l LEVel or LEVel1 sets the threshold for all measurements other than rise/fall time and single-channel
time interval. For rise/fall time, LEVel or LEVel1 sets the lower reference; LEVel2 sets the upper ref-
erence. For single-channel time interval, LEVel or LEVel1 sets the threshold for the start event; LEVel2
sets the threshold for the stop event.
l The instrument sets the input threshold to 0.0 V with auto-leveling enabled after a Factory Reset (*RST
command) or an Instrument Preset (SYSTem:PRESet command).
Return Format
The query returns the input threshold voltage in the form +1.25000000E+000.
Examples
The following example makes a frequency measurement on channel 1. The input is configured for a DC-
coupled 0.5V threshold with a negative slope.
INP:COUP DC
CONF:FREQ 1.2E6
INP:LEV .5
INP:SLOP NEG
READ?
Typical Response: +1.21513398300000E+006
See Also
CONFigure
INPut{1|2}:PROBe
INPut{1|2}:PROTection?
INPut{1|2}:LEVel:AUTO
MEASure?
INPut{1|2}:LEVel{1|2}
214 Keysight 53220A/53230A Programmer's Reference