Troubleshooting
Errors While Attempting Measurements
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•Code domain power test failed. Use the BTS Laptop Utility program to correct the problem and to return all configured BBAs back to active status. Press the Abort key to return to main menu.
If the Test System is unable to correlate the code domain power measurements, this error will result. Check the following items and
•Entry in the Channel Number field in the Base Station Configuration Menu
This could be a problem o
o . If you enter the wrong channel number, the Test Set will be tuned to an incorrect frequency. You may use the spectrum analyzer mode to verify the presence of a signal.
•Entry in the PN Offset field in the Base Station Configuration Menu
If you have entered an incorrect value for the PN offset, the Test Set will not be able to correlate CDMA measurements. You may use the PN Offset Search test from the Main Menu to find the valid PN offset value (see “PN Offset Search Test” on page 79).
•
Check the connection from the source of the
•Timebase reference clock connection
Check the connection from the source of the timebase reference signal (typically 19.6608 MHz) at the Base Station. You might have to set the TST CLK switch to ON to enable the reference signal. The timebase reference should be connected to the REF IN port on the Test Set (there are alternative connections; see Chapter 3, “Connections,” on page 45). If a valid clock signal is present during testing, the
•Transmitter turned on at time of testing
If you are using a PC connected to the MSC for Base Station control, the Test Set will turn on the transmitter when required for testing. You may verify that the
transmitter is on by checking the green ACT LEDs on the front of the ACU and
BCR modules. If you are using the PC, you will have to enable the transmitter manually when prompted by the Test Software.
Troubleshooting |
Chapter 6 | 125 |
