User Manual

P B L Tunnels Loc 2 Units 1 & 2 + 800MHz BDA
Maintenance Handbook
H/book Number:-60-056100HBKM
Issue No:-1
Date:-13/02/2003
Page:-78 of 78
5.3.4 5Watt Power Amplifier (12-000201)
5.3.4.1 Description
The power amplifier fitted to this unit is a multi-stage, solid state power amplifier. Class A
circuitry is employed throughout the device to ensure excellent linearity over a wide
dynamic frequency range. All the semi-conductor devices are very conservatively rated to
ensure low device junction temperatures and a long, trouble free working lifetime.
The power amplifier should require no maintenance over its operating life. Under no
circumstances should the cover be removed or the side adjustments disturbed unless it is
certain that the amplifier has failed; since it is critically aligned during manufacture and any
re-alignment will require extensive test equipment.
5.3.4.2 Technical Specification
PARAMETER SPECIFICATION
Frequency Range: 800 – 970MHz
Bandwidth: <200MHz
Gain: 34dB (typical)
Power Output: >5.0Watts
1dB Compression Point: +36dBm
OIP3: +47dBm
Input/Output Return Loss: >14dB
RF Connectors SMA female
Power Consumption: 1.5A @ 24V DC
Operation: -10°C to +55°C Temperature
Range
Storage: -40°C to +70°C
Size 250 x 125 x 38.6mm
Weight 400gms (approximately)