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S:\Hp8960\E1962B CDMA 2000\Pi Release\Reference Guide\Chapters\cdma2000_prog_generic_step1_ac.fm
Step 1: Set Up the Test Set
Step 1: Set Up the Test Set
The following information provides additional details on Step 1 of the Programming Flowchart. This
information is applicable to all test applications.
Description
In this step you initialize the test set and set up the general operating conditions.
Contents
• “Initialize the Test Set”
• “Set Up General Operating Conditions”
Initialize the Test Set
• Fully Preset the Test Set
It is important to get the test set to a known state before each production session.
Sending the *RST command fully presets the test set, which ends all call processing and measurement
processes and restores all values to defaults.
• Clear the Error Queue
Before each production session, it is useful to clear the error queue of any old messages. That way, you know
that any messages logged are relevant to the current production session.
Sending the *CLS command clears the error queue.
Set Up General Operating Conditions
• Turn Debugger On
While developing your code, it is very useful to enable the GPIB debugger using the
SYST:COMM:GPIB:DEB ON command. When the debugger is on, the test set alerts you when you send an
incorrect command, and it also tells you which symbol or letter in the command is incorrect.
NOTE You should turn the debugger off once you have finished development and your code is stable.
• Set Operating Mode
The test set contains a base station emulator (BSE), whose primary purpose is to provide enough call
processing to allow parametric measurements of a mobile station’s RF signal.
An important characteristic of the test set’s base station emulator is its operating mode. The operating
mode sets the way in which the base station emulator interacts with the mobile station.
Active cell mode is used when emulating a normal cell. Active cell mode allows active signaling between the
mobile station and BSE. The mobile station camps to the BSE signal, and an actual call is established.
In test mode, the mobile station synchronizes to the BSE signal and transmits an appropriate signal which
the test set analyzes.
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