(L)3-77 Specialized instruments

Question 1

A(n) ____ and ____ can be combined to measure the characteristics of transmission lines. Such an arrangement is known as a time-domain reflectometer (TDR).

Answer 1

Oscilloscope, pulse generator.

Question 2

What does the horizontal axis of a spectrum analyzer display?

Answer 2

Frequency

Question 3

What does the vertical axis of a spectrum analyzer display?

Answer 3

Amplitude

Question 4

What instrument is most accurate when checking antennas and transmission lines at the operating frequency of the antenna?

Answer 4

Frequency domain reflectometer.

Question 5

What test instrument can be used to display spurious signals in the output of a radio transmitter?

Answer 5

A spectrum analyzer.

Question 6

What instrument is commonly used by radio service technicians to monitor frequency, modulation, check receiver sensitivity, distortion, and to generate audio tones?

Answer 6

Service monitor.