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Get KB1OIQ - Andy's Ham Radio Linux CD at SourceForge.net. Fast, secure and free downloads from the largest Open Source applications and software directory

A free to download and print, log sheet in A4 paper format for amateur radio stations

PDF resources containing information on low cost ssb,am,cw circuits, which are useful for beginners.

A shortened multiband antenna, about 23m long, for 80m - 10m bands with a low SWR (<1.3) on 80m and 40m, and < 3 till 10m. Bandwith on 80m is 300kHz

Reports a 404 error, indicating the requested online receiver resource is unavailable. The page explains that QSL.net hosts over 30,000 websites, each maintained by different individuals, and suggests contacting the website owner directly or performing an internet search to locate the content. It clarifies that QSL.net cannot assist in finding specific missing pages or files. The page also notes that QSL.net provides email and web services free of charge to amateur radio operators and organizations. It encourages donations to support these services, providing a link to more information on how to contribute. The content emphasizes the need for user support to maintain the platform's operations.

An open source software decode various xMBE based modes. It support decoding QPSK, C4FM modes such as P25 Phase 2 (TDMA), MotoTRBO, NexEDGE, ProVoice and others more.

CWCom is a free morse code chat progam for Windows operating systems you can download free. Has been tested with windows 10. You can use CWCom to transmit and receive morse code and text messages over a LAN or even across the internet. CWCom can translate and decode morse code to text and encode text into morse code or flashing light, so you don't have to know morse code to use it.

46ft multi-band antenna for small gardens. Works well on 80m. An excellent DX performer and is an ideal replacement for your half size G5RV

Portable Vertical Antenna for 75m and 40m featuring Low radiation angle for DX, easy to install and to match 50 ohms

A coaxial cable tuneable magnetic loop antenna for 7MHz. This experimental antenna does not require a tuning capacitor

This is a resonant, half-wave, vertical antenna. It takes up little space in the back yard, was designed for operation on a single frequency 80 meter PSK net, and is reasonably inexpensive to construct by Chuck Hines, K6QKL

CQiNet is a family of programs that combine Ham Radio with the Internet using Voice over IP (VoIP) technology. Two programs are currently in the family, "theBridge" and echoLinux. Thebridge is a iLink/EchoLink compatable conference bridge that runs under various versions of Unix as well as Windows. EchoLinux is a EchoLink client program for the Linux operating system.

A free to download and print, paper log sheet for shortwave listerners in PDF format.

The K8ZT website provides a curated collection of amateur radio resources, encompassing software tools, informational articles, and external links relevant to various aspects of the hobby. It features utilities for _log analysis_, insights into QRP operations, and guidance on obtaining vanity callsigns. The site also includes sections dedicated to shack design principles and general ham radio information, reflecting a broad interest in practical station setup and operational enhancements. Specific software offerings are presented alongside discussions on their application, such as tools for analyzing contest logs to identify operational efficiencies or areas for improvement. The content often integrates personal experience with technical explanations, providing a practical perspective on topics like antenna selection for low-power operations or optimizing station workflow. The resource distinguishes itself by combining software recommendations with contextual information, aiding operators in making informed decisions about their station's technical and operational aspects.

Echo Link client for Linux and general purpose voice services system for ham radio use. The svxlink server consists of a core that handles the connection to the tranceiver. The core can be configured to act as a repeater controller or to operate on a simplex channel

6m to 40m EndFed Half Wave Antenna project produces an inexpensive, multiband, end fed HF antenna matchbox that is quick and easy to setup and use.

7 dB for 7 Bucks, a 2 meter beam antenna for the cost of a fast food meal!

ARRL pdf file on how remove car noise from your radio. Modern vehicles are RF noisy environments. Come learn how to identify and silence yor mobile noise sources, by WA6PDP

An easy to build antenna for ground reception of NOAA weather or amateur satellite signals. Double cross antenna by Gerald Martes

Amateur Radio software for transmission/reception of JT65 protocol. Brought to you by hb9hqx

A base station antenna you can easily build for 146,220 or 440 MHz, with performance similar to a J-pole but smaller and less obstrusive

Excel spreadsheet to input your old manual logbook data and have it converted to the ADIF format

A freeware windows based Morse Code program written in Visual Basic 6 with source code freely available! The program uses DirectX DirectSound for some features. You may download the source code and/or the executable at the bottom of the page.

