User Manual

In–Service Calibration – continued

Jan 2002

G-17

SC4812ET BTS Optimization/ATP — CDMA LMF

Table G-5: In–Service Calibration

Step Action

! CAUTION

Perform the In–service Calibration procedure on OOS devices only.

8 Select the desired test:

– Select the target BBX(s) on the C–CCP cage picture.

– Click Tests>[desired test] from the menu bar at the main window.

– Select the target carrier and confirm the channel number in the pop up window.

– Leave the Verify BLO check box checked.

– From the Test Pattern pick list, select a test pattern.

– Click the OK button to start calibration.

– Follow the on–screen instructions, except, do not connect to the BTS antenna port, connect to the

directional coupler (fwd) port associated with the on screen prompt antenna port.

NOTE

 Selecting Pilot (default) performs tests using a pilot signal only.

 Selecting Standard performs tests using pilot, synch, paging and six traffic channels. This requires

an MCC to be selected.

 Selecting CDFPilot performs tests using the CDF value for pilot gain and IS–97 gain values for all

the other channels included in the Standard pattern setting (paging, synch, and six traffic). Using

this pattern setting requires the selection of both a BBX and at least one MCC.

 Selecting CDF performs tests using pilot, synch, paging and six traffic channels, however, the gain

for the channel elements is specified in the CDF file.

9 Save the result and download the BLO data to the target BBX(s):

– Click the Save Result button on the result screen.

The window closes automatically.

10 Logout from the BTS and close the LMF session:

– Click BTS>Logout to close the BTS connection.

– Close the LMF window.

11 Restore the new “bts–*.cal” file to the CBSC.

12 Enable the target device(s) from the CBSC.