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Understanding Amateur Radio NVIS Antennas and Propagation, derived from The ARRL Antenna Book and QST Articles

Just Learn Morse Code is a free windows software designed to make it easy to learn Morse code, as well as improve the skills of those who already know the code

Homebrew GMRS 3 Element Yagi yagi for 462-467 MHz

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

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

VX-6R Yahoo group

Shows which beacon is currently transmitting on the selected radio band Displays information about transmitting beacon Informs about direction and bearing from users position towards transmitting beacon

ICNIRP is a calculator software that allows you to determ safety distances for many know amateur radio antennas with respect to ICNIRP limits developed by DL9KCE

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

A presentation of a HF multi-band sloper antenna. This antenna project is for low band operations, and antenna presented in this article works on 40 80 and 160 meters band. Article is in Polish.

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

Ground Plane antennas and common mode

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.

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

Yankee Oscar Club of Northeastern Ohio using the sideband freq.

Batteries for all your portable power needs.

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

Round-Up of different HF Upconverters for RTLSDR by KF7LZE

This web article by VK3BLG details the construction of an experimental 70cm (432 MHz) circularly polarized patch antenna, intended for satellite communication. The resource provides dimensions, feed point specifications, and impedance matching considerations for a single patch element, with discussion extending to array configurations for circular polarization. Construction involves a copper patch element on a dielectric substrate, fed via a coaxial cable. The design is based on information derived from AO-40 satellite antenna specifications, focusing on achieving circular polarization for satellite reception. The article includes specific dimensions for the patch and feed points, along with impedance values. Validation is implied through on-air satellite reception reports, with initial signal reports of **1 S-point above noise** for AO-40 beacons using a grid reflector, improving to **3-4 S-points above noise** with a 2-turn helical feed. The author references a _NanoVNA_ for impedance measurements and discusses the relationship between slot and dipole antennas in the context of patch design. DXZone Focus: Web Article | 70cm Patch Antenna | On-Air Satellite Reception | Circular Polarization

VHF Power amplifier VLA 200 english manual

Limiting static surges on dipoles, verticals or end fed antennas

A Morse code TEXT-to-MIDI converter that creates a Morse code standard MIDI file from ASCII text.

Spider Beam antenna pictures in a youtube video

Easy to use award tracking software for ARRL, 10-10, CQ, HRN, OMISS, EPC, RAC and more.

U.S. Office of Cuba Broadcasting

Yaesu FT920 youtube review by Roy Sargon ZL1LK

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

This article first appeared in the October 1998 issue of Monitoring Times

Carteret County NC Public Safety Live Scanner Audio Feed

Amateur radio setups for portable and emergency situations.

TN5R Congo DX Pedition - Search the online log

Official WEB site. Infos and News in Italian and English

The MEL PICBASIC Forum serves as a community hub for users of Micro Engineering Labs PICBASIC compilers, facilitating discussions related to PIC microcontroller programming. It features dedicated sections for various compiler versions, including mel PIC BASIC, mel PIC BASIC Pro, and PBP3, each containing numerous threads and posts detailing specific programming challenges and solutions. The forum also provides areas for frequently asked questions, general PIC BASIC discussions, and commercial assistance requests. Specific sub-forums address advanced topics such as PBP Extensions, Code Examples, and AI and PICBASIC, offering insights into extending compiler functionality and integrating artificial intelligence concepts. Furthermore, the platform includes sections for Data Communications, covering USB, I2C, 1-Wire, GSM, and serial communications, which are critical for interfacing PIC microcontrollers with external devices. A dedicated area for PIC Programmers allows for discussions on programming hardware and techniques. The forum's utility is enhanced by its extensive archives of user-contributed solutions and examples, which can assist hams in developing microcontroller-based projects for radio applications. The platform's structure supports knowledge exchange among hobbyists and professionals working with PIC microcontrollers.

A simple coax cable tester built based on the KG0ZZ project.

About the basics of what is a discone antenna for wide band or bandwidth omnidirectional applications

An improved version of DK9NL QRM Killer, with dedicated noise sampling antenna for completely filtering of plasma TV rattle on HF bands

Antenna for limited space, made from 24AWG wire helically wrapped around the top element of a 3-element cane pole, is basically a fully-loaded vertical and performance are limited and should represent the last resort for extreme cases.

160 meter tx antenna array

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.

Friends keeping in touch via amateur radio and RV's

A table summarizing common coax cables features

A complete test report on Icom IC-7851 obtained with some lab tests, in a 21 pages pdf file.

World Map - Time Zones realtime map allow to select and display current time for selected regions

Educational software for Palm Pilot and Windows that quickly teaches Signal Flags and Morse Code using mnemonic techniques and a well designed flashcard program

hamelmer.com

A good reference site for antique radio, bakelite paskon plastinc decription, microphones picture and antique radio gallery

The Rolling Home Ham Radio on the Road

2 transistor transceiver for 28MHz CW

This article will help the New Ham to be more at home on repeaters and understand the operation and procedures on Ham Radio Repeaters.

Kenwood TH-D7(G) and TH-D7A commands reference