AM TRANSMITTERS

Working of AM Transmitter is as follows.

OSCILLATOR – TPRA – DRIVER – PA – FILTER NETWORK – AUDIO FILTER – PRE AMP – CORRECTOR – AF DRIVER – MOD TRANSFER – CONTROL SUPERVISION  – COOLING VENTILATION – DC SUPPLIES – POWER DISTRIBUTION

There are various MW AM Transmitters all over the India. The SW transmitters are few and used for mostly international broadcasting purpose but soon will vanish. The transmission bands used for are as follows,

AM Transmission bands

Long wave 200-400 KHz

Medium wave 531-1602 KHz

Short wave 3.2-26.1 MHz

Sub system of a transmitter

1. Radio frequency section
2. Audio frequency section
3. Control and Instrumentation
4. Cooling and ventilation
5. Power supply system
6. HT supply

Author Bio: The Author of this article, Sreejith is writing articles onMonochrome TV Transmitter and Electronics and Communications