ANNEX 9: INDUCTIVE APPLICATIONS

Additional Information

Harmonised Standards
EN 303 447 sub-bands a0), a1) to a3), b) and c) EN 303 454 sub-bands a0), a1) to a3), b) and c) EN 300 330 all sub-bands except a0)

Technical parameters also referred to in the harmonised standard
Note 1: Sub-band a0): The antenna size is described by the distance between those two points on the antenna that have the largest distance between them (e.g. for a rectangle shaped antenna the largest diagonal; for a circular shaped antenna the diameter). Sub-bands a1) and a3): In case of loop antennas used within bands a1) and a3) integral or dedicated within an area between 0.05 m² and 0.16 m², the field strength is reduced by 10 x log (area/0.16 m²); for an antenna area less than 0.05 m² the field strength is reduced by 10 dB. Note 2: Sub-band a3): RFID operating in the frequency sub-band 119-135 kHz shall meet the spectrum mask given in EN 300 330. This will permit a simultaneous use of the various sub-bands within the range 90-148.5 kHz. Note 3: Sub-bands i) and j): Devices operating in the 13.56 MHz band shall meet the transmission mask and antenna requirements for all combined frequency segments, including the limits in the sub-bands k1) and k2), as described in harmonised standard EN 300 330. This will permit the simultaneous use of the sub-bands i) or j) together with the limits of the sub-bands k1) and k2).

Frequency issues
Users should be aware that emissions from inductive applications could cause interference to nearby receivers of other radio services. Particular attention should also be paid to the more stringent protection requirements identified by the ITU for global distress and safety communications frequencies in the same or adjacent bands. Sub-band a0): Some administrations do not regulate use below 9 kHz, but the provided limits allow usage on a non-interfering basis. See national implementation status (Appendix 1).