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Mobile Communication: From 1G to 4G
Mobile communications technology has come a long way since the initial analogue phones. Read this article to understand the evolution from 1G to 4G...
Designing Wireless Gas Detection and Monitoring Systems
Gas detector systems are mainly used for sensing the presence of gas leaks and then taking an action, such as automatically shutting down the...
Optronic Sensors: Applications in Detonics (Part 6 of 6)
Read Part 5
Beginning with a brief introduction to various techniques and related sensors, this concluding part of the article focuses on optronic triangulation and...
Digital Radio Mondiale and How to Receive it
Digital Radio Mondiale technology uses digital signals to transmit in long-wave (190kHz - 250kHz), medium-wave (550kHz - 1600kHz) and short-wave frequencies (below 30MHz)
Digital Radio...
How to Assess Electromagnetic Radiation from Mobile Phone Towers
Electromagnetic radiation from mobile phone towers is a subject of utmost importance and requires a deep understanding of assessment methods of electromagnetic radiation from...
What is a Community Radio Station & What are the Prerequisites for Owning One?
Community radio station (CRS) or community radio (CR) is another type of radio broadcasting service. There are several subtypes of radio broadcasting: commercial, noncommercial...
Designing Wireless Gas Detection and Monitoring Systems
Prof Dr Dogan Ibrahim of the Near East University in Cyprus describes the basic principles of gas sensors and shows how a wireless gas...
Multiple Appliances Keypad Control
This multiple appliance keypad control circuit employs DTMF technique to switch on/off up to ten appliances. It can be modified to operate up to...
Intruder Radio Alert System
Consider a situation where a burglar has entered your house and snapped the telephone wires, leaving you with no means of communication with the...
Phone Broadcaster
Here is a simple yet very useful phone broadcaster circuit which can be used to eavesdrop on a telephone conversation. The circuit can also...
