Radio waves are simply part of the electromagnetic spectrum and have different frequencies. Frequencies between about 3 kHz and 300GHz comprise the radio frequency (RF) band. RF has many applications, from telecommunication and commercial broadcasting to medical instrumentation.
For all these application to function successfully and safely side by side in Europe they follow the Radio & Telecommunications Terminal Equipment Directive (R&TTE).
The R&TTE Directive applies to all equipment that uses the RF spectrum and all terminal equipment attached to public telecommunication networks (PSTN).
Manufacturers of any product that uses RF, or interfaces with a PSTN, from mobile phone handsets to wireless modems to industrial control systems, need to be aware of the requirements of the R&TTE Directive. The relevant harmonised standards for the R&TTE Directive play a very important role in bringing a product to market by determining its compliance with the regulations.
There are an increasing number of products and systems being placed on the market that use remote or wireless communication technology, the number of manufacturers who need to ensure that their designs comply with the R&TTE Directive is increasing. More and more manufacturers who do not specialise in 'telecommunications' products, but who use components such as wireless modems and radio links in their systems need to be aware of the R&TTE Directive requirements.
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