42 Chapter 2
Instrument Functions: A - L
AMPLITUDE / Y Scale
Instrument Functions: A - L
Remote Command:
:UNIT:POWer DBM|DBMV|DBMA|V|W|A|DBUV|DBUA|DBUVM|DBUAM|DBPT|DBG
:UNIT:POWer?
Remote Command Notes: . The settings of Y Axis Units and Scale Type, affect how the
data is read over the remote interface. When using the remote interface no
units are returned, so you must know what the Y-Axis units are to
interpret the results:
Example 1, set the following:
Scale Type (Log)
Y Axis Units, dBm
Scale/Div, 1 dB
Ref Level, 10 dBm
This sets the top line to 10 dBm with each vertical division representing 1
dB. Thus, if a point on trace 1 is on the fifth graticule line from the top, it
represents 5 dBm and will read out remotely as 5.
Example 2, set the following:
Scale Type (Lin)
Y Axis Units, Volts
Ref Level, 100 mV (10 mV/div)
This sets the top line to 100 mV and the bottom line to 0 V, so each vertical
division represents 10 mV. Thus, if a point on trace 1 is on the fifth
graticule line from the top, it represents 50 mV and will read out remotely
as 50.
Example:. UNIT:POW dBmV
UNIT:POW?
2.1.8.1 dBm
Sets the amplitude units to dBm.
Key Path:
AMPLITUDE / Y Scale, More, Y Axis Units
Remote Command:
See “Y Axis Units” on page 41.
Example: UNIT:POW DBM
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