Communications

The ratio detector is superior to the slope detector because

One implementation of a pulse-averaging discriminator is

A 10% increase in the frequency of a constant-width pulse train should cause what change in its average value?

Two different signals can be coherent if they

A quadrature detector requires that

Identify an advantage , or advantages, of a properly designed FM system.

If the unmodulated level peak carrier amplitude is doubled in an AM signal, the percent modulation is ___________.

A single-tone amplitude modulated wave has _________.

It is the width of frequencies within the spectrum occupied by a signal and used by the signal for conveying information.

__________ is a kind of modulation in which the modulated wave is always present.

A type of modulation in which no signal is present between pulses.

What describes the amount of amplitude change present in an AM waveform?

__________ is a form of amplitude distortion introduced when the positive and negative alternations in the AM modulated signals are not equal.

What is the advantage of phase modulation over direct FM frequency modulation?

If the spectrum is shifted in frequency with no other changes, this is known as

If the frequency of each component in a signal spectrum is increased by the same fixed amount, this is known as

A particular amplifier circuit used for frequency doubling.

Frequency division is useful in the implementation of a

Identify an electronic device, not specifically designed for the purpose, which can be used as a phase detector.

A particular frequency synthesizer contains only a single crystal. What words describe this synthesizer?