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Query: short wave
Links: 249 | Categories: 11
Categories
- Software > Shortwave
- Antennas > Shortwave
- Shortwave Radio
- Shortwave Radio > Beginner's guides
- Shortwave Radio > Broadcasters
- Shortwave Radio > Clubs
- Operating Modes > Robust Packet
- Shortwave Radio > Schedules
- Shortwave Radio > SWL DX Newsletters
- Shortwave Radio > SWL Resources
- Shortwave Radio > Broadcasters > Time Signal Radios
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Blog post announcing that Ham Radio, shortwave listeners and broadcast band listeners will be protected by Law in Europe
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Active Receiving Antennas, designed for reception of shortwave, mediumwave and longwave signals and VHF/UHF signals
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The DXCC World Map web application is a modern and interactive mapping tool designed for shortwave radio enthusiasts. It showcases a high-quality world map along with the Sun's position, sunrise and sunset times, the terminator, coordinates, QTH locator, azimuth, azimuth map, current DXCC list, Aurora, and WWV Geophysical Alert Messages. Additionally, it provides the SFI, X-Ray, Kp, and Ap indices.
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DL1OFC, operating from Hankensbüttel, Germany, shares insights into the fascinating hobby of amateur radio. While the station has been on hiatus since 2016, the site provides a valuable archive of activities and technical information. DL1OFC was active across various bands and modes, including 145.225 MHz FM, 430.225 MHz FM, 29.600 MHz FM, and DMR via DB0AGM on TS-1 TG-262 DL. Shortwave operations included SSB on the 40m through 10m bands, as well as 6m. The site details regional amateur radio activities in and around Hankensbüttel, offering a glimpse into local field days and community involvement. A notable feature is Die Isetalrunde, a regional amateur radio net covering the area from the Harz mountains to the sea. The site also includes general information on radio technology, tips for obtaining an amateur radio license, and discussions on VHF/HF propagation, including specifics on the 70 MHz band.
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North american QRP CW Club, open to any licensed radio amateur or shortwave listener (SWL) worldwide with at least some interest in CW/QRP operation. Encouraging the use of CW and helping all hams increase CW speed and proficiency
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A nice blog about DXing, Shortwave Radio Listening (SWL) and Amateur (Ham) Radio by VK3BVW
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A Web forum dedicated to HF underground and in particular to Shortwave Pirate Radio Forums and Spy Numbers listenings
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An inexpensive portable radio that you can travel with. ATS-505 would be a good choice for a first-time purchaser of a shortwave radio.
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Presented is a collection of my grandfather, Les Miles's short-wave listening QSL cards from the late 1930s to early 1940's
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Station QRP is a free low power pioneer shortwave radio station on 6.925 kHz AM
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GARS official web site. Our club is for those with an interest in Amateur Radio and Shortwave Listening in the Grimsby and Cleethorpes areas of North East Lincolnshire.
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Welcome to our line of Low Frequency, Natural Radio Research, Broadcast, Marine and Shortwave products. Our evolving product line is the result of our dedicated research efforts primarily in the areas of LF, VLF, MF, and HF.
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A quick and easy logging application designed for BCL and shortwave listeners, requires a recent Windows OS and .Net Framework
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Established in 1954, RAIBC is a national society and Charity, dedicated to supporting Radio Amateurs and Short-wave Listeners with disabilities. The RAIBC logo is recognised throughout the amateur radio world.
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A blog dedicated to military communications shortwave intercepts, sponsored by the Teak Publishing
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A numbers station, also known as a one-way voice link (OWVL), is a special type of unusual radio broadcast, generally on the Short Wave (SW) radio bands
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Number stations are shortwave transmissions from foreign intelligence agencies to spies in the field of foreign countries.
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This channel is all about radio listening and dxing. I will be covering frequency bands like longwave, AM/MW and shortwave. I'm embarking on my renew interest in this hobby since my childhood.
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Homemade receiver for 80 meters band. The receiver works very well (in fact better than some of its successors), especially the AGC makes listening to 80m QSOs a real pleasure. Sensitivity is not cutting-edge, but on a full-size short-wave antenna it is by fare sensitive enough.
