Rigol DG800 Series - Page 18

RIGOL Chapter 2 Command System
2-4 DG800 Programming Guide
according to the characteristics of the signal under test. During this process, "AUTO" is displayed in the gate
time area in the frequency counter interface. The gate time currently selected by the instrument will be
displayed in the gate time area in the frequency counter interface after the instrument selects a proper gate
time.
Return Format
If you have currently selected a gate time, the query returns USER1, USER2, USER3, USER4, USER5, or
USER6 that corresponds to the specified gate time. If you send the
:COUNter:AUTO command to enable
the instrument to select a proper gate time automatically, then during this process, the query returns
"AUTO"; and returns USER1, USER2, USER3, USER4, USER5, or USER6 after a proper gate time is selected
by the instrument.
Example
:COUN:GATE USER2 /*Sets the gate time of the measurement system to USER2 (10.48 ms).*/
:COUN:GATE? /*Queries the gate time of the measurement system and the query returns USER2.*/
:COUNter:HF
Syntax
:COUNter:HF {ON|1|OFF|0}
:COUNter:HF?
Description
Enables or disables the high frequency rejection function of the frequency counter.
Queries the on/off status of the high frequency rejection function of the frequency counter.
Parameter
Name
Type
Range
Default
{ON|1|OFF|0}
Bool
ON|1|OFF|0
OFF
Remarks
Enable the high frequency rejection when low-frequency signal with less than 150 kHz frequency is
measured to filter out the high-frequency noise interference and improve the measurement accuracy.
Disable the high frequency rejection when high-frequency signal with greater than 150 kHz frequency is
measured. At this time, the maximum input frequency can be 240 MHz.
Return Format
The query returns ON or OFF.
Example
:COUN:HF ON /*Enables the high frequency rejection function of the frequency counter.*/
:COUN:HF? /*Queries the on/off status of the high frequency rejection function of the frequency
counter and the query returns ON.*/
:COUNter:LEVEl
Syntax
:COUNter:LEVEl {<value>|MINimum|MAXimum}
:COUNter:LEVEl? [MINimum|MAXimum]
Description
Sets the trigger level of the frequency counter.
Queries the trigger level of the frequency counter.