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Chapter 4, Description of Fields
Fields
Ch Loc:
The Ch Loc: field (NAMPS and NTACS system types only) sets the analog
channel location that will be assigned to the mobile station by the Test Set as
either an initial voice channel location or as a handoff channel location
assignment.
For NAMPS systems, the choices are:
• Lower - 10 kHz below standard wide analog channel
• Middle - centered at the wide analog channel
• Upper - 10 kHz above the standard wide analog channel
• Wide - standard 25 kHz AMPS channel width
For NTACS systems, the choices are:
• Narrow - standard narrow band NTACS channel, the default value
• Wide - the JTACS channel
The :CEXT:SETT command is used to set the new channel location.
The query form of the command (that is, :CEXT:SETT?), can be used to
determine the current setting of the Ch Loc right-hand field and CEXT:ACT? can
be used to determine the actual setting of the
Ch Loc: left-hand field.
The syntax and an example for NAMPS systems are as follows:
Syntax
:CEXTension:ACT?
:CEXTension:SETTing <‘><LOWER/MIDDLE/UPPER/WIDE><‘>
:CEXTension:SETTing?
Example
OUTPUT 714;"CALLP:NAMPS:CEXT:ACT?"
OUTPUT 714;"CALLP:NAMPS:CEXT:SETT ‘LOWER’"
OUTPUT 714;"CALLP:NAMPS:CEXT:SETT?"
ENTER 714;Last_ord_sent$
The syntax and an example for NTACS systems are as follows:
Syntax
:CEXTension:ACT?
:CEXTension:SETTing <‘><NARROW, WIDE CHAN><‘>
:CEXTension:SETTing?