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Correlations 2 : Communications 2nd Sem 2526
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An isotropic radiates 150W of power in free space calculate the electric field intensity at a distance of 10km from the source.
What power density is required to produce an electric strength of 100V/m in air
A certain antenna has a gain of 6.7 dB with respect to an isotropic radiator operates at 150MHz. How much power would it absorb from a signal with a field strength of 50uV/m
A satellite transmitter operates at 4 GHz with an antenna gain of 40 dBi. The receiver 40,000 km away has an antenna gain of 50 dBi. If the transmitter has power of 8W find EIRP in dBW?
Find the characteristic impedance of glass, which has a relative permitivity of 6.7.
Describe how the signal level at the receiver would be altered if the distance from the transmitter were to be decreased by 50%. Express this theoretical change in terms of decibels (dB)
A certain antenna has a gain of 5.5 dB with respect to an isotropic radiator. What is its effective area if it operates at 300MHz?
A certain antenna has a gain of 6.7 dB with respect to an isotropic radiator operates at 150MHz. How much power would it absorb from a signal with a field strength of 100uV/m