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Ham Radio news satire, in the style of "The Onion"

HamAlert let you receive Push,SMS,Email notifications for Cluster,RBN,SOTAwatch spots, with customizable filtering based on many criteria including DXCC, SOTA and WWFF references, CQ zones

Hoosier Hills Radio club

IARU Regional bandplans

Metrocrest amateur radio society kb5a dallas carrollton farmers branch ham radio

Ionospheric propagation maps MUF and critical frequency

Grupo de Radioamadores Portuguese de Ontario

Optimizing the Performance of Harmonic Attenuation Stubs

Assembling the Small Wonder Labs SW+40 QRP Transceiver Kit documented by K4ICY

Digital modes contest rules by TARA. Offers the All Seasons contest Tournament. A new concept in contesting.

Use your Smartphone as an Oscilloscope to visialize signals from 150 Hz to 15kHz and as a Signal Generator to generate sinusoidal, square and triangular signals up to 15kHz

W4RAT based in the Virginia capitol city of Richmond.

Source for high quality new old stock vacuum tubes

tabLog has been written to offer basic logging when /P and allows for easy import into your Shack-based log via ADIF. Best performance is with a tablet in landscape mode and using a small Bluetooth/micro-USB QWERTY keyboard – QSO entry via this method is simple, and efficient.

3C9B Equatorial Guinea - Bioko Isl. and 3C0C Annobon Isl. AF-039 2010 DX-Pedition

What is the smallest dish for serious 23cm CW EME operation?

A capacitance meter kit assembled. The meter measures from 1 picofarad to 500 microfarads with an accuracy of up to 1% and less than 2%

Award series "Castles of Poland" are issued for two-way QSO or SWL-report with radiostations working from castles being on territoy of Poland.

Basic electronic circuit laws, capacitors, resistors, power circuits examples

Amateur antenna and transceiver dealer based in Grosseto Italy

An online multiple calculator of 16 impedance matching networks

KA0KA ESSB with the Kenwood TS-850/DSP-100 project

ARI Fano marconi CW contest

Mircules HAM QuickLog provides a mobile logging solution for amateur radio operators, supporting quick contact entry on iOS and Android platforms. It features multiple log file management, instant callsign information display including Country, ITU zone, CQ Zone, and DXCC number, and robust ADIF and CSV import/export capabilities. The application is designed for efficient logging with optional fields and default values, streamlining the process for both shack and field operations. The software includes dedicated support for POTA, SOTA, and IOTA activations through specific fields like MY_SIG_INFO, SIG_INFO, MY_SOTA_REF, IOTA, and MY_IOTA. A specialized contest mode offers real-time dupe checking and automatic TX exchange updates to enhance contest efficiency. Integration with QRZ.COM and HAMQTH.COM allows for direct operator information lookup and import, while Open Street Maps integration provides geographic context for contacts. The application also features a notes and scratchpad function for each log file.

Established in 1914 and affiliated with the ARRL since 1930, the Portland Amateur Wireless Association has the distinction of being the oldest Amateur Radio club in Maine

Tuned circuits for Progressive Receivers

Estonia

Franklin, Indiana

Tropospheric Propagation Forecast for several areas. Base on a computed refractive index 4 times a day.

UN DX Contest 2010 (Open Championship of Kazakhstan) result list

Virgo is originally designed to serve for meteorscatter propagation purposes in amateur radio. Maintained by Bastian, DB1BM, and Alexander, DL8AAU. Virgo is a projection of the sky visible at your location. Different to other astronomical sky views, there are no stars displayed, but the radiants of current meteor showers.

Details Amphenol's extensive product line, encompassing electrical, electronic, and fiber optic connectors, alongside coaxial and flat-ribbon cable solutions. The company designs, manufactures, and markets these interconnect systems globally, serving various communication network requirements. Their offerings support end-to-end connectivity, crucial for modern broadband infrastructure. Emphasizes the company's role as a major provider of components vital for reliable signal transmission in diverse applications. Products like _LMR(R) coaxial cables_ and various _RF connectors_ are essential for amateur radio installations, ensuring low loss and robust connections for antennas and transceivers. The focus on high-performance interconnects directly benefits hams constructing or upgrading their stations. Amphenol's broad portfolio includes specialized connectors and cable assemblies, meeting rigorous technical specifications for both commercial and amateur radio use.

