Stanford Research Systems SR780, Operating Manual And Programming Reference

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Display Setup Commands 5-33
SR780 Network Signal Analyzer
UNIT (?) d {, i}
The UNIT command sets (queries) the Units of display d. The parameter i selects
the units from the list below.
Changing the Units changes the graph scale parameters (Y Max, Y Min, Y Mid,
Y Center and Y/div).
i Units
0 Vpk
1 Vrms
2 Vpk
2
3 Vrms
2
4 dBVpk (not for Nyquist View)
5 dBVrms (not for Nyquist View)
6 dBm (not for Nyquist View)
7 dBspl (EU=Pascals only)
Phase Views Only
8 degrees
9 radians
Transfer Function, Coherence, User Math Only
10 Units
11 dB
Only those units which are allowed for the present Measurement and View may
be selected. In general, the first 7 choices are available (except for Nyquist View
which only allows the first 4 choices). Transfer Function and Coherence are
unitless so only dB and Units are available. Phase and Unwrapped Phase must
select either degrees or radians.
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.
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.
YMIN (?) d {, x}
The YMIN command sets (queries) the Y Minimum (bottom 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.