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HOMEABOUT USINDUSTRY INFO WHAT IS AN RF MODULE (TRANSMITTER AND RECEIVER)

What is an RF Module (Transmitter and Receiver)

By sdga:NiceRF Wireless Technology Co., Ltd

About RF module

The RF module, as the name suggests, operates at Radio Frequency. The corresponding frequency range varies between 30KHz & 300GHz. In this RF system, the digital data is represented as variations in the amplitude of carrier wave. This kind of modulation is known as Amplitude Shift Keying (ASK).

 

Advantages of RF modules

Transmission through RF module is better than IR (infrared) because of many reasons. Firstly, signals through RF can travel through larger distances making it suitable for long range applications. Also, while IR mostly operates in line-of-sight mode, RF signals can travel even when there is an obstruction between transmitter & receiver. Next, RF transmission is more strong and reliable than IR transmission. RF communication uses a specific frequency unlike IR signals which are affected by other IR emitting sources.

 

Pin Diagram of RF module

Pin Diagram of RF module

 

Pin Description of RF module

RF Transmitter

Pin NoFunctionName
1Ground (0V)Ground
2Serial data input pinData
3Supply voltage: 5VVCC
4Antenna output pinANT

 

RF Receiver

Pin NoFunctionName
1Ground (0V)Ground
2Serial data output pinData
3Linear output pin: not connectedNC
4Supply voltage: 5VVCC
5Supply voltage: 5VVCC
6Ground (0V)Ground
7Ground (0V)Ground
8Antenna input pinANT
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