The frequency modulated (FM) radio frequency range is nearly

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The frequency modulated (FM) radio frequency range is nearly 90 - 105 MHz.

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What is meant by the term modulation index? A. The processor index. B. The ratio between the deviation of a frequency modulated signal and the modulating frequency. C. The FM signal-to-noise ratio. D. The ratio of the maximum carrier frequency deviation to the highest audio modulating frequency.

Description : What is meant by the term modulation index? A. The processor index. B. The ratio between the deviation of a frequency modulated signal and the modulating frequency. C. The FM signal-to-noise ratio. D. The ratio of the maximum carrier frequency deviation to the highest audio modulating frequency.

Last Answer : B. The ratio between the deviation of a frequency modulated signal and the modulating frequency.

In FM, frequency of modulated wave varies with A. amplitude B. time C. wavelength D. energy

Description : In FM, frequency of modulated wave varies with A. amplitude B. time C. wavelength D. energy

Last Answer : time

In_____ transmission, the frequency of the carrier signal is modulated to follow the changing voltage level (amplitude)of the modulating signal. The peak amplitude and phase of the carrier signal remainconstant,but as the amplitudeof the information signal changes, thefrequency of thecarrier changes correspondingly. A) AM B) PM C) FM D) none of the above

Description : In_____ transmission, the frequency of the carrier signal is modulated to follow the changing voltage level (amplitude)of the modulating signal. The peak amplitude and phase of the carrier signal remainconstant,but as ... of thecarrier changes correspondingly. A) AM B) PM C) FM D) none of the above

Last Answer : FM

What frequency range is used for FM radio transmission? A. Very Low Frequency : 3 kHz to 30. kHz B. Low Frequency :30 kHz to 300 kHz C. High Frequency :3 MHz to 30 MHz D. Very High Frequency : 30 MHz to 300 MHz E. None of the above

Description : What frequency range is used for FM radio transmission? A. Very Low Frequency : 3 kHz to 30. kHz B. Low Frequency :30 kHz to 300 kHz C. High Frequency :3 MHz to 30 MHz D. Very High Frequency : 30 MHz to 300 MHz E. None of the above

Last Answer : Very High Frequency : 30 MHz to 300 MHz

The frequency range of FM radio is

Description : The frequency range of FM radio is

Last Answer : The frequency range of FM radio is 88MHz to 108MHz

A 4 GHz carrier is amplitude modulated by a low-pass signal of maximum cut off frequency 1 MHz

Description : A 4 GHz carrier is amplitude modulated by a low-pass signal of maximum cut off frequency 1 MHz. lf this signal is to be ideally sampled, the minimum sampling frequency should be nearly

Last Answer : A 4 GHz carrier is amplitude modulated by a low-pass signal of maximum cut off frequency 1 MHz. lf this signal is to be ideally sampled, the minimum sampling frequency should be nearly 4 Ghz

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

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

Geodimeter is based on: (A) Propagation of modulated light waves (B) Propagation of infrared radiation (C) The visible light as carrier with frequency of the order of 5 × 1014 Hz (D) High frequency radio waves

Description : Geodimeter is based on: (A) Propagation of modulated light waves (B) Propagation of infrared radiation (C) The visible light as carrier with frequency of the order of 5 × 1014 Hz (D) High frequency radio waves

Last Answer : Answer: Option A

In_____ transmission, thephaseof the carrier signal is modulated to follow the changingvoltage level (amplitude) of the modulating signal. A) AM B) PM C) FM D) none of the above

Description : In_____ transmission, thephaseof the carrier signal is modulated to follow the changingvoltage level (amplitude) of the modulating signal. A) AM B) PM C) FM D) none of the above

Last Answer : PM

In_____ transmission, thecarrier signal is modulated so that its amplitude varies with the changing amplitudes of the modulating signal. A) AM B) PM C) FM D) none of the above

Description : In_____ transmission, thecarrier signal is modulated so that its amplitude varies with the changing amplitudes of the modulating signal. A) AM B) PM C) FM D) none of the above

Last Answer : AM

Why can phase-modulated signals be detected by fm detectors?

Description : Why can phase-modulated signals be detected by fm detectors?

