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S:\HP892XX\USRGUIDE\manual\callscrn.fb
Chapter 6, Call Processing Subsystem
The CALL CONTROL Screen
TX Power
The TX Power field is displayed only when the Display field is set to Meas.
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
Connect annunciator is lit).
When the CALL CONTROL screen is displayed and the Test Set is in the
connected state (
Connect annunciator is lit), the mobile station’s transmitted
carrier power is constantly monitored. If the power falls below 0.0005 Watts, the
error message
RF Power Loss indicates loss of Voice Channel will
be displayed, and the Test Set will terminate the call and return to the active state
(
Active 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 "Conditioning the Test Set for Call Processing" on
page 141 for information on manually zeroing the RF Power meter.
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