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N4ZOU Article on AMTOR mode on eham.net

6 meter beacon from Monselice Italy JN55VF

Findu lookup interface, by station, position and prefix, Wap interface is availbale

Oakland county amateur radio society

Ham radio station in Aruba P43E

Lighthouse list, dx peditions, pictures and awards issued

LDE articles and reports about long delayes radio echoes by DF5AI

Homemade an external T/R switch for your vintage RTX by KB8OJH

Measuring noise fiugre on the W2IMU horn and the dual-dipole-feed

Times Technologies Vector Impedance Analyzer Review

Quinte West, Ontario, Canada

Collins Collector Clubs, Nets, Magazines & Lists

This group is located just north of Reno, Nevada and primarily uses simplex frequencies.

Since 1946, VK6 Weekly News has delivered weekly broadcasts to amateur radio operators across Australia, particularly in the VK6 region. The broadcasts include news updates, acknowledgments of contributors, and calls for operators to engage by transmitting news or submitting stories. This initiative strengthens community ties among amateur radio enthusiasts and encourages collaboration in maintaining the network of repeaters. The broadcasts reach various states, including Western Australia, Queensland, and New South Wales, ensuring that information is disseminated widely. VK6 Weekly News emphasizes the importance of operator contributions, thanking them for their efforts in sustaining the amateur radio community. Accessible through multiple platforms, it supports ongoing amateur radio activities and development in the region. Operators are invited to participate actively, enhancing the richness of the news content and fostering a collaborative spirit within the amateur radio community.

A page dedicated to Yaesu Mark V/FT-1000MP transceiver squarely aimed at the high performance contest and DX crowd.

A home made magnetic loop for HF Bands. This small and compact loop is designed to support small power transmissions on HF bands, from 7 MHz to 21 MHz

Our club members are located in the beautiful Rivertown of Maysville, KY and area communities.

Replacing a new VFO know to elecraft K2

Personal webpage of AE7XQ with information for those starting out in amateur radio and those who are interested in CW and QRP.

Designing and constructing a two-element receiving loop antenna array for HF operation involves specific considerations for achieving high directivity and noise reduction. This resource details a homebrew system comprising two 30-inch diamond-shaped loops, spaced 20 feet apart, which are fed through mast-mounted preamplifiers and passive signal combiners. The operational principle relies on adjusting phase delays between elements via precise _Belden 8241_ coaxial cable lengths, optimized for specific bands from 160m to 20m. Performance data, derived from _EZ-NEC_ modeling, illustrates consistent 90° azimuth-plane beamwidth and low take-off angles across the target bands, with _Receiving Directivity Factor_ (RDF) values comparable to a 300-foot Beverage antenna. The article presents detailed elevation and azimuth plots for 20m, 30m, 40m, 80m, and 160m, demonstrating the array's ability to provide strong response at low DX angles while also supporting _NVIS_ signals. Key components like the _DX Engineering RPA-1_ preamplifier and _DXE RSC-2_ signal combiner are discussed, alongside the importance of impedance matching to preserve antenna patterns. The construction emphasizes self-contained elements that do not require ground radials, offering a compact solution suitable for suburban environments and stealth installations, with a focus on optimizing receive performance independently from transmit antennas.

This battery charger circuit is regulated and adjustable to make this circuit able to charge the mosto NiCAD battery.

DF0WD DL4YHF Longwave Station include a linear transverter and antenna tuner

The Triple A Amateur Radio Association (TAARA) is identified as an ARRL-affiliated Special Service Club, operating within Beaver County, Pennsylvania, approximately 28 air miles northwest of Pittsburgh. The organization provides a community hub for amateur radio operators in its service area, focusing on local engagement and support for the hobby. While the QSL.net hosting platform indicates a 404 error for the specific page, the club's stated affiliation with the _ARRL_ and its designation as a _Special Service Club_ suggest a commitment to public service, education, and promoting amateur radio. Such clubs typically engage in activities like license classes, field day operations, and emergency communications support within their local communities.

Bloomfield Amateur Radio Club Connecticut

The Amateur Radio network now known as the Caribbean Emergency and Weather Net was established in 1958 by Colonel Henry Frew, KV4BZ, for the purpose of having a general calling frequency for the Caribbean Islands and our North and South American friends.

This online map shows the IARU beacons. If the clock on your PC is accurate enough, it will also show which ones are broadcasting at the moment and on which band.

ANARC web site

eHam reviews of the popular HF Transceiver Drake TR7

Employees and retirees of General Motors Corporation

The Linux operating system is perhaps the only operating system in the world that can boast native and standard support for the AX.25 packet radio protocol utilized by Amateur Radio operators worldwide. This document describes how to install and configure this support.

Benefits of stacking two HF antennas vertically

An experimental antenna for HF reception. It consists of a single loop element mounted on the ground. It is stealthy, small, and quiet. EZ-NEC plots and on-air test results are included.

Experimenting a low impedance feedline by G3TXQ

This page calculates the necessary GPS message (C1 message on most Icom radios) to use your Icom radio in GPS mode (not GPS-A mode) with D-PRS.

QRG 3,577.0 MHz from JN55VF

Calculate the inductance of twin lead online

Tips and tricks for CW contesting by KH2D

ARRL affiliate club in Mobile, AL

FM1FV dx station and Slow Scan Television activity

Here is a simple definition of all the Hellschreiber modes

This transverter was built in 1994 and include in this page a pdf with circuit board, and a version of this project for 70MHz.

Niles, Michigan USA

The club is based in State College, Centre County, Pennsylvania, the geographic center of the Commonwealth, in the middle of the Allegheny Mountains.