‫Now we come to the question that whole analog frequency modulation and how analog fears more relation
‫is generated using the cartridge or amplitude modulation in the SD.
‫Now, we know that this is the equation of the sinusoid.
‫Ah, in other words, this is the equation of the Gadhia and this is the frequency of the carrier.
‫And this is the initial phase of the carrier.
‫Now this portal phase can be represented as 230, where 230 is called as the generalised angle.
‫Now this treaty is equal to Vangent inverse of Q over.
‫In other words, we can see that by varying the eye and by varying dequeue, we can generate different
‫values of Peter.
‫Now in the case of here's modulation, this 230 is equal to this quantity are in other words, in the
‫case of fierce modulation.
‫We vary the TTR in proportion to the message signal.
‫We are gilfry is the proportionality constant are in other words, in the case of fears modulation,
‫we vary the eye and dequeue in such a way that DTT is varied in proportion to the message signal.
‫While in the case of frequency modulation, D 230 is equal to this quantity here, 230 is being varied
‫in proportion to the integral of the message signal are.
‫In other words, we vary the eye and dequeue in such a way that the Tita is varied in proportion to
‫the integral ofthe message signal.
‫In the case of frequency modulation.
‫So this is how that in the SDR is using the quadrature amplitude more relation.
‫We can generate the analog phase modulation and the analogue frequency modulation.