What width is the pulse radiated by fire-control tracking radar?

Description : What type of transmission is radiated from an aircraft’s radio altimeter antenna? A. An amplitude modulated continuous wave B. A pulse position modulated UHF signal C. A differential phase shift keyed UHF signal D. A frequency modulated continuous wave

Last Answer : D. A frequency modulated continuous wave

Which of the two types of automatic gain control, agc or iagc, is most effective in radar use for the Navy?

Description : Which of the two types of automatic gain control, agc or iagc, is most effective in radar use for the Navy?

Last Answer : IAGC.

When a wavefront is radiated into a waveguide, what happens to the portions of the wavefront that do not satisfy the boundary conditions?

Description : When a wavefront is radiated into a waveguide, what happens to the portions of the wavefront that do not satisfy the boundary conditions?

Last Answer : Decrease to zero.

What are three ways of controlling radiated emi during transmission?

Description : What are three ways of controlling radiated emi during transmission?

Last Answer : a) physical separation of the antenna (b) limiting bandwidth of the antenna (c) use of directional antennas

If a target is on the bearing axis of the radiated beam, what is the input to the bearing IF channel?

Description : If a target is on the bearing axis of the radiated beam, what is the input to the bearing IF channel?

Last Answer : Zero.

What characteristic(s) of radiated energy is (are) altered to achieve electronic scanning?

Description : What characteristic(s) of radiated energy is (are) altered to achieve electronic scanning?

Last Answer : Frequency or phase.

What is the polarization of the energy radiated by a vertical slot?

Description : What is the polarization of the energy radiated by a vertical slot?

Last Answer : Horizontal.

How many major lobes are radiated by a parabolic reflector?

Description : How many major lobes are radiated by a parabolic reflector?

Last Answer : One

What is the term that is used to describe narrowness in the radiated beam of an antenna?

Description : What is the term that is used to describe narrowness in the radiated beam of an antenna?

Last Answer : Antenna directivity.

Radar is used for (a) Detecting objects by using light waves (b) Reflecting sound waves to detect objects (c) Determining the presence and location of objects with radio waves (d) Tracking rain-bearing clouds

Description : Radar is used for (a) Detecting objects by using light waves (b) Reflecting sound waves to detect objects (c) Determining the presence and location of objects with radio waves (d) Tracking rain-bearing clouds

Last Answer : Ans:(b)

What minimum/maximum voltage level can be attained in the pulse generator section by adjusting the LEVEL control?

Description : What minimum/maximum voltage level can be attained in the pulse generator section by adjusting the LEVEL control?

Last Answer : 0 to 5 volts.

Which of the following systems is not used in radio detection and ranging? A. Frequency shift B. Frequency modulation C. Pulse radar D. Amplitude modulation

Description : Which of the following systems is not used in radio detection and ranging? A. Frequency shift B. Frequency modulation C. Pulse radar D. Amplitude modulation

Last Answer : D. Amplitude modulation

A pulse radar has a pulse repetition frequency (PRF) of 3 KHz. If the radar is emitting at 10 GHz, what is the

Description : A pulse radar has a pulse repetition frequency (PRF) of 3 KHz. If the radar is emitting at 10 GHz, what is the maximum unambiguous range for this radar? A) 5 Km B) 5 m C) 50 Km D) 15 m

Last Answer : A pulse radar has a pulse repetition frequency (PRF) of 3 KHz. If the radar is emitting at 10 GHz, what is the maximum unambiguous range for this radar? A) 5 Km B) 5 m C) 50 Km D) 15 m

A pulse compression radar transmits an encoded pulse having a frequency chirp from 990 MHz to 1010 MHz

Description : A pulse compression radar transmits an encoded pulse having a frequency chirp from 990 MHz to 1010 MHz centred around 1 GHz. The range resolution capability of this radar is A) 7.5 m B) 7.5 Km C) 75 m D) 750 m

Last Answer : A pulse compression radar transmits an encoded pulse having a frequency chirp from 990 MHz to 1010 MHz centred around 1 GHz. The range resolution capability of this radar is 7.5 m

For C band Synthetic Aperture Radar (SAR) with Doppler band width of 1300 Hz, the coherence length loch is: (A) 130 km (B) 230 km (C) 250 km (D) 500 km

Description : For C band Synthetic Aperture Radar (SAR) with Doppler band width of 1300 Hz, the coherence length loch is: (A) 130 km (B) 230 km (C) 250 km (D) 500 km

Last Answer : Answer: Option B

What is pulse-width modulation (PWM) in Arduino?

Description : What is pulse-width modulation (PWM) in Arduino?

Last Answer : Pulse-width modulation (PWM) in Arduino is a technique used to control the brightness of an LED or the speed of a motor by varying the duty cycle of a digital signal.

What is a pulse-width modulation (PWM) signal in Arduino?

Description : What is a pulse-width modulation (PWM) signal in Arduino?

Last Answer : A PWM signal in Arduino is a digital signal that varies the width of the pulse to simulate an analog signal.

What is Pulse Width Modulation?

Description : What is Pulse Width Modulation?

Last Answer : Ans-Pulse width modulation is a modulation technique in which the width of the pulse is varied in accordance with the message signal. Pulse width Modulation is abbreviated as PWM. PWM can be used ... the pulse train and recover an average analog waveform. PWM is used in sound synthesis circuits.

