User's Manual

Weehawken Tunnel Remote Repeater
User/Maintenance Handbook
Handbook Nō.-Weehawken_River_P Issue No:-A
Date:-05/08/05
Page:-
26 of 36
5.8 800MHz 1Watt Low Power Amplifier (12-021901)
5.8.1 Description
The low power amplifier used is a triple stage solid-state low-noise amplifier. Class A circuitry
is used in the unit to ensure excellent linearity over a very wide dynamic range. The three active
devices are very moderately rated to provide a long trouble-free working life. There are no
adjustments on this amplifier, and in the unlikely event of failure then the entire amplifier
should be replaced.
5.8.2 Technical Specification
PARAMETER SPECIFICATION
Frequency range: 800-960MHz
Bandwidth: 20MHz (tuned to specificati
o
Maximum RF output: >1.0 Watt
Gain: 15dB
1dB compression point: +30.5dBm
3
rd
order intercept point: +43dBm
Noise Figure: <6dB
VSWR: better than 1.5:1
Connectors: SMA female
Supply: 500mA @ 10-15V DC
operational:
-10°C to +60°C
Temperature
range:
storage:
-20°C to +70°C
Weight: 0.5 kg
Size: 167x52x25mm
5.8.3 LPA 7-Way Connector Pin-outs
Connector Pin Signal
A1 (large pin) +24V DC
A2 (large pin) GND
1 Alarm relay common
2 TTL alarm/0V good
3 Alarm relay contact (bad)
4 Alarm relay contact (good)
5 O/C good/0V bad (TTL)