User Manual

Test Equipment Set–up – continued

Jan 2002

3-59

SC4812ET BTS Optimization/ATP — CDMA LMF

Equipment Warm-up

Warm-up BTS equipment for a minimum of 60 minutes

prior to performing the BTS optimization procedure. This

assures BTS stability and contributes to optimization

accuracy.

– Time spent running initial or normal power-up,

hardware/firmware audit, and BTS download counts

as warm-up time.

IMPORTANT

Before installing any test equipment directly to any BTS

TX OUT connector, verify there are no CDMA channels

keyed.

– At active sites, have the OMC-R/CBSC place the

antenna (sector) assigned to the BBX under test OOS.

Failure to do so can result in serious personal injury

and/or equipment damage.

WARNING

Automatic Cable Calibration

Set–up

Figure 3-9 and Figure 3-10 show the cable calibration setup for the test

sets supported by the LMF. The left side of the diagram depicts the

location of the input and output connectors of each test equipment item,

and the right side details the connections for each test. Table 3-33

provides a procedure for performing automatic cable calibration.

Manual Cable Calibration

If manual cable calibration is required, refer to the procedures in

Appendix F.