Military wireless intercept organization is a massive, complex system. The Allies simply did a better job of getting all the parts to work together. Read more
Category: Shortwave Radio
WW2 Solar Cycle 17 – HF Propagation
Signals corps and radio engineers learned a lot about radio propagation during WW2 solar cycle 17 – much of it the hard way. Read more
WW2 Signals Spectrum – A Quick Survey
You would have enjoyed being a shortwave listener during the war. WW2 signals spectrum was absolutely hopping over its full range. Read more
World War 2 Wireless Intercept – Reading the Mail
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
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