Eccel Technology Ltd Chilli-USB-B1 (000373) RFID Reader 13.56MHz, 4.5 → 5.5V

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Eccel Technology Ltd Pepper Wireless C1 EA USB Module 13.56MHz, 3V

Eccel Technology Ltd Chilli-RS232-B1 (000372) RFID Reader 13.56MHz, 4.5 → 25V

Siemens 6GT2002-1HD01 Module, 24V dc

Siemens 6GT2002-0HD01 RF RF Module Module, 24V dc

Siemens 6GT2801-3AB20-0AX0 Module, 24V dc

Eccel Technology Ltd Chilli-UART-B1 (000371) RFID Reader 13.56MHz

Legrand 0 767 11 Module

Siemens 6GT2002-0JE20 RF RF Module Module, 24V


An RF module, also commonly referred to as a radio frequency module, is a small electronic device that is used to transmit and receive radio signals between two devices, and is also used in embedded systems to facilitate wireless communication connections. RS offer a varied range of RF modules from several brands across the industry, including Eccel Technology, ON Semiconductor, RF Solutions, Wurth Elektronik, and many more.

### What is the main function of an RF module?

Radio frequency modules are the biggest facilitator of wireless communication, this is because it does not require a line of sight. This is in contrast to its usual alternative, Infrared, which mostly operates in line of sight mode. It spans between a range of 3 kHz and 300 GHz, with the lower end being applied in applications such as submarines and radio stations whilst the higher spectrum is used in applications such as GPS, Wi-Fi, Bluetooth and TV broadcasting. An RF module is typically used with a pair of encoder/decoders. The encoder is used for encoding parallel data for transmitting whilst the reception is decoded by a decoder. Some of the main functions of an RF Module are:

- Act as a transmitter of signals
- A solution for detecting radio signals
- Bridging communication between two devices
- RF can stretch communication between applications
- Acts as a receiver module

The performance of radio frequency applications is dependent on a few factors. Through increasing a transmitter's power, a larger communication range can be attained. This also causes a power drain from the power source which could result in a shorter life span for battery-powered devices. Through the use of higher transmitted power, interference with other radio frequencies can occur.

### Typical applications of an RF module
- Car alarm systems
- Remote controls
- Sensor reporting
- Automation systems


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