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Antennas for restricted lots, apartments and indoor antennas by VK3YE -
Understanding Baluns. This article explores some simple antenna system configurations and the effect of key system components, connections and dimensions on feed line common mode current. -
A large collection of crystal controlled scanners -
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Personal review of the Yaesu VX-6R handheld transceiver -
A Tropical Band Antenna with good Receiving characteristics -
About ham radio hobby with hundreds of related links -
Reporting program that help you keep track of contacts and take care of the routing activity of creating reports and QSL cards. Require miLog logging program -
Project of receive only filters optimized for minimal loss and very high rejection of frequencies below 75% of the filter center frequency by K1TTT -
A method of installing a PL259 coax connector, a complete tutorial on how to solder Amphenol 83-1SP connectors -
Basic information compiled and copied from NOAA SEC explaining and showing current solar weather conditions affecting amateur radio. -
Microwaves articles, The Technology Voice of the Wireless World , need registration to access -
The US Governament's International Broadcasting Bureau -
HF beacon monitoring. Check world-wide propagation, updated every 15 minutes. -
"W2IK's Personal experience being the first responder at ""ground zero"" during the WTC 9/11 disaster." -
Explore this high-resolution ITU Zones Map, a critical reference resource for amateur radio operators, international broadcasters, and telecommunications engineers. Originally established by the International Telecommunication Union – Radiocommunication Sector (ITU-R) Broadcasting Services Division (1999), this chart accurately divides the globe into 90 specific CIRAF zones. This authoritative visual guide is indispensable for planning High Frequency (HF) radio propagation, scheduling international broadcasts, and verifying locations for radio contests and awards. Distinct from the 40 CQ Zones, the ITU zoning system provides the official administrative framework used for global frequency management. This digitally enhanced version ensures maximum clarity of zone boundaries and numbering (e.g., Zone 28 for Central Europe), making it an essential tool for technical accuracy in logbooks and station management. It serves as a trustworthy standard for educators, hobbyists, and industry professionals alike. -
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Design and build custom electronics for clock enthusiasts, Juke Box collectors and the ham radio community. Produces radio interfaces, and radio upgrades. -
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N6GN's higher speed packet page for amateur radio digital networks -
W8TTH Welding & Machining , tower plates, side mounts standoffs, house brackets, torque arms. -
Demonstrates the _SQUIRL Field Day Logger_, a specialized software tool designed for efficient contact logging during the annual ARRL Field Day event. The resource details its core functionality, which includes real-time logging to easily readable text files, with filenames structured by callsign, band, and mode (e.g., K8DAA-20M-SSB.txt). It highlights features such as a real-time history grid of previous contacts, a dynamic USA and Canada map displaying contact locations, and a duplicate checker that provides audio notifications and pre-fills class/section data for previously worked stations. The software also includes an ADIF export function, enabling users to transfer logs to other general-purpose logging programs. The software's design emphasizes simplicity and ease of use, allowing for rapid on-the-spot training, as noted by users like W4CMB. It supports various operating systems, including Windows 98 through 8, and has been successfully run on Linux via _Wine_. Key usability enhancements include a "double-size" feature for improved readability and a "Space Mode" for quick field navigation. The version history indicates continuous development from 2001 to 2013, with significant additions like the real-time Field Day Map in 2003 and ADIF export in 2004, which allows for seamless integration with other logging platforms. -
The PAPA Amateur Radio repeaters are located on some of the best hill tops in Southern California! -
A simple low-power broadcast-type circuit, using a crystal oscillator integrated circuit and an a collector modulated AM oscillator -
Home Made CW paddles made from a printed circuit board and a teflon mounting block while contacts are made with simple brass threaded rods. -
The Kenwood TS-570D(G) transceiver (I), by Thierry Lombry, ON4SKY -
Reduces line noise on TS-850 -
Using patch antenna for amateur radio reception of the 13cm band with a sample 2.4 GHz LHCP patch antenna by K3TZ -
Definition of smoothed sunspot number and R12 index -
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EchoMac is a program for MacOS X users that permit access to the Echolink system -
We are committed to constantly improving our solutions in areas of GPS System, GPS Receivers, GPS Antennas, GPS Dataloggers, RF Modules, Wireless Security Systems, Automatic Vehicle Location (AVL) for real time and passive tracking -
Global Lightning Technology - Malaysia lightning Malaysia surge protection system -
This is a simple portable 2-meter J-Pole antenna. You start with a piece of 450-Ohm Ladder Line -
Portable SSTV camera that takes a picture and transmit it with ham radio SSTV -
Protecting the ham radio stations, using a good ground system -
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A full galvanic isolation interface for digital modes tested with FT-847 -
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G7LRR aerials's that work in small Garden of 20ft x 15ft with a 60ft mast -
Information about the AKAFUNK, our activities and our amateur radio station DK0SU -
Building Eggbeater II Omni low Earth orbit satellite Antennas for 70cm by ZR6AIC -
A very interesting blog article on a real world comparison on the popular multiband wire antenna, the G5RV, by Bob Raynor N4JTE -
County Hunting is one of many amateur radio activities. There are over a thousand hams who have worked all of the US counties. Some have done it several times -
Most people are not familiar with antenna tuners and what a antenna tuner actually does. -
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