It indicates what signal frequencies can be propagated through a given distance of fiber cable. ∙ A. Bandwidth Distance Product ∙ B. Pulse width dispersion ∙ C. Rise time ∙ D. Cutoff frequency

Description : It indicates what signal frequencies can be propagated through a given distance of fiber cable. ∙ A. Bandwidth Distance Product ∙ B. Pulse width dispersion ∙ C. Rise time ∙ D. Cutoff frequency

Last Answer : A. Bandwidth Distance Product

The width of the vertical sync pulse in the Philippine TV system is

Description : The width of the vertical sync pulse in the Philippine TV system is

Last Answer : 3H

The width of the vertical sync pulse in the Philippine TV system is

Description : The width of the vertical sync pulse in the Philippine TV system is

Last Answer : 3H

Pulse width modulation may be generated:

Description : Pulse width modulation may be generated:

Last Answer : with a monostable multivibrator

A pulse modulation technique as the width of a constant amplitude pulse is varied proportional to the amplitude of the analog signal at the time the signal is sampled.

Description : A pulse modulation technique as the width of a constant amplitude pulse is varied proportional to the amplitude of the analog signal at the time the signal is sampled.

Last Answer : PWM, PLM, PDM

For the most Static RAM the write pulse width should be at least a) 10ns b) 60ns c) 300ns d) 1μs

Description : For the most Static RAM the write pulse width should be at least a) 10ns b) 60ns c) 300ns d) 1μs

Last Answer : b) 60ns

An eight stage ripple counter uses a flip-flop with propagation delay of 75 nanoseconds. The pulse width of the strobe is 50ns. The frequency of the input signal which can be used for proper operation of the counter is approximately (A) 1 MHz. (B) 500 MHz. (C) 2 MHz. (D) 4 MHz.

Description : An eight stage ripple counter uses a flip-flop with propagation delay of 75 nanoseconds. The pulse width of the strobe is 50ns. The frequency of the input signal which can be used for proper operation of the counter is approximately (A) 1 MHz. (B) 500 MHz. (C) 2 MHz. (D) 4 MHz.

Last Answer : Maximum time taken for all flip-flops to stabilize is 75ns x 8 + 50 = 650ns. Frequency of operation must be less than 1/650ns = 1.5 MHz.

In single pulse modulation of PWM inverters, third harmonic can be eliminated if pulse width is

Description : In single pulse modulation of PWM inverters, third harmonic can be eliminated if pulse width is equal to (a) 30o (b) 60o (c) 120o (d) 150o

Last Answer : In single pulse modulation of PWM inverters, third harmonic can be eliminated if pulse width is equal to 120o

A 3 -stage ripple counter has Flip Flop with propagation delay of 25 nsec and pulse width of strobe input 10

Description : A 3 -stage ripple counter has Flip Flop with propagation delay of 25 nsec and pulse width of strobe input 10 nsec. Then the maximum operating frequency at which counter operates reliably is

Last Answer : A 3 -stage ripple counter has Flip Flop with propagation delay of 25 nsec and pulse width of strobe input 10 nsec. Then the maximum operating frequency at which counter operates reliably is 12.67 MHz

A pulse waveform has a high time of 8 ms and a pulse width of 32 ms. The duty - cycle is equal to:

Description : A pulse waveform has a high time of 8 ms and a pulse width of 32 ms. The duty - cycle is equal to: A. 25% B. 50% C. 1% D. 100%

Last Answer : A pulse waveform has a high time of 8 ms and a pulse width of 32 ms. The duty - cycle is equal to: 25%

What is mean by pulse width modulation?

Last Answer : PWM means the width of pulse signal can be varied by varying ton & tOFF.

. What is the normal source of dry air for a radar system?

Description : . What is the normal source of dry air for a radar system?

Last Answer : Ship's central dry-air system

The peak power of a radar depends on the interrelationship of what other factors?

Description : The peak power of a radar depends on the interrelationship of what other factors?

Last Answer : Average power, pulse width, and prt.

The ideal radar spectrum has what relationship to the carrier frequency?

Description : The ideal radar spectrum has what relationship to the carrier frequency?

Last Answer : Symmetrical above and below the carrier frequency.

What IF frequencies are normally used in radar receivers

Description : What IF frequencies are normally used in radar receivers

Last Answer : Thirty or sixty megahertz.

What type of receiver is most often used in radar systems?

Description : What type of receiver is most often used in radar systems?

Last Answer : Superheterodyne.

What type of modulator is most commonly used in modern radar systems?

Description : What type of modulator is most commonly used in modern radar systems?

Last Answer : Line-pulsed.

What type of modulator is most commonly used in modern radar systems?

Description : What type of modulator is most commonly used in modern radar systems?

Last Answer : Line-pulsed.

In an externally synchronized radar, what determines the prr of the transmitter?

Description : In an externally synchronized radar, what determines the prr of the transmitter?

Last Answer : The master oscillator.

What type of multivibrator can be used as a radar master oscillator?

Description : What type of multivibrator can be used as a radar master oscillator?

Last Answer : Free-running.

A self-synchronized radar system obtains timing trigger pulses from what source?

Description : A self-synchronized radar system obtains timing trigger pulses from what source?

Last Answer : Transmitter.

What is the purpose of the majority of circuits in a radar system?

Description : What is the purpose of the majority of circuits in a radar system?

Last Answer : Timing and control.

What is the purpose of the synchronizer in a radar system?

Description : What is the purpose of the synchronizer in a radar system?

Last Answer : Controls system operation and timing.

Which of the two general classes of antennas is most often used with radar?

Description : Which of the two general classes of antennas is most often used with radar?

Last Answer : Directional.

What radar scope uses a range step for range measurement?

Description : What radar scope uses a range step for range measurement?

Last Answer : The A scope.

anonymous · Answer 1 · 2021-08-20T15:46:18+0000

Answer :

Very narrow.

answered Aug 20, 2021 by anonymous

What width is the pulse radiated by fire-control tracking radar?

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