BNC 1105 Universal Counter - Manual (Page 142)

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[:SENSe]:FREQuency:ARM:STOP:TIMer <numeric value> [S]
Sets or Queries the gate time used in arming Period, Frequency and Frequency ratio
measurements. The range is 1E-3 to 1,000 seconds and the resolution is 0.01E-3
seconds.
Return
Numeric data transferred as ASCII bytes in <NR3> format with six significant digits.
Notes
This will be set to the value of 0.1 second after the counter has been turned off or a
remote interface reset.
This command only applies when [:SENSe]:FREQ:ARM:STOP:SOUR TIM is used.
[:SENSe]:FREQuency:EXPected[1 ︱ ︱ ︱ ︱2︱ ︱ ︱ ︱3] <numeric value> [HZ]
Sets or queries the approximate value of the frequency for the input signal in Frequency,
Period, Frequency ratio, Phase and Duty cycle measurements. The frequency range is 0.1
to 225E6 Hz for channel 1 and 2, 100E6 to 3E9 Hz for channel 3 (option 030) and 200E6
to 5E9 Hz for channel 3 (option 050).
Return
Numeric data transferred as ASCII byte in <NR3> format with fifteen significant
digits.
Notes
This actual result must be within 10% of this approximate value.
Providing this value will shorten the preparation time, accelerate the measurements
and help get more accurate results.
When [:SENS]:FREQ:EXP[1 ︱2︱3] is ON, Not A Number 9.91E37 will be returned
and error -221 will be generated.
Save/recall operation does not apply on this value.
[:SENSe]:FREQuency:EXPected[1 ︱ ︱ ︱ ︱2︱ ︱ ︱ ︱3]:AUTO ON
Configures the counter to determine the frequency of the input signal as a
pre-measurement step for Period, Frequency, Phase, Duty cycle and Frequency ratio
measurements. It also queries the state of this pre-measurement.
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