Objectives of this experiment:
1. To demonstrate how a carrier's instantaneous phase angle is made to vary in proportion to the modulating signal's amplitude.
2. To demonstrate the effect of frequency deviation when the modulating signal crosses zero axis.
3. To demonstrate how phase change occurs when the modulating wave changes polarity from + to - and from - to +. To demonstrate why phase modulation is some times called as indirect FM.

Built in regulated power supply: + 15V/300mA Input Supply: 230 VAC/50Hz mains operated. Dimension: 27cms x 17cms x 10cms. Weight: 500gms