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A 2x3-foot laminated world map product is detailed, offering customization for amateur radio operators. Each map features two distinct views: one centered on the operator's specific station location and another precisely centered on its _antipode_. Countries are clearly labeled, complemented by a tabular listing of all countries. The map integrates a standard latitude/longitude grid alongside concentric circles that delineate distance increments radiating outward from the operator's QTH. Personalization includes the operator's name, callsign, and location printed directly on the map. This custom mapping service provides a unique visual aid for DXing and propagation analysis, allowing operators to quickly ascertain beam headings and distances from their station. The dual-view presentation, particularly the antipodal centering, offers a practical reference for understanding long-path propagation and identifying potential DX opportunities. The inclusion of distance circles and personalized station data makes it a tailored tool for daily operating and contest planning, distinct from generic world maps.

River City Amateur Radio Communications Society

The Central Texas DX & Contest Club (CTDXCC) is a group of Amateur Radio operators in the central Texas

VMARS is the Society for those with a special interest in the preservation and operation of Vintage equipment, both Military and Civil

Welcome to w0sv, the st. cloud amateur radio club. here, you will find information about the club, it's events, hamfests, on-air activities, and membership.

Using old FM microwave equipment to operate the amateur radio 24 GHz band by EA4EOZ

C.A.R.L.A. is a growing network of repeaters providing coverage across Northern & Central California and Western Nevada. It is intended to be used as a reliable communications resource during significant local, regional and wide area incidents, and is open to all licensed amateur radio operators

to promote amateur radio as a hobby in the Yuma area and to provide public service to our community in the form of communications during certain public events.

Northeastern pennsylvania's premiere amateur radio club

We are a small club dedicated to help the community any way we can.

Italian amateur radio and electronic components shop based in Firenze Italy

RSGB Emerging Technology Co-ordination Committee Web resource for UK amateur radio repeaters. This site gives details of Britain's amateur radio repeaters

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.

SEMARA.ORG, the official web site for the Southeastern Massachusetts Amateur Radio Association.

Serving Chicagoland for over 50 years

For radio amateurs seeking to verify contacts or identify stations from Tajikistan, the _Tajikistan EY Callbook_ serves as a dedicated online resource. This callbook, compiled and maintained by Irage M. Tursoon-Zadeh, _EY8WW_, offers a focused database of callsigns within the EY prefix region. It provides a practical utility for DXers and contesters aiming to confirm QSLs or prepare for operations involving stations in this specific geographic area, streamlining the process of identifying active hams. The resource's utility is particularly evident for those engaged in award programs like _DXCC_ or _WAZ_ where accurate callsign verification is crucial for credit. Unlike broader, worldwide callbooks, this specialized listing ensures high relevance and accuracy for its target region, reflecting the local expertise of EY8WW. Its direct focus on Tajikistan makes it a valuable, albeit niche, tool for operators with specific interest in Central Asian DX.

KB9AMG's Top WSPR Spots presents a focused online tool for monitoring **2-way WSPR reports**, specifically detailing propagation data from February 2026 through March 2026. This resource aggregates _WSPRnet_ data, allowing radio amateurs to observe weak signal propagation conditions across various bands. The interface is straightforward, presenting callsigns, frequencies, signal-to-noise ratios, and distances for each reported contact, which is crucial for understanding current band openings and signal paths. The utility of this WSPR spotter lies in its ability to quickly visualize global propagation. Users can identify active stations and assess signal viability over long distances, with reports often showing contacts spanning thousands of kilometers. For instance, a typical WSPR report might indicate a signal from Europe reaching North America with a _SNR_ of -25 dB, demonstrating effective low-power communication. This data is invaluable for planning DX operations or evaluating antenna performance under actual propagation conditions.

Located in Johnson City, Tennessee - Washington County EM86.

A Friendly Ham Club!

