Exam 7: Communications Techniques

The tuned circuit prior to the mixer is often referred to as the

Determine the sensitivity of a receiver with a 5 MHz bandwidth, 25 dB noise figure, and S/N of 40 dB

The input power range over which the receiver or amplifier provides a useful output is known as

The process of stepping down the RF signal to a first IF frequency and then mixing down again to a second IF signal is known as:

Circuitry used to minimize noise output that occurs when tuning between stations is known as:

Up-conversion is:

Determine the S/N for a receiver with a 10 MHz bandwidth, a 20 dB noise figure, and a sensitivity of -60 dBm.

A transceiver is

The ability of an FM receiver to totally mute the receiver audio output except for when a carrier is received is known as:

Which of the following is not considered man-made noise?

This is an unwanted component of an electronic circuit that is a byproduct of fabrication, component assembly, or both.

The S meter is often found in which of the following circuits?

If the above system had a +5dBm third order intercept point, determine its dynamic range

What is the purpose of an RF choke?

An AGC that does not provide any gain reduction until some arbitrary signal level is attained and therefore has no gain reduction for weak signals is known as:

A receiver has a 30 dB noise figure, a 1.5 MHz bandwidth, a 6 dBm third intercept point, and a 3 dB signal-to-noise ratio. Its dynamic range is: