Component level (mostly analog) electronics from microwave to AF. Jazz guitars and guitar amplifiers. Radio astronomy. I apply science and critical thinking in my daily life.
Amateur radio homepage by Lars Petersen of Holstebro, Denmark. The Useful Articles include some good rules for the QRPer and Main HF rig and antenna.
Lars Petersen OZ1BXM QRP Denmark
CW, QRP, and satellites. Satellite radios and PIC experiments like the one below. The K3 testboard for 16F873
Wilko J. Hollemans PA3BWK - "Practice SENDING very fast but ACCURATELY - this in itself will improve your ability to copy fast code. Also use a tape-recorder to tape your sending, and then try copying it a week or so later.
Ultimate Morse Code Web Site - PA3BWK
One final tip - throw the pencil away, copy in your head! Try to run at higher speed than you are used to do."
Morsum Magnificat Issue 15 Spring 1990
"When learning to copy higher speeds, practice writing down the character only after hearing the following character. Once this is practiced a bit, hold off writing down the character until hearing the second character afterwards"
Some of the projects here are Solar Power Circuits charge control, Amateur Radio Circuits, beacon keyer, antenna tuner. Micro Power FM Broadcasting Circuits, Pulse Width Modulator PWM Circuits, motor speed controls, Geiger Counter Circuits,...
"Only a few of the circuits here rely on microprocessors. Micros can greatly enhance the power of a small device, but the specialized development tools can put the project out of reach for many hobbyists and the development systems tend to go obsolete in a short time." - Forrest Cook
"I am not a professional electronics engineer, nor do I have an electronics degree. I make no claims for technical accuracy, good design, or necessarily even originality for the contents of these pages.