Search results
Query: key
Links: 722 | Categories: 21
Categories
- Technical Reference > Beacon keyers
- Technical Reference > Key Clicks
- Technical Reference > Keyers
- Manufacturers > Memory Keyers
- Manufacturers > Morse Key
- Operating Modes > Morse code > Morse Key Collections
- Manufacturers > Morse Keyers
- Technical Reference > Morse Keys
- Ham Radio > Clubs > Europe > Turkey
- Software > Voice Keyer
- Radio Equipment > Voice Keyers
- Manufacturers > Accessories
- Radio Equipment > Amateur Radio Accessories
- CB Radio
- Ham Radio > Clubs > Europe > UK > Central England
- Radio Equipment > Contest Hardware
- Operating Modes > Morse code
- Technical Reference > Arduino > Morse Code
- Manufacturers > QRP Kits
- Propagation > Solar Cycle
- Technical Reference > Sound Card Radio Interfacing
-
This project focuses on the transformation of DXSpider deployment into a seamless Docker experience for the global amateur radio community. It highlights the key features, installation process, and documentation, while acknowledging Dirk Koopman (G1TLH) for creating DXSpider. The project aims to simplify the deployment and management of DX Cluster nodes for amateur radio operators by containerizing the software. With a Docker-native architecture and intelligent defaults, the project offers an easier setup process without compromising on the powerful features of DXSpider.
-
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.
-
Integrating a Genovation keypad with the Elecraft K3 is for anyone looking to enhance their radio setup. Author shares his journey from initial confusion to successful implementation, detailing key insights, particularly about the importance of device identification. The update from Genovation simplifies the process significantly, allowing users to select USB mode without firmware changes. With practical tips and a clear template for programming, this resource is invaluable for both new and seasoned users aiming to optimize their K3 experience.
-
The article details how to eliminate Radio Frequency Interference (RFI) from the Behringer HA400 headphone amplifier when used in ham radio setups. While the HA400 is praised for its quality and affordability, it was not designed for RF environments, causing distortion when used with a 500-watt radio station. Initial attempts using clamp-on ferrites on the headphone and power cables only partially resolved the issue. Upon opening the unit, the author discovered the circuit lacked RF bypassing components. The solution involved installing 0.1μF (104) capacitors at key points in the circuit: the power supply input, audio circuits, and op amp inputs. This modification, combined with the external ferrites, completely eliminated the RFI problem, making the unit suitable for ham radio operations.
-
Cloudlog Helper addresses the need for streamlined, automated logging of amateur radio contacts, particularly for operators utilizing digital modes like FT8 or those with limited system resources. This utility syncs real-time rig data and QSO information to various logging platforms, including _Cloudlog_ and Wavelog, supporting mainstream transceivers. It integrates seamlessly with popular digital mode software such as JTDX and WSJT-X, ensuring that contact details are captured and uploaded without manual intervention. Operators can compile the software themselves and configure essential settings, including their Maidenhead locator, Cloudlog server address, API key, and station ID. The application's design prioritizes efficiency and portability, making it a practical solution for hams who prefer automated logging processes. While an unofficial community project, Cloudlog Helper provides a robust framework for automating the often-tedious task of logging, supporting multiple logging services beyond its primary integration. It offers a direct method for hams to maintain accurate and up-to-date logbooks with minimal effort, potentially improving their DXCC or other award tracking by ensuring no QSO is missed.
-
The W6PQL 23cm Beacon Project describes a **1296 MHz** beacon designed for microwave propagation studies and equipment testing, capable of 30 watts output. It utilizes a PIC 16F628A microcontroller to generate CW and FSK keying for a crystal oscillator, followed by a series of frequency doublers and triplers to reach the target frequency. The final power amplification stage employs a Mitsubishi M57762 module, providing a robust 10-watt RF output. The design emphasizes stability and reliability for continuous operation, with the microcontroller code, written in assembly, provided for customization of the beacon's callsign and message. Originally located in CM97am and aimed at 140 true, the beacon used four 4-foot Yagis stacked vertically for a total ERP of 3kW. The article includes schematics, parts lists, and construction notes to guide builders, along with antenna pattern measurements. Although the beacon itself is no longer in service as of August 2010, the detailed documentation remains a valuable reference for amateur radio operators interested in building similar **microwave** projects or understanding beacon operation.
