to signal loss when moved. Soldering the connector resolved the issue. Similar problems reported by other users suggest a potential defect in the cables, pointing to a possible manufacturing issue.

Ham2K PoLo is an android Portable Logger, Support for Parks On The Air (POTA), Summits On The Air (SOTA), Field Day, Winter Field Day, Worldwide Flora and Fauna (WWFF) and more. Fast and efficient yet fully-featured: QRZ.com name lookups, QSO Maps, offline data files, contact rates, duplicate warnings, POTA spots, search parks nearby or by name, etc.

SOTA Goat is an essential tool for Summits On The Air participants, offering an offline summit database, comprehensive search features, and real-time spotting through SOTAwatch3. Designed for iOS devices, it aids in planning and completing activations seamlessly.

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 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 article details the repair of an Elecraft K3 transceiver experiencing an "ERR 12V" issue, causing reduced output power. The problem, common in these units, stems from inadequate pin strips carrying high DC current to the PA unit, leading to overheating and poor conduction. The author identified the faulty connectors and implemented a bypass using existing PCB pads, effectively rerouting the power and resolving the error. This straightforward fix highlights the importance of robust electrical connections in high-current applications, restoring the K3's full functionality.

Callook provides a **USA amateur radio callsign lookup service** with data current as of March 25, 2026. The platform allows users to search for valid callsigns and retrieve detailed information, including geographic coordinates sourced from the Bing Maps API. A mathematically calculated **grid square** is derived from these coordinates, though accuracy is not guaranteed due to reliance on external services. The service supports multiple access methods, including a browser search plugin, direct API access with a reference, and plain text output for integration into other applications or scripts. This tool facilitates rapid identification of US amateur radio operators, offering an alternative to other callbook services. Its API access enables developers to integrate callsign lookup functionality into custom applications, streamlining data retrieval for logging software or contest management. The direct presentation of FCC data, combined with grid square calculation, assists DXers and contesters in verifying contact information and location details during on-air operations.

The Parks on the Air website is dedicated to international portable amateur radio operations from national/federal and state/provincial parks. It provides rules, guides, and resources for ham radio operators looking to participate in emergency awareness and communications. The site also offers a book exploring the process of park activations and hunting for those activations, with advice and motivation from experienced operators. Visitors can make contributions to support the site's overhead costs and keep it ad-free. The site is a valuable resource for hams interested in getting active in the growing POTA community.

Join Thomas (K4SWL) as he shares his experience activating a POTA site using the Elecraft KX2 AX1 combo. Follow along on his journey from a podcast recording session to a quick POTA activation, showcasing the ease and efficiency of this portable setup. Discover the joy of getting on the air with minimal setup time and maximum enjoyment, perfect for hams looking for a grab-and-go solution. Learn about the benefits of using the AX1 antenna and how it can enhance your portable operations, all while supporting QRPer.com through affiliate links.

This resource details **cooling modifications** for Ameritron AL82, AL1200, and AL1500 HF amplifiers, specifically addressing heat issues encountered during high-duty-cycle digital mode operation. The author, WD4NGB, observed excessive heat in the tank area and band switch on an AL82, attributing it to insufficient exhaust over the 3-500 tubes and a complete lack of exhaust over the tank area. The modifications aim to prevent common failures such as damaged band switches and deformed insulating materials by increasing airflow and exhaust area. The page describes adding five holes to the chassis for enhanced cooling to the band switch and tank area, alongside enlarging the exhaust area over the inner 3-500 tube and the tank area on the amplifier cover, utilizing expanded metal for safety and RF shielding. The original cover featured 26.25 square inches of exhaust; the modified version significantly increases this to 48.5 square inches over the tubes and introduces an additional 15 square inches over the band switch. These changes are intended to resolve heating problems encountered during heavy, 100% duty cycle use in modes like RTTY or long SSB contests, which typically generate substantial heat. The article also discusses upgrading to a higher output fan, such as the G2E085-AA05-21, and modifying tube sockets for improved airflow and reduced back pressure, citing Tom Rauch (W8JI) of CTR Engineering as a source for parts.

This page provides tips and advice for ham radio operators interested in activating park sites for the Parks On The Air (POTA) program. The author shares insights on how to find accessible parks in Western PA and beyond, emphasizing the importance of starting with historic sites and national parks. The content offers guidance on setting up equipment and getting on the air for POTA activations, making it a useful resource for beginners and experienced POTA operators looking to expand their park options.

Use the official POTA spotting website to search for active parks. This is the official spotting website for POTA. You can see current activations. On the Activations page, you can see the registered activations.

Learn about noise blankers in the FT-817 transceiver, why they may not work, and how to repair them. Follow the repair guide provided to improve your radio's performance, especially for activities like Meteor Scatter. Written by EA4EOZ, an amateur radio electronic enthusiast, this page offers valuable insights for hams looking to enhance their equipment.

