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Chapter 1 271
GPIB Command Dictionary
MEASure subsystem
:DEC:NAMP:DTMF:SYMBol?
This command queries the symbol number assigned by the encoder for
each of the DTMF tones. As each tone is analyzed, the symbol that
represents each tone is returned as a quoted string.
Syntax
MEAS:DEC:NAMP:DTMF:SYMB? !returns a quoted string
Screen/field equivalent
MEAS:DEC:NAMP:DTMF:SYMB? reads the Sym column 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.
:IQPLot[:DISPlay]:I?
This query returns an array of 384 values representing the I
(horizontal) values for each decision point. The values are scaled to
match the display (1 = average power of the RF Carrier).
Syntax
MEAS:IQPL[:DISP]:I?
Screen/field equivalent
MEAS:IQPL[:DISP]:I? does not correspond to any field in the IQPLOT
screen but represents the horizontal values for the decision points on
the plot.
:IQPLot[:DISPlay]:Q?
This command queries and returns an array of 384 values representing
the Q (vertical) values for each decision point. The values are scaled to
match the display (1 = average power of the RF Carrier).
Syntax
MEAS:IQPL[:DISP]:Q?
Screen/field equivalent
MEAS:IQPL[:DISP]:Q? does not correspond with a field in the IQPLOT
screen but represents the vertical decision points shown on the plot.