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The object of Danish DX Group is to attract DX-interested radioamateurs in a closer co-operation

WB4WOR Propagation Beacon on 6 and 10 meters Jointly Owned and Operated by the Broadcast Packet and Repeater Group and Piedmont Amateur Radio GroupRandleman, NC USA

RTTY.COM has been established to focus on the many aspects of Amateur Radio Teletype (RTTY) and to present to the dedicated RTTYer, and to the curious, a location wherein one can find information relating to RTTY and BAUDOT communications.

This publications page lists articles on surface mount devices, amateur radio, soldering, shunts, and measuring large direct currents.

A nice loop antenna project for 28 MHz with schematic diagram, construction details and a complete video instruction

Amateur Radio Projects & Kits for homebrewers, includes DDS,sound card interface,programmers, hamcom, frequency counter, RF Power Meter, modems and more.

Description, frequencies and sound samples of most popular amateur radio digital modes by DG8FBV

Cobalt Pet is a weblog focusing on shortwave radio. It features shortwave reception reports, product reviews, photos, listening tips, and links. International broadcasters and amateur / ham radio operators are monitored and discussed.

Radioberry Radio hat for raspberry pi. HF (0-30 MHz) The latest development of PA3GSB is a radio card plugged into a raspberry pi (2 or 3) , a so called rpi-hat, forming an amateur radio.

QRP and other projects from Honolulu, HI

US Antenna manufacturer offering base and mobile antennas for 2 meter, 1.25 meter and 70 cm Amateur Radio GMRS and MURS Citizens Band Radio VHF and UHF Business Band Radio HF, VHF and UHF Scanning

CARF combines the wonderful world of amateur radio with Christian fellowship and service

Amateur radio dealer in Talladega Alabama

The online home of Stirling & District Amateur Radio Society

Australian dealer for UHF CB radios, Amateur Radio HF VHF Radios, GPS navigation systems, two-way radio, cordless telephones, radar detectors, marine electronics, amateur radio gear and many other consumer electronic products.

An RSGB article on end-fed wire antennas and the W3EDP alternative.

Amateur radio shop in Canejan France, offers repair services too.

This simple and cost effective interface circuit is designed for use with any ICOM amateur radio equipment with CIV interface

The flight of the Lockheed Martin ARC Amateur Radio Balloon Repeater

Amateur Radio operator interested in mobile & emergency operations, with some portable QRP operations.

Radio shack rental in greece by Jurgen Eisinga - DL2YAG - SV0IE

Amateur radio cartoons by Woody Epp W7EPP

Arab Amateur Radio orum. Transceivers , Antennas, Educational, Software, Digital Communication and more.

Demonstrates a practical online tool for locating amateur radio operators by geographic area, specifically using US ZIP codes. This utility allows users to input at least three digits of a desired ZIP code to retrieve a list of active licensees. Search results can be sorted by _call sign_, name, license expiration date, or ZIP code, providing flexibility in data organization. The service offers two primary output formats: direct display in a web browser, which omits address details for privacy, or export to a tab-delimited file, which includes full address information suitable for import into spreadsheet or database applications like _Excel_. This lookup service proves useful for local club organizers seeking to identify potential members within their service area or for hams planning local nets or events. The ability to export data with address details facilitates direct mailings for club newsletters or event announcements, while the browser view maintains privacy for casual lookups. The tool's design prioritizes ease of use, requiring minimal input to generate relevant local amateur radio contact information.

Presents _HamQTH_, a free online callbook and callsign server, which provides rapid XML access for various logging programs, enabling seamless integration for amateur radio operators. The service includes features such as recent activity logs, propagation predictions, and support for multiple languages, making it a versatile tool for DXers and contesters. It also offers detailed information on callsigns, including US states, counties, IOTA, WAZ, and ITU zones. Users can leverage _HamQTH_ for efficient log searching and to monitor current band conditions, aiding in planning DX operations and contest strategies. The platform's XML interface facilitates automated lookups, streamlining the process of identifying stations and gathering essential QTH data. Petr Hlozek, OK2CQR, developed this resource, reflecting practical experience in amateur radio data management.