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!

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.

Demonstrates the construction of a portable 2-meter repeater system utilizing a **Yaesu DR-1X** transceiver, configured for both analog FM and C4FM digital voice operation. The design emphasizes portability, robustness, and effective thermal management, incorporating a "wind tunnel" airflow system with a fan to maintain transmit module temperatures at 38 degrees Celsius during continuous operation. The system integrates a diplexer, control head, and is housed in a compact, lightweight case weighing under 8kg, designed for single-person deployment. Covers practical considerations for field deployment, including power sources, antenna types, and the overall system architecture for public service events and emergency preparedness. The resource details the modular "wrap around" construction, showing how components like thermal switches for fan control and Anderson Powerpole connectors are integrated. It highlights the system's ability to provide reliable communications support for club activities and emergency communications.

The XW4DX DXpedition website documents the amateur radio operation from Laos, a country ranked #98 on Clublog's Most Wanted list. This resource provides insights into the planning and execution of a significant DXpedition, including antenna choices like _Hexbeams_ at 14m, a 4-square for 40m, and a top-loaded vertical for 160m. The team, comprising operators such as _F4BKV Vincent_ and _F2DX Patrick_, focused on challenging paths, particularly towards the North American East Coast, where Laos is #41 most wanted. Operational constraints included prohibitions on 6m, 30m, 60m, and 80m bands within Laos, necessitating a focus on other HF frequencies, especially 160m and 40m. The expedition utilized up to five stations simultaneously, with equipment transportation being a major logistical challenge, partially mitigated by direct shipments from _Spiderbeam_ and donor support. The expedition ran from November 16th to 27th, 2023, with the complete XW4DX log uploaded to LoTW by December 23rd, 2023. This site serves as a historical record of their efforts to put Laos on the air for DXers worldwide.

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.

Service devoted to vacuum tube testing for HIFI, guitar, and vintage radio applications. Western Glow Tube Service offer a vintage radio repair service, they consider radio services more as a kind of tune-up, not a tradional repair service or restoration, although Level 3 is a nearly full restoration. Our services are geared toward radios that are mostly functional and not missing any significant parts except tubes.

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.

TX5EU 2026 DXpedition to Raivavae Island, **OC-114**, within the Austral Islands, providing a detailed account of the German/Dutch team's operations. The resource outlines the participation of operators such as DL2AWG Guenter, PA2KW Evert, and DK2AMM Ernoe, who engaged in CW, SSB, RTTY, and various digital modes. It documents the real-world challenges encountered, including significant equipment failures and antenna damage to 80/60m, 30m, and 10m verticals due to adverse storm conditions. The page offers timely news updates on the expedition's progress, noting repairs to a power amplifier's 10/12m bandpass filter, which enabled three stations to utilize amplification. Earlier reports highlighted power failures and the loss of multiple power amplifiers, necessitating one station to operate barefoot FT-8 with 100W. The team's persistent efforts to repair antennas as weather permits are also detailed, reflecting the dynamic nature of remote island operations.

AA DX Group was founded in March 1, 1974 in The Netherlands. Our members was more than 10000 from all over the World. Because during the years many of our members became "Silent Keys" or they are not active on the air anymore, we deceide to make new fresh group and to delete all old database. So, we are the new - old Alfa Alfa DX Group and you are welcome to be our member. We make avaiable all Alfa Alfa numbers for new and active CB members and SWL ( Shrot Wave Listeners ). Alfa Alfa World Wide DX Radio group is looking or ACTIVE CB Operators and SWL stations ! The New AADX team in in 2024 Main base in 178AA000 178AADX000 in Belgaria

The LICW Challenge is a daily event for ham radio operators, with special weekly on-air classes. It resets quarterly and covers bands from 160m to 2m, focusing on CW only. The event offers various point values based on member categories and bonus opportunities. Participants use specific calling frequencies and a CQ format to exchange information. Bonus points are awarded for specific criteria like contacts outside North America or special monthly members. The goal is to work as many LICW members as possible on different bands to earn points and bonuses.

The page discusses how Parks on the Air (POTA) in Canada offers ham radio operators the chance to set up portable stations in parks and nature reserves, combining radio communication with outdoor exploration. It also covers the World Wide Flora and Fauna (WWFF) program, which operates globally and complements POTA activities. Both programs provide unique challenges and opportunities for operators to expand their skills and connect with fellow enthusiasts worldwide. Whether you're a seasoned ham radio operator or new to the hobby, participating in POTA and WWFF can offer an exciting and rewarding experience, fostering a sense of community among radio enthusiasts who share a love for nature and communication.

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.