Define capture range of PLL.

Define capture range of PLL.
by

1 Answer

Answer :

The range of frequencies over which the PLL can acquire lock with an input signal is called the capture range. It is expressed as a percentage of the VCO free running frequency.
by

Related questions

Define lock-in range of a PLL.

Description : Define lock-in range of a PLL.

Last Answer : The range of frequencies over which the PLL can maintain lock with the incoming signal is called the lock-in range or tracking range. It is expressed as a percentage of theVCO free running frequency.

Discuss the effect of having large capture range.

Description : Discuss the effect of having large capture range.

Last Answer : The PLL cannot acquire a signal outside the capture range, but once captured, it will hold on till the frequency goes beyond the lock-in range.Thus , to increase the ability of lock range, ... required.But, a large capture range will make the PLL more susceptible to noise and undesirable signal. 

Which of the following is the basic synthesizer circuit? A. Frequency divider B. Frequency multiplier C. PLL D. Mixer

Description : Which of the following is the basic synthesizer circuit? A. Frequency divider B. Frequency multiplier C. PLL D. Mixer

Last Answer : C. PLL

Mention some typical applications of PLL

Description : Mention some typical applications of PLL

Last Answer : • Frequency multiplication/division • Frequency translation • AM detection • FM demodulation • FSK demodulation.

What is the purpose of having a low pass filter in PLL?

Description : What is the purpose of having a low pass filter in PLL?

Last Answer : *It removes the high frequency components and noise. *Controls the dynamic characteristics of the PLL such as capture range, lock-in range,band-width and transient response. *The charge on the filter capacitor gives a short- time memory to the PLL

What are the three stages through which PLL operates?

Description : What are the three stages through which PLL operates?

Last Answer : 1.Free running 2.Capture 3.Locked/ tracking

Mention some areas where PLL is widely used.

Description : Mention some areas where PLL is widely used.

Last Answer : 1.Radar synchronizations 2. Satellite communication systems 3. Air borne navigational systems 4. FM communication systems 5.Computers.

List the basic building blocks of PLL

Description : List the basic building blocks of PLL

Last Answer : 1.Phase detector/comparator 2.Low pass filter 3.Error amplifier 4.Voltage controlled oscillator

Shortening effect of an antenna that makes it appear as if it were 5% longer. A. End effect B. Flywheel effect C. Skin effect D. Capture effect

Description : Shortening effect of an antenna that makes it appear as if it were 5% longer. A. End effect B. Flywheel effect C. Skin effect D. Capture effect

Last Answer : A. End effect

What is the capture area of a dipole operated at 75 MHz? A. 4 mm B. 2 m2 C. 2.088 m2 D. 4.088 m2

Description : What is the capture area of a dipole operated at 75 MHz? A. 4 mm B. 2 m2 C. 2.088 m2 D. 4.088 m2

Last Answer : C. 2.088 m2

With which emission type is the capture-effect most pronounced? A. CW B. FM C. SSB D. AM

Description : With which emission type is the capture-effect most pronounced? A. CW B. FM C. SSB D. AM

Last Answer : B. FM

ECE Board Exam March 1996 The capture area of an antenna is directly proportional to the A. frequency of the received signal B. distance between transmitter and receiver C. gain of the antenna D. power density of the signal

Description : ECE Board Exam March 1996 The capture area of an antenna is directly proportional to the A. frequency of the received signal B. distance between transmitter and receiver C. gain of the antenna D. power density of the signal

Last Answer : C. gain of the antenna

Write the Abbreviation for the following File Extension 1. FMB 2. MMB 3. PLL?

Description : Write the Abbreviation for the following File Extension 1. FMB 2. MMB 3. PLL?

Last Answer : FMB ----- Form Module Binary. MMB ----- Menu Module Binary. PLL ------ PL/SQL Library Module Binary.

Draw and explain PLL as an FM demodulator.

Description : Draw and explain PLL as an FM demodulator.

Last Answer : Explanation:- FM signal which is to be demodulated is applied to input of PLL.VCO output must be identical to input signal if PLL is to remain locked. As PLL is locked, VCO ... error voltage represents the modulating signal. Thus at the error amplifier output we get demodulated FM output.

Draw and label PLL based FM detector.

Description : Draw and label PLL based FM detector.

Last Answer : Draw and label PLL based FM detector.

What is PLL? Explain its operation with a block diagram.

Description : What is PLL? Explain its operation with a block diagram.

Last Answer : PLL - A phase-locked loop or phase lock loop is a control system that generates an output signal whose phase is related to the phase of an input signal Block diagram  ... to the input frequency. The phase - locked loop goes through three states free running capture and phase lock.

