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62 Chapter 2

S:\agilent\83217\OPT001\BOOK\CHAPTERS\tdscrip.fm

Test Descriptions

TEST_26 - TXA Switch Channels

NOTE

As part of the TXA switch channels test, the test software ordinarily

measures power, RF frequency error, and SAT frequency error.

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 only the RF frequency error and SAT

frequency error measurements.

Description

This test measures transmitter frequency error, power, and SAT

frequency error over a range of channels defined by parameter 45. TXA

Switch Channels Start Channel (Chan No.), parameter 46. TXA Switch

Channels Step Channel (Chan No.), and parameter 47. TXA Switch

Channels Stop Channel (Chan No.).

The test works as follows:

• The MSUT’s channel number is changed over the desired range

indicated by above parameters.

• The channels will all be wide voice channels or they will all be

narrow voice channels as determined by the currently active entry in

the Channel Information table.

• For each wide channel, the TX output power, RF frequency error, and

SAT frequency error is measured.

• For each narrow channel, the TX output power and RF frequency

error are measured and the DSAT sequence coming from the phone

is decoded and displayed.

• Each time the channel is changed, the SAT frequency is changed to

the next valid SAT tone or DSAT value.

Pass/Fail Limits Used

• 26. TXA Output Power at Level 0 (dBm)

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Carrier 38TXA Guide Guía de usuario Pagina 62