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Shareware Windows logging program for the 10-10 QSO party

Ham Radio at its best in the Lakes Area of Brainerd, MN, USA

UV-3R Review at G4ILO Blog with long textual review, pictures and some sound files

Established in the early 1970's has a Membership of about 50 men and women

Used test equipment from Agilent, Tektronix, R&S, Fluke, Marconi, Acterna, Anritsu, R&S

Azimuthal map with DX spot reporting updated online taking source from DX Cluster spot or Skimmer

Multi-frequency radio interferometers

Getting Started in PC Soundcard Digital Radio, basics of amateur radio digital modes

Amateur radio products,wire and yagi antennas, SDR Receivers, upconverters, pre-amplifiers, towers and RTL funcube dongles by CT1FFU

Java based interface to dxWorld.com for Linux by K0EMT

FCC_Call is a program that allows you to create a database from the FCC license records and to look-up the FCC records by call, name or city. It requires TRX-Manager or VB5 runtime installed.

The Guernsey Amateur Radio Society (GARS) provides a central hub for amateur radio operators in the Bailiwick of Guernsey, offering resources like a local _GU Callbook_ and specific notes tailored for visiting operators. The society maintains an active presence, holding regular meetings on Friday evenings from 7:30 to 9:00 PM in a unique World War II bunker located within the grounds of the Beau Sejour Leisure Centre. Beyond in-person gatherings, GARS facilitates on-air activity with a 2-meter net operating on 145.525 MHz every Tuesday night at 8:00 PM. Additionally, a DMR net is hosted on Thursday nights at 8:00 PM via the _GB7GY_ repeater, catering to digital mode enthusiasts. These nets provide opportunities for local members and visitors to connect and exchange information. Phil Cooper, GU0SUP, serves as a key contact for the society, managing inquiries and web content. The club's location is precisely described as being down a concrete staircase to the left of the road when approaching the Concourse entrance, making it straightforward for newcomers to find their way to the club's distinctive meeting place.

Review of the popular Heil PR-781 mic, connected to an Icom IC-7800 by k3dav

Evaluation of various microphones on-air using an Icom IC-7700 by VA7JW

The intent of this article is to help the semi-non-technical person understand what is inside the Drake TR-7(A) Transceiver, how it works, and discusses simple adjustment and modifications the end-user can perform

Homepage of radio club oz1als, contest results, pictures etc

Remotely-Operated 1200 Baud AX.25 Narrowband Packet Radio and APRS on a Baofeng UV-5RA and Raspberry Pi 2

Liga Panamena de Radioaficionados

Presentation about Practical Antenna Modeling Using the NEC Codes with examples of HF wire antennas and 4NEC2. How to define and edit the models, Running the simulations, Work some examples, Variables usage, Deal with Feed Lines and ground

remoteAudio is an multi platform Audio streaming application for Amateur Radio purposes. The most typical use case for this software is the remote operation of an amateur radio station. remoteAudio supports multiple users and multiple audio sources. At any time multiple clients can listen simultaneously on the same radio, although remoteAudio only allows one user to transmit.

Hand made RF sweeper made to adjust the pass band of crystal filter

Providing solar on-line activity resources for the joy of solar science exploration

The electchester vhf club is located in flushing, queens, ny and operates an arrl coordinated, 2 meter, vhf repeater designed for amateur (ham) radio use.

What constitutes the ideal 28MHz beacon from the listener's perspective by G0AEV

2009 IARU HF World Championship Contest Rules

How to setup a proper antenna feed line with a particular attention to RFI by K0GKJ

The collinear antenna, or Marconi-Franklin antenna, is an omnidirectional, high-gain antenna composed of in-phase half-wave dipoles aligned vertically. By using quarter-wave transmission line segments, it maximizes gain at a low horizon angle, outperforming a half-wave dipole. Adding segments increases gain but narrows bandwidth. A popular DIY version, the CoCo antenna, uses half-wave coaxial cable segments connected by non-radiating transmission lines. Built with stable velocity factor cables, a matching quarter-wave sleeve balun, and ferrite rings for attenuation, the antenna achieves performance comparable to commercial models.

The resurrection of a R-4C by W7VO

Hamnet IP-Database mapping system mostly european based.

Pagina del Radio Club Trelew, provincia del Chubut, Patagonia Argentina

This article shows how to power an amateur radio station from solar power using four kits that have been designed to work together in a modular way, each kit provides a unique function.

A summary or tutorial about the basics of the spectrum analyzer, what it is and what it is used for.

Taiwan radio club

This home made antenna provides around 10.5dBd gain on 70cm, and 6.5dBd gain on 2m, which is more than adequate to work the FM satellites with a handheld dual band radio

Yaesu FL-110 160-10m HF linear ampflifier as ideal power amp for the FT-817 by N2CHK

A delta loop antenna for 20 meters band designed with MMana with a tuning system made in a classic stub configuration

ARI Macerata Official Web Site

German ATV Club

Amplifiers, filters, attenuators, mixers, PLL, switches and frequency dividers, signal generators, power detectors, transimpedance amplifiers, variable gain amplifiers and more

Some techniques on homebrewing yagi antennas by VK5AJL

Dealer of electronic test equipment dealers since 1977 equipment manufactured by Tektronix, Hewlett Packard, General Radio, Dranetz, Bird, Fluke, ENI, ESI, Wavetek, Narda, Keithley, Weinschel, Microlab/FXR, Systron Donner, Kepco, Lambda

VHF from Scandinavia, EME, Tropo, Aurora and expeditions.

The NWAPRS is here to support APRS events, activities and amateur radio enthusiasts primarily in British Columbia, Alberta, Northwest Territories, Washington, Oregon, Idaho, and Montana

Sponsored by TARA Troy Amateur Radio Association The worlds very 1st. PSK contest

Provide an ATV repeater function for the North Jersey Exterior Area that is available not only for general amateur radio use, but also for providing a unique communications resource during emergencies as well (FCC Part 97.1 (a))

The Vacuum Tube FAQ by Henry Pasternack