The architecture of a transmitter varies considerably depending on the application, particularly because this is a single frequency, as in broadcasting, as in several stations radio, communications broadband and military, radio amateur, and depending on the type of modulation.
The transmitter modulation mere single frequency amplitude, comprising: a carrier frequency of the source, usually after a crystal oscillator, an amplifier amplitude current modulated the amplifiedsignal, an antenna coupled to the output of the amplifier.
"Levels signal" comprising oscillator, broadcasting, low floors, or modulator, or a filter to generatethe modulated carrier to indicate the power of a few watts.
They are called excited. The power amplifier following is sometimes called simply "sender".
HF, VHF or UHF the radio, the need for a frequency or selected channel may result in a change of frequency architecture, similar to a receiver and for modulation of a filter fixed frequency.
Radar power, the system the simplest is a self-oscillator amplifiers magnetron replaced for processing radar signal.