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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

To encouraging all aspects of Amateur Radio operation, including public service and radio experimentation for scientific improvement of the art.

Quilon Amateur Radio League Kollam Kerala INDIA

Motor city radio club, mcrc, w8mrm

Documents the construction of a **VHF/UHF** antenna addition for the Buddipole HF antenna system, leveraging the existing Versa-Tee component. The project details the fabrication of a custom antenna mount from angle aluminum, including specific drilling and tapping for 3/16"-24 bolts, and the creation of radials from Simpson Strong Tie Insulation Supports. It specifies radial lengths for 70 centimeters (6 inches from the center stud) and 2 meters (19 1/4 inches), noting the use of wire nuts for safety. The resource outlines the construction of a mast from 1/2" ID PVC conduit, connected with 3/8"-24 connecting nuts and bolts, mirroring the Buddipole's modular design. It describes the integration of a mobile dual-band antenna with a 3/8"-24 mounting stud and the custom coax setup with BNC and **PL-259** connectors. Field testing with an FT-817ND and a separate dual-band SWR meter confirmed good SWR on both 2 meters and the 440-450 MHz section of 70 centimeters, with positive reception reports during Field Day activities. Further, the article describes the creation of a custom carrying solution, including a 22-inch tripod bag and a fabric roll-up, to emulate the portability of the original Buddipole system.

My place in cyberspace for thinking out loud about the Three Rivers Area Montioring Association and its Sunday evening Pittsburgh Area Scanner Net as well as ham radio and the Linux operating system

Australian manufacturer of HF Communications Antenna Systems for Military, Comercial, Mining & Amateur Radio

Not-for-profit, Michigan fraternal organization.

On this page you will find information about previous, current and future operations of our contest team, different articles, links and info about contesting, DXing, contests calendar, propagation, antennas, equipment, awards, and much more.

South Florida FM Association Web Page

News, frequency guides and programme information, on shortwave and other international media.

Valley of the Moon Amateur Radio Club website provides information on club events, history, officers, licensing, and how to join. Users can download newsletters, hamfest flyers, and net scripts. The club serves the Sonoma Valley wine country, holding monthly meetings, weekly nets, and breakfast gatherings. The club call sign, W6AJF, honors Frank Jones, an Amateur Radio pioneer. Various events are listed on the site, including picnics, VE testing, and breakfast nets.

Technical specifications and details of the Yaesu FL-2100B HF Power Amplifier

An article describing a homemade 40m wire OCF Dipole

The Delaware Valley Ragchew Club is an amateur radio club located in Southern New Jersey.

The ECBF is the organization from all cb's in the Europe.

Adding a full power output 12 meter band capability to the Yaesu FL-2100 despite of 10 meter.

G-TOR is a trademark of Kantronics, Inc. G-TOR (Golay-Teleprinting Over Radio) can be viewed, in part, as a variant of the Automatic Link Establishment (ALE) protocol, outlined in MIL-STD-188-141A.

Review site of the Icom IC-706 MkIIG by KV5R

Encouragement for Little Pistols, article originally written for and published in SKIP the monthly newsletter of the Fresno Amateur Radio Club

The program can be used to calculate inductors (coils) and their number of turns on ferrite cores, ferrite shells and air coils. These can be used for baluns, Ununs, bandpass filters, low pass filters, resonant circuits, and more. The technical specifications of the cores are already integrated in the program. Application is free and runs on Windows 32 bit versions only. To make it run on Windows 10 64 bit need to be unzipped in a single folder.