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2.5.2 Distribution Line Amplifier Initial Operational Adjustments
2.5.2.1
Input AC Power
The Distribution Line Amplifier AC power supply automatically senses the input AC voltage.
The DLA input voltage range is 87-265 VAC. Refer to Table 1-2 Distribution Line Amplifier
Specifications.
2.5.2.2
Power Amplifier (PA) Channel (Channel 1)
The nominal output level of the PA channel, as set at the time of manufacturing, is set to +27
dBm (4 port) or +30 dBm (2 port). The output alarm level is set for a threshold of 10 dB below
the expected output level. The expected input is 0 dBm. The input signal level threshold is
set for 10 dB below the input level. If other levels are desired, the customer should contact
Andrew with additional information when ordering the equipment. Refer to Figure 2-7 PA
Module Outline, for PA adjustment points locations.
2.5.2.2.1
PA Equipment Setup
The equipment required to adjust the PA output level is:
•
Signal Generator
•
Power Meter or Spectrum Analyzer
•
Digital Volt Meter
•
small Blade Screwdriver
•
≥ 10 dB power attenuator
•
direction control signal
Refer to Table 4-2 Test Equipment for a listing of suggested equipment. Refer to Figure 2-6
PA Output Level Test Setup, for test equipment setup.
Direction Control = Forward
Signal
Generator
The signal generator should be set for an output frequency of 2416.64 MHz with an output
level of 0 dBm.
The power meter, if used, should be configured to measure signals from 0 dBm to +40 dBm.
This can be done by either using the appropriate power sensor head(s) or by using power
attenuators.
Document use is restricted to that described on cover
J2
Distribution Line
J4
Amplifier Assembly
Figure 2-6 PA Output Level Test Setup
INSTALLATION
Power Meter
or
J3
Spectrum
≥
Analyzer
10 dB
power
attenuator
2-9
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