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268 Chapter 1
GPIB Command Dictionary
MEASure subsystem
:DEC:NAMP:DTMF:LOW:DISPlay <string>
:DEC:NAMP:DTMF:LOW:DISPlay?
These commands set/query the display mode of the low tone in the
DTMF pair.
Syntax
MEAS:DEC:NAMP:DTMF:LOW:DISP ‘Freq’
‘Frq Err’
MEAS:DEC:NAMP:DTMF:LOW:ERR?
Screen/field equivalent
MEAS:DEC:NAMP:DTMF:LOW:DISP controls the upper subfield of
the Lo Tone field on the SIGNALING DECODER screen when the Mode
field is set NAMP-NTAC and the Measure field is set to DTMF, and the
Channel field is set to Voice.
:DEC:NAMP:DTMF:HIGH:FREQuency:ABSolute <meas cmnd>
:DEC:NAMP:DTMF:HIGH:FREQuency:ABSolute?
These commands set/query the frequency of the high tone in the DTMF
pair. The MEAS:DEC:NAMP:DTMF:HIGH:DISP ‘Freq’ command
must be used to display the absolute frequency of the high tone.
Syntax
MEAS:DEC:NAMP:DTMF:HIGH:FREQ:ABS
!See “Multiple Real Number Setting Syntax” on page 282
MEAS:DEC:NAMP:DTMF:HIGH:FREQ:ABS? !returns up to 19 real
values
Screen/field equivalent
MEAS:DEC:NAMP:DTMF:HIGH:FREQ:ABS? reads the Hi Tone
column on the SIGNALING DECODER screen when the Mode field is
set NAMP-NTAC, the Measure field is set to DTMF, and the upper subfield
of the Hi Tone field is set to Freq, and the Channel field is set to Voice.