Stanford Research Systems SR785, Operating Manual And Programming Reference

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5-40 Display Setup Commands
SR785 Dynamic Signal Analyzer
i View
0 Log Magnitude
1 Linear Magnitude
2 Magnitude Squared
3 Real Part
4 Imaginary Part
5 Phase
6 Unwrapped Phase
7 Nyquist
8 Nichols
A measurement should be setup by first choosing the Measurement Group, then
the Measurement, then the View, then the Units. Finally, the display scale and
references should be set.
UNIT? d
The UNIT query command queries the Units of display d. The unit string
depends on the measurement, the view, and the settings of dB Units, pkUnits,
PSD Units and Phase Units.
UNDB (?) d {, i}
The UNDB command sets (queries) the dBUnits setting for display d. The
parameter i sets dBUnits to Off (0), On(1), dBm (2), and dBspl (3).
UNPK (?) d {, i}
The UNPK command sets (queries) the pk units setting for display d. The
parameter i sets pkUnits to Off (0), pk (1), rms (2), and pp (3).
PSDU (?) d {, i}
The UNPK command sets (queries) psd units setting for display d. The
parameter i sets psd Units to Off (0), or On (1).
UNPH (?) d {, i}
The UNPH command sets (queries) phase units setting for display d. The
parameter i sets phase Units to Degrees (0), or Radians (1).
DBMR (?) {x}
The DBMR command sets (queries) the dBm Reference Impedance (for BOTH
displays). The parameter x is a real value of Ohms. This affects the calculation
of dBm units in both displays.
YMAX (?) d {, x}
The YMAX command sets (queries) the Y Maximum (top reference) of display
d. The parameter x is a real number in the display units. This command is not
valid when the View is Nichols or Nyquist.
YMID (?) d {, x}
The YMID command sets (queries) the Y Midpoint (center reference) of display
d. The parameter x is a real number in the display units. This command is not
valid when the View is Nichols or Nyquist.