Agilent Technologies PSA Series Manual page 197

4.4.4.2.1.3 Ratio Reference
If AM depth is to be displayed relative to a reference, enter the value as a ratio reference using this key.
Mode:
Key Path:
Remote Command:
Preset:
State Saved:
Min:
Max:
Example:
4.4.4.2.1.4 Ratio Mode
The ratio and previous ratio functions permit any measurement result to be scaled to a reference. The reference may be
either a measurement result or a keyboard entry. The Log/Linear key enables measurement results to be displayed in linear
or logarithmic units In the Ratio mode, measurements are made in the same way as when not in the Ratio mode. However,
before the result is displayed, the internal controller converts it to ratio. The following equations are used for computing
ratio:
(M/R) * 100 % = % ratio for linear display,
20* log (M/R) = dB ratio for logarithmic display,
where M is the measurement result and R is the ratio reference.
Mode:
Key Path:
Remote Command:
Preset:
State Saved:
Range:
Example:
Chapter 4
MRECEIVE
Amplitude Y Scale
:DISPlay:AMDepth:RREFerence <percent>
:DISPlay:AMDepth:RREFerence?
:DISPlay:AMDepth:RREFerence:AUTO 0|1|OFF|ON
:DISPlay:AMDepth:RREFerence:AUTO?
100.00
Saved in instrument state.
0.01
100.00
:DISP:AMD:RREF 1.0
:DISP:AMD:RREF?
:DISP:AMD:RREF:AUTO OFF
:DISP:AMD:RREF:AUTO?
MRECEIVE
Amplitude Y Scale
:DISPlay:AMDepth:RMODe LOG|LINear
:DISPlay:AMDepth:RMODe?
LOG
Saved in instrument state.
Log | Linear
:DISP:AMD:RMOD LOG
:DISP:AMD:RMOD?
Front-Panel Key and SCPI Command Reference
Measurement keys
197