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Antennas for Amateur Radio and short wave listening
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Encrypted messages, fancy technology, spies use them all to communicate, but sometimes the best way to hide is in plain sight. Right now, broadcasting across the airwaves around the world, are automated, anonymous shortwave AM radio stations that most governments won't acknowledge even exist, much less explain
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Ham radio stuff, scanner and shortwave topics at KE6ZGP blog
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The build was an experiment to see if a tube receiver could be stable enough to receive digital shortwave radio broadcasts. The tube acts as both an oscillator and mixer, so the receiver is a type of direct conversion receiver.
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The Spectrum Monitor, amateur, shortwave AM FM TV Scanning Satellite magazine, is edited and published by Ken Reitz KS4ZR, former managing editor, features editor, columnist and feature writer for Monitoring Times.
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This active antenna for the shortwave band provides surprising performance, even indoors. As the name implies, the main loop is made from a Hula-Hoop with the metallic paint stripped off and a single turn of 14AWG copper wire inserted inside the hoop.
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There are several ways to reduce the length of a dipole and still use it as an effective antenna. Remember it is the electrical length that determines resonance. The physical length can be considerably less than a half wave length on your desired frequency as determined by 468/f MHz.
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This antenna just requires about 24m of free space instead of 41m that a normal half wave 80m antenna needs to hang up. The so called loaded dipole uses a coil in every dipole arm to electrically lengthen the mechanical too short dipole arms. Every coil has an inductivity of 120 microHenry.
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Spy Numbers Stations are shortwave radio stations that are speculated to have been broadcasting since World War I. The true origin and purpose of them are unknown. A popular theory is that these stations are intended for spies in the field using a One Time Pad. Another theory is that they are used in drug smuggling operations.
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Here is a formula and calculator for creating a loaded (shortened) quarter wave vertical or balanced dipole. The calculation refers to either a loaded 1/4 wave or a loaded dipole
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A dual band X-frame wire antenna made using 4 turns for response down to 3 MHz or so, and 2 turns (switched) for response up to around 18 MHz. The loop configurations are tuned using common eBay 365 pF tuning caps.
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Construct the Peaberry, a SoftRock-compatible SDR transceiver. This project is aimed to build an amateur radio transceiver that operates on the medium or short wave bands
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How to Design and Build a Field Expedient End-Fed Half-Wave Antenna for 20m, 40m and 80m. This Shorty 80m EFHW comprises a 49:1 autotransformer (to match the very high impedance at the end of a half-wave wire), a half-wavelength wire for 40m (also a quarter-wavelength for 80m), a loading coil and a short tail wire. The coil and the short tail wire (about 6 feet) make up the other quarter wave on 80m.
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Shortwave and Amateur Radio Log (SWLog) is a modern suite of applications that provide logging and remote control for amateur radio and shortwave, utility, and broadcast listening. SWLog has been continuously improved and expanded since it was first released in 1988. SWLog is a suite of products that provides logging, radio control, GPS synchronization, QSL management, reporting, and propagation prediction. Program schedules from HFCC, ILGRadio, AOKI, ADDX, SWSkeds, EiBi, and others are leveraged for broadcast reception. Call sign lookups and remote logbooks are integrated with ClubLog, eQSL, QRZ, Ham365, HamQTH, and LoTW. SWLog provides Android and iOS applications for logging on the go as well as web servers for logging and remote control from anywhere. SWLog works on Windows, Linux, iOS and Android
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This document details the construction of a multi-band end-fed antenna, suitable for situations with limited space for larger antennas. The design utilizes a 1:49 to 1:60 impedance transformer to match a half-wave wire antenna fed at one end. Compared to a traditional dipole, this antenna resembles a highly unbalanced Windom antenna with one very long leg and a virtual short leg. The design eliminates the need for radials but relies on the coax cable shield for grounding. The document recommends using at least 10 meters of coax and installing a common mode filter at the entry point to the shack for improved performance.
