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//Variable Decalration
LU=200 //Uplink propogation loss(dB)
LD=196 //Downlink propogation loss(dB)
GE=25 //Receiving gain of earth station(dB)
GE1=25 //Transmit gain of E1 in the direction of S(dB)
GS=9 //receive gain of S in the direction of E1(dB)
GS1=9 //Transmit gain of satellite S1 in the direction of E(dB)
GTE=48 //Transmit gain of E(dB)
GRE=48 //Receive gain of E(dB)
GRS=19 //Receive gain of S(dB)
GTS=19 //Transmit gain of S(dB)
US=-60 //Maximum power spectral density(dBJ)
US1=1 //Maximum power spectral density(uJ)
UE1=10 //Maximum power spectral density transmitted by earth station(uJ)
UE=-50 //Maximum power spectral density transmitted by earth station(dBJ)
k=-228.6
//Calculation
URS=UE+GTE+GRS-LU//Received power spectral density at satellite S(dB)
URE=US+GTS+GRE-LD//Received power spectral density at satellite E(dB)
y=URE-URS //Transmission gain for network R(dB)
I1=US+GS1+GE-LD //Interference received by earth station(dB)
I2=UE+GE1+GS-LU //Uplink Interference(dB)
delTE=I1-k //Earth station receiver input(dBK)
delTE=10**(delTE/10) //Earth station receiver input(K)
delTS=I2-k //Noise temperature at satellite receiver input(dBK)
delTSE=y+delTS //Noise Temperature rise(dBKelvin)
delTSE=10**(delTSE/10) //Noise Temperature rise(Kelvin)
delT=delTSE+delTE //Equivalent noise temperature rise
disp(URE)
disp(URS)
//Results
printf("The transmission gain is %.f dB",y)
printf("The interference levels I1 an I2 are %.f %.f dBJ respectively",I1,I2)
printf("The equivalent temperature rise overall is %.2f Kelvin",delT)
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