-
SO2R Focus Control and SO2R FC Server are freeware VB6-based tools enabling remote or local control of modern SO2R controllers (supporting OTRSP and MK2R protocols) outside contest logging sessions. The client (SO2R Focus Control) manages serial-connected controllers and can interface remotely via LAN or internet using the optional SO2R FC Server, which supports up to two concurrent clients. Key features include AUX port control with customizable labels, interlock options, AES-256 encrypted network communication, and compatibility from Windows XP through Windows 11. Designed for operators needing flexible station control—especially for remote antenna switching—both programs install cleanly via NSIS and uninstall completely.
-
Examines the Sangean ATS-505 portable receiver, a unit introduced in March 2000, providing an in-depth analysis of its capabilities. The review details critical specifications such as its 6 Volt DC power requirement, utilizing 4 AA batteries, and its physical dimensions of 128 x 214 x 39 mm, weighing 840 g without power cells. Frequency coverage spans **LW** from 153-279 kHz, **MW** from 520-1710 kHz, **SW** from 1711-29999 kHz, and FM from 87.5-108 MHz, making it a versatile listener for various broadcast types. Key features highlighted include a backlit display for low-light operation, 45 memory presets for quick access to favorite stations, and the inclusion of Single Sideband (SSB) mode, which is crucial for serious shortwave listening and utility monitoring. The review also draws technical comparisons with other Sangean models, specifically the ATS-404 and ATS-909, pointing out differences in band coverage and operational features. This independent assessment offers practical insights into the ATS-505's performance, helping enthusiasts understand its place within the portable receiver market.
-
VE2AZX's 2013 Radio Talk presentation details the technical aspects of baluns, including reasons for their use, various types, and methods for performance verification using an SWR analyzer. The document specifically examines 1:1 voltage baluns and 4:1 voltage baluns, outlining their winding configurations and typical impedance transformations. It presents empirical SWR measurements for W2AU 1:1 baluns and Unadilla 4:1 baluns, tested with both 50-ohm and 200-ohm resistive loads across the HF spectrum. The presentation further explores the measurement of ferrite impedance and their application in mitigating common-mode currents on feeders and household conductors. Key concepts addressed include balanced-to-unbalanced transformation, ensuring feeder independence from the antenna, and reducing unwanted feeder radiation. The content emphasizes practical testing procedures to ensure optimal antenna system performance and minimize RF interference. Discussions also cover open-circuit tests with SWR analyzers and VNAs to assess winding inductance, distributed capacitance, and insulation quality. The presentation differentiates between voltage and current baluns, explaining how current baluns, particularly those utilizing ferrite cores, reduce outer shield currents without affecting internal coaxial cable currents, thereby preserving the antenna's intended radiation pattern.
-
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.
-
Personal website of YO9GR Alex from Romania. Alex provides in his web site a blog with personal ham radio related informationm but also some interesting projects like an external keyer for Icom Transceivers, and other electronics projects.
-
Examines the AOR AR-7030 communications receiver, detailing its technical specifications and operational characteristics. The resource describes its compact design, CNC machined aluminum cabinet, and a frequency range spanning 0-32 MHz. Key features include a ceramic metal cased 4 kHz AM filter, with typical bandwidths of 2.2 kHz, 4.0 kHz, 5.3 kHz, and 9.5 kHz, alongside 400 memory channels and multi-timer functionality. It emphasizes the receiver's high-quality components and a design philosophy focused on reliable performance without superfluous features, making it a dedicated tool for serious listeners. The review assesses the AR-7030's performance within its price class, particularly for **medium wave** and **shortwave** reception. It provides insights into how the receiver's design choices, such as its robust construction and specific filter options, translate into practical listening experiences. The analysis highlights its suitability for users prioritizing signal clarity and operational stability over extensive, complex features, offering a clear perspective on its utility for dedicated DXers and broadcast listeners.
