User's Manual

Appendix A2 Major Electrical SpecificationsPlanning and
PreparationIntroduction
MCPS2135 System Operation 33
2001 Spectrian Corporation. All rights reserved.
Appendix A2 Major Electrical
Specifications
Major Equipment Specifications for the MCPS2135 Amplifier System
Electrical Specifications Specification @ 25ºC
Frequency Range 869 - 894 MHz
Average Power¹ into 50 Ohms 135W (51.3 dBm) to 500W (57.0 dBm)
Intermodulation Distortion (IMD) -65 dBc with AMPS and/or TDMA IS-136, or IS-
97 CDMA dual mode input sources under nominal
conditions
CDMA Adjacent Channel Power
2
< -45 dBc, 750 KHz offset, 30 KHz res bandwidth
@ 881 MHz, 100W Output < -60 dBc, 1.98 MHz offset, 30 KHz res bandwidth
Receive Band Noise 60 dBc
Carrier Spacing (AMPS/TDMA) 60 KHz min., 25 MHz max.
Power Output Stability for Single Frequency ± 0.5 dB under nominal conditions
Operating Bandwidth up to 25 MHz
Gain Factory set, 30 to 60 dB, 85 dB with optional
preamp
Gain Flatness vs. Frequency ± 0.5 dB (over all temps)
Gain Variation over Temp @ Any Inband Frequency ± 1 dB
Forward Power Sample Port Coupling -50 dB typ.
Input/Output Port Return Loss -15 dB min.
Second/Third and Greater Harmonic Output -50 dBc / -70 dBc
DC Input Voltage Range 26 to 28VDC
DC Input Current @ 27VDC 135W single RF module – 55A
250W two RF modules – 110A
370W three RF modules –165A
500W four RF modules – 220A
1
Power levels at the output of the system combiner will vary depending on the configuration.
2
Measured at the RF module output connector and in accordance with IS-97.