Communications

Zero beat is also known as ________

The _____ gain for a PLL is simply the product of the individual gains or transfer function for the loop

Non-coherent detection is also known as _____________

IF section is also known as

The difference between the actual local oscillator frequency and the desired frequency is called ________

What technique is used to prevent tracking error?

In the phasing method of SSB generation, one sideband is cancelled due out to

It is a high-performance microwave receiver required at the input stage of the RF section to optimize their noise figure.

Which of the ff is NOT the other name of a balanced modulator?

Low-noise RF amplifiers uses what type of biasing?

The most common technique used for coupling IF amplifiers

Type of coupling where the secondary voltage is relatively low and the bandwidth is narrow

Type of coupling which has a high gain and broad bandwidth

It is the point where the reflected resistance is equal to primary resistance and the Q of the primary tank circuit is halved and the bandwidth is doubled

It is caused by the reactive element of the reflected impedance being significant enough to change the resonant frequency of the primary tuned circuit

A type of detector that detects the shape of the input envelope

A section of an audio stage of a receiver that removes sporadic, high-amplitude noise transients of short duration, such as impulse noise.

A circuit that detects the occurence of a high-amplitude, short duration noise spike then mutes the receiver by shutting off a portion of the receiver of the duration of the pulse

With high-gain selective amplifiers that are stable and easily neutralized, what is the desired value of intermediate frequency?

It is defined as the ratio of the demodulated signal level at the output receiver to the RF signal level at the input to the receiver