The ARRL Radiogram page at wikipedia includes, radiogram handling instructions

Sun obserevatory in Catania Italy offer daily sun reports

An inexpensive spectrum analyzer for the radio amateur, with a respectable performance and a quite good dynamic range. Schematic and basic information on how spectrum analyzers works.

ic8cqf member to puparu radio club

The IK7IMP personal page provides details on the _Ham Portal_ software, an Italian-language application designed for managing amateur radio websites, including an online logbook feature. The resource also mentions the development of a J-pole antenna project, indicating a focus on practical radio construction and design. Content on the site covers general amateur radio topics, with specific mentions of equipment from manufacturers like Yaesu, Icom, and Kenwood, alongside antenna brands such as KLM and Tonna. The page serves as a hub for Icilio Carlino's amateur radio activities, offering insights into his interests in DXing, contesting (CW), and general radio operation. It also includes information relevant to the local amateur radio community in Lecce and Salento, Italy, referencing the Associazione Italiana Radioamatori (ARI) and the IQ7AF project.

This software connects to a NanoVNA and extracts the data for display on a computer, and for saving to Touchstone files.

The next generation beacon platform for the OZ7IGY beacons should encompass both the analog and digital mode, i.e. FSK and MGM in a mixed mode configuration

The Order of Boiled Owls of New York (OBONY) serves as a dedicated hub for amateur radio operators passionate about contesting and DXing. Founded to promote skill development and camaraderie within the competitive ham radio sphere, OBONY members actively participate in major domestic and international contests, striving for top scores and _DXCC_ achievements. The club provides a platform for exchanging operational strategies, technical insights, and logging practices, which are crucial for success in high-stakes events. OBONY's focus extends to fostering a vibrant community where both seasoned contesters and newer operators can learn and grow. They emphasize the importance of ethical operating practices and technical proficiency, contributing to the overall advancement of the amateur radio hobby. Members frequently achieve impressive results, with many logging **thousands of QSOs** during major events and consistently placing well in various categories.

This page provides a list of scanner frequencies for hams in the UK. It offers a comprehensive guide for ham radio operators looking to find and tune into various frequencies for communication. The page is useful for hams who want to explore different channels and connect with fellow operators in the UK. Whether you are a beginner or an experienced ham radio enthusiast, this resource can help you discover new frequencies and expand your communication network.

2N2/20 - A 20 Meter, Discrete Component CW Transceiver Built Manhattan-style

Manufacturer for splitter and combiners, baluns, directional couplers hybrid couplers, modulators, mixers, phase discriminators, antenna feeds.

EU-EW HAM radio regions map by ew2eo

BPQ32 allows a computer running under Microsoft Windows to act as a Node in a NET/ROM compatible AX25 network, and to support a multiuser Mailbox, or other similar applications.

Ham radio club in Bryan Texas

Presents the Carolina DX Association's (CDXA) _Contest Corner_, a dedicated resource for amateur radio contesting activities. It features a curated contest calendar, linking to external resources such as the _WA7BNM Contest Calendar_ and the _ARRL Contest Calendar_, providing a broad overview of upcoming events. The page also details CDXA's internal contest programs, including the "CDXA DX King" and "CDXA DX King Classic" for 2026, with specific links for members to submit their scores. Furthermore, the resource integrates with _3830Scores.com_, encouraging CDXA members to submit their contest results and select the club affiliation for tracking. It provides a direct link to view aggregated scores from participating CDXA members, fostering club competition and recognition. The "CDXA Periodic Table of Contest - 2026" is also mentioned, indicating a structured approach to contest planning for the year.

An excellent guide on choosing external audio equalizers by K3DAV

PCB for a battery charger described in the datasheet for the MAX712/MAX713 fast charge controllers.