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A premier site for antique radio collectors featuring articles, and tips on restoration and troubleshooting

A PIC Programmer for Windows, support for dsPIC, PIC10F, new PIC12F6xx family, PIC16F9xx, PIC18F

The East Tennessee DX Association (ETDXA) is an amateur radio club that welcomes all experience levels. They focus on a variety of activities including DXing (long-distance communication), contesting, and general ham radio topics. Their goal is to create a community of radio enthusiasts who can learn from each other and enjoy the hobby together. They also aim to promote the art and science of DXing while representing East Tennessee on the international amateur radio scene

F6KIM amateur radio club based in Nancy

This QST article describes the electrical and mechanical design process for two LPs that cover the HF bands from 10-30 MHz

A chart presenting the results of impedance measurements made on a variety of common-mode choke implementations across the frequency range 1MHz to 30MHz by G3TXQ

FQ Elettronica ham radio online shop in Latina Italy

Free basic and advanced system design tutorials for every component and aspect of solar power. Plus system sizing calculators, battery bank calculators and wire size calculators

Picture taken from official manual with notes on tuning stubs for each band

Eham users, FT-100 reviews

ZTEC Instruments is a pioneering modular instrument company whose product focus is oscilloscopes and function generators.

Dealer for Alpha Delta hf antennas, switeches, Outbacker and super antennas, morse code keys, coax cable and military products, managed by W8GEG from Medina Ohio

The TiltPlate is an antenna tilting mechanism that works with a tilt over tower and yagi to bring the antenna all the way down to ground level.

VX-6R Yahoo group

Sounds of the hf digital radio modes

Project with pictures and plans for an HF off center fed dipole by KB1NWH

VHF Power amplifier VLA 200 english manual

Breakaway Pipeline allows you to send audio to or from another program on the same computer. This will permit to forward audio streams, virtually like connected via a cable taken form any radio receivers, like online web sdr or your digital modes receiver like WSJT-X or fldigi to anther application running on the same PC.

Demonstrates the capabilities of CW_Shark, a dedicated 32-bit Windows application for Morse code operations. This software facilitates the analysis, decoding, and encoding of CW signals, providing hams with a versatile tool for various aspects of amateur radio communication. It supports four distinct modes: Decode Only, Keyboard QSO, Straight or Paddle Key QSO, and Straight or Paddle Key Practice, catering to different user needs from passive listening to active keying. Operators can utilize the Decode Only mode for signal analysis, while the Keyboard QSO mode allows for text-based interaction. The Straight or Paddle Key QSO mode offers a direct interface for traditional keying, enabling real-time communication. For skill development, the Straight or Paddle Key Practice mode provides a structured environment to hone Morse code proficiency. CW_Shark integrates essential functions for CW enthusiasts, supporting both learning and active participation in Morse code exchanges. Its focused design aims to assist operators in mastering and enjoying the art of _CW communication_.

Batteries for all your portable power needs.

Digital Amateur Television web sited include a D-ATV transmitter, D-ATV receiver, D-ATV modulator D-ATV schematics by RA3TTS

An omnidirectional and horizontally polarized VHF antenna by EA4EOZ

A eham article on a square copper dipole antenna for 50 MHz by K0FF

Presents a detailed compilation of **6-meter** voice repeaters operating within the 53-54 MHz segment across Australia (VK) and New Zealand (ZL), providing essential data for local and visiting radio amateurs. Each entry specifies the repeater's output and input frequencies, its assigned callsign (where applicable), the primary service area, current operational status (e.g., operational, under construction, scrapped), and a **Maidenhead grid locator**. The resource also includes the date the repeater was last heard or updated, offering insights into its recent activity. This listing is meticulously maintained by VK2KFJ, who updates entries based on personal observations and confirmed reports from other operators. It serves as a practical reference for hams seeking to utilize the 6-meter band for local communication via repeaters, particularly for those engaged in mobile or portable operations within the specified regions. The data helps operators configure their transceivers correctly for accessing these vital communication hubs. Beyond the repeater details, the page also notes common 6-meter FM voice simplex frequencies, such as the 52.525 MHz international call frequency, and lists historical packet simplex frequencies, though their current operational status is uncertain. This comprehensive approach ensures that operators have a broad overview of 6-meter activity in VK and ZL.

