医疗器械EMC工科医频带

GB 4824-2019 ISM 医疗器械EMC工科医频带

GB 4824-2019 ISM 医疗器械EMC工科医频带

CISPR 11 © IEC:2009+A1:2010 ISM 频带

ISM frequencies

Table 1 – Frequencies in the radio-frequency (RF) range designatedby ITU for use as fundamental ISM frequencies

Centre frequency    MHz	Frequency  range    MHz	Maximum    radiation limit b	Number of appropriate footnote to the table  of    frequency  allocation of the  ITU Radio Regulationsa
6,780	6,765 – 6,795	Under  consideration	5.138
13,560	13,553 – 13,567	Unrestricted	5.150
27,120	26,957 – 27,283	Unrestricted	5.150
40,680	40,66 – 40,70	Unrestricted	5.150
433,920	433,05 – 434,79	Under consideration	5.138 in Region 1, except
			countries mentioned in 5.280
915,000	902 – 928	Unrestricted	5.150 in Region  2 only
2 450	2 400 – 2 500	Unrestricted	5.150
5 800	5 725 – 5 875	Unrestricted	5.150
24 125	24 000 – 24 250	Unrestricted	5.150
61 250	61 000 – 61 500	Under  consideration	5.138
122 500	122 000 – 123 000	Under  consideration	5.138
245 000	244 000 – 246 000	Under  consideration	5.138
a Resolution No. 63 of the  ITU Radio Regulations applies.    b The term “unrestricted” applies  to the fundamental and all other frequency components  falling within the designated band. Outside of ITU designated ISM bands, the limits for  the  disturbance  voltage  and  radiation disturbance in this standard apply.