A transmitter transmits 10 watts into free space, using an antenna with a gain of 20...
A transmitter transmits 10 watts into free space, using an antenna with a gain of 20 dB. 20 km away, a receiver, with an antenna of gain 2 dB, picks up the signal. The frequency is 300 MHz. In the absence of any reflections or obstacles, what is the maximum signal that the receiver can pick up? Express the answer in dBμW
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A transmitter transmits 10 watts into free space, using an
antenna with a gain of 20...
I NEED HELP IN THIS QUESTION ASAP PLEASE A Transmitter provides 15 W to an antenna...
I NEED HELP IN THIS QUESTION ASAP PLEASE
A Transmitter provides 15 W to an antenna having 12 dB gain. The receiver Antenna has a gain of 3 dB and the receiver bandwidth BW is 30 kHz. If the receiver system noise figure F = 8 dB and the carrier frequency is 1800 MHz, Determine the maximum T-R separation that will ensure that a SNR of 20 dB is provided for 95% of the time. Assume n=4, 0 = 8...
QUESTION 12, 13, 14???? In 3.14, can write Gt and Gr directly in the answer, or...
QUESTION 12, 13, 14????
In 3.14, can write Gt and Gr directly in the answer, or assume
Gt and Gr =1 (specify hypothesis)
P3.8. Path loss, fading, and delay spread are the three most important radio propagation issues. Explain why those issues are important in a cellular system. What is the difference between fast fading and slow fading? Р3.9. How is radio propagation on land different from that in free space? What does a small delay spread indicate about the...
7) If f1= 5MHz and f2=7 MHz, find: a. 2nd order harmonics. b. 3rd order harmonics....
7) If f1= 5MHz and f2=7 MHz, find: a. 2nd order harmonics. b. 3rd order harmonics. c. 3rd order inter-modulation products (IMD) 8) In a superheterodyne receiver, the input RF frequency is 1 GHz. Find the IF frequency if the local oscillator frequency is 950 MHz? 9) Rank from 1 to 3 for linearity and efficiency with 1 as the most linear and most efficient. Class of amplifier Linearity Efficiency Class A Class B Class C 10) Which of the...
11.12 The amplitude of the electric field intensity of a half-wave dipole antenna at r 5 km and /6rad is 0.01 V/m in free space. If the operating frequency is 30 MHz, determine its length and the tot...
11.12 The amplitude of the electric field intensity of a half-wave dipole antenna at r 5 km and /6rad is 0.01 V/m in free space. If the operating frequency is 30 MHz, determine its length and the total power that it radiates. Alse, write express
11.12 The amplitude of the electric field intensity of a half-wave dipole antenna at r 5 km and /6rad is 0.01 V/m in free space. If the operating frequency is 30 MHz, determine its length...
Problem #2: (40 points) Consider the following communication link. Both the transmitter and receivers are properly...
Problem #2: (40 points) Consider the following communication link. Both the transmitter and receivers are properly matched to their respective antennas. Assume that the system nominal temperature is 290 K. A detailed block diagram of the receiver is shown in the figure Determine 1. The effective isotropic radiated power in dBm. 2. The space loss in dB 3. The communication link total losses in dB 4. What would be the received power at the receiver input in dBm? 5. What's...
An Omni-directional antenna with a gain of 1.77 dB in horizontal direction is transmitting 1 Watt...
An Omni-directional antenna with a gain of 1.77 dB in horizontal direction is transmitting 1 Watt at 1 GHz and 5 woatts at 1.5 GHz signal uniformly in a lossless spherical medium with both ?,and ?,equal to 1, in case the answers are different for both signals show the calculations for both signals a. Write the wave equations as a function of R and t. b. Calculate the value of E and H at 1.6 km away from transmitter. c....
Problem I Consider a digital communication downlink from a cellular tower to a cellular telephone. The...
Problem I Consider a digital communication downlink from a cellular tower to a cellular telephone. The link operates at a frequency of 900 MHz and the tower transmits at an EIRP100 Watts. The height of the tower is 35 meters and it is assumed that the height of the phone is 2 meters. The gain of the cellular phone antenna s 3 dB. Assume that the cellular phone requires a minimum receive power, P(min), of 1.5 x 109 Watts. a)...
Designing a High speed Wireless Data Link Line of Sight Link Budget Analysis Several major factors that can impact...
