3 Radio
3.1 Introduction
Bluetooth devices operate in the globally available, unlicensed ISM band situated at 2.4 GHz. This band is reserved for general use by Industrial, Scientific, and Medical (ISM) applications, which obey a basic set of power and spectral emission and interference specifications such as defined by the ETSI ETS 300-328 in Europe or the FCC CFR47 Part 15 in the United States. Although globally available, the ISM band has restrictions in some geographical locations. The SIG is actively lobbying regulatory bodies to harmonise these regulations worldwide and to date has had success with Japan and Spain and positive reactions from France. The situation at the time of publication is described in Table 3–1 and France is due to ...
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