Question

In: Electrical Engineering

Assuming a reciever is located 10km from a 50w transmitter. the carrier frequency is 1900Mhz, free...

Assuming a reciever is located 10km from a 50w transmitter. the carrier frequency is 1900Mhz, free Gr=2, find
I) the power at the receiver,
II) the magnitude of the E-field at the receiver antenna,
iii) the open circuit RMS voltage applied to the receiver input assuming that the receiver antenna has 50ohms and is match to the receiver .
iv) find the received power at the mobile using the two- ray ground reflection model assuming the height of the transmitting antenna is 50m, recieving antenna is 1.5m above the ground , and the ground reflection is -1

Solutions

Expert Solution


Related Solutions

A transmitter must operate at a frequency of 168.96 MHz with the deviation of +/- 5kHz....
A transmitter must operate at a frequency of 168.96 MHz with the deviation of +/- 5kHz. It uses three multipliers – a doubler, a tripler, and a quadrupler. Phase modulation is used. Calculate the frequency of the carrier crystal oscillator and the phase shift required to produce the necessary deviation at a 2.8 kHz modulation frequency. Carrier Frequency =            Phase Shift =
For a Double SideBand – Large Carrier (DSB-LC) Modulated Amplitude Modulator (AM) with a carrier frequency...
For a Double SideBand – Large Carrier (DSB-LC) Modulated Amplitude Modulator (AM) with a carrier frequency Fc = 1100kHz z and a maximum modulating signal frequency Fm (max) = 22kHz, determine: a. Frequency limits for the lower side bands (LSB) and upper (USB). b. Bandwidth c. The equation for the AM signal if the carrier has a Vrma voltage of 6V and the modulating signal has a Vrma voltage of 1V. Consider the fm(max) transmission. d. Lower (LSB) and upper...
CF carrier frequency estimations in American Hispanic populations • Carrier screening kits for Cystic Fibrosis alleles...
CF carrier frequency estimations in American Hispanic populations • Carrier screening kits for Cystic Fibrosis alleles have been updated to include more probes (CFTR 60 kit 2) • It is reported to have a detection rate of 83.7% in Hispanic American populations. The same group have a CF incidence of 1 in 9,500. Given the above, determine: 1) CF carrier frequency in the Hispanic American population. 2) Estimate the probability of being a carrier if a CFTR 60 kit result...
1. (10 pts) A mobile receiver communicates with the transmitter at an operating frequency of 550...
1. (10 pts) A mobile receiver communicates with the transmitter at an operating frequency of 550 MHz at a distance of 3 km. Calculate the path loss in the system. 2. (15 pts) Assume that two antennas are half-wave dipoles and each has a gain of 3 dB. If the transmitted power is 1 W and the two antennas are separated by a distance of 10 km, what is the received power? Assume that the frequency is 100 MHz. 3....
Construct the Transmitter and Receiver of a Frequency Hopping Spread Spectrum system. Also label and mention...
Construct the Transmitter and Receiver of a Frequency Hopping Spread Spectrum system. Also label and mention the purpose of each component.
A carrier signal with unit amplitude and frequency fc1 = 50 kHz is modulated with a...
A carrier signal with unit amplitude and frequency fc1 = 50 kHz is modulated with a message signal ?1(?)=2cos(2??1?), where f1 = 15 kHz, to produce a DSB-SC signal. This DSB signal must be up-converted to a center frequency fc = 100 kHz. a. Determine the image frequency of the DSB signal. [2] b. An Upper-SSB signal with unit amplitude carrier at the image frequency calculated above also exists in the spectrum. The SSB signal is tone modulated with ?2(?)=4cos(2??2?),...
2. An AM radio station broadcasts a signal at a carrier frequency ωc, with an amplitude...
2. An AM radio station broadcasts a signal at a carrier frequency ωc, with an amplitude modulation frequency of ωm << ωc, E(t) = E0[1 + A sin(ωmt)] sin(ωct) Show that this is the sum of a wave at the carrier frequency, the lower sideband (ωL = ωc−ωm), and the upper (high) sideband (ωH = ωc + ωm). What total bandwidth is required if the radio station wants to broadcast music that contains modulation frequency components from 20 to 10,000...
WRKO is an AM radio station that transmits on a carrier frequency of 680 kHz. What...
WRKO is an AM radio station that transmits on a carrier frequency of 680 kHz. What wavelength is WRKO transmitting? (Hint: vel = freq * wavelength, these are electromagnetic waves.) An efficient dipole antenna for transmitting or receiving radio signals is the ¼ wavelength antenna. (antenna should be ¼ the wavelength of the signal) What size transmitting antenna should WRKO use? WBCN is an FM radio station that transmits on a carrier frequency of 104.1 MHz. What is the wavelength...
Researchers sampled 6000 people in each of 4 villages in Europe for the carrier frequency of...
Researchers sampled 6000 people in each of 4 villages in Europe for the carrier frequency of the autosomal recessive disease phenylketonuria. Anna, Philip, Guillaume and Cathy’s home villages were tested. For each village the researchers reported one of the following either the PKU allele frequency, or the phenotype frequency or the genotype frequency or the carrier frequency (see table). If each population is in Hardy Weinberg equilibrium choose which option best represents the number of people expected to be carriers...
a) Assuming that the frequency of oscillation is due to the difference in energy between the...
a) Assuming that the frequency of oscillation is due to the difference in energy between the 2p and 1s states of the H atom, and that the amplitude of oscillation is about one Bohr radius, estimate the rate at which energy is classically radiated in eV/s. b) Estimate the classical time it takes for this atom to radiate the energy difference between these two states.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT