HP 8920A User Manual page 138

Rf communications test set

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Chapter 6, Call Processing Subsystem

The CALL CONTROL Screen

S:\HP892XX\USRGUIDE\manual\callscrn.fb

field is displayed only when the

This field displays the measured RF power of the RF carrier being transmitted by

the mobile station. A non-zero value would only be displayed when the Test Set's

annunciator is lit).

When the CALL CONTROL screen is displayed and the Test Set is in the

connected state (

carrier power is constantly monitored. If the power falls below 0.0005 Watts, the

error message

RF Power Loss indicates loss of Voice Channel

be displayed, and the Test Set will terminate the call and return to the active state

annunciator is lit).

In order to ensure that the Test Set makes the correct decisions regarding the presence of

the mobile stations's RF carrier, the Test Set's RF power meter should be zeroed before

using the Call Processing Subsystem. Failure to zero the power meter can result in errone-

ous RF power measurements. See

for information on manually zeroing the RF Power meter.

annunciator is lit), the mobile station's transmitted

"Conditioning the Test Set for Call Processing" on

field is set to

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