FOUR CHANNEL WIRELESS TRANSMITTER AND RECEIVER

1. FOUR CHANNEL WIRELESS TRANSMITTER AND RECEIVER

2. Contents 1 Introduction. 2 Transmitter description Receiver description 3 Characteristic of wireless system 4

3. Introduction • The Wireless KT4A Transmitter and KR4A, KR4B Receiver send and receive data at 418 MHz . • These new kits have four data inputs and outputs and they use our GL-104 encoder/decoder with advantages over other manufacturer’s devices. • Four data bits can be transmitted individually or simultaneously and data outputs can be momentary or cumulatively latched. • The maximum data rate that can be fed into the KT4A transmitter is 20 transitions per second. The block diagram below shows the functions of the encoder and decoder.

5. Transmitter description

6. Con. Transmitter description • This system consist of encoder , transmitter and antenna. • The encoder take the inputs and encode it with many codes then send this codes to the transmitter. • The transmitter take the codes and send it as a signal to antenna. • The antenna send signal wireless.

7. Receiver Description

8. Con . Receiver Description • This system consist of decoder , receiver and antenna. • The antenna received signal wireless. • After it received the receiver transform it to code. • The code go to the decoder then return it as outputs.

9. Characteristic of wireless system • Connect between distance places without need cable. • Low cost. • Easy to use. • Performance & security. • Send many type of data.