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SDARC The Swindon and District Amateur Radio Club England UK

A home made Antenna Tuner made with a simple inductor and a few spare parts. Despite the title, the author succesfully tested this ATU with higher power inputs.

An unique method to listen to QRSS signals is... using an old tape recorder with variable speed

The Crossroads of America Amateur Radio Ladies Association is an association of female amateur radio operators from Terre Haute, IN, and the surrounding area.

Data sheets for most of the major components of the K2

The Syrian Scientific Technical Amateur Radio Society.

UK frequency list provide reference table to lister to Police scanner channels UHF VHF, Amateur Repeaters, Ambulance CB Radio CoastGuard Rescue, marine VHF, Military and more.

Amateurfunk - Ortsverband P47 Wendlingen am Neckar

Work any five Province of Québec Lighthouses

The website for VA3XPR is intended to provide users with information about the VA3XPR repeater, plus news and information related to ham radio digital voice communications.

Schematic diagram circuit to build a RS232 serial interface for the Yaesu FT 1000D, works also as CW Keyer control with Log-EQF software. May be used with other Yaesu HF Transceivers.

These band filters are based on 3 or 5 sections Butterworth band pass filters, maintaining 50 Ohm impedance, and when built around toroidal inductors, can be made very compact.

The South Milwaukee Amateur Radio Club is an ARRL general-purpose affiliated club with Hams from all interest groups

Keller peak repeater association, operate an open amateur radio repeater in the San Bernardino, California, mountains.

A review of the GAP Challenger DX Antenna that is not a traditional 1/4 wave vertical, but is a vertical dipole, this gives it several advantages over a standard 1/4 wave vertical, mainly the reduced number of radials, with excellent performances.

A HF power amplifier with a push-pull of AFT09MS015N. The (small-signal) gain of the amplifier is around 26 dB in the lower HF band and goes down to about 24 dB on the higher end and still around 21 dB at 50 MHz. Its input matching is relatively good at the lower HF and degrades above 10 MHz.

Free to download PDF book about operating The VHF/UHF bands written in the early to mid-1990s by a team of experienced VHF/UHF DXers and equipment developers, in an effort to pass on their knowledge and stimulate further developments.

Getting Started on the Magic Band is a very exaustive article about operating the six meters band. It covers several aspects of operations, techniques, tips and guidelines on getting started on the six meters band.

The Texas Slow Net meets daily at 7:45 PM local time, on 3570 KHz +/- QRM. TSN is a traffic handling training net. All stations licensed for the frequency are welcome to participate

VHF repeater located in bedale north yorkshire

Western Suburbs Radio Club NZART Branch 03 - ZL1AC

The Tararua Amateur Radio Club, Branch 06 of the New Zealand Association of Radio Transmitters (NZART) is an incorporated society for Radio Amateurs and interested persons.

HA3AUI in Senegal Feb to March 2011

This article will cover gathering some software tools used for RFI location and removal.

A detailed review of the Icom IC-7700 by VA7OJ/AB4OJ

Elecraft K2 mod. Narrower bandpass filter, better stopband attenuation

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

Yaesu FT-450D HF / 6 Meter DSP Transceiver, a nice affordable transceiver for amateur radio use, but understand the caveats.

Amateurfunk Homepage des DARC Ortsverbands Vaterstetten C01

A magnetic loop antenna designed for 14 MHz. This kind of antennas is also known as STL, small transmitting loop and can be an excellent solution when you are not allowed to put antennas on your roof

A project by LY3H of a complete Scalar USB network analyzer with freeware windows software, sweep range 100 kHz to 160 MHz, powered by USB.

The Salvation Army Team Emergency Radio Network (SATERN) is a vital resource for amateur radio operators involved in emergency communications. This network facilitates the coordination of communication during disasters, ensuring that vital information can be relayed effectively. SATERN operates through a series of nets that connect operators across various regions, allowing for real-time updates and support during emergencies. Participation in SATERN not only enhances your skills as an amateur radio operator but also contributes to community resilience. Operators are trained to handle emergency traffic and provide assistance to those in need. By joining SATERN, you become part of a dedicated team that prioritizes safety and communication in times of crisis. The network encourages regular participation in drills and training sessions to ensure readiness when real emergencies arise.

An home made simple spectrum analyzer project includes pictures and diagram.

Most Common Service Questions for the Icom IC-R7000 and IC-R7100

A stacked Yagi array for ZL1SIX 2m WSPR

How to build a Simplified Arduino CW Trainer, this is a version that does not need a keyboard.

This Field Day Vertical Antenna project is the result of many years of attending various field day sites and realizing that what was needed is a simple, easy to assemble vertical antenna. The design of this Field Day Antenna is not very novel and leverages ideas from Butternut verticals and ARRL publications. The one essential requirement was that the antenna can be raised by just one person. The design of this Field Day Antenna is an above ground mounted ground plane vertical.

SMARC provides a list of HF nets available to local Hams with the right equipment. Join one or all of them

Get the most out of your station with K6TU.NET professional grade propagation prediction, and model your antenna performance over actual terrain using high resolution elevation data

Fractional Wave Loops antennas are a sort of magnetic loop antennas that differs in several aspects from the standard ones. Author is now SK however in his page he posted several examples and interesting links

DX Pedition from Palau T88RF Apr.30 - May 4, 2012

The Mission of CCARES is to train and organize amateur radio operators in emergency communications.

The Davis County Amateur Radio Club (DCARC) is an organized, incorporated group of individuals with an interest in Radio Communications. Most of our members live in Davis County, Utah and hold Amateur Radio Licenses.

Several belgian hams will be qrv from liechtenstein (hb0) between the 19th and 22 nd of september 2012

QSK 2500 enhances HF amplifiers by enabling full break-in (_QSK_) operation, allowing for seamless communication during CW transmissions. This device supports **all** HF transceivers that are QSK-compatible, ensuring versatility across various setups. The QSK 2500 facilitates quick switching between transmit and receive modes, which is crucial for effective DXing and contesting. With its straightforward installation, operators can achieve **improved** responsiveness in their communications without the need for extensive modifications to their existing amplifiers. This project is particularly beneficial for those engaged in high-speed CW operations, where timing is critical.

FP, St Pierre - Miquelon from about 15 March to 21 March 2011

Home of the HSMM Mesh is a reference web site for HamNet enthusiasts

Homepage of the Dutch amateurradiostation PE4BAS.

This project is a full wavelength, horizontal, loop antenna for the 40 metre Amateur Radio band, built using insulated copper wire in a diamond shape, supported by egg insulators, tethered to 4 masts, each 6.5m high