Last Answer : Because of the incidental frequency shift that is caused while phase-shifting a carrier wave that is similar to fm modulation.

An FM signal with modulation index mƒ is passed through a frequency tripler. The modulation index of the

Description : An FM signal with modulation index mƒ is passed through a frequency tripler. The modulation index of the output signal will be (1) mƒ (2) 3mƒ (3) 9mƒ (4) 27mƒ

Last Answer : An FM signal with modulation index mƒ is passed through a frequency tripler. The modulation index of the output signal will be 3mƒ

For FM signal, the frequency deviation

Description : For FM signal, the frequency deviation

Last Answer : For FM signal, the frequency deviation Independent of the modulation frequency

What would happen if you plugged an FM transmitter into a radio's headphone jack and set the radio to the transmitter's transmitting frequency?

Description : What would happen if you plugged an FM transmitter into a radio's headphone jack and set the radio to the transmitter's transmitting frequency?

Last Answer : You would get a positive feedback loop, probably resulting in an audible tone. The amplitude would be limited by the transmitter’s modulation limiter, so all you’d have is a very ordinary oscillator.

Compare narrow band FM with wide-band FM w.r.t. following points. (i) Modulation index (ii) Maximum deviation (iii)Range of modulating frequency (iv)Application

Description : Compare narrow band FM with wide-band FM w.r.t. following points. (i) Modulation index (ii) Maximum deviation (iii)Range of modulating frequency (iv)Application

Last Answer : Sr. No Parameters Narrow band FM Wide band FM 1 Modulation index Less than or slightly greater than 1 Greater than 1  2 Maximum deviation ... like police wireless, ambulance etc. Entertainment broadcasting can be used for high quality music transmission 

In a microwave test bench, why is the microwave signal amplitude modulated at 1 kHz?

Description : In a microwave test bench, why is the microwave signal amplitude modulated at 1 kHz?  (1) To increase the sensitivity of measurement (2) To transmit the signal to a far-off place (3) To study amplitude modulation (4) Because crystal detector fails at microwave frequencies

Last Answer : In a microwave test bench, why is the microwave signal amplitude modulated at 1 kHz?  Because crystal detector fails at microwave frequencies

Which type of fading causes serious distortion of modulated signal:

Last Answer : Which type of fading causes serious distortion of modulated signal: Selective fading.

What is the first symbol of a radio signal transmission having an amplitude modulated signal carrier, double side band? A. C B. B C. H D. A

Description : What is the first symbol of a radio signal transmission having an amplitude modulated signal carrier, double side band? A. C B. B C. H D. A

Last Answer : D. A

What is the effect in over modulated amplitude modulated radio broadcasting transmission? A. Interference to adjacent channel B. Higher fidelity C. Increase noise D. Higher audio signal

Description : What is the effect in over modulated amplitude modulated radio broadcasting transmission? A. Interference to adjacent channel B. Higher fidelity C. Increase noise D. Higher audio signal

Last Answer : A. Interference to adjacent channel

For AM transmissions, the carrier is normally modulated within what range?

Description : For AM transmissions, the carrier is normally modulated within what range?

Last Answer : 60% to 95%.

The audio signals of TV are – (1) Amplitude modulated (2) Frequency modulated (3) Unmodulated (4) Velocity modulated

Description : The audio signals of TV are – (1) Amplitude modulated (2) Frequency modulated (3) Unmodulated (4) Velocity modulated

Last Answer : (2) Frequency modulated Explanation: In analogue television, the sound portion of a broadcast is invariably modulated separately from the video. Most commonly, the audio and video are combined at ... visual antennas can be used. In almost all cases, standard wideband frequency modulation is used.

The audio signals of TV are : (1) Amplitude modulated (2) Frequency modulated (3) Unmodulated (4) Velocity modulated

Description : The audio signals of TV are : (1) Amplitude modulated (2) Frequency modulated (3) Unmodulated (4) Velocity modulated

Last Answer : (2) Frequency modulated Explanation: In telecommunications and signal processing, frequency modulation (FM) conveys information over a carrier wave by varying its instantaneous frequency. This contrasts with ... , the sound portion of a broadcast is invariably modulated separately from the video.

