ANNEX 9: INDUCTIVE APPLICATIONS

Scope of annex
This annex covers frequency bands and regulatory as well as informative parameters recommended for inductive applications including for example car immobilisers, radio frequency identification (RFID) applications including for example automatic article identification, asset tracking, alarm systems, waste management, personal identification, access control, proximity sensors, anti-theft systems, location systems, data transfer to handheld devices (e.g. NFC) and wireless control systems, animal identification, cable detection, wireless voice links, automatic road tolling and anti-theft systems including RF anti-theft induction systems (e.g. EAS). It should be noted that other types of anti-theft systems can be operated in accordance with other relevant annexes.

Frequency Band Power / Magnetic Field Spectrum access and mitigation requirements Modulation / maximum occupied bandwidth ECC/ERC Deliverable Notes
a1 9kHz  -  90kHz
72 dBµA/m at 10m (note 1) No requirement Not specified In case of external antennas only loop coil antennas may be employed. Field strength level descending 3 dB/oct at 30 kHz
a2 90kHz  -  119kHz
42 dBµA/m at 10m No requirement Not specified In case of external antennas only loop coil antennas may be employed
a3 119kHz  -  135kHz
66 dBµA/m at 10m (note 1) No requirement Not specified In case of external antennas only loop coil antennas may be employed. Field strength level descending 3 dB/oct at 119 kHz
b 135kHz  -  140kHz
42 dBµA/m at 10m No requirement Not specified In case of external antennas only loop coil antennas may be employed
c 140kHz  -  148.5kHz
37.7 dBµA/m at 10m No requirement Not specified In case of external antennas only loop coil antennas may be employed
k1 148.5kHz  -  5000kHz
-15 dBµA/m at 10 m No requirement Not specified In case of external antennas only loop coil antennas may be employed. The maximum field strength is specified in a bandwidth of 10 kHz.The maximum allowed total field strength is -5 dBµA/m at 10 m for systems operating at bandwidths larger than 10 kHz whilst keeping the density limit (-15 dBµA/m in a bandwidth of 10 kHz)
d 400kHz  -  600kHz
-8 dBµA/m at 10 m No requirement Not specified For RFID only. In case of external antennas only loop coil antennas may be employed. The maximum field strength is specified in a bandwidth of 10 kHz. The maximum allowed total field strength is -5dBµA/m at 10 m for systems operating at bandwidths larger than 10 kHz measured at the centre frequency whilst keeping the density limit (-8dBµA/m in a bandwidth of 10 kHz.) These systems should operate with a minimum operating bandwidth of 30 kHz
e 3155kHz  -  3400kHz
13.5 dBµA/m at 10m No requirement Not specified In case of external antennas only loop coil antennas may be employed
k2 5000kHz  -  30MHz
-20 dBµA/m at 10 m No requirement Not specified In case of external antennas only loop coil antennas may be employed. The maximum field strength is specified in a bandwidth of 10 kHz. The maximum allowed total field strength is -5 dBµA/m at 10 m for systems operating at bandwidths larger than 10 kHz whilst keeping the density limit (-20 dBµA/m in a bandwidth of 10 kHz)
f 6765kHz  -  6795kHz
42 dBµA/m at 10m No requirement Not specified The frequency band is also identified in Annex 1
g 7400kHz  -  8800kHz
9 dBµA/m at 10m No requirement Not specified
h 10200kHz  -  11000kHz
9 dBµA/m at 10m No requirement Not specified
j1.1 11810kHz  -  12660kHz
-16 dBµA/m at 10m No requirement Not specified For RFID only, Only in connection with band j
j3.1 12660kHz  -  13110kHz
-5 dBµA/m at 10m No requirement Not specified For RFID only, Only in connection with band j2
j1.2 12660kHz  -  13110kHz
-10 dBµA/m at 10m No requirement Not specified For RFID only, Only in connection with band j
j3.2 13110kHz  -  13360kHz
-3.5 dBµA/m at 10m No requirement Not specified For RFID only, Only in connection with band j2
j1.3 13110kHz  -  13410kHz
-3.5 dBµA/m at 10m No requirement Not specified For RFID only, Only in connection with band j
j3.3 13360kHz  -  13460kHz
Linear transition from 27 to -3.5 dBµA/m at 10m No requirement Not specified For RFID only, Only in connection with band j2
j1.4 13410kHz  -  13553kHz
9 dBµA/m at 10m No requirement Not specified For RFID only, Only in connection with band j
j3.4 13460kHz  -  13553kHz
27 dBµA/m at 10m No requirement Not specified For RFID only, Only in connection with band j2
j2 13553kHz  -  13567kHz
60 dBµA/m at 10m No requirement Not specified For RFID and EAS only
j 13553kHz  -  13567kHz
42 dBµA/m at 10m No requirement Not specified
j3.5 13567kHz  -  13660kHz
27 dBµA/m at 10m No requirement Not specified For RFID only, Only in connection with band j2
j1.5 13567kHz  -  13710kHz
9 dBµA/m at 10m No requirement Not specified For RFID only, Only in connection with band j
j3.6 13660kHz  -  13760kHz
Linear transition from 27 to -3.5 dBµA/m at 10m No requirement Not specified For RFID only, Only in connection with band j2
j1.6 13710kHz  -  14010kHz
-3.5 dBµA/m at 10m No requirement Not specified For RFID only, Only in connection with band j
j3.7 13760kHz  -  14010kHz
-3.5 dBµA/m at 10m No requirement Not specified For RFID only, Only in connection with band j2
j3.8 14010kHz  -  14460kHz
-5 dBµA/m at 10m No requirement Not specified For RFID only, Only in connection with band j2
j1.7 14010kHz  -  14460kHz
-10 dBµA/m at 10m No requirement Not specified For RFID only, Only in connection with band j
j1.8 14460kHz  -  15310kHz
-16 dBµA/m at 10m No requirement Not specified For RFID only, Only in connection with band j
i 26957kHz  -  27283kHz
42 dBµA/m at 10m No requirement Not specified The frequency band is also identified in Annex 1

Note 1 The limit is reduced to 42 dBµA/m at 10 m according to Table 9bis.

Standard frequency and time signals to be protected

Stations Frequency Protected Bandwidth maximum Field Strength at 10m Location
MSF 60 kHz +/-250Hz 42 dBuA/m United Kingdom
RBU 66.6 kHz +/-750Hz 42 dBµA/m Russian Federation
HBG 75 kHz +/-250Hz 42 dBµA/m Switzerland
DCF77 77.5 kHz +/-250Hz 42 dBµA/m Germany
DCF49 129.1 kHz +/-500Hz 42 dBµA/m Germany

Additional Information

Harmonised Standards
EN 300 330 all sub-bands

Technical parameters also referred to in the harmonised standard
Sub-band a3): RFIDs 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. Sub-bands j), j2): RFIDs operating in the frequency band 13.56 MHz shall meet the spectrum masks given in the EN 300 330. This will permit the simultaneous use of the sub-band j) together with the limits the sub-bands j1.1) to j1.8), k1), k2). The same applies for the sub-band j2) in in conjunction with the limits in sub-bands j3.1) to j3.8).

Frequency issues
Users should be aware that emissions from inductive applications could cause interference to nearby receivers of other radio services. 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 * log (area/0.16 m2); for an antenna area less than 0.05 m2 the field strength is reduced by 10 dB. 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.