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All these plans use the DK7ZB match

Grig is a freeware simple Ham Radio control (CAT) program based on the Ham Radio Control Libraries (Hamlib). It is intended to be highly generic presenting the user to the same graphical user interface regardless of which radio is being controlled. Grig supports the most commonly used CAT commands that are implemented by Hamlib, and integrates well with other ham radio programs like Xlog and gMFSK. Grig has been developed on Linux, but has been ported on Mac and Windows OS.

The website https://www.qsl.net/dl5dbm showcases homebrew projects related to KW, 2-meter, 6-meter, antennas, amplifiers, preamps, power supplies, and more. It provides information and resources for radio amateurs interested in DIY projects and experimentation.

Over 200 Telnet DX cluster entries are meticulously cataloged, each providing the cluster's callsign, IP address or hostname, and the specific port for connection. The resource details the geographic location for each cluster, often including grid square information or city/country, which is crucial for operators seeking regional or local spotting networks. For instance, **AB5K** offers both worldwide and USA/Canada-only spot feeds, while **K2LS** explicitly limits spots to USA/Canada/Caribbean Zones 1-8, excluding chat messages. The compilation serves as a practical reference for amateur radio operators who utilize traditional Telnet clients for real-time DX spotting. It presents a raw, unadorned list, prioritizing direct access information over elaborate interfaces. This format allows for quick integration into logging software or terminal programs that support Telnet connections. Distinctively, the resource focuses exclusively on Telnet access, differentiating it from web-based or aggregated cluster services. The sheer volume of listed clusters, spanning continents from Europe and North America to Asia and Oceania, makes it a robust tool for DXers and contesters aiming to monitor propagation and identify rare DX stations across various bands.

J-Poles with Wireman-cables for the quarterwave matching section, working on VHF and HF bands

PDF files describing how to homebrew a 1:2.5 balun

A custom made 80 meter loop antenna. Reports on usage and tips to build the support.

A JavaScript to calculate the dimensions for a seven element Yagi-Uda Antenna

This antenna is based on a 10 Metre long fibreglass fishing pole

GCM is a freeware great circle map plotting software for windows, you can choose colours, scale, meridians, fields and or squares from the maidenhead locator system.

Vertical transportable HF antenna by CT1BYR

Use 4CX10000D / 8171, RF output power of 11 KW in key-down carrier on all bands. Power was measured with a Bird 4712 wattmeter and a 25 KW slug

The secret with this antenna is to install as many radials as you can around the base of the antenna, they can be anything from 1/8 wave or longer.

Instruction manuals for all Kenwood current radios.

Antennas, Keyer, amplifier, transverter, baluns

A collection of projects for Amateur Radio Homebrewing enthusiasts

The SK6AW DX-Cluster provided a web-based interface for real-time DX spotting, featuring a flexible and configurable environment for amateur radio operators. It supported various display _skins_, allowed users to send spots, and integrated _e-mail and push notifications_ for alerts. The platform was designed to offer a comprehensive spotting experience, enabling users to track propagation and DX activity across multiple bands, similar to traditional _telnet clusters_ but with a modern web interface. This service, formerly hosted on dedicated servers, transitioned to a shared hosting platform before its scheduled shutdown on December 13, 2025. The decision to discontinue the cluster was attributed to a lack of resources for updating it to contemporary standards. Users seeking similar functionality are directed to alternative DX spotting services such as _dxsummit.fi_ or _dxheat_, which continue to provide real-time DX information and related features for the amateur radio community.

GlobalTuners provides access to remotely controlled radio receivers over the internet. You can listen to ham radio, shortwave radio, air traffic control, airband, ACARS, airports and much more. Tune remotely controlled receivers from all over the world with your browser and listen live.

Over 16.7 million callsigns are indexed within the HamCall World-Wide Callsign Database, a long-standing resource for amateur radio operators. This online tool facilitates rapid lookups of callsign data, including operator details and QSL photos, which are crucial for confirming contacts and pursuing operating awards. The database integrates FCC updates as they are released, ensuring timely access to current licensing information. The platform also features a live **DX cluster** displaying recent spots across various bands, from 160m to 3cm, with specific spot counts for active bands like 15m (50 spots) and 10m (46 spots). Users can view **band activity** summaries, providing an immediate overview of propagation conditions and active frequencies. Additionally, the service provides access to a hamfest calendar and amateur radio news updates, making it a multi-faceted resource for daily operating and event planning. Since 1989, the HamCall DVD has supported this server, alongside HamCall.net Gold Memberships, demonstrating a sustained commitment to providing comprehensive callsign data.

