HP 8921A User Manual page 119

Cell site test set
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[] Access
Active
[] Active
NOTE:
The Test Set may still be outputting a modulated RF carrier but the Test Set's firmware is not
active and no communication can occur between a mobile station and the Test Set.
AF Freq
Amplitude
When lit, the
Access
station with command information on the forward voice channel. This is a
transitory state.
The Test Set's speaker is turned off when in the access state. This is done to
eliminate any possible audio feedback which may occur if the mobile station's
microphone is open.
This field is used to turn on the forward control channel of the Test Set or to force
a return to the active state from any other state (register, page, access, connect). If
the forward control channel of the Test Set is already active, selecting this field
will deactivate and then reactivate the control channel.
When lit, the
Active
turned on.
If this annunciator is lit, the base station is transmitting system parameter
overhead messages on the assigned control channel. If the annunciator is not lit,
the base station is not active.
The
field is displayed only when the
AF Freq
This field displays the audio frequency of the demodulated FM signal being
transmitted by the mobile station. Four dashes (----) indicate that no audio
frequency is present to measure. A numeric value would only be displayed when
the Test Set's
Connected
This field is used to set the output power of the Test Set's transmitter (that is, the
output power of the Test Set's RF Generator).
annunciator indicates the Test Set is signaling the mobile
annunciator indicates the control channel of the Test Set is
annunciator is lit (connected state).
Chapter 6, Call Processing Subsystem
The CALL CONTROL Screen
field is set to
Display
.
Meas
119

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