In this technique, frequency of the RF carrier is varied in accordance with baseband digital input.

The short form of Frequency Shift Keying is referred as FSK.

ASK is a bandwidth efficient system but it has lower power efficiency.

It has lowest noise immunity against noise.In ASK probability of error (Pe) is high and SNR is less.ASK and depicts difference between OOK and ASK modulation types with signal diagrams. Refer OOK vs ASK modulation > which compares OOK vs. The form of ASK where in no carrier is transmitted during the transmission of logic zero is known as OOK modulation (On Off Keying modulation). Here A2 is greater in magnitude compare to A1. Often in ASK modulation, binary-1 is represented by carrier with amplitude-A2 and binary-0 is represented by carrier with amplitude-A1. no carrier).ĪSK modulation can be represented by following equation: As shown in the figure, binary 1 will be represented by carrier signal with some amplitude while binary 0 will be represented by carrier of zero amplitude(i.e. The figure depicts operation of ASK modulation. In this technique, amplitude of the RF carrier is varied in accordance with baseband digital input signal. The short form of Amplitude Shift Keying is referred as ASK. HDMI Encoder Modulator, 16in1 Digital Headend, HD RF Modulator at Input binary data is referred as modulating signal and output is referred as modulated signal. Unlike Analog modulation, here input is in digital binary form. All these are digital modulation techniques. PSK provides difference between ASK, FSK, PSK modulation types. PSK-Difference between ASK, FSK, PSK modulation

How to increase data rate ask fsk psk