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Technology Topics

On this page you will find reprints of various technology topic articles which I have written over the years and published in various periodicals.


Software Defined Radio (SDR) (September 2018)
The column is an introduction, review and experience with software defined radio.

An SDR is a radio system where the traditional hardware components such as the demodulators, mixers, filters and amplifiers, just to name a few, are implemented in software running on a personal computer. The software is then interfaced with an external "RF front-end" which contains the antenna connection, band-pass filters and an analog-to-digital converter.

Click here to read the entire article.

Automatic Dependent Surveillance - Broadcast (ADS-B) technology (September 2019)
The column explores Automatic Dependent Surveillance - Broadcast (ADS-B) technology.

Automatic dependent surveillance - broadcast (ADS-B) is a technology in which an aircraft periodically broadcasts its position determined by using GPS navigation techniques thus enabling it to be tracked.

Click here to read the entire article. (coming soon)

Transmission Lines (May 2020)
The column explores various transmission lines and factors affecting performance.

Transmission lines, aka feed lines, come in many various forms such as open wire, parallel lines (ladder line), coaxial cable, waveguide or microstrip just to name a few. They all have one thing in common; to connect the receiver-transmitter to the antenna system.

Click here to read the entire article. (coming soon)


About the Author

Richard Lacroix has been a radio hobbyist since the mid 1970s and has been professionally employed in both the commercial and military communication fields since the mid 1980s.

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Information & Security Disclaimer

First published: September 08, 2018
Revised: July 18, 2020

(c) 2018-2020, Richard Lacroix. All rights reserved.

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