Agilent Technologies E4445A Manual

Chapter 4
Front-Panel Key and SCPI Command Reference
Measurement keys
197
Front-Panel Key and SCPI Command
Reference
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.
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: MRECEIVE
Key Path:
Amplitude Y Scale
Remote Command: :DISPlay:AMDepth:RREFerence <percent>
:DISPlay:AMDepth:RREFerence?
:DISPlay:AMDepth:RREFerence:AUTO 0|1|OFF|ON
:DISPlay:AMDepth:RREFerence:AUTO?
Preset: 100.00
State Saved: Saved in instrument state.
Min: 0.01
Max: 100.00
Example: :DISP:AMD:RREF 1.0
:DISP:AMD:RREF?
:DISP:AMD:RREF:AUTO OFF
:DISP:AMD:RREF:AUTO?
Mode: MRECEIVE
Key Path:
Amplitude Y Scale
Remote Command: :DISPlay:AMDepth:RMODe LOG|LINear
:DISPlay:AMDepth:RMODe?
Preset: LOG
State Saved: Saved in instrument state.
Range: Log | Linear
Example: :DISP:AMD:RMOD LOG
:DISP:AMD:RMOD?

Agilent Technologies E4445A Specifications

General

Brand	Agilent Technologies
Model	E4445A
Category	Measuring Instruments
Language	English