I know that radiowaves from radiostations are modulated either F.M or A.M .
Lets suppose they are F.M and one has carrier wave frequency of 100 Hz and other 200 Hz they have F deviation of 20Hz/V .
Now suppose same information signal (Amplitude = 2V and frequency = 10Hz) is passed onto each station.
They both will have bandwith of (60-140 Hz) and (160-240 Hz) respectivly and these Frequencies will change 10 times in 1 second in both cases.
now interference requires constant phase difference and since in both cases frequencies change at same rate should'nt interference occur?
Which means if 2 radiostations have same song being played, should'nt the louder sound be heared from either of these stations?