... answers to USAFI. 1. An audio frequency signal has a high frequency. has a low frequency. is called a carrier signal. . travels as a sky wave. none of the above. ... In tuning a radio, you turn a. a coil. b. a rectifier. c. a variable capacitor. d. ananbsp;...
|Title||:||Study Guide for General Science II|
|Author||:||Donald N. Niederkorn|