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AM stereo receivers are available, with technical descriptions of modulation and demodulation, as well as listing of known AM stereo stations.

Two-meter and aircraft band receiver specifically designed for RDF on foot, sold by Bryan Ackerly VK3YNG

Kc2uoo review of the yaesu ft-450 in this youtube video

Fabricates baseplate components, and provides hardware kits for DIY hex beam, spiderbeam and moxon antennas.

How to become a High Speed CW operator, summary of information by AH6NB

The County Hunting software, version **6.1**, is designed for amateur radio operators focused on USA-CA Award tracking and logging. This application supports _Windows_ environments and facilitates the import and export of ADIF files, enhancing QSL management by integrating electronic confirmations via LoTW and e-QSL. The software has been updated to align with the new award rules managed by MARAC, following the discontinuation of CQ magazine's involvement. Users can visualize QSLs post-scanning and benefit from enhanced ADIF import functionality. Version 5.4 introduced accelerated county searches via FCC databases, with filters for QSL confirmations and e-QSL enhancements. The software also includes a feature for backing up and restoring QSOs by LoTW confirmations. Visual County tools have been refined, offering improved map interactions and the addition of county flags. The software supports various digital modes including FT8, FT4, and SSTV, and includes functionality for PSK250 and 60m bands. The application is multilingual, with support for Italian, English, French, and Spanish, and provides automated updates and web-based county searches. DXZone Focus: County Hunting | ADIF | Windows | LoTW

6 Meter 1/4 Wave Antenna by Mike Fedler N6TWW. A detailed article with pictures of construction details of this 50 Mhz antenna

A simple antenna analyser for the HF spectrum with a built-in signal generator with 3-digit LED frequency display.

Cloudlog is a web-based amateur radio logging application built with PHP and MySQL, supporting station logging activities from HF to microwave. It integrates with companion tools for CAT control and automation, offering a flexible solution for managing QSO data. The application provides a self-hosted platform for amateur radio operators to maintain their logbooks, facilitating interaction with various ham radio operations. Its open-source nature allows for community contributions and customization, enhancing its utility for diverse operating preferences. Originally started by Peter, **2E0SQL**, Cloudlog was designed to enable simple interaction with the Ham Radio Deluxe logbook using MySQL.

A spiral antenna experiment for RTL SDR usage.

Software for analysis of guyed and self-supporting towers & poles

A magnetic loops for HF pedestrian mobile project by VK3YE

Heathkit Icom Kenwood Power Transistors Ten Tec Yaesu spare Hamradio parts.

5000+ member discussion group for the low-cost series of SoftRock SDR receiver and transceiver kits.

Home Page of Ivan, 9H1PI, QRV from the island of Malta on 50 MHz.

A very portable Umbrella Dish for the A0-40 Satellite operation, by G6LVB

Pics and specifications

Specifiation at rigreference.com about Yaesu VX-8R/E

Sleeve baluns are normally used at VHF and higher. As a general rule, they are not practical at HF. The balun can be inverted and used as a skirt to form part of the antenna element

The ZS6BKW multi-band antenna, an optimized variant of the classic G5RV, is presented with detailed construction and tuning instructions. This resource outlines the antenna's design principles, which were developed by _Brian Austin (G0GSF)_ using computer programs and Smith charts to achieve optimal dimensions. It provides specific guidance on calculating and adjusting the lengths of the radiators (L1) and the matching ladder line (L2), emphasizing the critical role of velocity factor (VF) in achieving resonance. The article includes a step-by-step procedure for empirically determining the VF of ladder line using an antenna analyzer, ensuring accurate physical lengths for the matching section. It details the tuning process for the radiators, offering practical tips for incremental adjustments to achieve the best SWR curve. The resource presents SWR measurement results obtained with an _AIM-4170C_ analyzer across multiple bands, alongside predicted SWR graphs from an AutoEZ model. It confirms successful contacts on 80, 40, 20, and 17 meters, including a **17-meter DX contact** to Italy. EZNEC and AutoEZ models for the ZS6BKW antenna, covering 80 through 6 meters, are provided for download, allowing further analysis and customization. The document specifies component details, such as the use of Wireman 554 ladder line and #14 AWG THHN copper wire, and discusses the antenna's performance characteristics, noting high SWR on 15 and 30 meters but successful tuning on 6 and 80 meters with an external tuner.

A compact 2 element W8JK beam antenna for 20M to 10M bands by AF6SA

This is an internet resource for those interested in guitar amplifiers, vacuum tubes, and design tools such as SPICE modelling.

SSTV, pictures, home brew from sweden

A project for a 50 MHz moxon rectangle antenna

Why all the mystery surrounding baluns ? To use or not to use baluns

Extend the range of wireless network or connect to other wireless networks in neighborhood with your own wifi antenna.

A dipole antenna for 7 MHz support for this antenna is fiberglass military mast

Resources for amateur radio astronomers, teachers, and students.

Chart showing how SWR effects how much power you actually radiate from your antenna.

The Packet Radio beginners guide to packet radio operating by Buck Rogers K4ABT

A Compact and efficient multiband beam antenna based on a Modified W8JK Array by K5LJ

Cabrillo2Adif A software for converting the radio logs from Cabrillo to Adif log format (for Mac OS X)

Over 26 years of public service in Brandon FL

Flash crystals, Feakin' beacon keyer, beacon attenuator

A K9AY loop antenna project done with Far Circuits pc boards for the antenna switch and bandpass filter and preamp by K7SFN

Amatuer Radio QSL Cards. Full Color QSL and Eyeball Cards

Heathkit Manuals

Article on tubes and their usage in power amplifiers design. Explain failures of tube in RF power amplifiers, a common problem in the SB-220 SB-221, TL-922 and other amplifiers.

Software Defined Radio Projects, HF Receivers and Transceivers projects by YU1LM/QRP

In this PDF article Zack Lau describe how to homebrew a four element yagi beam antenna for 50 MHz band, including how to build mounting blocks and tubing clamps to hold elements.

Firsts pictures of Icom IC-9100 taken at Tokyo HamFair 2009

A comparison of multiband dipoles, including jumpered dipole versus fan dipole antennas, dipole fed by ladder line, resonant dipoles antennas. ARRL lab notes

This page contains a map of Amateur Radio Russian Prefixes.

The Western Washington DX Club is an organization of Amateur Radio (HAM) operators who have a special interest in DX or distance communications

Manufacturing distributor of infrastructure products for the telecommunications industry; antenna mounts, ice bridge, cable ladder, ground bars, weatherproofing, exothermic, safety equipment.

Tektronix Oscilloscpe home page, feature tekexpress DSA series products

Construction of attenuator, suitable for fox hunts at 144mhz

Your beginner's guide to shortwave radio, include an up to date blog and news about products and events.

Sams continues the tradition with the publication of new manuals every month, covering the latest in Televisions, including HDTV, Projections TVs, and coming soon, LCD monitors.

Fast growing friendly dx group.