You should eat a light and healthy meal before you are supposed to begin fasting prior to surgery. Avoid heavy foods with a lot of unhealthy fats, as they take a long time to digest; for example, loading up on pizza the night before an operation is not a good idea.
Amplitude modulation compared to Pulse position modulation'?   Amplitude modulation (AM) is a technique used in electronic communication, most commonly for transmitting information via a radio carrier wave. AM works by varying the sâ¦trength of the transmitted signal in relation to the information being sent.
There are three major classes of digital modulation techniques used for transmission of digitally represented data: 1  Amplitude-shift keying (ASK) 2  Frequency-shift keying (FSK) 3  Phase-shift keying (PSK) is a digital modulation process which conveys data by changing (modulating) the phase of a reference signal (the carrier wave). The modulation occurs by varying the sine and cosine inputs at a precise time. It is widely used for wireless LANs, RFID and Bluetooth communication.