In each of the following exercises, select the ONE answer that BEST completes
the statement or answers the question.
Indicate your solution by circling the
letter opposite the correct answer in the subcourse booklet.
The speed at which a radio wave travels through space is approximately
186,000 miles per second.
300,000 miles per second.
186,000,000 miles per minute.
300,000,000 miles per minute.
radio is 3 MHz?
Most tactical radios operate in a frequency range from approximately
16 Hz to 16 kHz.
1.5 MHz to 400 MHz.
16 kHz to 400 MHz.
300 MHz to 3,000 MHz.
A vertical antenna that uses the earth as one-half of its length is known
5. What method should you
Key the power amplifier.
Operate in a high-frequency band.
6. Frequency stabilization in the AM radiotelephone transmitter in figure 2-
9 is accomplished by