Installation guide

Troubleshooting
Troubleshooting Adjustment Problems
1-87
Power Level Accuracy, Low Power
Calibration
• AT1 High-Power Mechanical Attenuator (Option UNB)
• A28 Reverse Power Protection (Option 501, 502, 503, 504
or Option UNJ)
• Loose or leaky RF cables.
Power Search Calibration • A13 Output
• A14 Extended Frequency Output (Option 506)
AM Gain Calibration • A13 Output
• A14 Extended Frequency Output (Option 506)
I/Q Gain/Offset/Quadrature Calibration • A10 I/Q Multiplexer
• A13 Output (Option 501, 502, 503, 504 or Option UNJ)
• A14 Extended Frequency Output (Option 506)
• A7 Baseband Generator (Option 001 or Option 002)
I/Q Impairment Calibration • A10 I/Q Multiplexer
• A13 Output
• A14 Extended Frequency Output (Option 506)
Table 1-39 Troubleshooting Adjustment Problems
Adjustment that is failing...
The following adjustments are listed in
the order that they should be performed
for proper calibration.
Assemblies most likely causing failure...