New Tektronix Logo

Tektronix, Inc. announced today that going forward they are using a newer, more modern logo. At first I thought “not another rebranding…,” but then I actually looked at the logos and the corresponding press-release. The logo looks a lot more modern and doesn’t really deviate from the original all too much. It’s easily recognizable to […]
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Realtime GPS Tracker w. SD Card Logger Part 2 | Google Maps Link

This article shows how to build a realtime text message GPS tracker with integrated SD card logger. It allows coarse realtime tracking and more precise post analysis through the logged data. Not too long ago I wrote an article featuring a Realtime GPS Tracker w. SD Card Logger. That project sends raw NMEA [1] sentences […]
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KF5OBS #54: 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://jaunty-electronics.com/blog/wp-content/uploads/2015/12/SQUAWK_7777_IDENT.zip
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