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Making a CW QSO by John Shannon, K3WWP

Electronics surplus outlet in Redondo Beach, CA

Displays a placeholder page indicating the upcoming launch of a personal website for F5MSU Bruno. The content briefly notes the operator's interests, including amateur radio, genealogy, and motorcycling. While the site is not yet active, it provides contact information for inquiries regarding the future content. The page is presented in French, catering to a European audience interested in personal profiles of ham radio operators and their diverse hobbies. The resource is categorized under Ham Radio/Personal Pages/Europe, suggesting an intent to share DXing, contesting, and general operator profiles.

Article on propagation basics. The ground wave used for radio communications signal propagation on the long, and medium wave bands for local radio communications

The Homebase-10 is a wire halo antenna for 10m built with DIY store parts, effective despite its small size. Includes a dual-band version for 10m and 6m with gain around 0 to -2dBd, near omnidirectional pattern, and horizontal polarization. Overview based on a 2008 Practical Wireless article.

Ham radio blog in English and Dutch. The radio adventures of PE4BAS.

PilotMORSE is a great home solution for private pilots or aspiring professionals who want to hone their Morse code skills used to identify VORTACs, localizers, and marker beacons. PilotMORSE takes you through the alphabet with an advanced neural network algorithm that adjusts the pace of presentation based on your responses.

An Google Maps interactive layer showing Australian amateur radio repeaters. You can navigate and zoom as required and click on a repeater-site icon to display frequency, ctcss and other details and notes for that repeater.

A simplified explanation of decoding West German numbers messages transmissions without a computer.

IC706_BKT CAT is used to control the transceiver Icom IC-706, IC-706MKII IC-706MKII/G and IC-718 from the personal computer. Works on Windows and is available in free and free donation version

Kazmo’s Kustom Kreations a cool accessory - aka Outboard Heat Management Project by w4kaz

Multi-Polarized antennas for Land Mobile Radio, Indoor & Outdoor Networks, Home Wireless, Mining Communications, Remote Monitoring, HAM & Scanner, Cellular, WiFi, Wimax, M2M, GPS, LTE, and GSM.

The low band, VHF, UHF and microwave chats

RadioMasterList, a comprehensive receiver and transceiver directory. Performances and specifications for every radio set

Ham Blog dedicated to dxing and IOTA

A complete guide to start operating EME. In this document, that is the result of several years of experimenting, the author summarize the steps to begin on Earth-Moon-Earth communications

The **LDG Z100 Autotuner** review by GW6ITJ details the unit's practical application and performance in a ham shack environment. Initially acquired to replace an MFJ-902, the Z100 is noted for its ease of use, though the author observes it doesn't quite match the impedance range of the older MFJ unit. This hands-on assessment provides a real-world perspective on its capabilities for 100-watt operation across the HF bands. GW6ITJ specifically mentions the Z100's suitability for 3.5 MHz and higher frequencies, indicating its utility for common HF operations. The review focuses on user experience rather than technical specifications, directing readers to the LDG website for detailed data and manuals. This approach highlights the tuner's operational characteristics from a user's perspective. The author's experience with the Z100 suggests it's a reliable choice for general amateur radio use, particularly for those seeking a straightforward autotuner. The comparison to the MFJ-902 offers a valuable benchmark for hams considering a similar upgrade or new acquisition, emphasizing practical differences in impedance matching.

The _Touch CPO_ circuit offers a unique method for Morse Code practice, eliminating the need for a physical key. It leverages the versatile IC555 timer, configured as an astable multivibrator, to generate an audio tone. Users can adjust the tone's frequency by manipulating a 100 K variable resistor connected between pins 7 and 6 of the IC555, providing flexibility in the practice experience. Volume control is achieved via a 10 K variable resistor, while a 1 K Ohms preset at pin 4 of the IC555 allows for fine-tuning the touch plate's sensitivity. The design connects the touch plate to the base of a BC147B transistor, a configuration noted for its flexibility regarding the length of wire between the transistor and the touch plate. The author's prototype successfully used a 9 cm wire with a 3 x 6 cm aluminum plate. This project also suggests an alternative application as a touch-operated doorbell, demonstrating the circuit's adaptability. The design emphasizes simplicity and ease of construction, making it accessible for hams interested in DIY electronics.

These antennas are larger versions of the small loop antennas that were part of the cardboard back panel of older AC/DC five tube AM radios. Loop antennas of this type were popular in the very early days of radio. They are still useful today for long distance reception of AM radio stations

The IC703 features a built-in DSP filter and auto ATU as well as speech processing an a CW keyer with 3 message memories. It is an ideal all-in-one ham station for QRPers.

VHF Yagi antennas with low Q, extending the boom.

The simple and convenient way to a custom front panel - even for single units. Custom-designed front panels and enclosures for electronic equipment.

A blog mainly about my favourite hobby-amateur radio, shortwave listening and radio in its many forms.

