Tektronix TDS460A User Manual

Command Descriptions

TDS Family Oscilloscope Programmer Manual

"&% 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.

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.