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This page is a project for a small loop antenna for reception of short wave broadcasting. It is in Portuguese and contains pictures and schematics to build your own antenna
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A QSL Cards collection divided into North American Shortwave Pirate Radio QSLs abd European Shortwave Pirate Radio QSLs
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Worldwide Map of shortwave transmitters. Based on shortwave schedule database, this website let you serarch using filters for broadcasts schedule and at the same time to diplay the transmitter map.
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From the sortwave radio audio archive, a collection of recordings of several spy numbers stations, russian, spanish, cuban audio recordings
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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.
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This tutorial provides detailed instructions for constructing a DIY magnetic loop antenna, ideal for amateur radio operators seeking efficient short wave communication. The design features a remote tuning system utilizing an Arduino and RC servo, making it suitable for indoor use where larger antennas cannot be installed. Magnetic loop antennas are compact and can operate effectively in confined spaces, but they do require careful handling due to the high voltages and currents they generate during operation. Users should possess the necessary technical skills to implement this project safely. The tutorial includes a comprehensive overview of the antenna's theory, specifications, and mechanical design. It outlines the components needed, including a Soviet-made variable capacitor and a digital RC servo for tuning. Safety precautions are emphasized, as the antenna can produce several kilovolts of voltage and high currents. The project is not certified for safety, and users are advised to proceed at their own risk. The tutorial also provides diagrams and explanations of the antenna's operation, making it a valuable resource for both beginners and experienced operators looking to enhance their setup.
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The Yaesu FT-710 is Yaesu s compact, shortwave transceiver that uses the SDR technology known from FT-DX101 and FT-DX10, which is a great fit for our fast-paced, comfortable world. The FT-710 is a perfect entry-level device. If you're thinking of buying a compact transceiver with SDR technology, it is a good choice.
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This article explores the revival of the classic 3 Transistor Short Wave Radio kit originally offered by Radio Shack in the late 1960s. Updated with modern silicon transistors and components, the design retains its educational charm while enhancing performance. Detailed assembly instructions and illustrations are provided to facilitate replication. The project not only pays homage to nostalgic electronics but also serves as a practical introduction to radio theory, including modulation techniques and receiver types, fostering a hands-on learning experience for enthusiasts.
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This guide explores the captivating hobby of shortwave listening (SWL), offering insights for beginners and enthusiasts alike. It covers key shortwave broadcast bands, essential tools like antennas and receivers, and practical tips to enhance listening experiences. Recommendations include budget-friendly SDR receivers, traditional radios like the TECSUN PL-680, and antennas suited for various environments. Additional resources, such as the World Radio & TV Handbook and online tools like Short-Wave.Info, are highlighted to help identify signals and maximize the enjoyment of SWL.
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SWList iOS App, provides access to the EiBi list for discovering and identifying shortwave radio stations, curated by Eike Bierwirth. It offers four search methods: by frequency, radio band, station name, or language. Users can view detailed station information and map locations if available, with support for both light and dark modes.
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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.
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Radio wave propagation describes how radio waves travel from one point to another, classified as ground waves, skywaves, and free space propagation. Ground waves propagate over the earth's surface in low/medium frequencies, bending around obstacles but limited to short ranges. They enable AM/FM broadcasting and military submarine communication.
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CHU is a time signal transmitter operated by the National Research Council in Canada. It broadcasts on various frequencies and is primarily used for time synchronization in North America.
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New Alfa Alfa Worldwide Radio DX Group Are Welcome, Also old Alfa Alfa members. Only Active Operators and SWL ShortWaveListers PostStation. You Make the Difference Whether You Are a CB Operator. Or just a Listener without a transmitter. And actively participates in the Alfa Alfa Worldwide Radio Dx Group. This keeps the Group Active and makes a difference compared to other sleeping club / group members. They are called spirit callings that are never heard or received by SWL qsl. You as Alfa Alfa Makes a difference and a group alive. Alfa Alfa Worldwide Radio Dx Group is looking for real, very active CB radio operators, and SWL ShortwaveListing Post Stations