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Antennas : Mobile
  • DIY Portable Car Whip Antenna - Being frequently away from home, the author owner of an Elecraft KX3 missed the opportunity to work /M. They devised a portable antenna solution, incorporating a coil and car body, enabling multi-band tuning. Despite its unconventional design, the antenna exhibits promising performance, resembling a vertical dipole.
    [ Hits: 53 | Votes: 0 | Rating: 0 ]
Antennas : Tuners
  • Portable T-Match ATU - Homebrew Portable T-Match ATU, VK1AD Portable T-Match Antenna Tuner (ATU) mounted in a plastic case, T-Match ATU Schematic – 3.5 to 52 MHz power rating 80 watts
    [ Hits: 101 | Votes: 1 | Rating: 8 ]
DX Resources : DX Maps
  • HF DXView Propagation Map - This map shows real-time radio propagation from stations operating on 11 bands between 1.8 and 54 MHz in the amateur radio service. The display shows world-wide activity from the last 15 minutes and is automatically updated about every minute. Data for the map is gathered from several online sources: WSPRnet, Reverse Beacon Network (CW, FT4, FT8), PskReporter, and DX Cluster.
    [ Hits: 299 | Votes: 5 | Rating: 7.6 ]
DX Resources : DX Peditions : 2023 DXpeditions
  • XW4DX LAOS DXPedition - XW4DX DXpedition to Laos 16 to 27 November 2023 We will be operating on all HF Frequencies except 80m and 30m, that are unfortunately not allowed anymore in Laos.
    [ Hits: 12 | Votes: 0 | Rating: 0 ]
DX Resources : DX Stories Operating Aids : Travelling
  • Operating Amateur Radio Overseas - Travelling with ham radio devices, Operating under CEPT, operating in the US, CEPT Operating Rules, Permanent Overseas Licence
    [ Hits: 47 | Votes: 0 | Rating: 0 ]
Operating Modes : Aircraft scatter
  • Aircraft Scatter ACS - Getting started with Aircraft scatter, defined as the process of scatter radio waves of the body of a traveling aircraft in order to enhance the distance possible to bridge on VHF, UHF and microwaves. The ACS path, Equipment requirement and Operating techniques
    [ Hits: 54 | Votes: 0 | Rating: 0 ]
  • Airplane scattering - Operating on Airplane scattering. Scattering of radio signals by airplanes. An introduction to operating ariplane scattering, using aircraft to redirect RF that would otherwise be lost in space. Antenna Pointing, Doppler Shift/Digital Modes, using digital modes to operate airscatter.
    [ Hits: 153 | Votes: 0 | Rating: 0 ]
Operating Modes : FT8
  • FT8 - The Basics Explained - A brief introduction to the FT8 operating mode and tips on how to start using this modern and efficient digital mode.
    [ Hits: 91 | Votes: 0 | Rating: 0 ]
Operating Modes : Meteors
  • Listening in on the Stars - Doppler Whistles from Meteor Trails, few hams know that meteors can be spotted without leaving the operating room. Identifying Meteor-Trail Reflections, Shooting Stars, Why the Meteors Whistle
    [ Hits: 72 | Votes: 1 | Rating: 10 ]
Operating Modes : Portable Operations
  • Portable Operating Tips for Ham Radios - This article is from the book Ham Radio For Dummies and features some tips for portable amateur radio operations, on Field Day or generic outdoor operation, like selecting the proper antenna and portable power.
    [ Hits: 79 | Votes: 1 | Rating: 10 ]
  • Ham Radio And the Art of Bushcraft - This article explores the marriage of amateur radio and bushcraft, advocating the pleasure of setting up a portable station in nature rather than operating from the confines of a vehicle. The Parks on the Air (POTA) programme is highlighted as a catalyst for outdoor radio activities. The author shares his experiences and techniques, from transporting equipment into the wilderness to setting up shelters and antennas. Knot tying skills and the use of frogs are emphasized for efficiency, and a unique method for launching wire antennas is described. The article emphasizes the synergy between amateur radio and bushcraft skills, enhancing the enjoyment of radio operations in wilderness environments.
