Radio Transmitters

Which of the following circuits is not typically part of every radio transmitter?

• carrier oscillator

• driver amplifier

• mixer

• final power amplifier

Class C amplifiers are not used in which type of transmitter?

• AM

• SSB

• CW

• FM

The maximum power of typical transistor RF power amplifiers is in what range?

• Milliwatts

• Watts

• Hundreds of Watts

• Kilowatts

Neutralization is the process of

• cancelling the effect of internal device capacitance

• bypassing undesired Alternating Current

• reducing gain

• eliminating harmonics

Maximum power transfer occurs when the generator impedance Z_i is equal to the load impedance Z_l

• True

• False

Which of the following is not a benefit of a toroid RF inductor?

• no shielding required

• fewer turns of wire

• higher Q (gain)

• self-supporting

Impedance matching in a broadband linear RF amplifier is handled with a(n)

• L network

• Parallel tuned circuit

• Pi network

• Balun

Which of the following is not a benefit of speech-processing circuits?

• improved frequency stability

• increased average output power

• limited bandwidth (BW)

• Prevention of overmodulation

In an AM transmitter, a clipper circuit eliminates

• harmonics

• splatter

• overdeviation

• excessive gain

In a speech-processing circuit, a low-pass filter prevents

• overdeviation

• overmodulation

• high gain

• excessive signal bandwidth (BW)