Draw block diagram of PLL as a FM demodulator. Explain function of each block.

Description : Draw block diagram of PLL as a FM demodulator. Explain function of each block.

Last Answer : Operation:  The FM signal which is to be demodulated is applied at the input of the PLL.  the PLL is locked to the FM  The error voltage produced at ... using PLL ensures a high Linearity, between the instantaneous input frequency and VCO control voltage (error amplifier output)

In a PLL, lock occurs when the

Description : In a PLL, lock occurs when the (A) input frequency and the VCO frequency are the same (B) Phase error is 1800 (C) VCO frequency is double the input frequency (D) Phase error is 900

Last Answer : In a PLL, lock occurs when the input frequency and the VCO frequency are the same

Which of the following applications include a phase-locked loop (PLL) circuit?

Description : Which of the following applications include a phase-locked loop (PLL) circuit?  (1) Modems (2) AM decoders (3) Tracking filters (4) All of these 

Last Answer : All of these.

A phase-locked loop (PLL) is a feedback circuit consisting of a

Last Answer : A phase-locked loop (PLL) is a feedback circuit consisting of a phase detector, low-pass filter, VCO.

Which laser emits light in the visible range 400 to 700 nm? a. Argon-ion b. Nitrogen c. Carbon-dioxide d. Neodymium-YAG

Description : Which laser emits light in the visible range 400 to 700 nm? a. Argon-ion b. Nitrogen c. Carbon-dioxide d. Neodymium-YAG

Last Answer : a. Argon-ion

Is the width of the range of wavelengths emitted by the light source a. Bandwidth b. Chromatic Dispersion c. Spectral width d. Beamwidth

Description : Is the width of the range of wavelengths emitted by the light source a. Bandwidth b. Chromatic Dispersion c. Spectral width d. Beamwidth

Last Answer : c. Spectral width

What is antenna bandwidth? A. Antenna length divided by the number of elements B. The angle between the half-power radiation points C. The angle formed between two imaginary lines drawn through D. The frequency range over which an antenna can be expected to operate satisfactorily

Description : What is antenna bandwidth? A. Antenna length divided by the number of elements B. The angle between the half-power radiation points C. The angle formed between two imaginary lines drawn through D. The frequency range over which an antenna can be expected to operate satisfactorily

Last Answer : D. The frequency range over which an antenna can be expected to operate satisfactorily

In what range of frequencies are most omnidirectional horizontally polarized antennas used? A. VHF, UHF B. VLF, LF C. SH, EHF D. MF, HF

Description : In what range of frequencies are most omnidirectional horizontally polarized antennas used? A. VHF, UHF B. VLF, LF C. SH, EHF D. MF, HF

Last Answer : A. VHF, UHF

What is the frequency range of C-band? A. 8.5 to 12.5 GHz B. 3.4 to 6.425 GHz C. 12.95 to 14.95 GHz D. 27.5 to 31 GHz

Description : What is the frequency range of C-band? A. 8.5 to 12.5 GHz B. 3.4 to 6.425 GHz C. 12.95 to 14.95 GHz D. 27.5 to 31 GHz

Last Answer : B. 3.4 to 6.425 GHz

An amplifier operating over the frequency range of 455 to 460 kHz has a 200 kΩ input resistor. What is the RMS noise voltage at the input to this amplifier if the ambient temperature is 17˚C ? A. 40 µV B. 4.0 µV C. 400 µV

Description : An amplifier operating over the frequency range of 455 to 460 kHz has a 200 kΩ input resistor. What is the RMS noise voltage at the input to this amplifier if the ambient temperature is 17˚C ? A. 40 µV B. 4.0 µV C. 400 µV

Last Answer : B. 4.0 µV

Deemphasis in the receiver in effect attenuates modulating signal components and noise in what frequency range? A. dc B. low C. intermediate D. high

Description : Deemphasis in the receiver in effect attenuates modulating signal components and noise in what frequency range? A. dc B. low C. intermediate D. high

Last Answer : D. high

A low power, short range wireless technology designed to provide a replacement for serial cables is called ______. A. WAP B. GPRS C. Bluetooth D. EDGE

Description : A low power, short range wireless technology designed to provide a replacement for serial cables is called ______. A. WAP B. GPRS C. Bluetooth D. EDGE

Last Answer : C. Bluetooth

What is the minimum number of bits required in a PCM code for a range of 10,000? A. 12 B. 9 C. 14 D. 10

Description : What is the minimum number of bits required in a PCM code for a range of 10,000? A. 12 B. 9 C. 14 D. 10

Last Answer : C. 14

What is the approximate single-hop nighttime range of F2 layer? A. 3840 km B. 3000 km C. 4130 km D. 2350 km

