Chapeter 17 Satellite communication

Example 17.1 Page no 678

In [3]:
#Given
stn_long = 95
stn_lat = 30
sat_long =121
rad_pos = 137


#Calculation
azimuth = 360-rad_pos

#Result
print"The elevation setting for the antenna is 45 degree"
print"The azimuth setting for the antenna is ",azimuth,"degree"

The elevation setting for the antenna is 45 degree
The azimuth setting for the antenna is  223 degree

Example 17.2 Page no 681

In [1]:
#Given
flo = 2*10**9
fd =3840*10**6
B =36*10**6

#Calculation
fu =fd+flo
C =2*B

#Result
print"The uplink frequency is ",fu/10.0**9,"GHz"
print"The data rate is ", C/10**6,"Mbps"

The uplink frequency is  5.84 GHz
The data rate is  72 Mbps

Example 17.3 Page no 691

In [3]:
#Given
fs = 4.08*10**9
fIF1 = 770*10**6
fIF2 = 140*10**6

#Calculation
flo1 = fs - fIF1
flo2 = fIF1 - fIF2

#Result
print"The local oscillator frequency for first IF is ",flo1/10**6,"MHz"
print"The local oscillator frequency for the second IF is ",flo2/10**6,"MHz"

The local oscillator frequency for first IF is  3310.0 MHz
The local oscillator frequency for the second IF is  630 MHz