User's Manual

Table Of Contents
Manual Cable Calibration – continued
F-38 1X SC 4812T Lite BTS Optimization/ATP FEB 2005
PRELIMINARY
Table F-23: Test Cable Set–up (using the HP PCS Interface) Calibration Procedure
n ActionStep
25 Calculate the Total Test Set–up Loss Value by adding up all the individual Loss Values:
S Example: Total Test Set–up Loss Value = –1.4 –29.8 –20.1 = –51.3 dB.
This calculated value will be used in the next series of tests.
26 Under Screen Controls press the TESTS Button to display the TESTS (Main Menu) Screen.
27 Select Continue (K2).
28 Select RF Generator Level and set to –119 dBm.
29 Click on Pause for Manual Measurement.
30 Verify the GPIB (HP–IB) Address (HP 8921A Communication Analyzer/83203A CDMA
Interface).
Fields not specifically identified remain at default values.
30a Under To Screen, select More.
30b Select IO CONFIG.
30c Set HP–IB Adrs to 18.
30d Set Mode to Talk&Lstn.
31 Verify that the HP 8921A is displaying Frequency instead of RF Channel.
31a Press the blue [SHIFT] Button, then press the Screen Control [DUPLEX] Button; this switches to
the CONFIG (CONFIGURE) Screen.
31b Use the Cursor Control to set RF Display to Freq.
32 Refer to Chapter 3 for assistance in setting the Test Cable Insertion Loss Values into the LMF.
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