GDS-1000B Programming Manual 
78 
Returns the source (CH1, CH2, CH3, CH4, MATH) 
:MEASure:SOURce1 CH1 
Sets source1 to channel 1. 
 
Sets or queries the method used to determine the 
High-Low measurement values.   
:MEASure:METHod { AUTo | HIStogram | MINMax 
| ? } 
Set to the Histogram method. 
Set to the Min-Max method. 
Returns the measurement method (AUTO, 
HISTOGRAM, MINMAX) 
:MEASure:METHod: AUTo 
Set the measurement method to auto. 
:MEASUrement:REFLevel:PERCent:HIGH 
 
Sets or queries the high reference level as a 
percentage.   
:MEASUrement:REFLevel:PERCent:HIGH {<NRf> | ?} 
Returns the high reference level 
:MEASUrement:REFLevel:PERCent:HIGH 50.1 
Set the high reference level to 50.1%.