9. The antenna current for an AM transmitter increases by 15% over the unmodulated value when the sinusoidal modulation is applied. Find the depth of modulation.

Q: An FM signal has a deviation of 5 kHz and a modulating frequency of 1 kHz. Its total power Pr is 8W,…

A:

Q: An acb sequence balanced three-phase Y-connected source supplies power to a balanced, three-phase…

A: As the given phase sequence is negative, determine the source line to neutral voltage for phase a.

Q: An antenna has an impedance of 50 ohms. An unmodulated  AM signal produces a current of 5A.…

A:

Q: FM modulator is used to transmit a cosine message signal with 4V amplitude and 20Hz frequency. The…

A:

Q: We shall study the function of the PN generator in the context of the transmitter (Tx) and receiver…

A: Sure, here's a simple example of how a PN (Pseudo-Noise) generator is used in the context of a Tx…

Q: Suggest an alternative circuit by which FM signal can be detected

A: The FM signal can be detected by the basic Foster-Seeley circuit shown below:

Q: What is the dominant mode of an EM wave in a parallel-plate waveguide?

A: What is the dominant mode of an EM wave in a parallel-plate waveguide? The dominant mode of an EM…

Q: The following block diagram is for an Armstrong indirect FM transmitter. Find the missing five…

A: Given :   Brief description:    The question they have mentioned Armstrong indirect FM transmitter.…

Q: How can power spectral density of non periodic signal be calculated? a. By integrating b. By…

A: Solution- A non periodic signal's power spectral density can be measured by truncating it and…

Q: sine wave carrier is modulated by a single tone so that Emax = 25 mV and Emin = 10 mV. Calculate the…

A:

Q: Determine n and the percentage of the total power carried by the sidebands of the AM wave for tone…

A: It is given that:

Q: A carrier wave of frequency 100 MHz is frequency modulated by a sinusoidal wave of amplitude 20 V…

A: Modulation is process by which some properties of carrier signal is varied according to modulating…

Q: 4) The pulsed cosine signal shown in the following figure is "on" for two cycles and then "off" for…

A: Frequency Spectrum: No of cycle 18, frequency=200pi rad/sec limit -10 to 10 To find:  Sketch…

Q: generate AM wave Vm (t) = Vm Sin (t), the AM Bandwidth is equal to 10 KHz, modulation index m = 0.6…

A:

Q: determine the modulation index

A: In this question, we need to determine the modulation index. Sinusoidal modulated ordinary AM…

Q: 1. An FM signal has a maximum frequency deviation of 25kHz and is modulated by a sine wave with a…

A:

Q: Given: Carrier 10 MHz  Modulated 10 kHz wave 20 kHz frequency deviation Find: Bandwidth of…

A: Given, Carrier frequency, fc=10 MHz frequency of modulating signal, fm=10 MHz frequency deviation,…

Q: *2. If a 1500-kHz radio wave is modulated by a 2-kHz sine-wave tone, what frequencies are con-…

A: Frequency of modulated radio wave, fc=1500 kHz.. Frequency of modulating sine wave, fm=2 kHz.

Q: 4. Medium frequency range is from 001

A: Medium frequency is used for the radio frequencies and also this band is used for AM…

Q: Volt/div = 37 V for red signal, Volt/div = 42 V for blue signal and Time/div = 87 s. What is the…

A: Two signals waveform are shown in the figured.  Find the phase shift difference between both…

Q: 03:- An AM transmitter has Carrier Power is 35W, the percentage of modulation is 85 percent. Find…

A: Q. 3 Given :Carrier power, PC=35 W% of modulation=0.85

Q: (a) A 1 MHz carrier with an amplitude of 1V is modulated by a 1 kHz signal with m=0.5. Sketch the…

A:

Q: Write the logic expression for the circuit in Fig3-4 and draw waveform of output X according to…

A: The given circuit is:

Q: Design a microstrip for a 50 ohms characteristic impedance. Use h=1.6mm epoxiglass substrate.…

A: Design a microstrip for a 50 ohms characteristic impedance. And use h=1.6mm epoxy glass substrate.…

Q: A 100MHZ carrier is frequency modulated by 1 KHz wave. For a frequency deviation of 50 KHz,…

A: The solution can be achieved as follows.

Q: 1. How many sinusoidal frequency components are there for a perfect switching square waves?  2.…

A:

Q: Problem 5. We are transmitting our 12/4 APSK waveform with outer ring voltage 5 Volts and inner ring…

A: We need to find out cancellation ratio for given ASK .

Q: The carrier frequency is 600 Hz, and the modulating signal is a single- tone sinusoidal signal. The…

A: Time axis of the graph shows the time period of modulated AM  If we do diffrence in time at two peak…

Q: 5.5V 1V 1V 52kHz 58kHz a) if the modulating signal is a sine wave, write the equation of the…

A: According to the question, The maximum frequency and minimum frequency of the modulated signal are…

Q: The carrier frequency is 500 Hz, and the modulating signal is a single-tone sinusoidal signal. The…

A: Peak value of envelope is Ac(1+u) Lowest value of envelope is Ac(1-u) Where Ac is Carrier Amplitude…

Q: A sequence of alternating Is and Os is transmitted as a square wave. What is the fundamental…

A: Solution

Q: 2- An earth station satellite transmitter has an HPA with a rated saturated output power of l10,000…

A: From the given data output power PT=10,000 W(branching loss)= 2dBfeeder loss =4 dBantenna gain =40…

Q: b) Double-Sideband Amplitude Modulation (or DSB-AM) is one of the simplest modulation schemes used…

A: i) We need to draw a DSB-AM waveform in the time domain, identifying any key features. ii) We need…

Q: Q2-A Single tone signal (coswt) is modulated using normal AM signal. The maximum instantaneous power…

A: Given :    Pmax = 60 Watt    Pmin = 40 Watt    Here they have  mentioned the maximum and minimum…

Q: Arrange the following measurements in descending order: 1000 Hz, .00001 THz, 10 GHz, .01 MHz,…

A:

Q: An AM waveform has a maximum span of 7.5V while minimum span of 2.5V. Determine the modulation index…

A: We need to find out modulation index and efficiency for amplitude modulation.

Q: Volt/div = 37 V for red signal, Volt/div = 7 V for blue signal and Time/div = 11 s. What is the…

A:

Q: B- Explain Zeros and Poles for frequency response.

A: Need to explain about zeros and poles for frequency response

Q: an DSBFC wave (m = 1) with an unmodulated carrier voltage of 18 V and a load resistance of 72 Ω,…

A: We need to calculate power for DSBFC .

Frequency Modulation

Frequency modulation is a method or process of encoding the data of a specific signal (analog or digital) by modulating the carrier wave frequency according to the frequency of the modulated signal. Modulated signals are nothing more than information or data that should be conveyed after being converted into electronic signals.