Which circuit detects frequency modulated signal? A. Modulator B. Discriminator C. Demodulator D. Modem

Description : Which circuit detects frequency modulated signal? A. Modulator B. Discriminator C. Demodulator D. Modem

Last Answer : B. Discriminator

The ratio of the level of the modulated output of a transmitter under conditions of standard test modulation to the level of the demodulated output with no modulation applied both measured with the same bandwidth. A. Reference audio output B. None of these C. Audio frequency response D. Residual noise level

Description : The ratio of the level of the modulated output of a transmitter under conditions of standard test modulation to the level of the demodulated output with no modulation applied both measured with the ... . Reference audio output B. None of these C. Audio frequency response D. Residual noise level

Last Answer : D. Residual noise level

ECE Board Exam March 1996 What is the purpose of a beat frequency oscillator (BFO)? A. Aid in the reception of weak voice-modulated signals B. Generates a signal, whose frequency is the same as that of the intermediate frequency C. Generates a 1kHz note for Morse code reception D. Generates an output, whose frequency differs from that of the intermediate frequency by 1 kHz

Description : ECE Board Exam March 1996 What is the purpose of a beat frequency oscillator (BFO)? A. Aid in the reception of weak voice-modulated signals B. Generates a signal, whose frequency is the ... reception D. Generates an output, whose frequency differs from that of the intermediate frequency by 1 kHz

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In frequency modulation, amplitude of modulated wave is A. positive B. negative C. constant D. zero

Description : In frequency modulation, amplitude of modulated wave is A. positive B. negative C. constant D. zero

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Amplitude of modulated wave is in phase with A. output B. system C. frequency D. signal

Description : Amplitude of modulated wave is in phase with A. output B. system C. frequency D. signal

Last Answer : signal

If frequency of modulated wave is less than frequency of carrier wave, then input signal is A. negative B. positive C. zero D. infinite

Description : If frequency of modulated wave is less than frequency of carrier wave, then input signal is A. negative B. positive C. zero D. infinite

Last Answer : negative

The _______ technique uses M different carrier frequencies that are modulated by the source signal. At one moment, the sign modulates one carrier frequency; at the next moment, thesignal modulates another carrier frequency. A) FDM B) DSSSC)FHSSD)TDM

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Last Answer : FHSS

Carrier is A. One or more conductors that serve as a common connection for a related group of devices B. a continuous frequency capableof being modulated or impressed witha second signal C. the condition whentwo or more sections attempt to use the same channel at the same time D. a collection of interconnected functional units that provides a data communications service among stations attached tothe network E. None of the above

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Last Answer : a continuous frequency capableof being modulated or impressed witha second signa

Contention is A. One or more conductors that serve as a common connection for a related group of devices B. a continuous frequency capableof being modulated or impressed witha second signal C. the condition whentwo or more stations attempt to use the same channel at the same time D. a collection of interconnected functional units that provides a data communications service among stations attached tothe network E. None of the above

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Draw amplitude modulated waveform in time domain and frequency domain with proper labeling.

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Last Answer : AM in Time domain  AM in frequency domain

The audio signals of TV are (1) Amplitude modulated (2) Frequency modulated (3) Unmodulated (4) Velocity modulated

Description : The audio signals of TV are (1) Amplitude modulated (2) Frequency modulated (3) Unmodulated (4) Velocity modulated

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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.

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If a signal band limited to fm is sampled at a rate less than 2fm, then the constructed signal will be

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Last Answer :  If a signal band limited to fm is sampled at a rate less than 2fm, then the constructed signal will be Distorted 

Ideal transmission bandwidth of FM signal is

Description : Ideal transmission bandwidth of FM signal is

Last Answer : Ideal transmission bandwidth of FM signal is Infinite

What is the frequency range of VHF electromagnetic waves?

