... Keying) The circuit is build as shown in figure below. The input sine wave is multiplied by a pulse generator, which can be used as a digital data bit. Figure 5 B –II (a) ASK On-off keying ... carrier sine wave. These techniques give rise to amplitude-shift-keying (ASK), frequency-shift-keying (FSK) and phase-shift-keying (PSK), respectively. ASK describes the technique the carrier ... noise generator is a white noise for continious systems, band limited using zero-order-hold. Figure 5 B (a) ASK block parameters Noise generator Page 11 II. ASK Transmission (on-off...