A-003-04: Crystal calibrator, marking generator, frequency counter
A-003-04-01:
What does a frequency counter do?
It makes frequency measurements
It measures frequency deviation
It generates broad-band white noise for calibration
It produces a reference frequency
A-003-04-02:
What factors limit the accuracy, frequency response and stability of a frequency counter?
Time base accuracy, speed of the logic, and time base stability
Time base accuracy, temperature coefficient of the logic and time base stability
Number of digits in the readout, speed of the logic, and time base stability
Number of digits in the readout, external frequency reference and temperature coefficient of the logic
A-003-04-03:
How can the accuracy of a frequency counter be improved?
By increasing the accuracy of the time base
By using slower digital logic
By using faster digital logic
By improving the accuracy of the frequency response
A-003-04-04:
If a frequency counter with a time base accuracy of +/- 0.1 PPM reads 146 520 000 Hz, what is the most that the actual frequency being measured could differ from that reading? (PPM = parts per million)
14.652 Hz
0.1 MHz
1.4652 Hz
1.4652 kHz
A-003-04-05:
If a frequency counter, with a time base accuracy of 10 PPM reads 146 520 000 Hz, what is the most the actual frequency being measured could differ from that reading? (PPM = parts per million)
1465.2 Hz
146.52 Hz
146.52 kHz
1465.2 kHz
A-003-04-06:
The clock in a frequency counter normally uses a:
crystal oscillator
self-oscillating Hartley oscillator
mechanical tuning fork
free-running multivibrator
A-003-04-07:
The frequency accuracy of a frequency counter is determined by:
the characteristics of the internal time-base generator
the size of the frequency counter
type of display used in the counter
the number of digits displayed
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