Exam 5: Transmitters

What term describes amplifiers intended to produce intermediate levels of power amplification?

The electronic circuitry used to increase the operating frequency of a transmitter up to a specified value is called the_____________.

A(n) ____________ AM signal will usually cause a change in dc current flow.

To where does the transmitter deliver its power?

FM transmitters are composed of oscillators,amplifiers,modulating stages,and ____________.

The ___________ of SSB generation relies on the fact that the upper and lower sidebands of an AM signal differ in the sign of their phase angles.

What term is used to denote the circuitry that generates the modulated signal?

Which of the following is an FM system utilizing direct generation with AFC?

Which of the following is a problem for all RF amplifiers (linear and class C)both tube-based and solid state?

An unwanted sideband can be suppressed by either the filter method or the ________ method.

In a reactance modulator,a transistor is effectively made to function as a(n)______________.

The oscillator that generates the carrier signal will be crystal-controlled to maintain the high accuracy required by the _______________.

A direct FM system is one in which the frequency of the carrier oscillator is directly varied by the ___________.

What is transmitter troubleshooting in the frequency domain heavily reliant on?

The ___________ amplifier provides a high-impedance load for the oscillator to minimize drift or undesired frequency shift as a result of circuit-loading effects.

In what application are vacuum tubes still found in electronic communications?

What is a balanced modulator an example of?

What usually causes downward modulation?

The modulation process is accomplished in a(n)________________.

What will a standard oscilloscope display of the transmitted AM signal indicate?