User's Manual

Bay Level Offset Calibration68P09258A31–A

Oct 2003

1X SCt 4812T BTS Optimization/ATP

3-91

Test Pattern Drop-down Pick List

The Tests > TX > TX Calibration... menu window has a Test Pattern

pull–down menu. This menu has the following choices:

S Pilot (default) – performs tests using a pilot signal only. This pattern

should be used when running in–service tests. It only requires a BBX

to do the test.

S Standard – performs the tests using pilot, synch, paging and six

traffic channels. This pattern should be used on all non–in–service

tests. Standard requires a BBX and an MCC. Standard uses gain

values specified by the IS97 standard.

S CDFPilot –performs the tests using the pilot signal, however, the gain

is specified in the CDF file. Advanced users may use CDFPilot to

generate a Pilot pattern using the value specified by the PilotGain

parameter in the CDF file instead of a pre–determined value.

S CDF – performs the tests using pilot, synch, paging and six traffic

channels, however, the gain for the channel elements is specified in

the CDF file. Advanced users may use CDF to generate a standard

pattern. Instead of using the values specified by IS97, the settings for

the following CDF parameters are used:

– PilotGain

– PchGain

– SchGain

– NomGain1Way

Set-up for TX Calibration

The workaround in Table 3-36 allows the user to manually set the BLO

limits to ensure that the redundant BBX BLO test does not fail due to the

preset offset being incorrectly set for the frame under test. A future LMF

release will correct this problem.

Table 3-36: Initial Set-up for TX Calibration

n Step Action

1 Delete the existing calibration file (if any) from the BTS folder on LMF

laptop from the location C:\wlmf\cdma\bts–#, where # is the BTS

number.

2 To edit the nominal TX BLO, from the Util menu, select Edit > TX

Nominal Offset. In the TX Cal Parameter window, make any necessary

changes to ensure the Tx BLO Nominal Offset (in dB) is correct:

– For 800 MHz, the value is 45.0 (dB), OR

– For 1900 MHz, the value is 43.0 (dB).

3 Download the data, which includes BLO values, to all the BBXs. From the

Device menu, select Download > Data