Serving Columbia and Greene Counties of New York State

The Lassen Amateur Radio Club has been affiliated with the ARRL since 1972

Platinum coast amateur radio society (pcars) w4mlb - melbourne florida, pcars provides hf, vhf, and uhf communications for any police fire and rescue emergency

The ADIF Processor is an online application that visualizes amateur radio contacts from an ADIF log file using Google Earth. SOTA CSV log files can also be used. As well as allowing you to view and explore your contacts in Google Earth, you will be able to see a Markdown or text table of contacts, use the output ADIF file which contains QRZ.com data, accurate contact distances and fields populated from comments in the input file. Print QSL labels. One of the benefits of using the ADIF Processor before uploading/storing your ADIF file is detecting errors in callsigns and activity references (e.g. POTA or SOTA references).

A Six element antenna for the 50 MHz Amateur Radio Band v4 by DF9CY

Explains the fundamental principles of Software Defined Radio (SDR) and Digital Signal Processing (DSP) within the amateur radio context, serving as an initial entry point for hams interested in these technologies. It covers the architectural shift from traditional analog hardware to software-centric radio systems, detailing how digital signal processing algorithms are applied to modulate, demodulate, and filter radio signals. The resource compiles a list of external links to _white papers_ and project pages, offering further technical depth. This page provides a foundational understanding of SDR/DSP, enabling operators to grasp concepts like direct sampling and quadrature mixing. It references various projects and discussions, allowing users to explore practical implementations and theoretical underpinnings. The curated links direct users to resources that might cover specific SDR hardware platforms or software applications, facilitating deeper research into the subject.

How to setup and install custom filters, usually inrad, into Yaesu FT 857 and FT 897 transceivers

ARRL Resources about Lightning Protection for the amateur radio station

NT9K Personal Amateur Radio Website from Melbourne Florida

CASPERARC amateur radio club in Casper Wyoming

ICQ Podcast The home of the Premier Amateur Radio Podcast, podcasts, forum and Amateur Radio News and views.

M0CVO Antennas, amateur radio antennas for fixed station or portable operations, HF/6m all are catered for. The antennas produced by us are all manufactured by Nigel Booth, M0CVO

President Karami Radio Society. Amateur Radio Club Station OD5RAK, Tripoli - Lebanon

This project involves the construction of a 5 Watt Morse code beacon transmitter that operates in the 28.200 to 28.300 section of the 10 Meter Amateur Radio band. The beacon controller uses an Arduino Uno microprocessor board to produce the three signals that control the transmitter.

Blog pour Radioamateurs. A Blog for radioamateurs mainly in french

SCARA is located in Siskiyou County, CA. Features information on club events, meetings, and membership.

Serving the needs of the Amateur Radio Operators in Charlotte, DeSoto, Hardee, Highlands, Hillsborough, Manatee, Pasco, Pinellas, Polk, and Sarasota Counties.

Broward County

The complete Bozo's guide to JT65A by K3UK, learn how to install and operate WSJT software and start making QSO in weak signals operating modes

The Montgomery Amateur Radio Club Serving Montgomery County, Maryland Since 1966

The Western Oregon Radio Club operates Linked Amateur Radio repeaters in the Portland Oregon Area

This website is made available to the CCARC Hamradio Community and to anyone interested in Amateur Radio.

Filters for the commercial 2 way market, MATV, FM broadcast, laboratory, marine industry, amateur radio, scanner and short wave. Antenna for amateur radio bands

APRS-Webserver, that presents aprs-data and maps for free using Google Maps api. The position data is imported from aprs.org, winlink.org and echolink.org. The map data are partially commercial and free. This server is for amateur radio purposes only.

An ARRL article collection about influence of radio frequency with pacemakers and other similar medical devices.

Stamford Amateur Radio Association Located in Stamford, Ct. US

The Mobileer group is for California Amateur Radio (Ham) operators to discuss family mobile radio caravan and camping trips.

When I tell friends that I enjoy amateur radio contesting, their reaction is usually a quizzical stare. "What's that?" It is hard to explain in the span of a cocktail conversation, so here is the answer.

West Georgia Amateur Radio Society, Inc