Keysight 34465A - Table of Contents

[SENSe:]{FREQuency|PERiod}:NULL:VALue {<value>|MIN|MAX|DEF}
[SENSe:]{FREQuency|PERiod}:NULL:VALue? [{MIN|MAX|DEF}]
Stores a null value for frequency and period measurements.
Unlike the SENSe:FREQuency and SENSe:PERiod range and aperture commands, this parameter is not
shared between frequency and period measurements. The null parameters are independent for frequency
and period measurements.
Parameter Typical Return
Frequency: -1.2E6 to +1.2E6. Default: 0.
Period: -1.2 to +1.2 seconds. Default: 0.
+1.00000000E-02
Configure frequency measurements, using the null function to subtract 1kHz from the measurements.
Make and read two measurements:
CONF:FREQ
FREQ:NULL:STAT ON;VAL 1 kHz
SAMP:COUN 2
READ?
Typical Response: +1.04530000E+03,+1.04570000E+03
l Specifying a null value disables automatic null value selection ([SENSe:]{FREQuency|PERi-
od}:NULL:VALue:AUTO OFF).
l To use the null value, the null state must be on ([SENSe:]{FREQuency|PERiod}:NULL:STATe ON).
l This parameter is set to its default value after a Factory Reset (*RST), Instrument Preset
(SYSTem:PRESet), or CONFigure function.
[SENSe:]{FREQuency|PERiod}:NULL:VALue:AUTO {ON|1|OFF|0}
[SENSe:]{FREQuency|PERiod}:NULL:VALue:AUTO?
Enables or disables automatic null value selection for frequency and period measurements.
Unlike the SENSe:FREQuency and SENSe:PERiod range and aperture commands, this parameter is not
shared between frequency and period measurements. The null parameters are independent for frequency
and period measurements.
Parameter Typical Return
{ON|1|OFF|0}. Default: OFF. 0(OFF)or1(ON)
Configure frequency measurements, using the null function to subtract 1 kHz from them. Make and read
two measurements:
CONF:FREQ
FREQ:NULL:STAT ON;VAL 1 kHz
SAMP:COUN 2
READ?
Typical Response: +1.04530000E+00,+1.04570000E+00
Make a second set of measurements using automatic null value selection:
FREQ:NULL:VAL:AUTO ON
READ?
Typical Response: +0.00000000E+00,+0.01420000E+00
Keysight Truevolt Series Operating and Service Guide
339
SCPI Programming Reference