l
As defined in the SCPI standard, <resolution> must be specified in absolute time (seconds), not as a frac-
tion of the input signal period.
l The gate source (see SENSe:FREQuency:GATE:SOURCE) is set to TIME.
l
The counter uses the <expected> and <resolution> parameters to configure the setting for the
SENSe:FREQuency:GATE:TIME command. The table below shows the relationship between relative res-
olution and gate time in seconds, where relative resolution = <resolution> / <expected>.
Relative Resolution
Gate Time
(53220A)
Gate Time
(53230A)
≤ 1.1E-14 1000 sec 1000 sec
>1.1E-14 to ≤1.1E-13 1000 sec 100 sec
>1.1E-13 to ≤1.1E-12 100 sec 10 sec
>1.1E-12 to ≤1.1E-11 10 sec 1 sec
>1.1E-11 to ≤1.1E-10 1 sec 100 msec
>1.1E-10 to ≤1.1E-9 100 msec 10 msec
>1.1E-9 to ≤1.1E-8 10 msec 1 msec
>1.1E-8 to ≤1.1E-7 1 msec 100 usec
>1.1E-7 to ≤1.1E-6 100 usec 10 usec
>1.1E-6 100 usec 1 usec
l Use READ? or INITiate[:IMMediate] to start the measurement.
Examples
The following example configures the instrument for average period measurements on channel 1 using
default parameters, makes two measurements, and then transfers the measurements to the instrument
output buffer.
CONF:PER
SAMP:COUN 2
READ?
Typical Response: +1.00230000000000E-007,+1.00170000000000E-007
The following example configures the instrument for 4-digit average period measurements of an approx-
imately 250 MHz signal on channel 2, makes one measurement using an external trigger, and then trans-
fers the measurement to the instrument output buffer.
CONF:PER 4E-9,1e-12,(@2)
TRIG:SOUR EXT;SLOP POS
INIT
FETC?
Typical Response: +4.03337934613473E-009
Keysight 53220A/53230A Programmer's Reference 139
CONFigure:PERiod
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