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A web site maitained by KK6MK about microwave and related technical material

Map of locators of Brasil

The Licking County Contest Group (LCCG) is a small group of Radio Amateurs in Licking County Ohio who enjoy contesting.

Botswana October November 2010 DX Pedition

Learn how to build a QRP digital transceiver with Arduino, based on a project by Burkhard Kainka. This article covers the development process, including the source code, modifications made, and the addition of an OLED display for a more professional look. Discover the inner workings of the transceiver, from the receiver to the oscillator, and how components like the CD2003 are utilized. Explore the schematic design, the use of a PLL module Si5351A controlled by Arduino nano, and more. Ideal for hams looking to create their own digital transceiver for amateur radio operations.

An interesting review of the Icom 2720H VHF UHF amateur radio mobile transceiver with pros and cons

Some basic tips for successful QSLing, in particular when utilizing the services of a QSL Manager by W5UE

Martin Ewing, AA6E

Radio Amateur Society of Thailand

A Fox transmitter by VE2EMM with construction details part list and schematic diagram

A page with several testing and measurement resources usefull for those ham radio operators who needs to align or repair their own radio equipment.

Coordinates amateur radio repeater systems, control and link frequencies

Reivews of the Icom IC 7100 HF VHF UHF transceiver

The Triple H Net Association Net

Northern Neck Contest Club

A review of the MFJ-259B Antenna Analyser writtten by G3CWI

The Sullivan County Emergency Services Amateur Radio Association headquarters is located in the Sullivan County Courthouse Laporte, PA.

Operating an amateur radio club, VE2CEV details its activities, including regular meetings and a significant project involving the construction of a **satellite ground station**. The resource outlines the project's inception, team formation, equipment acquisition, and the physical installation of antennas and rotator systems. It specifically mentions the use of a dual-axis AZ/EL rotator and antennas for VHF, UHF, and SHF (2 meters, 70 centimeters, and 13 centimeters), along with the strategic use of **Heliax cables** to minimize RF signal loss. The club also provides information on its interconnected repeater network covering southwestern Montérégie. The content highlights the practical application of the satellite station for communicating via amateur satellites and the International Space Station (ISS). It details the collaborative effort of members in securing a powerful Linux server, negotiating antenna installation with local authorities, and the precise alignment of antennas. The club emphasizes its role in guiding new amateurs, offering demonstrations, and potentially organizing courses, indicating a focus on community engagement and technical education within the amateur radio hobby.

Amateur radio and family related site. Good ham links. Great pictures of antique amateur radio and military gear.

A project by Don Wilhelm W3FPR

The Clinton County Amateur Radio Association - Club Call W8GO

Serving the Copper Country in Michigan's Western Upper Peninsula. Copper Country communities include Calumet, Copper Harbor, Lake Linden, Houghton, Ontonagon, Baraga, and other nearby towns.

The Laurel Highlands VHF Society, Inc. owns and operates the Acme repeater, located on the Chestnut Ridge in southwestern Pennsylvania.

Basic magnetic loop antenna examples and loop aerials theory explained. This article inclued some interesting tricks on building magnetic loop antennas and an usefull excell sheet to help compute magneti loop antennas calculating power efficiency from 10 to 40 meters band

This magnetic loop DIY site is ment to be an introduction into making DX high quality magnetic loop antennas that will beat any dipole

Replica of David Sarnoff\'s Key, Marconi operator at Station WHI

Baofeng UV-B5 LCD background light is turned on only when some keys are pressed and stays on far a very short time. This article explains how to use flash switch which is used in UV-B6 version but in UV-B5 has no function.

Smith Chart it is a graphic tool for solving transmission lines problems

Ham radio club in west Los Angeles

Official web site of the yt9x contest team Radio Club "Sevojno" - YT9X Contest Team

Radio Club de Costa Rica

Plymouth Historical Museum radio station

The brockville amateur radio club is located in the heart of the 1000 islands on the banks of the st. lawrence river.

Fort Knox Amateur Radio Club Kentucky USA

List of countries that have been worked from the Czech Republic on 50 MHz band since January 1, 1993

Description of an HF beacon keyer with telemetry. What makes the keyer rather different is its versatility - it is a multi-mode unit, with ASK and FSK modulation, sending Feld-Hell and Morse on command

Amateur Packet Reporting System (APRS) operations often require compact, reliable solutions for transmitting position data, particularly for mobile or portable stations. This resource details the construction of the _Tiny Track-I_, a transmit-only APRS tracker designed for straightforward integration with a VHF radio and a Global Positioning System (GPS) receiver. It enables hams to broadcast their location without the complexity of a full-duplex TNC. The project outlines the printed circuit board (PCB) layout and schematic, based on an original design by N6BG, with a personal PCB drawing by SV1BSX. It includes specific component placement and notes an additional 10uF/10V capacitor (C5) for improved IC voltage decoupling, a modification not present in the original N6BG diagram. The unit connects to a computer or GPS via a DB9 female connector. This tracker is ideal for basic position reporting, offering a simple and effective way to participate in APRS networks. Its small footprint makes it suitable for vehicle installations or field deployments where space is limited, providing a **reliable 9600 baud** data stream for location updates.

On-line shop for coax cables, RF connectors, Lightning protectors, Create antenna rotators, antenna masts and mounts, amateur antennas by FlexaYagi, Tonna F9FT, ANjo-Antennen and M2 Antennas based in Eggolsheim Germany

There are quite a few variants of the design accompanied with many opinions on the effectiveness of the antenna. This page features links to some similar projects and a homebrewed personalized version of this portable antenna tuner

This software loads WPX type ADIF files with the <PFX:xxx> tag and calculates the different callsign prefixes. The software will load and capture the totals for big files. ADIF files must have the .adi file extension.

Inventor of the Beverage antenna

This resistor calculation tool shows which combinations of two resistors, series or parallel, gives a match better than the closest standard value.

A chronological history of the development of radio, up to the start of the broadcasting era by Greg Whiter, VK3CA

Network Analyzer on an Arduino Shield which covers from 0-72MHz using an Analog Devices AD9851 DDS chip