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Chapter 8, Programming The Call Processing Subsystem
Programming The CALL CONTROL Screen
NOTE:
When the
CALL CONTROL
screen is displayed, the Test Set’s instrumentation is
configured for optimal performance of the signaling decoder. Two characteristics of the
instrumentation which have a significant affect on the performance of the signaling decoder
are: 1) audio frequency gain and 2) post detection filtering.
While the
CALL CONTROL
screen is displayed the audio frequency gain stages
are fixed (that is, autoranging is tuned off). This is necessary to ensure that no
signaling bursts are missed as a result of the audio gain stages autoranging in
response to a burst of signaling data. Fixing the audio gain stages may result in a
slight accuracy degradation for FM deviation measurements less than 7 kHz.
In addition, the post detection bandwidth is set at <20 Hz and >99 kHz in the Active,
Register and Page states, and 300 Hz to 15 kHz when in the Connected state. This is done
to ensure that no signaling tones are filtered off. This wide post detection bandwidth
allows more noise to be introduced into the measurement process which affects the
measured deviation.
Given these conditions it is recommended that FM deviation measurements
requiring full Test Set FM deviation accuracy be made on the
ANALOG MEAS
screen or the
AF ANALYZER
screen. The audio frequency gains stages are set to
autorange while on these screens and post detection filters can be selected to
optimize deviation measurements.
Handoff
This field is used to initiate a handoff.
The voice channel number to hand the mobile station off to, the initial power level
to use on the new voice channel and the SAT tone frequency to transpond on the
new voice channel are specified using the
Chan:
,
Ch Loc:
,
Pwr Lvl:
,
DSAT:
,
and
SAT:
fields under the
Voice Channel Assignment
section of the
CALL
CONTROL
screen.
The :HANDoff command is used to control this field.
There is no query form of the :HANDoff command.
Syntax
:HANDoff
Example
OUTPUT 714;"CALLP:AMPS:HAND
Содержание 8920B
Страница 10: ...10 ...
Страница 16: ...Contents 16 9 Error Messages Index 673 ...
Страница 17: ...17 1 Using HP IB ...
Страница 48: ...48 Chapter 1 Using HP IB Remote Local Modes ...
Страница 49: ...49 2 Methods For Reading Measurement Results ...
Страница 61: ...61 3 HP IB Command Guidelines ...
Страница 84: ...84 Chapter 3 HP IB Command Guidelines Guidelines for Operation ...
Страница 85: ...85 4 HP IB Commands ...
Страница 90: ...90 Adjacent Channel Power ACP ...
Страница 116: ...116 Configure I O Configure ...
Страница 156: ...156 Call Processing ...
Страница 162: ...162 Display DISPlay space TDMA test TESTs TFReq THLP TIBasic TMAKe TPARm TPRint TSEQn TSPec Returns current screen TX ...
Страница 185: ...185 System System SYSTem ERRor Returns integer value quoted string ...
Страница 242: ...242 Common Command Descriptions ...
Страница 251: ...251 5 Advanced Operations ...
Страница 377: ...377 7 IBASIC Controller ...
Страница 458: ...458 Chapter 7 IBASIC Controller The TESTS Subsystem ...
Страница 640: ...640 Chapter 8 Programming The Call Processing Subsystem Example Programs 11280 SUBEND 11290 ...
Страница 643: ...643 9 Error Messages ...
Страница 672: ...672 ...
Страница 682: ...Index 682 ...