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AMPTD Y Scale
Range Auto/Man
The Auto setting for Range causes the range to be set based on the Y Scale settings. When Range is
“Auto”, the I & Q Range are set based on the top of the Y Scale when the Y scale is in dB units (for
example, power), or to the max(abs(top), abs(bottom)) when the Y scale reference is not at the top of the
screen.
Not all measurements support Range Auto/Man. If Auto is not supported in the current measurement,
this key is grayed out and shows “Man” and MAN is returned to a SCPI query, but this does NOT change
the Auto/Man setting for Range.When you go to a measurement that supports Auto, it goes back to Auto
if it was previously in Auto mode.
Readback Text: When Range is Auto, "[Auto]"
When Range is Man and I & Q are the same, "[<range value>]"
When Range is Man and I & Q are different:
"[I: <I range value>
Q: <Q range value>]"
See I Range and Q Range for the <range value> enumeration definition.
Initial S/W Revision: Prior to A.02.00
Key Path:
AMPTD Y Scale, Range
Scope: Meas Global
Remote Command: [:SENSe]:VOLTage:IQ:RANGe:AUTO OFF|ON|0|1
[:SENSe]:VOLTage:IQ:RANGe:AUTO?
Example: Put the I Range and Q Range in manual.
VOLT:IQ:RANG:AUTO OFF
Dependencies: If Auto is not supported, sending the SCPI command will generate an error.
Couplings: When in Auto, both I Range and Q Range are set to the same value, computed
as follows:
Maximum absolute value is computed for the Y Scale. The top and bottom of
the graph are computed based on Ref Value, Scale/Div, and Ref Position.
Formula: YMax = max(abs(top), abs(bottom)).
The I Range and Q Range are then set to YMax.
Preset: ON
State Saved: Saved in instrument state
Range: Auto | Man
Initial S/W Revision: Prior to A.02.00