NCC was formed in 1989 to further the efforts of contesters interested in the CQWW and ARRL DX contests. The member area of the club is a 175 mile circle that includes major parts of Ohio and Pennsylvania.

GoGreenSolar provides comprehensive solutions for **DIY solar panel systems**, catering to both homeowners and professionals seeking energy independence or reduced utility costs. Their offerings include a variety of solar kits such as Grid-Tie, Off-Grid, and Battery Backup configurations, designed to integrate seamlessly with existing utility infrastructure or provide complete autonomy in remote locations. Customers can select from Microinverter or String Inverter kits, along with essential components like **solar panels**, inverters, batteries, and racking systems, all curated from reputable brands known for efficiency and durability. The company emphasizes end-to-end support, from initial consultation and custom system design to providing easy-to-follow installation manuals. They offer financing options, including quick-approval loans with zero down payment, and a money-back guarantee if a solar permit is not approved. The platform also features a solar calculator and a questionnaire to help users determine the most suitable system for their specific energy requirements and property characteristics. GoGreenSolar aims to simplify the solar adoption process, enabling significant savings on energy bills and labor costs. Their approach focuses on empowering users to install their own systems with expert guidance, ensuring optimal performance and a secure energy future for homes and businesses.

ARROW Communications Association Serving radio amateurs in Washtenaw and Wayne Counties

A review about the Wouxun KG-UV8D two-way handheld VHF UHF radio transceiver

The W0IS resource outlines methods for finding historical US amateur radio call signs, particularly for genealogical research. It highlights the comprehensive collection of digitized call books from 1906-1996 available at leehite.org, stored as searchable PDF files. These resources significantly simplify what was previously a laborious manual search through physical call books, which were typically indexed by call sign rather than name. The guide details specific search techniques for various eras. For early radio days (1913-1923), government call books are readily available and searchable online via Google Books and hathitrust.org. For the period between the 1930s and 1980s, when private publishers like "Radio Amateur Call Book Magazine" dominated, the resource points to archive.org for scanned editions (1938, 1940, 1948, 1972) that support full-text OCR searches, despite potential scanning errors requiring flexible search terms. It also provides strategies for navigating Google Books' "snippet view" for the 1952 call book, including searching by name or address and interpreting often illegible snippets. The resource suggests cross-referencing findings with hamcall.net for call sign verification from 1921, 1954, 1960, 1969, and 1983 onwards. Additionally, it lists physical call book collections at institutions like the Pavek Museum of Broadcasting and individuals like W3HF, offering avenues for deeper research when digital methods fall short.

This guide focuses on soldering for the beginner and explains how you can solder a variety of components using a few different techniques - from the classy to the downright caveman.

Listen to Ingham County Michigan Public Safety, County Sheriff, Police and Fire

The Oldest Amateur Radio Club in Oklahoma

All the essentials about the Dip Meter or Grid Dip Oscillator used for many RF measurements including detecting resonance, locating RF emissions, and making many RF measurements.

Pirate radio stations broadcasting on shortwave radio. Chatrooms, pirate radio forums, shortwave pirate station loggings, information on pirate radio broadcasting, pirate FM broadcasting.

Living in a no antenna deed restricted community sounds bad for a HAM, but it means you just need to be more creative. I have found this will not stop your DXCC activities and many of my local HAM club members will agree

K2Net is a remote operation windows software for the Elecraft K2, and allow remote control over internet or wi-fi networks by G4ILO

This online calculator will give as output the Inductance L of a coil, including the total lenght of the wire needed to wound the coil. As input, requires the Diameter, number of turns, wire diameter and turn spacing

If you ever asked if you need an Unun or a Balun this article is for you. The right question should be do I need a feed line choke or an impedance transformer whose output is configured as balanced or as unbalanced. An impedance transformer can be configured as a voltage transformer or as a current transformer.

How to build a low-pass filter to remove alternator whine from your car

Windows shareware contest log program for the CQ 160 meters contest

An in-depth comparison here between the various digital technologies

An article by microHam about guidelined to eliminate problems caused by RFI

A club dedicated to Hellschreiber, or Hell, a unique, HF digital mode for sending and receiving text using facsimile technology

Martek Power designs and manufactures a wide of high performance power supplies for various industries. Power supplies AC-DC, DC-AC inverters, DC-DC, EMI Filters

A guide to setup and operate on JT-9 mode, including a sample QSO and setup hints by VA3PAW

Electronic keyer by pressure sensor. SEN-09673 is used for detecting touch.

One-Cubic-Inch Direct-Conversion Receiver

overview of radio signals and radiowave propagation and how different areas of the atmosphere affect radio communications.

Interesting article on how Marc Van Stralen, PA1HFO, took the Drake TR-7 Transceiver to the Next Level.

Descriptions, summaries,and tutorials about electronic circuits and electronic circuit design including amplifiers, attenuators, logic, transistor, operational amplifiers and much more