5-23
Hardkey and Softkey Reference
Ampl
Status after Normal Preset: 0.0 dBm
SCPI Commands:
[:SOURce]:POWer:REFerence <val><unit>
[:SOURce]:POWer:REFerence?
Ampl Ref Off On
This softkey toggles the amplitude reference mode on and off. When amplitude
reference mode is turned on, the amplitude value displayed is equal to the current
hardware output power minus the reference value set by the
Ampl Ref Set softkey.
(The
Ampl Ref Set softkey sets the reference value equal to the current output
power. If you have not yet set the reference value, the normal preset value for
amplitude reference is 0 dBm.) The
REF indicator is turned on in the amplitude
area of the display. All amplitude parameters will now be set as relative to the
reference value.
Amplitude offsets can be used with amplitude reference mode. In this situation,
the display will show the amplitude calculated as the current hardware output
power minus the reference value plus the amplitude offset.
Amplitude reference mode only changes the display; it does not change the RF
output power. For example, if you set your RF output power to
−20 dBm, set your
reference value, and then turn amplitude reference mode on, your display shows
your amplitude as 0 dB but your output power remains at
−20 dBm.
Softkey Location: Press
Ampl, More 1 of 2, Ampl Ref Off On
Status after Normal Preset: Off
SCPI Commands:
[:SOURce]:POWer:REFerence:STATe ON|OFF|1|0
[:SOURce]:POWer:REFerence:STATe?
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