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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Viewing 1 - 20 of 129 products
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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. 903-3059
Mfr. Part No.RF-LORA-868-SO
HK$173.07
Each
units
Transceiver 868 MHz FM, FSK, GFSK, GMSK, MSK, OOK 300kbit/s +20dBm -130dBm - 1.8 → 3.6V 19.95 x 23 x 1mm 1mm 23mm +85°C -40°C 19.95mm
RS Stock No. 742-4481
Mfr. Part No.QAM-RX1-433
BrandQuasar
HK$64.52
Each
units
Receiver 433 MHz AM 1kbit/s - -112dBm - 3.3V - - 16.8mm +85°C -40°C 12.5mm
RS Stock No. 731-2735
Mfr. Part No.RFM31B-868-D
BrandHopeRF
HK$77.33
Each
units
Receiver 868 MHz FSK, GFSK, OOK 256kbit/s - -121dBm SPI 1.8 → 3.6V 14 x 15.5 x 5.9mm 5.9mm 15.5mm +85°C -40°C 14mm
RS Stock No. 172-2311
Mfr. Part No.CDT-TX-02M-R
BrandLPRS
HK$1,025.95
Each (In a Tray of 20)
units
Transmitter 434 MHz MSK 1200bit/s 10mW - - 3 → 12V 35 x 53 x 12mm 12mm 53mm +60°C -20°C 35mm
RS Stock No. 783-9669
Mfr. Part No.CDT-TX-02M-R
BrandLPRS
HK$856.51
Each
units
Transmitter 434 MHz MSK 1200bit/s 10mW - - 3 → 12V 35 x 53 x 12mm 12mm 53mm +60°C -20°C 35mm
RS Stock No. 903-3034
Mfr. Part No.GAMMA-868-SO
HK$223.33
Each
units
Transceiver 868 MHz FM 9.6kbit/s +20dBm -137dBm RS232 1.8 → 3.6V - - - +85°C -40°C -
RS Stock No. 666-6757
Mfr. Part No.ALPHA-TRX433S
HK$71.47
Each
units
Transceiver 433 MHz FM 115.2kbit/s +25dBm - SPI 2.2 → 3.8V 16.1 x 15.9 x 4.2mm 4.2mm 16.1mm +85°C -40°C 15.9mm
RS Stock No. 133-759
Mfr. Part No.ER400TRS-02
BrandLPRS
HK$282.21
Each
units
Transceiver 433 MHz FSK 38.4kbit/s +10dBm -105dBm RS232 3.3 → 5.5V 38 x 4 x 14mm 14mm 38mm +85°C -40°C 4mm
RS Stock No. 704-3278
Mfr. Part No.RDF1
HK$184.88
Each
units
Receiver 433.92 MHz FM - - -103dBm - 4.5 → 5.5V - - 50.5mm +60°C 0°C 18.5mm
RS Stock No. 903-3030
Mfr. Part No.GAMMA-868
HK$317.12
Each
units
Transceiver 868 MHz FM 9.6kbit/s +20dBm -137dBm RS232 1.8 → 3.6V - - - +85°C -40°C -
RS Stock No. 762-0121
Mfr. Part No.ZULUEVAL-T
HK$1,152.12
Each
units
Transceiver 868 MHz FSK 256kbit/s +20dBm -116dBm - 2.2 → 3.6V 11 x 25 x 1mm 1mm 25mm +85°C -40°C 11mm
RS Stock No. 731-2732
Mfr. Part No.RFM22B-868-S1
BrandHopeRF
HK$104.68
Each
units
Transceiver 868 MHz FSK, GFSK, OOK 256kbit/s +20dBm -121dBm SPI 1.8 → 3.6V 16 x 16 x 4.9mm 4.9mm 16mm +85°C -40°C 16mm
RS Stock No. 887-7211
Mfr. Part No.MRF89XAM8A-I/RM
BrandMicrochip
HK$62.64
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. 793-2024
Mfr. Part No.RFM68W-868-S2
BrandHopeRF
HK$41.38
Each
units
Transmitter 868 MHz FSK, OOK 100kbit/s +10dBm - TWI 1.8 → 3.7V 15 x 14.5 x 1mm 1.7mm 15mm +70°C -20°C 14.5mm
RS Stock No. 125-1257
Mfr. Part No.RFM119W-868S1
HK$52.52
Each
units
Transmitter 868 MHz FSK - +13dBm - 2-Wire 3.6V 16 x 16 x 4.9mm 4.9mm 16mm +85°C -40°C 16mm
RS Stock No. 532-4373
Mfr. Part No.ER400RS-02
BrandEasy Radio
HK$249.31
Each
units
Receiver 433 MHz FSK 38.4kbit/s +10dBm -105dBm RS232 3.3 → 5.5V 38 x 4 x 14mm 14mm 38mm +85°C -40°C 4mm
RS Stock No. 761-9866
Mfr. Part No.ZULU-T868
HK$245.70
Each
units
Transceiver 868 MHz FSK 256kbit/s +20dBm -116dBm - 2.2 → 3.6V 13 x 25 x 3mm 3mm 25mm +85°C -40°C 13mm
RS Stock No. 672-9000
Mfr. Part No.ALPHA-RX868S
HK$35.66
Each
units
Receiver 868 MHz FM 256kbit/s - - SPI 2.2 → 5.4V 16.1 x 15.9 x 4.2mm 4.2mm 15.9mm +85°C -45°C 16.1mm
RS Stock No. 150-3927
Mfr. Part No.A001-0052-002
BrandWEPTECH
HK$195.85
Each
units
- 2.36 → 2.48 GHz FSK, GFSK, O-QPSK - - - FTDI USB, I2C, RS232, SPI, USB 3.3V 19 x 14 x 2.5mm 2.5mm 19mm - - 14mm
RS Stock No. 793-2005
Mfr. Part No.RFM64W-433S2
BrandHopeRF
HK$75.43
Each
units
Transceiver 433 MHz FSK, OOK 150kbit/s +10dBm -110dBm SPI 1.8 → 3.6V 19.7 x 16 x 1mm 1.9mm 19.7mm +70°C -20°C 16mm
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