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Article cover hints and tips on ham radio or amateur radio contesting and contests

Corner Press full service printing since 1971 & QSL's SINCE 1961, founded as The WA2WAO Press. Made in USA

Ham or amateur radio is a fascinating hobby for all

This guide explores different radio bands that hobbyists use to talk to each other worldwide. It explains how these bands work and what they're used for. From low-frequency to high-frequency bands, each has its own unique features for people who enjoy communicating through radios

IOMARS affiliated to the RSGB in April 1948. This is the only OFFICIAL site of the Society. The primary club for Amateurs on the Isle of Man

How to make a custom cable to program your baofeng or kenwood radio. Includes a video on how make a Baofeng Programming Cable for Chirp on Mac OSX

Remote Ham Radio via WebRTC Audio Raspberry Pi 3. Stream Transceiver Audio to and from the remote station though a Browser using WebRTC.

VK3MO, An inspiring Australian Amateur Radio operator

Just my little corner of the world, one radio at a time

Seaside Tsunami Amateur Radio Society

Le radio club de la Cote Basque, amateur radio pages about HF / VHF / UHF / digital modes, Projets with arduino and raspberry , training classes.

Live police radio feed from Gippsland Police Region 5 Division Q1 and Q2. Victoria Australia

I am an EMT-B,an Incident Commander for NM Search and Rescue and an Amateur Radio Operator - KD5KTY Dedicated to the Preservation of Life through Search, Rescue and Education services.

Mirage BD-35 2M/70CM RF amp high SWR, how to troubleshoot

Datasheet Locator is a free tool that enables you to locate product datasheets from hundreds of electronic component and semiconductors manufacturers

Harris DMR Manufacturer, provides advanced, technology-based solutions that solve government and commercial customers' mission critical challenges

Ascension Ham Radio Club based in Gonzales Louisiana

A new ham finding his way in the hobby

Contest station situated in the South West part of the Netherlands in the province of Zeeland

Stuff about amateur (ham) radio, especially VHF/UHF, QRP, portable and mountaintop operating

Paulding county's oldest and largest ham club. Skywarn

MCRCA Monroe County Radio Communications Association

A homemade Jpole antenna for 70 cm band made with 6mm copper pipe

Australian antenna manufacturer, Mobile 1 CB Radio Antennas, Mobile Phone Antennas 3G, NextG, EDGE Digital Radio & TV Antennas Broadcast Band Antennas Airband Antennas Amateur Band Antennas Scanner Antennas Commercial Antennas

The branch of electronics dealing with devices that generate, transform, transmit, or sense optical, infrared, or ultraviolet radiation

On December 12, 1901, Guglielmo Marconi successfully received the first transatlantic wireless communication, a Morse code "S" (three dots), at 04:30 GMT. This article details the setup for this groundbreaking experiment, noting Marconi's receiver in St. John’s, Newfoundland, Canada, utilized a _coherer_ and an antenna elevated by balloons and kites. The transmitting station at Poldhu, Cornwall, England, featured twenty-four 200-foot ships' masts and a 25-kilowatt alternator. The resource explains how this contact disproved contemporary beliefs about radio wave limitations due to Earth's curvature, later understood through _ionospheric propagation_. It frames Marconi's achievement as the "very first DX" in amateur radio terms, defining DX as telegraphic shorthand for distance and _DXing_ as the hobby of receiving distant signals. The article also provides external links for further reading on Marconi's experiments and the science behind transatlantic radio signal reception.

APRSTT translate-O-Matic convert online your callsign in DTMF

Sell generator, and generator parts from generac, guardian, asco, and more

An Android based CW practice program based on simulated QSOs. The app will generate Morse code sounds from 5-50 words per minute.

Repairing a Cushcraft R7000 antenna featuring several problems, mostly concerning coils and the insulating parts of the antenna.

An home made multimeter using a SparkFun multimeter kit, includes a time lapse movies of multimeter kit assembling

Reivews of the Icom IC 7100 HF VHF UHF transceiver

Remote Control Panel for ICOM IC-M710

Personal HamRadio Blog

Japan Ladies Radio Society

Lightning Arrestors, High current filters manufacturer

Tektronix Oscilloscope Tutorial Learning Center, includes tutorials for understanding oscilloscope basics and operation.

One common semiconductor material, silicon, is far more widely used in electronics than germanium, partly because it can operate at much higher temperatures. Semiconductors are crystalline materials with electrical resistivity values between conductors and insulators, whose conductivity can be altered through _doping_ with impurities like arsenic or phosphorous to create N-type (excess electrons) or P-type (electron vacancies) materials. Semiconductor devices, such as diodes, transistors, and integrated circuits, leverage these properties to control electron flow in circuits. A diode, a two-terminal device with an anode and cathode, primarily permits current flow in one direction, making it useful as a rectifier to convert AC to DC. Specialized diodes include Zener diodes for voltage regulation and Light-Emitting Diodes (LEDs) that produce light when current passes through them. Logic circuits, fundamental to digital electronics, have binary inputs and outputs, performing functions like AND, OR, and NOT gates, and can be constructed from various binary devices including solid-state diodes and transistors. A transistor is an active semiconductor device with at least three terminals (base, emitter, collector), capable of amplifying current. Integrated circuits (ICs), often called chips, are electronic circuits built on a semiconductor substrate, typically silicon. ICs are classified by transistor type (bipolar or MOS) and integration scale: Small-Scale Integration (SSI) with fewer than 10 transistors, Medium-Scale Integration (10-100), Large-Scale Integration (LSI) with 100-1,000, and Very-Large-Scale Integration (VLSI) with more than **1,000** transistors. ICs can be analog, digital, or hybrid, offering virtually limitless functions.

How to build a limited space 10 and 20 meter band Square Halo DX antenna. A horizontally polarized antenna for 10 and 20 meter band, which is suitable for a limited space.

DX Pedition to St Helena 10-80 meters bands SSB RTTY FT8 CW by G0VDE

A Practical, 5-Band Homebrew Wire Beam the Upside-Down Umbrella

Die kontestgruppe dk0bn

Eastern and Mountain District Radio Club

Club in Cleveland, White County, Georgia, promoting friendship, mutual assistance, and learning.

Kirisun a fully indipendent company on the professional radio communications equipment incuding DMR, portable two-way radio and mobile radio and repeaters.

Internal Bluetooth interface for miniVNA, Bluetooth connection to the PC allow Full cordless operation with ao external components

Amateur Radio operators from the area around the town of South Lyon in Southeastern Michigan

This is a project aboout compact and portable a QRP antenna tuner for use in the HF ham radio bands from 3-30 MHz, even if it's a compact and efficient project this small antenna tuner will not match any possible load.

Remembrance Day Contest Logger free Windows software. Remembrance Day is a popular contest in Australia.

Setting the pace in Cleveland County Amateur Radio for over 50 years. ARRL Affiliated / Sponsor for ARES (amateuer radio emergency service) of Cleveland County, NC. Sponsor of the famous Shelby Hamfest