Malta Amateur Radio League - Official Malta Club and QSL Bureau

The _Italian VHF Beacons_ resource provides a detailed listing of active and QRT amateur radio beacons operating across VHF, UHF, and SHF bands within Italy. Each entry specifies the beacon's callsign (e.g., IQ1SP/B), operating frequency (e.g., 144.411 MHz), QTH locator (e.g., JN44VC), effective radiated power (ERP) in watts, and antenna configuration (e.g., Big Wheel, 4x Dipole, Yagi). This data is crucial for radio amateurs involved in propagation studies, equipment testing, and long-distance (DX) communication on these higher frequency bands, offering fixed signal sources for monitoring. This compilation, last updated in October 2005, serves as a historical snapshot of Italian beacon activity. For instance, it lists several 144 MHz beacons with ERPs ranging from **0.1W** to **10W**, and higher frequency beacons such as I8EMG/B on 1296.880 MHz and I3EME/B on 24192.132 MHz. The inclusion of QRT (Quiet Radio Teletype) status for many entries indicates the dynamic nature of beacon operations over time. Users can utilize this information to identify potential signal sources for band openings or to calibrate their receiving equipment against known transmissions.

TARA is the Troy Amateur Radio Association (N2TY) of Troy, New York. We sponsor the Annual TARA RTTY Sprint and we sponsored the worlds 1st PSK Rumble!

Pittsburgh's largest ham radio site.

Manufacturer & dealer for ATV gear. Catalogue and application notes available free to licensed Amateur Radio operators.

"The ""Clipperton DX Club"" promote the organization of radio-amateur expeditions thanks to financial support, QSL card printing, or equipment loan. The club created the ""DXpedition Award"" (DXPA), to honnor the traffic with radio-amateur expeditions."

AET telecomunicazioni, italian dealer for amateur radio equipment.

Homepage of the vero beach amateur radio club, w4ot

Founded in 2000 by Jim Weidner, K2JXW, a licensed ham operator for over 50 years, the ARLHS is the only society of its kind devoted to Maritime Communications, Ham Radio, Lighthouses, and Lightships.

Amateur radio courses on-line for Canadian Basic & Advanced amateur radio exams

Deutschen Amateur Radio Club Awards

We publish a quarterly newsletter, hold Field Day,Public service events and still provide Morse Code classes on our repeater W8USA 145.230

The following very comprehensive list was produced by G6DOF and has been extracted from the amateur radio packet network

The Micro24 is a ultra compact microsize QRP SSB transceiver for the 20 meters amateur radio band. This transceiver is so small that it fits into one hand.

UKSMG news, message board, and articles dedicated to encouraging amateur radio on 50MHz around the world.

Organized in 1939, YLRL (Young Ladies Radio League) is a nonprofit organization of women Amateur Radio Licensees. With a membership of approximately 800, it is international in scope with about 100 of those members who are DX YLs.

Amateur Radio Service Center, quality repair of Kenwood and Some Icom equipment, TX USA

Hogar de Don Guido, the hotel and amateur radio station owned and managed by Guido Rosillo HC8GR

Honduran amateur radio club founded in 1958 in San Pedro Sula, Cortes.

SWR Graphing Software for Amateur Radio by KD4UDY, shareware

Operating on the 2200m band (135.7-137.8 kHz) often presents challenges for amateur radio transceivers, which typically exhibit poor receiver performance at these very low frequencies. This project addresses the issue by providing a design for a dedicated 137 kHz antenna preamplifier, specifically tailored to improve signal reception for radios such as the _Yaesu FT-817_. The preamplifier circuit utilizes a low-noise FET input stage, crucial for minimizing self-generated noise and maximizing the signal-to-noise ratio from weak LF signals. The design includes a detailed schematic, component values, and construction notes, enabling homebrewers to build a functional unit. The goal is to achieve significant gain, making the faint signals on 2200m more discernible and improving overall band usability. Key design considerations include impedance matching to typical antenna systems and ensuring stable operation across the narrow LF segment. The circuit aims for a **low noise figure** and sufficient amplification to overcome the inherent limitations of general-purpose HF transceivers when operating below **200 kHz**.

QRP kits for Radio Amateurs

CLARC was founded in 1987 as an ARRL Special Services Club and is an IRS 501(c)3 not-for-profit organization serving the NASA/Clear Lake area of Houston, Texas.

This is a Ham Radio Software Transceiver for Amateur Radio. Software works in Windows, Mac and Linux. HamSphere is a community for Ham Radio operators and other radio enthusiasts. Amateur radio equipment is not needed. The Transceiver uses java technology and covers all virtual Ham Radio and Amateur radio bands from 160 to 6 meters.

International Amateur Radio Club at ITU - IARC information and official web site of 4U1ITU IARU club station