You are designing a satellite communications system with the
following parameters:
Satellite parabolic antenna has a diameter of 1 meter
Earth Station parabolic antenna has a diameter of 2.5 meters
Operating frequency of the system is 4 GHz
Transmission system bandwidth of 106 Hz
Satellite transmitter power of 10 watts
Assume earth receiver operating at room temperature (294
kelvin)
a. What is the maximum distance the satellite can be from earth,
in kilometers, so that the SNRdb at the earth...
A C-band station has an antenna with a transponder
gain of 54dB.The
transmitter output power is set to 100 W at a frequency of 6.10
GHz.
The signal is received by a satellite at a distance of 37,500 km
through
an antenna with diameter of 6m. The signal is then routed to
a
transponder with a noise bandwidth of 36 MHz, and a gain of
110dB
1. Calculate the path loss.
2. Calculate power at the output port of the...
A fulcrum is placed at the 55 cm position of a 100 cm (1 meter)
stick with a mass of 18 kg. a 10 kg mass is placed at 70 cm
position. where must a 5 kg mass be placed so that the net torque
is zero? (assume the mass of the meter stick is uniformly
distributed)
A car drives over the top of a hill that has a radius of 55 m
.
What maximum speed can the car have without flying off the road
at the top of the hill?
A long, thin solenoid has 870 turns per meter and radius 3.00cm
. The current in the solenoid is increasing at a uniform rate of
65.0A/s .
A)What is the magnitude of the induced electric field at a point
0.550cm from the axis of the solenoid?
B)What is the magnitude of the
induced electric field at a point 1.00cm from the axis of the
solenoid?
A long, thin solenoid has 600 turns per meter and radius 2.6 cm.
The
current in the solenoid is increasing at a uniform rate
dI/dt. The induced
electric eld at a point near the center of the solenoid and 3.80 cm
from
its axis is 8.00 10 -5 V/m. Calculate
dI/dt
A long, thin solenoid has 870 turns per meter and radius 2.70 cm
. The current in the solenoid is increasing at a uniform rate of
64.0 A/s
What is the magnitude of the induced electric field at a point
0.520 cm
from the axis of the solenoid? (in V/m)
What is the magnitude of the induced electric field at a point
1.30 cm
from the axis of the solenoid? (in V/m)