Key Topic 11: Frequency

Question 1

3-11B1: What is the most the actual transmit frequency could differ from a reading of 462,100,000 Hertz on a frequency counter with a time base accuracy of ± 0.1 ppm?

A. 46.21 Hz.
B. 0.1 MHz.
C. 462.1 Hz.
D. 0.2 MHz.

Answer 1

A. 46.21 Hz.

Question 2

3-11B2: The second harmonic of a 380 kHz frequency is:

A. 2 MHz.
B. 760 kHz.
C. 190 kHz.
D. 144.4 GHz.

Answer 2

B. 760 kHz.

Question 3

3-11B3: The frequency that is 2 octaves higher than 1000 Hz is:

A. 4000 Hz.
B. 5000 Hz.
C. 2000 Hz.
D. 3000 Hz.

Answer 3

A. 4000 Hz.

Question 4

3-11B4: What is the most the actual transmitter frequency could differ from a reading of 156,520,000 hertz on a frequency counter with a time base accuracy of ± 1.0 ppm?

A. 165.2 Hz.
B. 15.652 kHz.
C. 156.52 Hz.
D. 1.4652 MHz.

Answer 4

C. 156.52 Hz.

Question 5

3-11b5: What is the most the actual transmitter frequency could differ from a reading of 156,520,000 Hertz on a frequency counter with a time base accuracy of ± 10 ppm?

A. 146.52 Hz.
B. 1565.20 Hz.
C. 10 Hz.
D. 156.52 kHz.

Answer 5

B. 1565.20 Hz.

Question 6

3-11B6: What is the most the actual transmitter frequency could differ from a reading of 462,100,000 hertz on a frequency counter with a time base accuracy of ± 1.0 ppm?

A. 46.21 MHz.
B. 10 Hz.
C. 1.0 MHz.
D. 462.1 Hz.

Answer 6

D. 462.1 Hz.