TX7316ZCX developed by Texas Instruments is a type of radio frequency transmitter. It applies 45MHz or 48MHz high-frequency sine wave to the leakage cable so that the emission leakage cable generates an electromagnetic field. It is mainly composed of a signal source generating unit, a modulation and power amplification module, and a basic filtering link is added in the middle. For a power amplifier, its important function is to expand the power and get enough signal strength to radiate outward through the antenna; at the same time, the signal will not be distorted during this process.