Chapter 2 Command System  RIGOL 
DG800 Programming Guide  2-3 
:COUNter:AUTO 
 
Syntax 
:COUNter:AUTO 
 
Description 
The instrument will select a proper gate time automatically according to the characteristics of the signal 
under test after sending this command. 
 
Remarks 
You can also send the 
:COUNter:GATEtime command to set the desired gate time. 
 
 
:COUNter:COUPling 
 
Syntax 
:COUNter:COUPling {AC|DC} 
:COUNter:COUPling? 
 
Description 
Sets the coupling mode of the input signal to AC or DC. 
Queries the coupling mode of the input signal. 
 
Parameter 
 
Return Format 
The query returns AC or DC. 
 
Example 
:COUN:COUP DC    /*Sets the coupling mode of the input signal to DC.*/ 
:COUN:COUP?  /*Queries the coupling mode of the input signal and the query returns DC.*/ 
 
 
:COUNter:GATEtime 
 
Syntax 
:COUNter:GATEtime {USER1|USER2|USER3|USER4|USER5|USER6} 
:COUNter:GATEtime? 
 
Description 
Selects the gate time of the measurement system. 
Queries the gate time of the measurement system. 
 
Parameter 
{USER1|USER2|USER3|
USER4|USER5|USER6} 
Discrete 
{USER1|USER2|USER3|USER4|
USER5|USER6} 
USER1 
 
Remarks 
  The gate time represented by USER1 through USER6 are as shown in the table below. 
  For low-frequency signals (for example, the frequency is lower than 5 Hz), you are recommended to  
set the gate time to USER6. 
  Send the 
:COUNter:AUTO command and the instrument will select a proper gate time automatically