Designing a High speed Wireless Data Link Line of Sight Link Budget Analysis Several major factors that can impact the performance of a radio system are Available/permitted output power e Bandwidth, . Receiver sensitivity Antenna gains In this case study, the students will be required to calculate the link budget for a LOS Wireless link. Read through the following to understand some of the aspects and elements that need to be considered when calculating a Link Budget. If the estimated/calculated...
5.1 Determine the maximum and minimum spectral frequencies received from a stationary GSM transmitter that has...
5.1 Determine the maximum and minimum spectral frequencies received from a stationary GSM transmitter that has a center frequency of exactly 1950.000000 MHz, assuming that the receiver is traveling at speeds of: (a) 1 km/hr; (b) 5 km/hr; (C) 100 km/hr; and (d) 1000 km/hr. 5.5 Given that the coherence bandwidth is approximated by Equation (5-39), show that a flat fading channel occurs when T, 2 10 04. Hint: Note that B is an RF bandwidth, and assume that Ts...
I NEED HELP IN THIS QUESTION ASAP PLEASE
A Transmitter provides 15 W to an antenna having 12 dB gain. The receiver Antenna has a gain of 3 dB and the receiver bandwidth BW is 30 kHz. If the receiver system noise figure F = 8 dB and the carrier frequency is 1800 MHz, Determine the maximum T-R separation that will ensure that a SNR of 20 dB is provided for 95% of the time. Assume n=4, 0 = 8...
QUESTION 12, 13, 14????
In 3.14, can write Gt and Gr directly in the answer, or assume
Gt and Gr =1 (specify hypothesis)
P3.8. Path loss, fading, and delay spread are the three most important radio propagation issues. Explain why those issues are important in a cellular system. What is the difference between fast fading and slow fading? Р3.9. How is radio propagation on land different from that in free space? What does a small delay spread indicate about the...
11.12 The amplitude of the electric field intensity of a half-wave dipole antenna at r 5 km and /6rad is 0.01 V/m in free space. If the operating frequency is 30 MHz, determine its length and the total power that it radiates. Alse, write express
11.12 The amplitude of the electric field intensity of a half-wave dipole antenna at r 5 km and /6rad is 0.01 V/m in free space. If the operating frequency is 30 MHz, determine its length...
Problem #2: (40 points) Consider the following communication link. Both the transmitter and receivers are properly matched to their respective antennas. Assume that the system nominal temperature is 290 K. A detailed block diagram of the receiver is shown in the figure Determine 1. The effective isotropic radiated power in dBm. 2. The space loss in dB 3. The communication link total losses in dB 4. What would be the received power at the receiver input in dBm? 5. What's...
An Omni-directional antenna with a gain of 1.77 dB in horizontal direction is transmitting 1 Watt at 1 GHz and 5 woatts at 1.5 GHz signal uniformly in a lossless spherical medium with both ?,and ?,equal to 1, in case the answers are different for both signals show the calculations for both signals a. Write the wave equations as a function of R and t. b. Calculate the value of E and H at 1.6 km away from transmitter. c....
Problem I Consider a digital communication downlink from a cellular tower to a cellular telephone. The link operates at a frequency of 900 MHz and the tower transmits at an EIRP100 Watts. The height of the tower is 35 meters and it is assumed that the height of the phone is 2 meters. The gain of the cellular phone antenna s 3 dB. Assume that the cellular phone requires a minimum receive power, P(min), of 1.5 x 109 Watts. a)...
Designing a High speed Wireless Data Link Line of Sight Link Budget Analysis Several major factors that can impact the performance of a radio system are Available/permitted output power e Bandwidth, . Receiver sensitivity Antenna gains In this case study, the students will be required to calculate the link budget for a LOS Wireless link. Read through the following to understand some of the aspects and elements that need to be considered when calculating a Link Budget. If the estimated/calculated...
5.1 Determine the maximum and minimum spectral frequencies received from a stationary GSM transmitter that has a center frequency of exactly 1950.000000 MHz, assuming that the receiver is traveling at speeds of: (a) 1 km/hr; (b) 5 km/hr; (C) 100 km/hr; and (d) 1000 km/hr. 5.5 Given that the coherence bandwidth is approximated by Equation (5-39), show that a flat fading channel occurs when T, 2 10 04. Hint: Note that B is an RF bandwidth, and assume that Ts...
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