5w dummy load

160 meter linear loaded Inverted L antenna - The total length of the inverted L is 240 feet, which is 7/16th of a wave length long. It has a 92 foot horizontal linear load section 1 foot above ground that terminates into a home-brewed parallel network tuner by KN4LF

An antenna for 7MHz local contacts - This article describes the design of an antenna for local contacts on 7MHz, including a simple and efficient matching system that presents a 50 ohm load to the transceiver.

Coil loaded dipole for 80 meters - Coil loading of an 80m Dipole for restricted space. Here's a method that may allow you to fit that 80m dipole into your suburban backyard by VK3JEG

Balun Construction - Construction and use of broadband transformers

QRP Antenna 80-40-20-15 End Fed Antenna - A long wire antenna that will load up on 80, 40, 20 & 15 meters without an antenna tuner and without balun coils

Antenna Measurement Theory - Introduction to Antenna Measurement by orbit /fr pdf file

Analysis Of Antenna Mast Strength and Bending Stress - Calculations for determining the wind loading stress on an antenna mast. Link to a spreadsheet for calculating the mast bending stress based on wind speed and antenna cross sectional area.

I2YSB - I2YSB MANAGER of 5U1A 5U2K 5U3T 5U4R 5U5A 5U6W 5U7B 5U7DW 5U7JK 5U7JW 5U7RW 5U8B 5U9C 5UØT 5WØSB 6OØCW 6OØN 9L1X J2ØMM J2ØRR FO/I2YSB HI9/IK2GNW TX4PG ZK1GNW ZK3SB

Famous Hams and ex-Hams - The information contained on this page has been collected from several different sources.

HxPI Radio - First Steps Radio - First steps in science and technology. First steps radio. Color graphics and simple explanations of basic concepts in radio. An introduction to radio communication as a technical hobby. Resources for teaching, training, learning, self-study. Modern morse code. Morse code in the 21st Century. Morse code as a technical hobby. Morse training and practice material. Exercise files to download.

D-Star Query - DStarQuery was written to provide a universal query mechanism for Icom D-STAR enabled radios with a low speed port.

Technical books online - Downloadable Amateur Radio Tube related technical books free of charge and ready to download.

Yaesu VX-2R Manual - Operating Manual for Yaesu VX-2R pdf file size is 1417 KB

Yaesu FTDX-5000MP QST Review - QST review of the Yaesu FTDX-5000 provided by IV3VNY

Yaesu VX-2R Quick Reference Card - A downloadable free quick reference card for the Yaesu VX-2R in powerpoint and PDF file ready to be printed.

Ridge Equipment - Sells a broad range of Electronic Test Equipment as well as a full line of Cables, Connectors, Loads and Accessories for commercial or amateur antenna installation and repair.

USAPhotoMaps - Free Windows APRS Client with capability of downloading free aerial photo and topo map data.

Master.dta Editor - Freeware windows program by WE3NEA that allow to view and edit the Master Callsign Database file used in many contesting programs, import and export callsigns, auto-download announced DX operations.

D-PRS Interface - D-PRS Interface is written to provide a universal interface between APRS clients and an Icom D-STAR enabled radio with a low speed port.

AADE Filter32 - ADE Filter Design and analysis is a free for download windows program to design filters

HxPI Morse Jabberwocky - A translation of Jabberwocky into Morse Code. The famous nonsense poem Jabberwocky by Lewis Carroll, from Alice Through the Looking Glass, has been translated into many languages. Here it is in Morse Code, as MP3 audio files that can be downloaded. The files are at different speeds (words per minute, wpm) to suit those at different stages of learning morse code.

SigJenny - SigJenny turns your PC into a flexible and powerful audio signal generator for free. It can create multiple waveforms, sweep, fire single or repeating tone bursts. You can save your sound as a wav file, display a frequency response, use SigJenny a bit like an oscilloscope, and do a very good impression of a police car!

30m QRSS Beacon Transmitter - This beacon puts out about 0.5W on 10.140MHz. It is intended to be used for Slow Morse (QRSS) operation.

Ohm's Law for Dummy Loads - If you need a dummy load and don't want to spend money for it, you should read this article

Two PIC-Based Keyers - By Andy Palm N1KSN