-- The power output stage in the transmitter must be operated either class A or
class B. Whereas in FM the power output stage in the transmitter can operate class C
which uses much less power per watt delivered to the antenna.
-- For full modulation, audio power is required equal to 1/2 of the RF power of the
transmitter output stage.
-- At full modulation, 2/3 of the total power arriving at the receiver is at the carrier
frequency, which conveys none of the information.
-- A receiver designed for AM reception is susceptible to a wide variety of natural
and man-made noise.
I think it is Frequency Modulation with Phase modulation which it the most bandwidth efficient
Frequency modulation have some advantages over amplitude modulation, FM is not sensitive to the amplitude noise, and have high efficient use of transmitted power
Without modulation, there's be no way to get any information onto a carrier signal. There are several different types of modulation schemes for radio carriers and almost as many different types demodulators to decode the information so that it can be converted into a usable form. For instance, AM (amplitude modulation), FM (frequency modulation), digital modulation, quadrature amplitude, etc.
It is a way to see differentences between items. Like: Cow is to barn as elephant is to zoo.
AM - Amplitude Modulation FM - Frequency Modulation
modulation
Frequency Modulation and Phase Modulation
frequency modulation..
due to velocity modulation density modulation occurs in TWT
The difference between frequency modulation and phase modulation is that with frequency modulation the angular frequency of the signal is modified while with the phase modulation, the phase angle of the signal is modified.
the modulation system is of FM
i dont know ans. of this.