Y Axis Unit - Agilent Technologies X Series Manual

Y Axis Unit

Displays the menu keys that enable you to change the vertical (Y) axis amplitude unit. The analyzer
retains the entered Y Axis Unit separately for both Log and Lin amplitude scale types. For example, if
Scale Type has been set to Log, and you set Y Axis Unit to dBm, pressing Scale Type (Log) sets the Y
Axis Unit to dBm. If Scale Type has been set to Lin and you set Y Axis Unit to V, pressing Scale Type
(Lin) sets the Y Axis Unit to V. Pressing Scale Type (Log) again sets the Y axis unit back to dBm.
The units of current (A, dBmA, dBuA) are calculated based on 50 ohms input
NOTE
impedance.
All four of the EMI units (dBμA/m, dBμV/m, dBG, dBpT) are treated by the
instrument exactly as though they were dBuV. The user must load an appropriate
correction factor using Amplitude Corrections for accurate and meaningful results.
If a SCPI command is sent to the analyzer that uses one of the EMI units as a
terminator, the analyzer treats it as though DBUV had been sent as the terminator.
Key Path
Mode
Scope
Remote Command
Example
Notes
AMPTD Y Scale
SA
Meas Global
:UNIT:POWer
DBM|DBMV|DBMA|V|W|A|DBUV|DBUA|DBUVM|DBUAM|DBPT|DBG
:UNIT:POWer?
UNIT:POW dBmV
UNIT:POW?
The Y axis unit has either logarithmic or linear characteristics. The set of units
that is logarithmic consists of dBm, dBmV, dBmA, dBμV, dBμA, dBμV/m,
dBμA/m, dBpT, and dBG. The set if units that is linear consists of V, W, and
A. The chosen unit will determine how the reference level and all the
amplitude-related outputs like trace data, marker data, etc. read out.
AMPTD Y Scale
371