User's Manual

Manual Cable Calibration
PRELIMINARY
SC 4812ETL BTS Optimization/ATP
08/15/2000
F-10
Calibrating Test Cable Setup
using HP PCS Interface (HP83236)
Table F-9 covers the procedure to calibrate the test equipment using
the HP8921 Cellular Communications Analyzer equipped with the
HP83236 PCS Interface.
This calibration method must be executed with great care.
Some losses are measured close to the minimum limit of
the power meter sensor (–30 dBm).
NOTE
Prerequisites
Ensure the following prerequisites have been met before proceeding:
S Test equipment to be calibrated has been connected correctly for cable
calibration.
S Test equipment has been selected and calibrated.
Table F-9: Calibrating Test Cable Setup (using the HP PCS Interface)
Step Action
NOTE
Verify that GPIB controller is turned off.
1 Insert HP83236 Manual Control System card into memory card slot.
2 Press the Preset pushbutton.
3 Under Screen Controls, press the TESTS pushbutton to display the TESTS (Main Menu) screen.
4 Position the cursor at Select Procedure Location and select it. In the Choices selection box, select
CARD.
5 Position the cursor at Select Procedure Filename and select it. In the Choices selection box, select
MANUAL.
6 Position the cursor at RUN TEST and select it. HP must be in Control Mode Select YES.
7 If using HP 83236A:
Set channel number=<chan#>:
– Position cursor at Channel
Number and select it.
– Enter the chan# using the numeric
keypad; press [Enter] and the
screen will go blank.
– When the screen reappears, the
chan# will be displayed on the
channel number line.
If using HP 83236B:
Set channel frequency:
– Position cursor at Frequency Band and press Enter.
– Select User Defined Frequency.
– Go Back to Previous Menu.
– Position the cursor to 83236 generator frequency and
enter actual RX frequency.
– Position the cursor to 83236 analyzer frequency and
enter actual TX frequency.
. . . continued on next page
F