ČSN ETSI EN 303 348 V1.2.1   (870021) Budiče audiofrekvenčních indukčních smyček až do 45 A v kmitočtovém rozsahu 10 Hz až 9 kHz - Harmonizovaná norma pro přístup k rádiovému spektru

Anotace textu normy ČSN ETSI EN 303 348 V1.2.1   (870021)

The present document specifies technical characteristics and methods of measurements for audio frequency induction loop drivers operating from 10 Hz to 9 kHz used in Audio Frequency Induction Loop System (AFILS) with an upper limit of 45 Arms.

NOTE 1 - The object of an AFILS is to transmit an audio signal to people with hearing difficulties. The receiver in this case is normally a hearing aid or cochlear implant with a built in telecoil, both of which are covered by ETSI EN 300 422-4 [i.11].

These radio equipment types are capable of operating in the frequency band within the 10 Hz to 9 kHz range:

- with (an) output connection(s),

- for audio frequency baseband transmission (un-modulated and without the use of a carrier).

The present document covers induction loop drivers with output connectors. Integral antenna systems are covered by ETSI EN 300 422-4 [i.11].

NOTE 2 - The relationship between the present document and essential requirements of article 3.2 of Directive 2014/53/EU [i.1] is given in annex A.