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512 links - and 2 categories

A very efficient half size 40 meter Vertical Antenna - A vertical antenna project for the 7MHz made with some spare parts. Based on a broken 20 foot fishing pole, it is based on a good ground system made with radials and a capacitive hat done to increase the global radiation resistance of the antenna. A custom loading coil is also included in this project to perfectly tune the antenna to the CW portion of the 40 meters band.
[ Hits: 736 | Votes: 4 | Rating: 8.5 ]

Top Loaded Vertical Antenna for 80 Meters Band - Top Loaded Vertical Antenna 3,5 MHz 80m and a 14 MHz Trap for the 20m band. The weight of this portable vertical antenna is less than 1 kg, including the ground network. The weight of the telescopic fiberglass fishing rod is another 1kg. The rod expands from 1.5 meters to 8 meters.
[ Hits: 268 | Votes: 0 | Rating: 0 ]

Advanced Antenna Modeling Book by ON5AU - A new book about modeling antennas with EZNEC and in particular in conjunction with the AutoEZ application for a total of 584 pages. The book include more than 3000 accompanied downloadable EZNEC model files
[ Hits: 451 | Votes: 9 | Rating: 6.23 ]

Multi-band End-Fed Antenna - An excellent guide to homebrewing multi band end-fed antennas. The article, embed several drawings including diagrams and detailed pictures, illustrating the basic funcionality of end-fed antennas. The author gives some basic hints on how to build a half size antenna for 80 40 to 10 meters and a 6 meter to 40 meter configuration. It is also well described how to build the impedance transformer and the loading coils for lower bands.
[ Hits: 1105 | Votes: 6 | Rating: 4.5 ]

WW Locator Map of Italy - Amateur radio map of Italy with WW locators, provinces abbreviations and Call sign Prefixes, in a A3 size PDF file free to download, made available by IU3KJL Davide
[ Hits: 381 | Votes: 4 | Rating: 7.75 ]

Seiuchy On-line morse code trainer - Seiuchy is a web based morse code trainer that can be used even offline once the page is loaded. Trainer can be configured to send call signs only or just part of a standard QSO, and a full QSO too. Answers are then compared and displayed and a score get calculated.
[ Hits: 244 | Votes: 2 | Rating: 9.5 ]

The VHF/UHF DX Book - Free to download PDF book about operating The VHF/UHF bands written in the early to mid-1990s by a team of experienced VHF/UHF DXers and equipment developers, in an effort to pass on their knowledge and stimulate further developments.
[ Hits: 229 | Votes: 1 | Rating: 10 ]

IC-705 English Brochure - Download the official IC-705 RF direct sampling VHF, UHF, HF, D-Star all mode 10W QRP portable transceiver. Pre-release information in a PDF file all in English.
[ Hits: 721 | Votes: 5 | Rating: 6.2 ]

Yaesu FTDX101 - Official Yaesu.com - The Official page of the FTDX101 on the Yaesu.com website, includes full description, PDF brochures, official english manuals, complete accessories list and direct link to Yaesu software download for this radio
[ Hits: 198 | Votes: 2 | Rating: 5.5 ]

Amateur Radio Clip Art - Amateur Radio pictures to add Interest to your Website. Jpeg, GIF and Animated GIF files available to download.
[ Hits: 667 | Votes: 1 | Rating: 8 ]

BKLog - log book and contest program - BKLog is a free windows amateur log book program. Developed in VB.NET, BKLog support several integrations, and provides many features. It can be used as contest log program, allow automatic sending of CW, full transceiver control, DX Cluster access, upload to most popular online Log QSL and QRZ services, like qrz,lotw,clublog,hrdlog.
[ Hits: 483 | Votes: 4 | Rating: 6.25 ]

GridMapper WG7J - Upload an ADIF fiel and plot all worked grids in an online map. Support filtering by band, year and can export the output directly into a google map, or a google earth KML file
[ Hits: 363 | Votes: 6 | Rating: 6.83 ]
Google Earth Grid Square Locator - This page host a simple Windows program that will create an overlay for Google Earth that displays the Maidenhead grid. If you only need 4-character locator coverage, you can download an alternative ready-to-use kmz-file.
[ Hits: 825 | Votes: 6 | Rating: 4.17 ]

Distance Plotter - You can upload your adif-file It then checks the qso for specified band and if a maidenhead locator is specified. It then builds an array and plot a graph.
[ Hits: 241 | Votes: 0 | Rating: 0 ]

Morse Runner on MacOS - Run Morse Runner on Apple MacOSX computers using Wineskin. Morse Runner is a popular MS Windows morse code contest simulator. You can do this by yourself or just download the ready-made dmg and use it on your apple mac.
[ Hits: 208 | Votes: 1 | Rating: 9 ]
Morse Machine for MacOSX - This free program teaches you to receive Morse code. It starts with a few letters and adds more when it sees that you are ready. Based on A Fully Automatic Morse Code Teaching Machine, it is a small application and it runs even on recent MacOSX versions.
[ Hits: 252 | Votes: 0 | Rating: 0 ]
xCAT xDAX for macOSX and FlexRadio 6000 - xCAT is an helper application for the FlexRadio 6000 series running on macOS computers to control via CAT protocol tranceivers, while xDAX purpose is to provide a way for Digital Mode Software like Fldigi, WSJT-X to access the digital audio data (DAX) of the FlexRadioTM
[ Hits: 198 | Votes: 0 | Rating: 0 ]

Arduino ACCU Keyer - A simple accu keyer made with Arduino that works well with QRQ CW. Free to download arduino sketch and youtube video demonstration.
[ Hits: 236 | Votes: 0 | Rating: 0 ]

How to program Motorola APX P25 - How to program Motorola APX Series P25 Two-Way Radios for use with the OpenSPOT 2. This document covers some important steps to be followed to upload the correct codeplug to mMtorola P25 radios
[ Hits: 270 | Votes: 2 | Rating: 5.5 ]

Cost-effective ferrite chokes and baluns - In this article the author describes some new designs of ferrite loaded chokes for suppressing unwanted common mode currents at HF applied to feed lines like choke baluns, but also in the shack, applied to various coaxial, mains and data cables
[ Hits: 864 | Votes: 5 | Rating: 6 ]