Command Descriptions
TDS Family Oscilloscope Programmer Manual 2–235
"&% specifies that the reference levels are set explicitly using the
MEASUrement:REFLevel:ABSolute commands. This method is useful when
precise values are required. For instance, when designing to published interface
specifications such as RS-232-C.
!% specifies that the reference levels are calculated as a percent relative to
HIGH and LOW. The percentages are defined using the MEASUrement:REFLe-
vel:PERCent commands.
 "&%
specifies that explicit user-defined values are used for the reference levels.

returns either "&% or , indicating the reference levels used.
MEASUrement:REFLevel:PERCent:HIGH
Sets or queries the percent, where 100% is equal to HIGH, that is used to
calculate the high reference level when MEASUrement:REFLevel:METHod is
set to PERCent. This command is equivalent to setting the Reference Levels in
the Measure menu.
Measurement
$ !%'!% 
$ !%'!%

# 
$ !% ' !%
 ranges from 0 to 100 percent, and is the high reference level. The default
is 90%.
 
specifies that the high reference level is set to 95% of HIGH.
Arguments
Examples
Group
Syntax
Arguments
Examples