Carrier 38TXA Guide Guía de usuario descargar pdf (Pagina 59)

Chapter 2 59

Test Descriptions

TEST_25 - CPA Flow Chart

NOTE

As part of the CPA flow chart test, the test software ordinarily

measures power. However, if the test set is an Agilent 8924E, and the

test set does not include a spectrum analyzer (hardware Option 012),

and parameter 22 is set to YES, the test will perform the rest of the

tests, but not the power measurements.

Description

This test displays a flow-chart representing a cellular phone as it gains

access to a system. It operates with AMPS and NAMPS phones. Once

you have established a voice channel using the flow chart for AMPS and

NAMPS phones, you can test cellular-radio functions including

hand-offs, power level changes, SAT/DSAT changes, hook flashes, and

clear the system. At each stage, reverse-channel data is displayed for

analysis, along with measurements of power, frequency error, and

deviation.

Running the MANUAL test procedure

1. At the beginning of this test, the test system simulates a control

channel. The cellular phone must tune to this control channel and

decode the data stream in order to obtain service. When the phone

succeeds at obtaining service, the NO SERVICE indicator on the

phone will turn-off or the SERVICE light will illuminate. If NO

SERVICE continues, try changing the control channel to the other

band by selecting the Cntl Chan field and entering the appropriate

channel number.

2. When the cellular phone first obtains service, you may originate a

call by dialing a phone number and pressing SEND, or you may

perform a registration by pressing the softkey on the test set

corresponding to register. You must originate a call, or perform a

registration before paging the phone. The origination and

registration provide the phone number of the MSUT to the test set.

• To register the phone, select the Register field.

• To originate a call from an AMPS or NAMPS phone, dial a phone

number and press the phone’s SEND.

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Carrier 38TXA Guide Guía de usuario Pagina 59