Thermal design is one of those things engineers don’t really learn in school and hobbyists often don’t even think about. This article is going to show some basic math with a practical example. One of my portable police scanners has an external 6V jack. To use it in my car I used my standard linear […]
Continue reading…
Electronics
Generating PWM Signals
In this video I’m showing how to generate a PWM signal that’s behaving proportionally to analog control signal. P.S. Watch out for the Dinosaur!
Continue reading…
Hacking a Strobe Light Controller
Not too long ago I bought some white strobe lights with a strobe controller of Amazon. This exact controller is spread all over Amazon and eBay but only provides strobe patterns that I didn’t particularly like. So it’s time for a hack. The strobe lights I purchased were white in color but they have the […]
Continue reading…
Secondary Surveillance Radar | An Introduction
Quick introduction to Secondary Surveillance Radar and how it works. After explaining the absolute basics, I am showing how one can simulate transponder responses using off-the-shelf test equipment. RTL1090 is used to verify the generated signals as valid. If you want the arb waveform file for the 7777 Mode A response, here it is: https://baltic-lab.com/wp-content/uploads/2015/12/SQUAWK_7777_IDENT.zip
Continue reading…
What is a Gunnplexer? | Police Radar Gun
This video shows a couple of 10 GHz and 24 GHz gunnplexer, briefly explains what they do and shows how they can be used to determine an object’s speed.
Continue reading…