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Performing Tests
PN Offset Search Test
Chapter 4
79
Performing Tests
PN Offset Search Test
This utility may be used when you are testing a BBA and are uncertain of the PN offset
value. In this utility, the Test Software tunes to the CDMA channel and searches to find
the valid PN offset. The resulting PN offset value is then entered into the PN Offset
field of the Test Configuration Menu screen.
Parameters and Specifications Used
The following specifications and parameters are used when running this test. See
Chapter 5, “Reference,” for descriptions of the specifications and parameters.
Parameters:
• None used for this test.
Specifications (Pass/Fail Limits):
• None used for this test.
Select and Run the Test
Perform the PN Offset Search operation as follows:
Step 1. From the Lucent CDMA Tests Main Menu screen, select the Calibration/Utilities
field. The Test Software will display the Calibration/Utilities Menu screen.
Step 2. Select the PN Offset Search field.
Step 3. Press the
k1 (Proceed) key to start the search.
Review the Results
NOTE This procedure might include steps that prompt you to disconnect cables from the site
antenna ports and make connections to the Test Set. Before removing or re-installing the
antenna cables, make certain that the transmitter has been turned off by the MSC (or by
switch personnel). Green ACT LEDs on the ADU and BCR modules indicate that the
transmitter is active, and should be off before you disconnect cables.
The setup diagram will prompt you to make connections between the Test Set and the
Base Station. Press the
k1 (Proceed) key when the connections have been made.
The Test Software will start searching for the BBAs PN offset. This is an iterative
process and it might take several minutes before returning the PN offset. Once the value
has been found, the Test Software will display it on the screen. The Test Software will
enter the PN offset returned by the search value into the PN Offset field on the Test
Configuration Menu screen.
Once the PN offset value appears, press the
k1 (Proceed) key and follow the displayed
instructions to return to the Calibration/Utilities Menu screen.