The most efficient RF power amplifier is which class amplifier? A) B B) C C) AB D) A Test Content FDM is an analog multiplexing technique that combines signals. A digital B analog C discrete D both analog and digital A cable TV (NTSC) service uses a single coaxial cable with a bandwidth of 860 MHz to transmit multiple TV signals to subscribers. How many channels can be carried? A 150 B 123 C) 100 D) 143 Test ContentThe collector current in class C amplifier is a A sine waves B square wave half sine waves D) pulse 1 Point A supergroup in an analog carrier system (AT&T) is composed of channels. A 60 B 100 C) 40 D) 160 1 Point Question 55 1 Point A class C amplifier has a supply voltage of 24 V and a collector current of 3.5 A. its efficiency is 85 percent. The RF output power is