Free Donwload of the PDF file of ITU and CQ zones of the world, made available by Icom America

Build your own home made Antenna Analyzer with an arduino micro, or a cheeper one with a pic processor

A reference matrix of Kenwood Microphones by models with connector specifications and transceiver compatibilty.

Tombone VHF antenna for 146 MHz ad designed by YB8EIP

A quarter wave vertical end-fed antenna for the 40 meters band. As all vertical antennas, also this aerial requires a good earthing system. In this project the ground is composed by twelve 4, wires buried in the lawn by using a spade to create a slit to drop the wire into.

WSJT-X and MAP65, open-source amateur radio programs, facilitate weak-signal digital communication. WSJT-X covers VHF/UHF to HF, decoding subthreshold signals. MAP65 optimizes for VHF/UHF EME with JT65. Free and GNU GPL licensed, WSJT-X is on Windows, Linux, and OS X, while MAP65 is Windows-only, supporting SDR hardware.

A 40 80 dipole antenna design by WA6ESC PDF File

J-Pole Antenna by K4TAX

30/17/12 and 20/15/10-Meter Tribanders and a 40 meters inverted V wire yagi antenna

Put up the longest dipole you can fit, feed it with open wire line, connect it to the balanced output of your tuner and poof! Instant multiband antenna. Is life really that simple?

Document explaning the differences between Iambic mode A and B

The Bundesnetzagentur's online tool provides a direct interface for searching **German amateur radio callsigns**, enabling users to retrieve specific details associated with licensed operators. The system utilizes a web-based form where users input a callsign to query the official German amateur radio database. This resource is built on Microsoft Visual Studio .NET 7.1 with Visual Basic .NET 7.1, indicating a mature and stable backend for data retrieval. This callsign lookup service facilitates rapid verification of German stations, which is particularly useful for **DXers** confirming contacts or for contesters needing to cross-reference logs. Unlike broader international callbooks, its focused scope on German licensees ensures high accuracy and direct access to official data. The tool's simplicity and direct functionality make it an efficient utility for any amateur radio operator interacting with German stations.

Pre amplifier using a 2N5109 for the 160 meters band

Build a spiderbeam from scratch for 20-17-15-12-10 meters band

K6ZB Bruce presentation of technologies to allow ham radio operate via internet

Win-EQF provides a comprehensive logging solution for amateur radio operators, integrating station control and DX resource management within a single application. It supports various operating modes and offers features for efficient logbook management, essential for contesters and DXers alike. The software is designed to streamline the process of recording contacts and managing station operations, which is crucial for achieving awards like **DXCC** or **WAZ**. Operators can utilize Win-EQF to maintain detailed records of their QSOs, track award progress, and interface with other station hardware. Its robust logging capabilities ensure accurate data capture for every contact, from basic information to specific contest exchanges. The program also facilitates the use of external DX resources, helping operators identify and pursue rare DX entities. This tool is particularly useful for those seeking to optimize their station workflow and enhance their overall operating experience.

Open source libraries and utilities to support using digital signatures for Amateur radio QSL system information like eqsl and lotw. Available for windows macos e linux.

Freeware antenna analyzer for linux

How to build a beacon keyer for 28 MHz using an old CB Radio transceiver, by Tom Sevart

This note describes a relatively small, but efficient, loop antenna initially created for portable operation. With suitable modifications, it can be adapted for fixed station use. In this age of CC&Rs, an antenna similar to this may very well be the answer to your problems. Have a look, be inspired, get out the torch / soldering iron and create your own version!

The design of Ruthroff broadband voltage transformers

Moxons work great, and they take up less space than full size two element Yagis

A popular 2 meter antenna returns in an improved, easier to reproduce form, 2008 QST article

This note looks at the antenna and antenna model for the 40 meter Moxon Yagi designed by Dave Leeson, W6NL. The performance of the antenna, through the model, will be explored in several typical settings.

Functional, easy, and cheap, all good Ham Radio characteristics by Terry Fletcher, WA0ITP

More links to Icom IC-746 resources on the web

CW paddle made with a steak knife some simple hardware and a stainless steel fork