how to learn about transmitters?

Question

we ought to learn exclisively in wireless

Answer 1

The transmitters are contained in environmentally controlled shelters located within the antenna array, under the antenna ground screen. Each shelter houses six transmitter cabinets containing two transmitters per cabinet. Each transmitter cabinet provides power to one of the antenna elements in the antenna array with one of its two transmitters connected to the north-south antenna and the other transmitter connected to the east-west antenna. Each cabinet is capable of producing up to 10 kW of power from each of its two transmitters.
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http://www.transmittersrus.com/faq.htm
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A transmitter (sometimes abbreviated XMTR) is an electronic device which with the aid of an antenna propagates an electromagnetic signal such as radio, television, or other telecommunications.

A transmitter usually has a power supply, an oscillator, a modulator, and amplifiers for audio frequency (AF) and radio frequency (RF). The modulator is the device which piggybacks (or modulates) the signal information onto the carrier frequency, which is then broadcast. Sometimes a device (for example, a cell phone) contains both a transmitter and a radio receiver, with the combined unit referred to as a transceiver.

More generally and in communications and information processing, a "transmitter" is any object (source) which sends information to an observer (receiver). When used in this more general sense, vocal cords may also be considered an example of a "transmitter".

In industrial process control a "transmitter" is any device which converts measurements from a sensor into a signal to be received, usually sent via wires, by some display or control device located a distance away. Typically in process control applications the "transmitter" will output a 4-20 mA current loop or digital protocol to represent a measured variable within a range. For example, a pressure transmitter might use 4 ma as a representation for 50 psig of pressure and 20 ma as 1000 psig of pressure and any value in between proportionately ranged between 50 and 1000 psig. Older technology transmitters used pneumatic pressure typically ranged between 3 to 15 psig (20 to 100 kPa) to represent a process variable.

Answer 2

HangSi is a expert in transmitter industry. There are much knowledge on our website.

Answer 3

You mean radio transmitters.

This is now known as RF (Radio Frequency) technology mainly.

You wrote "we ought to learn exclisively in wireless", this needs re phrased.

Answer 4

You can simply browse & learn.
The more you browse the more you learn.