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//Chapter 7, Example 7.6, page 309
clc
//Initialisation
pt=500 //Transmitter power in mW
gt=42 //transmitter antenna gain in dB
gr=44 //receiver antenna gain in dB
lbt=2.6 //transmitter branching loss in dB
lbr=3 //receiver branching loss in dB
flt=45 //transmitter feeder length
flr=35 //receiver feeder length
fls=6.5 //feeder loss
prx=-72 //Receiver sensitivity
d=30 //path distance in km
f=8.4 //frequency in ghz
//Calculation
ptx=10*log10(pt) //transmitter threshold level
lft1=flt*fls/100
lfr=flr*fls/100
eirp=ptx+gt-lbt-lft1 //Transmitter effective power
sg=ptx-prx
fsl=92.4+20*log10(f)+20*log10(d)
rsl=ptx+gt+gr-fsl-lft1-lfr-lbt-lbr
fm=rsl-prx
//Results
printf("EIRP = %.2f dBm",eirp)
printf("\nSG = %.2f dBm",sg)
printf("\nFSL = %.2f dB",fsl)
printf("\nRSL = %.2f dBm",rsl)
printf("\nFM = %.2f dB",fm)
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