User Manual

Axell Wireless Limited
Technical Literature
L.A. M.T.A. Remote Sites
Document Number 80-301401HBKM Issue No. 1 Date 13/06/2008 Page 52 of 148
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9-Way Pin-Out Graphical Representation
3.5.5.6. Low Power Amplifier (12-021801)
The low power amplifier used is a 1 stage balanced configuration, solid-state 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.
Its housing is an aluminium case (Iridite NCP finish) with SMA connectors for the RF input/output and
a D-Type connector for the power supply and the Current Fault Alarm Function.
There are no adjustments on this amplifier, and in the unlikely event of failure then the entire amplifier
should be replaced.
12-021801 Specification
PARAMETER SPECIFICATION
Temperature
-20 to +70 qC
Frequency Range 380 - 500 MHz
Small Signal Gain 15.5 +/- 0.5 dB
Gain Flatness 0.7 dB p-p
'Gain vs. Temperature
0.7 dB
In RL 20 dB
Out RL 20 dB
Output Power @ 1dB Compression Point +30.5dBm
Output 3
rd
Order IP +41.5dBm
Noise Figure 6 dB
DC Supply Voltage 10-15 Vdc
DC Supply Current 540 mA Max
operational
-10qC to +60qC
Temperature
range
storage
-40qC to +100qC
Weight <0.5 kg
Size 110.5 x 66mm x 24.6mm
Low Power Amplifier (12-021801) 9-Way Connector Pin-outs
Connector pin Signal
1 +ve input (10-15V)
2 GND
3 Alarm relay O/P bad
4 Alarm relay common
5 Alarm relay good
6 No connection
7 TTL voltage set
8 TTL alarm/0V (good)
9 O/C good/0V bad