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Solar Power for Your Ham Station, It is Easier Than You Think QST article April 96 by KE0OG via Repeater-Builider.com

A project with schematic to build a receiver for 80 meters band by VK1PK

On-line resource that provides practical battery knowledge for engineers, educators, students and battery users alike. The papers address battery chemistries, best battery choices and ways to make your battery last longer.

A 109 pages presentation in PDF File by Jim Brown K9YC on techniques in operatint the top band from a small lot.

An end-fed-half-wave antenna matcher project based on a FT-82-43 core with a 100 pF and 45 pF capacitor in parallel

The idea makes use of a very simple direct conversion receiver on the band of interest.

Established around 1968, the Wichita Amateur Radio Society (W.A.R.S.) N5WF provides a central hub for amateur radio operators in the Wichita Falls, Texas area. The society actively supports local ham radio interests, fostering community engagement and technical development among its members. W.A.R.S. is known for its commitment to public service communications and promoting the amateur radio hobby through various activities and educational initiatives. The society's activities often include field operations, technical presentations, and participation in emergency communications drills, which align with its mission to support the amateur radio community. Members frequently engage in _DXing_ and _contesting_, sharing their experiences and knowledge to help others improve their operating skills. The club also maintains local repeaters, providing essential infrastructure for regional communications.

The mark 2 Crossfield Antenna was described in Sprat 76 by Alec, GD3HQR

Basic information about learning morse code

FTB2070 is a memory management program for the VX-120 and VX-170 FM handhelds

Collection of several Crystal Radio receiver circuits with schematics diagrams and pictures

iOS EchoLink client, this free app will allow licenced ham radio operators to use iPhone, iPad or iPod devices to connect to the echoLink system and connect to repeaters or other echolink users.

Open source project offers a solution to remote control of your Amateur radio station. Base for connecting other components and their remote control. The main advantage is low cost and adaptability

Provide new, used, and rare Gizmos

A sweep generator that produces a sawtooth waveform which sweeps the oscilloscope beam from left to right via its X input, and simultaneously the VCO frequency.

A collection of modifications and improvements to the Ameritron ALS-600 ham radio RF power amplifier

a forum for extra class operators to discuss cw, and extra class operation without the usual friction debates.

Ikeda Shimin (Citizen) Amateur radio Club is the club which consists of Ikeda(JAPAN) citizens.``Sorry...japanese language only.

Presents a construction project for a 1:1 current balun, specifically detailing the _Sorbie Balun and Bottle Choke_ design. The resource outlines the winding technique, employing 4+4 turns of mini coaxial cable on a large ferrite core, and provides insights into the physical assembly. It includes specific material recommendations, such as the type of ferrite and coaxial cable, crucial for achieving the desired impedance transformation and common-mode current suppression. The content covers the practical steps involved in building the balun, from preparing the coaxial cable to securing the windings on the ferrite toroid. It also discusses the integration of the balun into an antenna system, emphasizing its role in maintaining pattern integrity and reducing RF interference in the shack. The resource offers a clear, step-by-step approach, making the project accessible for homebrewers. Illustrations and photographs accompany the text, visually guiding the builder through each stage of construction. The article concludes with performance expectations and considerations for deployment, ensuring the constructed balun functions effectively across the intended frequency range.

The copper J-Pole antenna soldered in a couple of hours with an interesting method to setup the feeding point

This document is a must read for anyone considering building a good low cost HF multi-band antenna system. The author combine in this document four important ingredients to produce simple but effective antenna system, like antennas of non resonant length, line attenuation, the transmatch and the balun

This article describe the principles of baluns when referred to devices used to balance unbalanced systems, like a coax cable and a dipole antenna

About operating the AO-27 satellite

An amplifier made using an old HT-41 Hallicrafters Amplifier and adding the 160 meters band By W4NFR

Janielectronics RF microwave devices online store

Ham radio Blog, focusing on homebrewing and testing antennas, rig mods and contesting.

Forum thread about the Yaesu VX-170 at trainorders.com

Electronic distributor, specializing in capacitors

Free programming software for the Yaesu VX-6 and VX-6R.

Wondering whether to spend a fine day with the YL or with the antenna? This article may help you decide by W1GV

Ekins offers an fc preparatory training class for grol and for all commercial licenses, permits and endorsements, including gmdss, stcw and the 70-hour coast-guard approved course.

This resource details the construction of a Moxon rectangle antenna, a two-element wire beam, drawing inspiration from a _QST_ article by Allen Baker, KG4JJH, and a project group led by KD6WD. It outlines the use of _AC6LA_ software for critical measurements (A-E) to design the antenna for specific bands like 17 meters, emphasizing the simplicity of adjusting frequency and wire size. The guide covers material selection for spreaders, such as telescoping fiberglass fishing poles, and various hub constructions, including aluminum tubing and PVC joints, with accompanying images. The author shares practical insights from building multiple Moxons for 10, 15, 17, and 20 meters, noting consistent 1:1 SWR at design frequencies and broadbanded performance. It describes the feedpoint assembly using a 1:1 Yagi current balun and wire nuts for robust, adjustable connections. The resource also discusses element insulators made from Lucite strips and attachment methods to spreaders using plastic wire ties and duct tape, ensuring precise element spacing. Performance observations include significant signal improvements (4-5 S units) over quad loops and a unique "DX-Vane" effect where the suspended antenna self-aligns with the strongest DX signal. The author also recounts an unsuccessful attempt at a dual-band 17/20 meter Moxon, concluding that the Moxon is inherently a monoband antenna, supported by _EZNEC_ plots for a 17-meter design.

This transmitter was first constructed in 1987 and provided the author with his first real rig, capable of distances of more than about 100 metres.Use a 6GV8 tube.

Authoritative group for Kenwood TS-480 operators 1300 users and growing!

VK Contest Club (VK1CC) is a national organisation for all contest minded hams in Australia

PDF file of the Yaesu FT-991 manual

The HarRe antenna series, multi element quarter wave resonant broadcaters band receiving antenna

Instructions on how programming a regency scanner model R1060

Meetings Schedule, study groups, circulars from the radio communication division at ITU

A full superhetrodyne SSB fox hunting receiver kit

Wiring a Balanced Microphone to the TS-590S Unbalanced Microphone Input

PL-259, Motorola & N connectors, Coax Seal, universal adapter kit, TNC, Mini-UHF, SMA, F & BNC connectors, audio connectors,antenna mounts and antennas

This kind of antenna has grown in popularity over the last years because it gives you a decent performance and triband capabilities. But its 50 MHz design is far from optimal. Here you can learn how to improve its 50 MHz performance in a very easy way.

This site is dedicated to those who enjoy building radios and other electronic devices using parts and techniques from bygone eras.

Personal Blog devoted to ham radio topics, amateur radio issues, social impact of ham radio and opinion.

About DRM, the DRM standard, emission types, upfrading your old HF RX to DRM

This video will provide a foundation for understanding how power amplifier circuits work. If you are new to High Frequency Power Amplifier Circuit Design, this is the place to start.

A few pictures of an homebrew magnetic loop RTX antenna project, working from 30 to 12 meters with excellent results

Home Brew a 4-1000A RF power amplifier project by W4NFR

The 80 metre fox-or/test transmitter is a small low power transmitter which is designed to be used as an alignment aid for running up 80 metre foxhunt or ARDF receivers. It is also usable as a micro transmitter for fox-or-ing events.