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Showcasing innovative RF solutions, Hofi Hochfrequenztechnik manufactures high-quality _antennas_ and RF switches. Their products, including the **versatower** and **fritzel** brands, cater to both casual operators and serious DXers. With a commitment to performance, Hofi's offerings enable operators to achieve optimal signal gain and reliability in various conditions. The company's expertise in antenna design ensures that users can effectively communicate across _HF_ bands, enhancing their overall operating experience. Whether setting up a new station or upgrading existing equipment, Hofi provides essential tools for successful ham radio operations.

Amateur radio station c31lj andorra 28.256 MHz

The website for the Northern California Amateur Radio Kids Group.

An article describing basic concepts of antenna radiation, and in particular directional antennas like Yagi antennas or Quad antennas and how they determine the direction or signals.

Cambridgeshire England Direction Finding group

KB6NU web log

How to configure the ICOM IC 7100 to correctly work with FLDIGI on Windows 7 64 Bit. How install USB drivers and how to properly set COM ports and how to configure CI-V

The premier flea market for radio, electronics, Computer & communications equipment in Indianapolis

Besides protection from lightning, this ARRL "All Risk" Ham Radio Equipment Insurance Plan also gives you the protection you need from loss or damage to your amateur station

This is a standard calculation method that can help you while tuning dipole antennas, by adjusting wire lengths. This method can be used also when you need to add lenght to your wires, and can be additionally used to quarter waves vertical antennas

Yahoo 360 hma radio blog

An interesting article dedicated to hams that want to start learning morse code, including notes on Methodology, online training tools, and a guide to Morse Keys

Icom 706MkIIG Filters, Make a narrow CW filter work in SSB for the digital modes

The Chatham-Kent Amateur Radio Club Online

Blog post announcing that Ham Radio, shortwave listeners and broadcast band listeners will be protected by Law in Europe

HAM ramblings from VK3TEN

An Easy Guide to UI-View32 and UISS produced by Mineo Wakita, from installing UI-View32, setting up and configuring software and using the UISS

+/- 15 V, 1.5 A power supply project

The DXCC World Map web application is a modern and interactive mapping tool designed for shortwave radio enthusiasts. It showcases a high-quality world map along with the Sun's position, sunrise and sunset times, the terminator, coordinates, QTH locator, azimuth, azimuth map, current DXCC list, Aurora, and WWV Geophysical Alert Messages. Additionally, it provides the SFI, X-Ray, Kp, and Ap indices.

Niles, Michigan USA

A complete guide on using the HF amateur radio bands, and the differences with VHF, using filters, influence of solar weather, the split mode and phonetic alphabets.

W7ED amateur radio club

Posting notable DX contacts

A Neat Little Tool For The Bench. The basic information needed when testing a multi-conductor cable like CAT-5 is that each wire in the 4 pair cable goes to the correct pin in the RJ-45 plug and that all crimps are solid.

The San Bernardino Microwave Society, operating under the callsign _W6IFE_, serves as a significant technical hub for amateur radio operators specializing in frequencies above 1 GHz. This organization's influence extends across Southern California, providing a centralized resource for advanced RF experimentation and **regional frequency management** within the microwave spectrum. Its permanent value lies in its extensive archive of technical papers and project documentation, which are critical for operators engaged in high-frequency design and deployment. The society's infrastructure is primarily intellectual, focusing on the dissemination of specialized knowledge rather than a conventional repeater network. It offers a robust collection of technical papers from prominent members like K6PIP, K6BLG, and WA6EXV, covering topics such as Rubidium oscillator data, logging software, and filter design. This resource facilitates advanced amateur radio operations, including participation in microwave contests and the development of custom transverters for bands like 24 GHz. The site also details various member projects, such as the Owens Valley Radio Observatory Project, showcasing practical applications of **RF propagation analysis** and system integration. DXZone Focus: Microwave | Technical Papers | RF Propagation | Contest Results

WRTC.info is collecting information from all WRTC events.

Since 2011, crkits offer radio kits that you cannot find on eBay or AliExpress. Includes HT-1A 20/40m Dual Band CW Transceiver Kit, D4D DSB Transceiver Kit for Digital Mode, R3500D ARDF Receiver, CW Transceiver Kit

Ham radio transmissions can interfere with television reception. This is called television interference, or ham radio TVI. Consumer adoption of cable television has significantly reduced ham radio TVI. But the introduction of IPTV, or television over phone systems, has brought ham radio TVI back, often with a vengeance. Here's why

If your antenna is fixed in one direction, you will notice that your antenna works perfectly only during fall and spring.

Ham shack located in a caravan and run by solar power. This page describes VK5SW experience of converting an old, disused and rundown caravan, to a fully functional solar powered Ham Radio shack.

Amateur radio in cartoon type TV shows, Simpsons, Southpark, Family Guy, SpongeBob

The PL259/SO239 (aka UHF) connectors have harsh critics and religious defenders. Questionable measurement techniques complicate matters.

UMASS Amateur Radio Club

A top band shortened vertical antenna project. This project includes drawing and MMANA-GAL output screens.

Indonesian Awards

What do Hams do? by Victor Amateur Radio Association

Article on importance on correct procedure to calibrate your PC sound card for digital mode operations

The Windom antenna, one of the oldest antennas developed for amateur use, has had a complicated history, one as interesting as the theory of the antenna itself.

A portable operation experience with a SpiderBeam pole during a contest, testing wire antennas, like dipole and delta loops configurations on 20 40 and 80 meters band.

Article cover hints and tips on ham radio or amateur radio contesting and contests

Amateur / HAM / CB Radio Resources and Information including reviews, projects, licensing and FCC Enforcement.

The Egyptian Radio Amateurs Society

The ARI Tuscany Regional Committee sponsor a special Award during the 2013 UCI Road World Championships held in Tuscany from 22nd to 29th September 2013

The program sends morse code audio via sound card and can be used under Windows in Danish only

Free ham radio utilities written in LabVIEW includes Open Wire Calculator, Dipole Peak/Null Angle Calculator, a Coil-Shortened Antenna Calculator ad interesting Round Coil Inductance Calculator and a Skyloop Antenna Calculator

Ham or amateur radio is a fascinating hobby for all

A new ham radio shack desk made of a solid core oak door.

A series of slides, videos and handouts to help people get started in amateur radio in the UK.