    [ Hits: 81 | Votes: 1 | Rating: 10 ]
Operating Modes : QRP
  • Antennas for QRP Operation - Antennas for low-power operation resemble those for 100W use. Minor adjustments, like capacitor voltage ratings, may apply, but basic principles persist. Portable antennas, notably Backpack Antennas for weight-conscious setups, hold relevance beyond QRP. While some antennas function acceptably at higher power, efficiency issues arise at QRP levels. Testing antennas at 100W exposes weaknesses, particularly in tuners, crucial for efficient QRP operation.
    [ Hits: 58 | Votes: 0 | Rating: 0 ]
Radio Equipment : HF Transceivers : Icom IC-7300
  • Enhancing Icom IC-7300 RX Antenna - Despite the model limitations, such as a single TXRX antenna connector, the author shares a reversible modification involving a coax relay for enhanced functionality, demonstrating the transceiver's adaptability and customization potential.
    [ Hits: 183 | Votes: 1 | Rating: 10 ]
Radio Equipment : HF Transceivers : Yaesu FT-818
  • FT-818ND Operating Manual - English operating manual of the Yaesu FT-818 HF VHF UHF portable transceiver
    [ Hits: 42 | Votes: 0 | Rating: 0 ]
Software : Linux : Linux Distributions
  • Skywave Linux - Linux for shortwave and amateur radio monitoring. Supports popular SDR hardware and online streaming from KiwiSDR, WebSDR, and Spyserver sites. Articles about using Linux with your SDR devices.Skywave Linux, an innovative operating system, leverages cutting-edge technology for seamless access to radio signals globally. Ideal for regions with limited internet access, it effortlessly connects to a network of SDR servers, offering high-performance SDR operation without the need for extensive hardware. With pre-installed and configured SDR software, Skywave Linux simplifies signal discovery and operation for all users.
    [ Hits: 263 | Votes: 0 | Rating: 0 ]
  • DragonOS Focal - DragonOS is a linux distribution dedicate to Software Defined Radio. It leverages the portability, security, and power of Lubuntu Linux as a delivery package and operating environment for a pre-installed suite of the most powerful and accessible open source SDR software. DragonOS has verified support for a range of inexpensive and powerful SDR hardware, including RTL-SDR, HackRF One, LimeSDR, BladeRF, and many others.
    [ Hits: 186 | Votes: 0 | Rating: 0 ]
Software : Weak Signal
  • WSJT-X Controller - Streamlining FT8 Operations with Automation. The WSJT-X Controller simplifies FT8 operations by automating repetitive tasks in conjunction with WSJT-X. Designed to enhance efficiency, it facilitates tasks like responding to CQs, managing late 73 decodes, and seamlessly integrating with JTAlert and other add-ons. The program allows users to focus on productive QSO tasks while optimizing FT8 performance.
    [ Hits: 123 | Votes: 1 | Rating: 9 ]
Technical Reference : AI Ham Radio
  • AI-Powered Radio Signal Cleanup: Battling QRM in Real Time - Amateur radio enthusiast Jean-Paul Suijs discusses combating manmade noise (QRM) in radio signals using AI. Detailing experiments with phase-shifting techniques and the self-learning nature of AI, he explores AI-based audio processing apps for real-time noise cancellation during radio contests, demonstrating results on both medium wave and shortwave bands.
    [ Hits: 67 | Votes: 0 | Rating: 0 ]
Technical Reference : Arduino : Morse Code
  • KEYERduino low-cost Arduino project - A low-cost Arduino project expanding on the button tutorial, where three inputs act as "buttons" generating Morse code on a WOTDUINO. This keyer, costing around £4, offers learning potential and hints at more complex ham radio applications.
    [ Hits: 58 | Votes: 0 | Rating: 0 ]

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