The idea discone antenna looks exactly like its namesake; a metal disk attached to a metal cone. Of course with the frequencies the RTL software-defined radio deals with, it’s rarely necessary ...

There was a time when it was easy to eavesdrop on police and other service radio networks. Police scanners fans can hear live police, fire, and ambulance calls. However, it isn’t as easy as it ...

It also has controls that allow you to use the radio: for example, you can select the channel, adjust the volume, switch between receiving and transmitting, and so on. The antenna, which extends the ...

Antennas are mechanical components which either transmit or receive radio frequency signals. For transmission, an oscillating RF electrical current is fed to the antenna's terminals, where the conduit ...

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Whether you need to scan family photos, piles of documents, or expense receipts, a scanner out there is built for the task. Here's how to shop for the right one, plus the top performers in our lab ...

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The City of London Police said an illegitimate telephone mast was used to send messages that bypass mobile phone networks’ systems used to block suspicious text messages. The incident is ...

Discover what an OBD2 scanner is and how to use it to diagnose and fix car problems before they escalate into major repairs.

Since 2004, I have worked on PCMag’s hardware team, covering at various times printers, scanners, projectors, storage, and monitors. I currently focus my testing efforts on 3D printers ...

Today's all-in-one printers suffice for the occasional scan, but photo buffs and family archivists alike turn to dedicated photo scanners to digitize their prints and film. Their high sensor ...

First of all, put the egg yolks into the basin, add the crushed garlic, mustard powder, salt and a little freshly milled black pepper. Mix all of these together well. Then, holding the groundnut ...