Ericsson 1/KRB 101 1108, Инструкции по установке, эксплуатации и обслуживанию

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© 2001 – Ericsson Amplifier Technologies Inc.
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Table 1. Performance Characteristics
MCPA Power Amplifier
PERFORMANCE CHARACTERISTICS
Parameter Specification
Frequency 869 - 894 MHz
RF Output Power 120 Watts Average
Intermodulation Distortion -3 dBc minimum
when measured with 50 random phase sets.
Gain
69.5
±
0.25 dB
Modulation Format Any
Input Return Loss 14 dBr Minimum
Load Stability VSWR unconditional, all phases
Current Consumption 50 amperes nominal @ 27 VDC
DC Input Fully operational from 26 to 28 VDC
Operating Temperature
5
°
to 40
°
C
Operating Humidity 20% to 80% RH, non-condensing
Storage Humidity 20% to 95% RH, non-condensing
Dimensions 17.88” H x 5.12” D x 16.5” D
45.4 cm H x 13 cm W x 41.9 cm D
(Optional Configuration Available)
RF, DC, and I/O interface (Blind mate): 24W7 Sub-miniature connector, OSP
LED Status Monitoring Loop Alarm, VSWR Alarm, Temperature
Alarm, Power Supply Alarm, Fan Alarm,
Over Power Alarm, and DC On
1.5 Mechanical Description
The MCPA is contained in a chassis that can be mounted in a subrack enclosure. A
central heatsink is permanently mounted as part of the assembly (casting/housing).
Cooling is provided by 2 integral rear mounted fans that are easily replaced without the
need for chassis disassembly, or removal of power to the amplifier. Airflow through the
MCPA is from front through the rear of the unit.