Description : What is the frequency range of VHF electromagnetic waves? A) 30-300 kHz B) 30-3000 kHz C) 30-300 MHz D) 30-3000 MHz

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An accelerometer has input range of 0 to 10g, natural frequency 30 Hz and mass 0.001 kg. The range of the

Description : An accelerometer has input range of 0 to 10g, natural frequency 30 Hz and mass 0.001 kg. The range of the secondary displacement transducer in mm required to cover the input range is (A) 0 to 2.76 (B) 0 to 9.81 (C) 0 to 11.20 (D) 0 to 52.10

Last Answer : An accelerometer has input range of 0 to 10g, natural frequency 30 Hz and mass 0.001 kg. The range of the secondary displacement transducer in mm required to cover the input range is 0 to 2.76

Frequency in the UHF range propagate by means of

Last Answer : Frequency in the UHF range propagate by means of Space waves.

Are your radio stations that FM is religious and country music and AM urban and rock and roll?

Description : Are your radio stations that FM is religious and country music and AM urban and rock and roll?

Last Answer : Just the opposite here. Music (top 40, oldies, etc.,) are all on FM because the sound is so much cleaner and immune to static. AM gets sports, preachers, and talk radio, because sound quality isn’t that important.

Do you listen to free, over-the-airwaves, no internet required, FM radio, with your smartphone?

Description : Do you listen to free, over-the-airwaves, no internet required, FM radio, with your smartphone?

Last Answer : No, I don’t. I understand that they use your headphones (and more specifically the wire to the headphones) as an antenna, and I don’t use headphones. And I am never far from and FM radio; either in my house or my car.

Can you suggest a good FM/AM radio?

Description : Can you suggest a good FM/AM radio?

Last Answer : Car radios are pretty good at picking up weak signals. In my house, I have a separate tuner and amplifier, and I can’t pick up signals that my car radio picks up with ease.

Are you ready for the end of FM radio?

Description : Are you ready for the end of FM radio?

Last Answer : Absolutely. I am always surprised that it is still a thing.

What's a quick, easy and inexpensive way to boost the am/fm signal to my home radio?

Description : What's a quick, easy and inexpensive way to boost the am/fm signal to my home radio?

Last Answer : These are rated pretty high by customer reviews, it only does FM. if you don’t like it it can be returned for a refund. http://www.amazon.com/Terk-Outdoor-Dual-Drive-Amplified-Antenna/dp/B00009UHYQ/ref=sr_1_1?ie=UTF8&qid=1422930976&sr=8-1&keywords=terk+fm+50

Where can I buy a table top radio, with remote, that receives HD, AM and FM bands?

Description : Where can I buy a table top radio, with remote, that receives HD, AM and FM bands?

Last Answer : I was recently shopping for a new radio, too, and did some research, but nowhere could I find one with the kind of high-end features you want for less than hundreds. This Bose is a wonderful radio, but unfortunately, costs 3X. This if one of the lists I was looking at.

Generally, what do you get from AM radio that you don't get on FM radio, and vice versa?

Description : Generally, what do you get from AM radio that you don't get on FM radio, and vice versa?

Last Answer : I love the smooth, clear sounds of FM and loathe the shrill commercials of AM radio.

Would you do volunteer work at this FM radio station?

Description : Would you do volunteer work at this FM radio station?

Last Answer : Yes, of course, it is something you obviously like(d), and the costs…, they wouldn’t be that high, or would they? And you initially jumped at the thought, so i guess your heart told you already what to do. Do it. That is not an order.

Where have all the oldies FM radio stations gone?

Description : Where have all the oldies FM radio stations gone?

Last Answer : answer:I think that they think their listeners are dead. I've always liked oldies. I'm 39. Imagine my surprise when the oldies station (60s stuff mostly) changed to 80s and 90s and they ... stations. Meanwhile we have at least 4 Hip Hop stations and probably twice that amount of Tejano stations.

I was wondering if there are any bluetooth mp3 players that have am/fm radio?

Description : I was wondering if there are any bluetooth mp3 players that have am/fm radio?

Last Answer : Here’s one, but without the AM frequency . . . http://www.google.com/products/catalog?hl=en&q=portable+bluetooth+mp3+player&show=dd&cid=6021463648594635818&sa=title&os=tech-specs

Do you listen to the regular AM/FM radio still?

Description : Do you listen to the regular AM/FM radio still?

Last Answer : I listen to the radio almost never. I listen to mp3 audio books.