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Articles on Telecommunications

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5G can also be deployed in ‘private’ networks, but it is still very expensive. Solutions for both private and public networks. Nosyrevy/Shutterstock

How to make 5G less expensive

The deployment of 5G networks depends on the compatibility of the instruments and protocols of a handful of industry players.
The FAA raised concerns that new, full-speed 5G cellphone services near airports could interfere with aircraft operations. Bernal Saborio/Flickr

How 5G puts airplanes at risk – an electrical engineer explains

Airplanes use radio waves to determine how far off the ground they are. New 5G cellphone services come close to the same frequencies the airplanes use. Here’s how that can be a problem.
Telecommunications companies around the world are expanding their next-generation, or 5G, networks. Guo Shining/VCG via Getty Images

What is 5G? An electrical engineer explains

5G is 10 times faster than 4G, promising better wireless internet access. It’s also expected to put the Internet of Things revolution in high gear.
Conflict arising from government’s ownership of Telkom and its regulatory role contributed to failure to achieve digital transformation. Shutterstock

South Africa has failed to harness the digital revolution: how it can fix the problem

South Africa has come short of its digital ambitions, but it can catch up by ensuring access to high speed broadband, and support for domestic digital firms and entrepreneurs.
The lawsuit filed by New York Attorney General Letitia James and 13 colleagues was the last roadblock to the merger. Drew Angerer/Getty Images

How the T-Mobile-Sprint merger will increase inequality

The T-Mobile-Sprint merger is the latest example of weakened enforcement of antitrust laws, which reduces competition and exacerbates already-record levels of inequality.
There’s still plenty of reason to know how to use this Morse telegraph key. Jason Salmon/Shutterstock.com

Simply elegant, Morse code marks 175 years and counting

Morse code works whether flashing a spotlight or blinking your eyes – or even tapping on a smartphone touchscreen.
Old technology, but not obsolete. suksawad/Shutterstock.com

Why do people still use fax machines?

It’s 2019. And yet faxing is still often more secure, easier to use and better suited to existing work habits than computer-based messaging.

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