Exam 6: Frequency Modulation: Reception

Why do most quality FM receivers employ FETs in their RF amplifiers?

A form of receiver noise called cross modulation is caused by

The measure of how much signal is required in an FM receiver to produce a specific level of quieting is referred to as:

Input into the PLL is at the:

The minimum required voltage for limiting is called

When a PLL is set up as an FM detector, the input FM signal is applied to the input of

In an FM stereo receiver, why is there a frequency doubler stage in the stereo demodulation section?

In FM reception, the circuitry used to extract the intelligence from the carrier is:

The term "quadrature" in a quadrature detector refers to:

Which of the following does not occur in a limiter stage found in an FM receiver?

Which of the following FM detectors is a classical design dating back to vacuum tube technology?

A limiter stage in an FM receiver functions to

In an FM stereo receiver, what is the purpose of the AM detector stage?

A PLL is set up so that its VCO free-runs at 8.9 MHz. The VCO does not change frequency unless its input is within plus or minus 75 kHz of 8.9 MHz. After it does lock, the input frequency can be adjusted within plus or minus 120 kHz of 8.9 MHz without having the PLL start to free-run again. The tracking range of the PLL is:

A standard IF frequency in FM receivers is:

Which of the following stages is not a building block of a phase-lock loop?

The ratio detector design is superior to the Foster-Seely design in that:

In an FM stereo receiver, what is the purpose of the matrix network?

The FM detector that can be implemented using digital exclusive-or gates is the

When a PLL is set up as an FM detector, the output intelligence signal appears at the output of