RIGOL DG1000Z Series - Manual (Page 17)

Chapter 2 Command System RIGOL
DG1000Z Programming Guide 2-5
:COUNter:HF
Syntax :COUNter:HF {ON|1|OFF|0}
:COUNter:HF?
Description Enable or disable the high-frequency rejection function of the frequency counter.
Query 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
Explanation Enable the high-frequency rejection when measuring low-frequency signal with
lower than 250kHz frequency to filter out the high-frequency noise and improve
the measurement accuracy. Disable the high-frequency rejection when measuring
high-frequency signal with greater than 250kHz frequency; at this point, the
maximum input frequency is 200MHz.
Return Format The query returns ON or OFF.
Example :COUN:HF ON /*Enable the high-frequency rejection function of the frequency
counter*/
:COUN:HF? /*Query 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 Set the trigger level of the frequency counter.
Query the trigger level of the frequency counter.
Parameter Name Type Range Default
<value> Real -2.5V to 2.5V 0V
Explanation  The frequency counter starts measuring when the input signal reaches the
specified trigger level.
 The minimum resolution is 6mV.
Return Format The query returns the trigger level in scientific notation. The return value contains 7
effective digits, for example, 1.500000E+00 (the trigger level is 1.5V).
Example :COUN:LEVE 1.5 /*Set the trigger level of the frequency counter to 1.5V*/
:COUN:LEVE? /*Query the trigger level of the frequency counter and the
query returns 1.500000E+00*/