Distinguish between sky wave and space modes of communication. What is the main limitation of space wave mode? Write the expression for the optimum separation between the transmitting and receiving antenna for effective reception of signals in this mode of communication.

Q: During the Cold War, American submarines operated as "lone wolves" at extreme ocean depths for many…

A: ν= 94 HzFor quarter Wave Antenna,l=λ4

Q: Two microwave frequencies are authorized for use in microwave ovens, 880 and 2550 MHz. Calculate the…

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Q: A person driving at v = 16 m/s crosses the line What is the longest possible wavelength of the radio…

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Q: Take-Home Experiment: Antennas :- For your TV or radio at home, identify the antenna, and sketch its…

A: Frequency range, f = 60 MHz to f'  = 216 MHz

Q: TV-reception antennas for VHF are constructed with cross wires supported at their centers. The ideal…

A: Given values:- Length of wire for the first channel,(L1)=1.94 m ----(1) Length of wire for the…

Q: What is the definition for "wave" in relation to the electromagnetic spectrum? O a hand motion; an…

A: To explain : The definition for "wave" in relation to the electromagnetic spectrum

Q: Can radio antennas emit visible light. ?

A: Regular radio antennas can not emit visible lights, however if enough energy is pumped into the…

Q: Explain optical communication through a block diagram. For long distance communication whether (i)…

A: A transmitter encodes a message into an optical signal, a channel transports the signal to its…

Q: Q2. Calculate the maximum power which can be received at a distance of 22 km in a free space. A 30…

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Q: By using antenna rods of several different lengths, the antenna shown is designed to pick up signals…

A: As we know,  Working of antenna is based on the principle of electrical resonance.  Most of the…

Q: The power of our microwave transmitters is about 15 mW. What is the approximate power of a typical…

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Q: Directions: Compare the frequencies of different EM waves. Refer to the given figure to answer the…

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Q: 5. a) Write down major differences between general wave (i.e. sound wave) and EM wave. Explain the…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: Determine TE and TM modes in elliptical waveguide

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Q: a. Suppose you are standing 269 m from a radio transmitter. What is your distance from the…

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Q: Determine Maxwell's equations in a vacuum. Depict that light is an EM wave from the mathematical…

A: Gradient of a function is defined as ∇→.F→ curl of the function is ∇→×F→

Q: Two microwave frequencies are authorized for use in microwave ovens, 895 and 2530 MHz. Calculate the…

A: The first frequency, The second frequency,

Q: le to Bluetooth for usage in a home

A: While it is a common belief that infrared (IR) light waves are preferable to Bluetooth for home…

Q: 3. Designing an antenna for Bluetooth in about 2.4GHz, which type is the best among A, B, or C if…

A: S11 parameters are used to describe the power factor reflected from the antenna, if it is zero, it…

Q: A bandwidth-limited radio signal has a spectrum occupying the frequencies from 240 kHz up to 260…

A: To determine the minimum undersampling rate required to create non-overlapping spectrum replicas of…

Q: A signal of 800 nm is transmitted to a satellite orbiting Earth at 190 km. Calculate the shift in…

A: When light is moving away from a gravitational source its energy will decrease. The wavelength will…

Q: : A particular radio station utilizes frequencies between commercial AM and FM, to avoid…

A: Frequency (f) = 13MHz f = 13 × 106Hz We know that Vw= fλ.  Where vW is the propagation speed of the…

Q: What is the wavelength of an FM radio station that broadcasts at 101.1 MHz? Assume speed of light…

A: The wavelength λ is given by λ=cν where c=speed of light and ν is the frequency.  Given that…

Q: Determine Maxwell's equations in a vacuum. Depict that light is an EM wave from the mathematical…

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Q: arrange the following in the order at which carrier waves are produced and transmitted:

A: Arrange the given data in the given order as Parts of transmitter-linkages-waves.

Q: For your TV or radio at home, identify the antenna, and sketch its shape. If you don’t have cable,…

A: When the frequency is 60 MHz, the wavelength is,

Q: Satellite radios operate at frequency of 2.3 GHz. Comment on possible reasons of choosing such…

A: Radio wave  are electromagnetic wave of frequency between 30Hz and 300GHz.They are generated by an…

Q: Two microwave frequencies are authorized for use in microwave ovens, 900 and 2510 MHz. Calculate the…

A: Frequencies of microwaves are:We know that:

Q: Can you help with 2a and 2b please ? 2a. Calculate the range of wavelengths for AM radio given its…

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Q: Your favorite radio program broadcasts 96.3 MHz. What is the wavelength corresponding to this…

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Q: For a S-band horn antenna what RF measurements can be measured on a Scalar Network Analyzer?

A: Scalar Network Analyzer is one type of RF Network Analyzer. Compared to a vector network analyser,…

Q: a coaxial capacitor of length l = 5 cm consists of two As shown in Figure cylindrical conductors…

A: (a).  The space between the conductor is filled with dielectric. Even though space is filled with…

Q: The half wave dipole antenna height of transmitter is 175 m and antenna height of receiver is 18 m.…

A: Given: The height of the transmitter is ht=175 m. The height of the receiver is hr=18 m. The field…

Q: Determine the incident, reflected and transmitted electric (E) and magnetic (H) fields for the…

A: The electric & magnetic fields of electromagnetic wave having frequency ω is given by the…

Q: Two radio antennas are separated by 1.60 m. Both broadcast identical 750 MHz waves. Part A If you…

A: Distance ,d = 1.6 mfreqency ,f = 750 MHzRadius,r = 20 m

Q: Q2. Compute the smallest radius of a circular antenna (with constant excitation current) in terms of…

A: To find the smallest radius   a   of a circular antenna in terms of the wavelength   λ   where the…

Q: Example: The green light associated with the aurora borealis is emitted by excited (high-energy)…

A: Given data, Wavelength λ=557.7 nm = 557.7×10-9 m. Velocity of light c=3×108 m/s.

Q: What are the properties of an EM wave? Be sure to answer the following questions: What is it made up…

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Q: NASA communicates with the Space Shuttle and International Space Station using Ku-band microwave…

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Q: Q1. Explain Hartley LC oscillators in detail. Give derivation for its cut off frequency?

A: Answer:   Introduction:   It is here to introduce the Hartley LC oscillator circuit as follows: