How does AM transmitter work?
A radio transmitter is an electronic circuit which transforms electric power from a power source, a battery or mains power, into a radio frequency alternating current to apply to the antenna, and the antenna radiates the energy from this current as radio waves.
What are the parts of transmitter?
The basic component of a transmitter are. 1. message signal 2. generator 3. antenna The correct option is A.
- message signal.
How does a low level AM transmitter work?
Figure shows the block diagram of a low-level AM transmitter. The low-level AM transmitter shown in the figure (b) is similar to a high-level transmitter, except that the powers of the carrier and audio signals are not amplified. These two signals are directly applied to the modulated class C power amplifier.
What kind of transmitter is a telephone set?
Telephone Set Transmitter. Microphone in telephony is regarded as transmitter. It is a transducer, which converts sound energy into electrical energy. There are different types of transmitters but carbon granules transmitter is the most widely used in the handset of the modern telephony.
What kind of modulation does an AM transmitter use?
High level transmitters use high level modulation, and low level transmitters use low level modulation. The choice between the two modulation schemes depends on the transmitting power of the AM transmitter. In broadcast transmitters, where the transmitting power may be of the order of kilowatts, high level modulation is employed.
Which is the output stage of an AM transmitter?
This is the output stage of the transmitter. The modulating audio signal and the carrier signal, after power amplification, are applied to this modulating stage. The modulation takes place at this stage. The class C amplifier also amplifies the power of the AM signal to the reacquired transmitting power.