World War 2 Wireless Intercept is the story of the people and technologies that fought our first electronic war, and took signals intelligence to a whole new level. Read more
Category: Shortwave Radio
Understanding Extraordinary Wave Propagation
Once and for all, let’s understand extraordinary wave propagation on HF. Why does it happen and what does it mean to us? Read more
Our Magnetic Field Effects Skywaves
Recently, I wrote about how our magnetic field effects skywaves polarization, turning everything elliptical. Let’s dig deeper. Read more
HF Skywave Polarization – Not What You Think
All shortwave signals arriving at your receiver have elliptical polarization. HF skywave polarization is simply not what you think it is. Read more
SWBC Translation in 2022
My surprisingly successful project this year was automated SWBC translation. It is easy to set up and works fairly well. Read more
Two Channel Antenna Switch in 2022
My big build project during 2022 was a two channel antenna switch, to control my wideband loop array and switch between multiple diversity receivers. Read more
Diversity Reception in 2022
As we review Making It Up during the past year, let’s consider our use of modern diversity reception in 2022. Read more
Remembering the Radios of Buchenwald
One man’s ham radio ingenuity and desperation built the radios of Buchenwald and saved lives. Let’s look back. Read more
Wideband Loop Antenna Polarization
I am afraid today’s post will be disturbing to some readers. We are going to destroy several myths about loop antenna polarization. Read more
Yagi versus Loop Antenna Patterns
When you compare Yagi versus loop antenna patterns, you won’t find as much difference as you may have expected. Read more