Technical Manual
Airbridge BTS3612A CDMA Base Station
System Principle
Appendix A Performance of Receiver and Transmitter
A-15
A.2.4 Limitations on Emissions
I. Conducted spurious emissions
The requirements on Conducted Spurious Emissions vary with frequency bands, as
shown in Table A-25 and Table A-26. Local radio requirements should also be
observed.
Table A-25
Conducted Spurious Emissions Performance (450MHz band and 800MHz band)
Offset from carrier central frequency Spurious
requirement
750 kHz~1.98 MHz
-45 dBc / 30 kHz
1.98 MHz~4.00 MHz
-60 dBc / 30 kHz; Pout
≥
33 dBm
-27 dBm / 30 kHz; 28 dBm
≤
Pout < 33 dBm
-55 dBc / 30 kHz; Pout < 28 dBm
> 4.00 MHz
(ITU Class A Requirement)
-13 dBm / 1 kHz;
-13 dBm / 10 kHz;
-13 dBm/100 kHz;
-13 dBm / 1 MHz;
9 kHz < f < 150 kHz
150 kHz < f < 30 MHz
30 MHz < f < 1 GHz
1 GHz < f < 5 GHz
> 4.00 MHz
(ITU Class B Requirement)
-36 dBm / 1 kHz;
-36 dBm / 10 kHz;
-36 dBm/100 kHz;
-30 dBm / 1 MHz;
9 kHz < f < 150 kHz
150 kHz < f < 30 MHz
30 MHz < f < 1 GHz
1 GHz < f < 12.5 GHz
Table A-26
Conducted Spurious Emissions Performance (1900MHz band)
Offset from carrier central frequency Spurious
requirement
885 kHz~1.25 MHz
-45 dBc / 30 kHz
1.25 MHz~1.98 MHz
-60 dBc / 30 kHz; Pout
≥
33 dBm
-27 dBm / 30 kHz; 28 dBm
≤
Pout < 33 dBm
-55 dBc / 30 kHz; Pout < 28 dBm
1.98 MHz~2.25 MHz
-55dBc/30kHz
,
Pout
ú
33dBm
-22dBm/30kHz
,
28dBm
≤
Pout < 33dBm
-50dBc/30kHz
,
Pout < 28dBm
2.25 MHz~4.00 MHz
-13dBm/1MHz
> 4.00 MHz
(ITU Class A Requirement)
-13 dBm / 1 kHz;
-13 dBm / 10 kHz;
-13 dBm/100 kHz;
-13 dBm / 1 MHz;
9 kHz < f < 150 kHz
150 kHz < f < 30 MHz
30 MHz < f < 1 GHz
1 GHz < f < 5 GHz