Description : What is the approximate single-hop nighttime range of F2 layer? A. 3840 km B. 3000 km C. 4130 km D. 2350 km

Last Answer : C. 4130 km

What is the spectrum range of U600 mastergroup? A. 60 – 108 kHz B. 564 – 3084 kHz C. 312 – 552 kHz D. 60 -2788 kHz

Description : What is the spectrum range of U600 mastergroup? A. 60 – 108 kHz B. 564 – 3084 kHz C. 312 – 552 kHz D. 60 -2788 kHz

Last Answer : B. 564 – 3084 kHz

What noise is observable at frequencies in the range from about 8 MHz to somewhat 1.5 GHz? A. Industrial noise B. Atmospheric noise C. Space noise D. Shot noise

Description : What noise is observable at frequencies in the range from about 8 MHz to somewhat 1.5 GHz? A. Industrial noise B. Atmospheric noise C. Space noise D. Shot noise

Last Answer : C. Space noise

The approximate single-hop nighttime range of F2 layer is ____. A. 3000 km B. 3840 km C. 4130 km D. 2350km

Description : The approximate single-hop nighttime range of F2 layer is ____. A. 3000 km B. 3840 km C. 4130 km D. 2350km

Last Answer : C. 4130 km

What is the frequency range of an aircraft’s Very High Frequency (VHF) communications? A. 118.000 MHz to 136.975 MHz (worldwide up to 151.975 MHz) B. 108.000 MHz to 117.95 MHz C. 329.15 MHz to 335.00 MHz D. 2.0000 MHz to 29.999 MHz

Description : What is the frequency range of an aircraft’s Very High Frequency (VHF) communications? A. 118.000 MHz to 136.975 MHz (worldwide up to 151.975 MHz) B. 108.000 MHz to 117.95 MHz C. 329.15 MHz to 335.00 MHz D. 2.0000 MHz to 29.999 MHz

Last Answer : A. 118.000 MHz to 136.975 MHz (worldwide up to 151.975 MHz)

What is the frequency range of an aircraft’s radio altimeter? A. 962 MHz to 1213 MHz B. 329.15 MHz to 335.00 MHz C. 4250 MHz to 4350 MHz D. 108.00 MHz to 117.95 MHz

Description : What is the frequency range of an aircraft’s radio altimeter? A. 962 MHz to 1213 MHz B. 329.15 MHz to 335.00 MHz C. 4250 MHz to 4350 MHz D. 108.00 MHz to 117.95 MHz

Last Answer : C. 4250 MHz to 4350 MHz

The bending of radio waves passing over the top of a mountain range that disperses a weak portion of the signal behind the mountain is A. eddy-current phase effect B. knife-edge diffraction C. shadowing D. mirror refraction effect

Description : The bending of radio waves passing over the top of a mountain range that disperses a weak portion of the signal behind the mountain is A. eddy-current phase effect B. knife-edge diffraction C. shadowing D. mirror refraction effect

Last Answer : B. knife-edge diffraction

The range of speech power is ____. A. 1 – 10 watts B. 100 – 1000 milliwatts C. 10 – 100 milliwatts D. 10 – 1000 microwatts

Description : The range of speech power is ____. A. 1 – 10 watts B. 100 – 1000 milliwatts C. 10 – 100 milliwatts D. 10 – 1000 microwatts

Last Answer : 10 – 1000 microwatts

Assuming a UHF frequency range of 405.0125 MHz to 405.0875 MHz at 25 kHz channeling plan, how many channels can you produce? A. 2.5 ch. B. 2 ch. C. 4 ch. D. 3 ch.

Description : Assuming a UHF frequency range of 405.0125 MHz to 405.0875 MHz at 25 kHz channeling plan, how many channels can you produce? A. 2.5 ch. B. 2 ch. C. 4 ch. D. 3 ch.

Last Answer : D. 3 ch.

Assume a frequency range of 405.0125 MHz to 405.0875 MHz and 25 kHz channeling plan, determine the center frequency of the second channel from the lower limit. A. 405.030 MHz B. 405.025 MHz C. 405.050 MHz D. 405.075 MHz

Description : Assume a frequency range of 405.0125 MHz to 405.0875 MHz and 25 kHz channeling plan, determine the center frequency of the second channel from the lower limit. A. 405.030 MHz B. 405.025 MHz C. 405.050 MHz D. 405.075 MHz

Last Answer : C. 405.050 MHz

Assume a frequency range of 401.000 MHz to 401.050 MHz, if you apply 25 kHz channeling plan, determine the center frequency of the first channel from the lower limit. A. 401.010 MHz B. 401.0125 MHz C. 401.025 MHz D. 401.00625 MHz

