RF Modules

What is a RF Module?
A RF Module is commonly referred to as a “radio frequency” module, it is a small electronic device that is used to transmit and receive radio signals between two devices. A RF Module is usually 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.

What is the main function of a 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. Some of the main functions of a 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
• Acts as a transmitter

Did you know?
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, an interference with other radio frequencies can occur.

Typical Applications of a RF Module
• Car alarm systems
• Remote controls
• Sensor reporting
• Automation systems

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Description Price Module Type Supported Frequency Bands Modulation Technique Maximum RF Data Rate Maximum Output Power Receiver Sensitivity Supported Bus Interfaces Supply Voltage Dimensions Height Length Maximum Operating Temperature Minimum Operating Temperature Width
RS stock no. 772-9499
Mfr. Part No.MRF89XAM8A-I/RM
BrandMicrochip
R 131.45
Each
units
- - FSK, OOK - - - - - 27.94 x 17.78 x 1.91mm 1.91mm 27.94mm +85°C -40°C 17.78mm
RS stock no. 887-7211
Mfr. Part No.MRF89XAM8A-I/RM
BrandMicrochip
R 123.986
Each (In a Tray of 54)
units
- - FSK, OOK - - - - - 27.94 x 17.78 x 1.91mm 1.91mm 27.94mm +85°C -40°C 17.78mm
RS stock no. 180-7557
Mfr. Part No.RN2903A-I/RM105
BrandMicrochip
R 175.621
Each (In a Tray of 50)
units
Transceiver 902 → 928 MHz - 300 (FSK) kbps, 12500 (LoRa) bps 18.5dBm -146dBm - 2.1 → 3.6V 17.8 x 26.7 x 3.34mm 3.34mm 17.8mm +80°C -40°C 26.7mm
RS stock no. 184-0450
Mfr. Part No.ATSAMR30M18A-I/RM100
BrandMicrochip
R 74.606
Each (In a Tray of 136)
units
RF Module 1 GHz BPSK, O-QPSK 1000kbit/s 8.7dBm -105dBm USB 1.8 → 3.63V 12.7 x 11 x 2.71mm 2.71mm 12.7mm +85°C -40°C 11mm
RS stock no. 180-7568
Mfr. Part No.RN2903A-I/RM105
BrandMicrochip
R 195.63
Each
units
Transceiver 902 → 928 MHz - 300 (FSK) kbps, 12500 (LoRa) bps 18.5dBm -146dBm - 2.1 → 3.6V 17.8 x 26.7 x 3.34mm 3.34mm 17.8mm +80°C -40°C 26.7mm
RS stock no. 180-7556
Mfr. Part No.RN2483A-I/RM105
BrandMicrochip
R 175.617
Each (In a Tray of 50)
units
Transceiver 868 MHz - 300 (FSK Modulation) kbit/s, 10937 (LoRa Modulation) bit/s 14.1dBm -146dBm UART 3.6V 26.7 x 17.8 x 3.34mm 3.34mm 26.7mm +85°C -40°C 17.8mm
RS stock no. 180-7566
Mfr. Part No.RN2483A-I/RM105
BrandMicrochip
R 195.63
Each
units
Transceiver 868 MHz - 300 (FSK Modulation) kbit/s, 10937 (LoRa Modulation) bit/s 14.1dBm -146dBm UART 3.6V 26.7 x 17.8 x 3.34mm 3.34mm 26.7mm +85°C -40°C 17.8mm
RS stock no. 187-1857
Mfr. Part No.ATSAMR34J18B-I/7JX
BrandMicrochip
R 95.855
Each (In a Pack of 2)
units
Transceiver 137 → 175 MHz, 410 → 525 MHz, 862 → 1020 MHz - 12Mbit/s 20dBm -148dBm USB 1.8 → 3.6V - - 6mm +85°C -40°C 6mm
RS stock no. 184-0459
Mfr. Part No.ATSAMR30M18A-I/RM100
BrandMicrochip
R 85.21
Each
units
RF Module 1 GHz BPSK, O-QPSK 1000kbit/s 8.7dBm -105dBm USB 1.8 → 3.63V 12.7 x 11 x 2.71mm 2.71mm 12.7mm +85°C -40°C 11mm
RS stock no. 187-1558
Mfr. Part No.ATSAMR34J18B-I/7JX
BrandMicrochip
R 87.279
Each (In a Tray of 429)
units
Transceiver 137 → 175 MHz, 410 → 525 MHz, 862 → 1020 MHz - 12Mbit/s 20dBm -148dBm USB 1.8 → 3.6V - - 6mm +85°C -40°C 6mm