PAM can be transmitted using a variety of methods, including:
* Analog transmission: In analog PAM, the amplitude of the pulses is varied in a continuous manner. This type of transmission is susceptible to noise and distortion, but it is relatively simple and inexpensive to implement.
* Digital transmission: In digital PAM, the amplitude of the pulses is varied in a discrete manner, using a set of predetermined levels. This type of transmission is less susceptible to noise and distortion than analog PAM, but it is more complex and expensive to implement.
The specific method of transmission used for PAM will depend on the application. For example, analog PAM is often used in audio systems, while digital PAM is often used in data communication systems.
Here are some additional details about PAM transmission:
* The frequency of the pulses in a PAM signal is determined by the oscillator that generates them. The amplitude of the pulses is determined by the VCA, which is controlled by the modulating signal.
* The modulation index of a PAM signal is the ratio of the peak-to-peak amplitude of the modulating signal to the peak amplitude of the pulses. The modulation index can be used to control the amount of modulation in a PAM signal.
* PAM signals can be transmitted over a variety of media, including copper wire, coaxial cable, and fiber optic cable. The type of medium used will depend on the distance over which the signal is being transmitted and the desired quality of the signal.
PAM is a versatile and widely used modulation technique that is suitable for a variety of applications.