BNC 1105 Universal Counter - Manual (Page 131)

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specified value. When they are specified in voltage, auto-trigger is disabled and the
trigger level is the specified value.
<lower_reference> default 10 pct
Percent range 0 to 100 pct
Percent resolution 10%
Voltage range -5.125V to 5.125V for ×1 attenuation
-51.25V to 51,25V for ×10 attenuation
Voltage resolution
0.0025V for ×1 attenuation
0.025V for ×10 attenuation
<upper_reference> default 90 pct
Percent range 0 to 100 pct
Percent resolution 10%
Voltage range -5.125V to 5.125V for ×1 attenuation
-51.25V to 51,25V for ×10 attenuation
Voltage resolution
0.0025V for ×1 attenuation
0.025V for ×10 attenuation
<source list> default (@1)
range (@1)
:MEASure[:SCALar][:VOLTage]:FREQuency?
[<expected_value> [,<resolution>]][,(@1)|(@2)|(@3)]
Sets the measurement arming to “digits” and measures the frequency.
The <expected value> and <resolution> parameters are used to configure the number of digits
of resolution arming setting.
The Channel 1 and Channel 2 share the same trigger setting so that the measurement channel
has auto-trigger enabled at 50% with a positive slope.
<expected value>
Ch1, Ch2
default 10 MHz
Range 0.100 Hz to 500 MHz
Resolution <expected value> should be within 10% of input frequency
for optimum arming configuration
<expected value>
Ch3
Default 500 MHz
Range 375 MHz to 6GHz
Resolution <expected value> should be within 10% of input frequency
for optimum arming configuration
<resolution>
Ch1, Ch2
Default Value which indicates 4 digits of resolution for the specified
<expected value>
Range 1E-16 Hz ~ 1E6 Hz (15 to 3 digits of resolution)