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 61 - 80 of 131 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. 793-2005
Mfr. Part No.RFM64W-433S2
BrandHopeRF
HK$88.32
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
RS Stock No. 617-1811
Mfr. Part No.QAM-TX3
BrandQuasar
HK$43.09
Each
units
Transmitter 433.92 MHz AM, ASK 3000Hz +10dBm - - 3 → 12V 5.2 x 7.08 x 1.8mm 1.8mm 7.08mm +85°C -20°C 5.2mm
New
RS Stock No. 200-7273
Mfr. Part No.NC2400C
BrandNeoCortec
HK$107.08
Each
units
- - - - - - - - - - - - - -
RS Stock No. 181-2481
Mfr. Part No.LAMBDA62C-9D
HK$167.25
Each
units
Transceiver 915 MHz FM 300kbit/s - -148dBm SPI 1.6 → 3.3V 26.95 x 19.95 x 1mm 1mm 26.95mm +85°C -40°C 19.95mm
RS Stock No. 657-1362
Mfr. Part No.QFM-RX1-433
BrandQuasar
HK$133.55
Each
units
Receiver 433 MHz FM 4800bit/s - -106dBm - 4.5 → 5.5V 13 x 44.2 x 5.5mm 5.5mm 44.2mm +85°C -20°C 13mm
RS Stock No. 122-5255
Mfr. Part No.GAMMA-868R
HK$315.06
Each
units
Transceiver 868 MHz FM 9.6kbit/s +20dBm -121dBm - 4 → 9V 8 x 51 x 20mm 20mm 51mm +85°C -40°C 8mm
RS Stock No. 177-4867
Mfr. Part No.ERA400TRS
BrandLPRS
HK$218.051
Each (In a Tray of 50)
units
Transceiver 433 MHz ASK, FSK, GFSK 115.2kbit/s +10dBm -117dBm RS232, UART 2.5 → 5.5V 38 x 4 x 14mm 14mm 38mm +85°C -40°C 4mm
RS Stock No. 136-7687
Mfr. Part No.ERA900TRS-FCC
BrandLPRS
HK$249.79
1 Box of 1
Box(es)
Transceiver 868 → 926 MHz ASK (AM), FSK (FM) 2.4 → 115.2 (Receiver) kbit/s, 38400 (Transmitter) bit/s 5mW -117 dBm @ 2.4 kbit/s RS232 2.5 → 5.5V 38 x 4 x 14mm 14mm 38mm +85°C -40°C 4mm
RS Stock No. 125-1247
Mfr. Part No.ZETAPLUS-868-D
HK$134.04
Each
units
Transceiver 868 MHz FM 500kbit/s +13dBm -116dBm Serial 1.8 → 3.6V 16 x 16.5 x 1mm 1mm 16.5mm +85°C -40°C 16mm
RS Stock No. 122-5258
Mfr. Part No.ZETA-868-D
HK$94.83
Each
units
Transceiver 868 MHz FM 500kbit/s +13dBm -116dBm SPI 1.8 → 3.6V 16 x 16.5 x 2mm 2mm 16.5mm +85°C -40°C 16mm
RS Stock No. 146-5909
Mfr. Part No.Lazurite 920J
BrandLapis
HK$387.93
Each
units
Xbee Shield 920 MHz - 100kbit/s - - - 15V dc - - - - - -
RS Stock No. 125-8208
Mfr. Part No.QAM-RX10-433
HK$32.11
Each
units
- - - - - - - 5V dc - - - - - -
RS Stock No. 184-0450
Mfr. Part No.ATSAMR30M18A-I/RM100
BrandMicrochip
HK$44.949
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. 180-7557
Mfr. Part No.RN2903A-I/RM105
BrandMicrochip
HK$110.44
Each (In a Tray of 50)
units
Transceiver 902 → 928 MHz FSK, GFSK, LoRa 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. 762-0125
Mfr. Part No.ZULUEVAL-M
HK$991.62
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. 793-2018
Mfr. Part No.RFM65W-868-S2
BrandHopeRF
HK$81.26
Each
units
Receiver 868 MHz FSK, GFSK, GMSK, MSK, OOK 300kbit/s - -120dBm SPI 1.8 → 3.6V 19.7 x 16 x 1mm 1.9mm 19.7mm +70°C -20°C 16mm
RS Stock No. 181-2476
Mfr. Part No.LAMBDA-9S
HK$155.85
Each
units
Transceiver 915 MHz FM 300kbit/s 10mW -130dBm - 1.8 → 3.3V 26.95 x 19.95 x 1mm 1mm 26.95mm +85°C -40°C 19.95mm
RS Stock No. 145-2336
Mfr. Part No.BP35C2
BrandROHM
HK$1,284.72
Each
units
Wireless 922.5 → 927.9 MHz - - 20mW -103dBm USB - 49.7 x 21.4 x 8.5mm 8.5mm 49.7mm +50°C -20°C 21.4mm
RS Stock No. 146-5906
Mfr. Part No.Lazurite 920J
BrandLapis
HK$353.68
1 Box of 1
Box(es)
Xbee Shield 920 MHz - 100kbit/s - - - 15V dc - - - - - -
RS Stock No. 532-4367
Mfr. Part No.ER400TS-02
BrandEasy Radio
HK$223.10
Each
units
Transmitter 433 MHz FSK 38.4kbit/s +10dBm - RS232 3.3 → 5.5V 38 x 4 x 14mm 14mm 38mm +85°C -40°C 4mm
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