Description : Assume a frequency range of 401.000 MHz to 401.050 MHz, if you apply 25 kHz channeling plan, determine the center frequency of the first channel from the lower limit. A. 401.010 MHz B. 401.0125 MHz C. 401.025 MHz D. 401.00625 MHz

Last Answer : B. 401.0125 MHz

If frequency range of 401.000MHz to 401.050MHz has to be channelized at 12.5 kHz between channel, what is the center of its first channel from the lower limit? A. 401.125MHz B. 401.00625MHz C. 401.025MHz D. 401.0125MHz

Description : If frequency range of 401.000MHz to 401.050MHz has to be channelized at 12.5 kHz between channel, what is the center of its first channel from the lower limit? A. 401.125MHz B. 401.00625MHz C. 401.025MHz D. 401.0125MHz

Last Answer : B. 401.00625MHz

The extremely high frequency (EHF) band is in the radio spectrum range of _______. A. 30 to 300 kHz B. 30 to 300 GHz C. 3 to 30 MHz D. 3 to 30 GHz

Description : The extremely high frequency (EHF) band is in the radio spectrum range of _______. A. 30 to 300 kHz B. 30 to 300 GHz C. 3 to 30 MHz D. 3 to 30 GHz

Last Answer : B. 30 to 300 GHz

What is the frequency range of C-band? A. 10.95 to 14.5 GHzB. 27.5 to 31 GHz C. 3.4 to 6.424 GHz D. 1.53 to 2.7 GHz

Description : What is the frequency range of C-band? A. 10.95 to 14.5 GHz B. 27.5 to 31 GHz C. 3.4 to 6.424 GHz D. 1.53 to 2.7 GHz

Last Answer : C. 3.4 to 6.424 GHz

What is meant by the term antenna bandwidth A. Antenna length divided by the number of elements. B. The angle between the half-power radiation points C. The frequency range over which and antenna can be expected to perform well D. The angle formed between two imaginary line drawn through the ends of the elements

Description : What is meant by the term antenna bandwidth A. Antenna length divided by the number of elements. B. The angle between the half-power radiation points C. The frequency range over which and antenna ... perform well D. The angle formed between two imaginary line drawn through the ends of the elements

Last Answer : C. The frequency range over which and antenna can be expected to perform well

Determine the dynamic range for a 10 bit sign magnitude code. A. 1023 B. 425 C. 511 D. 756

Description : Determine the dynamic range for a 10 bit sign magnitude code. A. 1023 B. 425 C. 511 D. 756

Last Answer : C. 511

This type of transmission permits communication in the frequency range from 30 to 60 MHz and over distances from about 1000 to 2000 km. A. Troposcatter B. Ionospheric scatter C. Ducting D. Microwave

Description : This type of transmission permits communication in the frequency range from 30 to 60 MHz and over distances from about 1000 to 2000 km. A. Troposcatter B. Ionospheric scatter C. Ducting D. Microwave

Last Answer : B. Ionospheric scatter

What is the local oscillator frequency range commercial AM broadcast if it is equal to 455 KHz. A. 540 to 1600 KHz B. 0 to 1600 KHz C. 995 to 2055 KHz D. 0 to 455 KHz

Description : What is the local oscillator frequency range commercial AM broadcast if it is equal to 455 KHz. A. 540 to 1600 KHz B. 0 to 1600 KHz C. 995 to 2055 KHz D. 0 to 455 KHz

Last Answer : C. 995 to 2055 KHz

Type of transmission path that permits communication in the frequency range from 30 to 60 MHz and over distances form about 1000 to 2000 km. A. Ducting B. Ionospheric scatter C. Microwave D. Troposcatter

Description : Type of transmission path that permits communication in the frequency range from 30 to 60 MHz and over distances form about 1000 to 2000 km. A. Ducting B. Ionospheric scatter C. Microwave D. Troposcatter

Last Answer : B. Ionospheric scatter

A carrier signal has ______. A. Constant peak amplitude B. The information C. Frequency range 20-20000 Hz D. A varying amplitude

Description : A carrier signal has ______. A. Constant peak amplitude B. The information C. Frequency range 20-20000 Hz D. A varying amplitude

Last Answer : A. Constant peak amplitude

The midrange frequency range of sound is from A. 256 to 2048 Hz B. 2048 to 4096 Hz C. 512 to 2048 Hz D. 16 to 64 Hz

Description : The midrange frequency range of sound is from A. 256 to 2048 Hz B. 2048 to 4096 Hz C. 512 to 2048 Hz D. 16 to 64 Hz

Last Answer : A. 256 to 2048 Hz