Ground Plane antennas and common mode

Romanian Ham Radio Club from Constanta Romania. Forum, News, Web Links, Downloads, Chat and more, YO4KCA

Round-Up of different HF Upconverters for RTLSDR by KF7LZE

Amateur radio direction finding, transmitter hunting web site from San Francisco. Triangulating a radio signal direction and plotting its bearing on a map. Hunters use doppler systems for tracking hidden transmitters anywhere in the san francisco bay area, fremont california

Yaesuvx5: this is a list devoted to the wonderful yaesu vx-5, includes lots of info and thousands of owners.

Official WEB site. Infos and News in Italian and English

Ham Radio LCD Clock Utility for Macintosh OS X and Windows by GM4JJJ

4CX1500B RF amplifier schematic, working 1.8 MHz to 29.7 MHz

Reviews of the kenwood TS-940S HF Transceiver

Limiting static surges on dipoles, verticals or end fed antennas

Flag antenna project for 160 meters band

The article details a specific method for performing maintenance on a crank-up tower, focusing on cable and rotator replacement without a full power pulldown. It outlines the necessary equipment, including a 2-section extension ladder with a horn attachment and a two-piece, 6-foot steel pipe, specifying a 1 1/4-inch diameter. The procedure involves lowering tower sections onto the internal pipe to slacken cables, allowing for their removal and replacement, and also describes how to replace the rotator while the tower remains upright. Key steps involve using the pipe to support tower sections, enabling access to the cables and bearings. The author, N5AR, emphasizes safety by instructing the reader to remain on the ladder at all times, rather than climbing the tower itself. The process is presented as manageable for a single operator, with the author having successfully completed the task on a _UST TX472_ tower. Specific tools mentioned include Allen wrenches and end wrenches for cable ends and bearing bolts. The method provides a practical approach for tower upkeep, minimizing the complexity often associated with such tasks and allowing for maintenance of components like cable pulleys and their bearings.

Picture and reference links for STL Small tumed loops antennas by DJ3TZ

This page presents a curated list of individuals who have made significant contributions across various fields while also being active amateur radio operators. For instance, Dr. Joseph H. Taylor, co-winner of the 1993 Nobel Prize in Physics for the discovery of binary pulsars, is recognized for developing the _WSPR_ and _WSJT_ weak signal mode software. Similarly, Wilson Greatbatch, inventor of the cardiac pacemaker with over **150 patents**, is featured. The resource details the diverse backgrounds of these hams, from Professor Donald H. Menzel, an astrophysicist at Harvard, to Hiram Percy Maxim, often called "The Father of Amateur Radio," who also pioneered in the automobile and aviation industries. King Hussein of Jordan, JY1, is noted for his active participation on 20 meters, engaging with fellow amateurs like Pat Kilroy, WD8LAQ. Other entries include Arthur M. Young, designer of Bell Helicopter's first model, and Marlon Brando, KE6PZH/FO5GJ, known for operating from his private island in French Polynesia. Peggy Sue Gerron-Rackham, K5PSG, gained her license after a special event station, demonstrating the hobby's broad appeal.

Amateur radio setups for portable and emergency situations.

An illustrated and printable introduction to PSK 31 by by Alan J. Gibbs, VK6PG

A document about Repeaters what are they and how to use them in a pdf file format

A well-known transverter modified for 10 MHz IF (for Softrock interface use) by DF9CY

A PIC based morse code decoder circuit

Installing a classic G5RV Antenna in Slopinv-V mode by AI4WM

IC8POF's How To index, Hamradio mods, Crazy PA Tuner project (transform any manual amplifier in an automatic one).

In this experiment the autor is going to explore the use of a 1:64 matching network on the End Fed Long Wire Antenna. Experiment will consist in build a 80-40-20-15-10 meter End Fed Long Wire Antenna with a 1:64 matching network from the documentation available on the internet

Fibreglass tubes, structural profiles and other composite materials all available from stock

U.S. Office of Cuba Broadcasting

Spider Beam antenna pictures in a youtube video

Carteret County NC Public Safety Live Scanner Audio Feed