1、CEPT T/R*OL-O4*E 92 m 2326414 0012683 204 m 0 T?Rm-04E Page 1 Recommendation T/R 01-04 (Oslo 1991) USE OF LOW POWER DEVICES (LPD) USING INTEGRAL ANTENNAS AND OPERATING IN HARMONIZED FREQUENCY BANDS Recommendation proposed by the Working Group T/WG 18 ?Frequency Management? (FM) Text of the Recommend
2、ation adopted by the ?European Radiocommunications Committee? (ERC) : ?The European Conference of Postal and Telecommunications Administrations, considering a) that it is necessary to develop a clear and simple definition for LOW POWER DEVICES, b) that there is increasing interest in the use of LOW
3、POWER DEVICES in harmonized frequency bands for an c) that in general these applications do not require protection or detailed frequency planning, d) that applications requiring protection are covered by other CEPT Recommendations, e) that the technical characteristics for such equipment are covered
4、 by ETSI standards, f) that the maximum level of spurious emissions from such equipment is currently under study within CCIR and consequently CER will revisit this question at an appropriate point in the future, increasing number of applications, O noting that studies are in progress within CEPT, CC
5、IR and CISPR to establish appropriate limit values for spurious emission from radio communication and other equipment, recommends 1. to adopt for LOW POWER DEVICES the following definition: non-public radio devices with integral antenna which radiate in the frequency bands and up to a power level or
6、 produce the equivalent field strength as given in Table 1, working on a non-interference and non-protected basis and which do not require frequency planning, 2. that LPDs shall be type approved according to ETS Sol A and shall be marked ?CEPT-LPD? in accord with Recommendation T/R 71-03 E, 3. that
7、LPDs shall conform to power limits and operate in the frequency bands listed in Table 1, 4. that LPDs shall be exempted from licensing or shall be subject to a general licence depending on national 5. that the preliminary maximum level of spurious emission of the transmitters outside the assigned fr
8、equency bands 6. that all the CEPT regulatory Authorities shali permit the free circulation for use of radio equipment provided regulations, and the radiation levels of the receivers in all bands are as given in Table 2, that the equipment is type approved and bears a mark in accordance with recomme
9、nds 2.? Edition of January 20, 1992 CEPT T/R*OL-O4*E i2 232b414 0012b84 140 TIR 01-04 E Page 2 Table 1 (T/R 01-04 E) I Frequency bands LOW POWER DEVICES Power/Field strength limits ., 6.765-6.795 MHz 13.553-13.567 MHz 26.957-27.283 MHz 10 mW e.r.p. 40.660-40.700 MHz i0 mW e.r.p. 65 dBpV/m (30 m) 65
10、dBpV/m (30 m) 2,400-2,500 MHz 10 mW e.i.r.p. 5,725-5,875 MHz 25 mW e.i.r.p. 24.00-24.25 GHz 100 mW e.i.r.p. 61.00-61.50 GHz 100 mW e.i.r.e. I 122-123 GHz 100 mW e.i.r.D. I 244-246 GHz 100 mW e.i.r.D. Field strength limits are the maximum values within the assigned frequency band. Power limits are th
11、e total values within the assigned frequency band. Table 2 (T/R 01-04 E) Spurious emissions and radiations outside the operating frequency bands I Frequency bands Power/Field strength limits/ Measurement bandwith I 15-135 kHz 65 dBpV/m (30 m)/200 Hz I 135 Hz-30 MHz 34 dBpV/m (30 m)/9 kHz 4 nW operat
12、ing/l20 kHz 108 -118 MHz 2 nW standby /120 kHz 470 -862 MHz 2 nW receiver /i20 kHz 87.5-108 MHz 174 -230 MHz 250 nW operating/l20 kHz 2 nW standby /120 kHz 2 nW receiver /120 kHz Other frequencies below 1000 Hz 1 pW operating/l MHz Frequencies above lo00 MHz 20 nW standby /i MHz 20 nW receiver /i MHz Edition of January 20, 1992