Smart homebrew antenna-ELEVATOR system with linear actuator. The actuator is a cheap and heavy tool with high enough torque, ideal for elevation systems, but in practice it needs quite an effort in order to operate correctly in your homebrew antenna system. This page inform you of the actuator's secrets.

Towers, poles, antenna mounts, accessories and hardware, obstruction lighting, and installation services

2 elements short boom yagi for 80 meters

EH antenna for six meters band by IW0BZD

Pictures comments and detail on a 2 elements antenna for 2 meters band

A 20 ampere and more 13,8V power supply for RTX

This Vertical antenna design by David Reid for lower bands focuses on achieving effective DX communication by optimizing the antenna low-angle radiation for long-distance contacts. The design incorporates techniques like linear loading and capacity hats to reduce the antenna's height while maintaining performance, especially on 40m and 80m bands. Building a solid ground plane and using quality materials ensure efficiency and durability. Although vertical antennas can be complex to build, this project simplifies the process, making it accessible for ham operators seeking strong, reliable signals.

Roy G4WPW has collected one of the most complete and interesting pages for microphone connections schemas and wiring. Includes Kenwood microphones schematics as well as Yaesu Icom Alinco Adonis Drake Heil JRC MFJ schematics

Amateur Radio Control System for the Kenwood TS-2000 by WB5KIA

A well documented plan to build a magnetic loop antenna for Shortwave Listening, includes photos and diagrams.

Practical contruction and designing notes of a delta loop for the 40 meters band

This page details the construction of an easy-to-make collinear 360 degrees omni-directional, vertically polarised, antenna for 802.11b/g wireless networking.

Yagis for homemade with a new match-system, for 6m, 4m, 2m, 70cm and Shortwave

This page describes a homebrew QRP SSB transceiver built by WB9IPA.

The HB9CV-Beam is a 2-Element-Yagi with two driven elements and was introduced by Rudolf Baumgartner, HB9CV in the 1950ies. This beam antenna is a coax-feeded version of the ZL-Special construction by DK7ZB for 2m, 6m and 10m

by Greg Weinfurtner AEE BSS

Ten meters propagations beacons compiled by Bill Hays WJ5O

A large collection of maps of each dxcc country with general information, banknotes and coins, satellite images, flags and national information where available by SP6NVK

Project for a 12 volt, 30 ampere Power Supply Unit

The Shunt-fed Tower, an effective Low Band Antenna, uses your beam as a capacitive top-hat and only needs a simple feed network and a good ground system to work DX on 80M and 160M.

1000+ Antique radio pictures in alphabetical order.

Amateur radio clipart and animations.

Javascript for calculating the lengths of tubing to be used for the construction of a Super J-Pole in a collinear design

VHF magnetic loop atenna by ON1DHT

A gamma match example

A magnetic loop antenna for 144 mhz, two meter band

This resource, last modified in August 2000, provides a personal amateur radio web presence for N3LS Larry, focusing on homebrew project announcements and a curated list of amateur radio links. It mentions plans for 10 to 15 new homebrew projects, indicating a focus on DIY electronics construction. The page also offers guidance for aspiring amateur radio operators, including tips for obtaining study guides and links to testing practice sites, suggesting an educational component for newcomers to the hobby. The content primarily serves as a personal hub, with a strong emphasis on sharing homebrew endeavors and supporting new licensees. While specific project details are not present, the intent to add numerous homebrew projects highlights a practical application of electronics knowledge. The inclusion of study resources aims to assist individuals in preparing for amateur radio license examinations, making it relevant for those seeking to enter the hobby.

This is a low cost homebrew two band travel antenna for 20 and 40 meters. It is based on the B&W Travel Antenna concept with a telescoping whip and a loading coil

A Kenwood R-5000 communications receiver located in Salt Lake City that you can remotely control and receive S-Meter readings and audio from via a web browser.

A switchable antenna for 80/160 meters by IK1ZOY. A new version of a 1/4L 80 m. dipole modified for use in 160 m. band. using it's own coaxial cable feeder to wrap a coil.

New York / Long Island Scanner forums, chat, and live scanner feeds of Nassau County Fire Departments. Site registration is needed to listen to the live feeds