-
The WSJT Log Viewer, version 1.0.0.10 as of 2026-08-02, is a freeware Windows application developed by Carsten Groen (OZ9AAR) for analyzing signal strengths from WSJT digital mode contacts. It processes the ALL.TXT log file generated by WSJT-X, extracting and presenting data from decoded TX and RX messages. Initially designed for EME operations on 70cm and 23cm, the software has expanded to include all HF bands, 6m, 4m, 2m, 1.25m, 70cm, 23cm, 24GHz, and 47GHz. Key features include displaying total QSOs, unique callsigns, days with activity, and signals heard, with filtering options by band and completed QSOs. The application also monitors the ALL.TXT file for live updates every two seconds, reflecting new decodes in real-time. Users can view session logs, activity charts showing daily signal counts and decoded signals, and a "Top Partners" tab listing the 25 most frequent contacts. The software provides detailed QSO information, including best received SNR and sent reports, with graphical representations of SNR over time. It supports multiple "My Callsign" entries within a single ALL.TXT file and offers a function to generate a text list of initials worked per band. The program is distributed as a single executable file, requiring no installation, and stores its configuration in a LogViewer.cfg file, allowing for different setups via command-line arguments.
-
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
-
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.
-
HQ NextPCB, a global company committed to high-quality, reliable multilayer PCB manufacturing, turnkey assembly, and electronics sourcing services for over 15 years.
-
Learn about North Carolina Packet Voice nets and NCPACKET YouTube videos. Get your NCPACKET Callsign Badge to wear at ham club meetings and hamfests. Explore Hamfest Photos and NCPacket news. Discover the North Carolina TARPN Nodes mission statement and the benefits of being off the grid. Find out why TARPN is a great option and compare it with Winlink, APRS, ARES, and MARS. Learn how to build the NCPACKET network, including information on repeater sites and other key components.
-
This page provides a detailed instructions on how to setup the KX3 transceiver with the Win-Test software. How to configure the contest logging software Win-Test to be use with the Elecraft KX3 transceiver for CW. Using only the dedicated Elecraft KXUSB cable between the radio and the computer, enabling to send CAT commands and pre recorded CW messages with the F1 to F7 keys.
-
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.
-
Manages log consistency across multiple digital mode applications, specifically addressing the common issue of log divergence between _MSHV_ and _WSJT-X_ for FT8, FT4, and other weak-signal modes. This prevents duplicate contacts and ensures accurate DX tracking when using both programs. The utility computes a deduplicated union of entries from both `_mshvlog.edim` and `_wsjtx.log` files, then updates each log with missing QSOs. It supports a deduplication key based on callsign, date, time (to the minute), band (derived from frequency), and mode. The tool is available as a standalone Windows executable or a Python version requiring Python 3 with _Tkinter_. Users select log folders, close both applications, and initiate the 'Merge' function. The process includes automatic timestamped backups of log files before any modifications, safeguarding QSO data.
-
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 State QSO Party Challenge is an annual program recognizing amateur radio operators' participation in U.S. State and Canadian Province QSO parties. To qualify for the SQP Challenge, participants must make at least two QSOs in a minimum of two SQP Approved QP contests and submit their scores to 3830Scores.com. The site details the SQP Mobile/Portable Challenge, an overlay competition encouraging mobile/portable operations, with scoring identical to the main SQP Challenge: (Number of QPs entered) x (Number of QSOs) = Score. Eligibility for the Mobile/Portable Challenge requires prior qualification for the SQP Challenge. The website also mentions a State QSO Party Club Challenge and provides contact information for questions. The 2026 SQP Challenge will be dedicated to Stan Zawrotny, K4SBZ, a key team member instrumental in the program's development. Participants are recognized for reaching five levels of achievement: Bronze, Silver, Gold, Platinum, and Diamond. Scores are calculated by totaling reported contacts and multiplying by the number of SQPs entered year-to-date, encouraging more entries and longer operating times. The Worked All QSO Parties (WAQP) program, sponsored by Icom America, offers certificates for participating in at least 50% of approved contests, with a goal of participating in all. WAQP requires submitting a log with at least two valid contacts to the contest manager, in addition to the 3830scores.com submission.