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2.6
Measuring the RF Signal Strength
The Receiver's RF signal Strength can be monitored during operation
via a DC RF signal-strength monitor. Maintenance personnel can
perform a simple verification process.
To measure the RF signal strength:
Using a Digital Volt meter, measure the voltage at the connector
pin#4 (both Rackmount and Standalone).
2.7
Aligning the Fiber Optic Link
The final step in installing the 7226H Interfacility Link is
re-adjusting the Receiver Gain Control for unity gain.
To set the unity gain (standard version) 6
1. Connect the combiner to the input of the transmitter.
2. Set the Signal Generator 1 to -8 dBm on the Spectrum Analyzer
at 1500 MHz.
3. Repeat for the Signal Generator 2 at 1510 MHz.
4. Set up the system as shown in
5. Set the Transmitter Gain Control for 3
level of -50 dBc at the Receiver output.
6. Adjust the Receiver Gain Control for unity gain.
Figure 12 Fiber Optic Alignment Setup
6.
If you are unable to perform this procedure see
on page 27.
7226H Interfacility Link Installation and User's Guide
Foxcom proprietary information
Measuring the RF Signal Strength
Figure 12 Fiber Optic Alignment Setup
rd
order intermodulation
Chapter 4: Gain Control
,
page 15
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