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. 125-1256
Mfr. Part No.RFM119W-433S1
HK$53.55
Each
units
Transmitter 433 MHz FSK - +13dBm - 2-Wire 3.6V 16 x 16 x 4.9mm 4.9mm 16mm +85°C -40°C 16mm
New
RS Stock No. 200-7273
Mfr. Part No.NC2400C
BrandNeoCortec
HK$107.08
Each
units
- - - - - - - - - - - - - -
RS Stock No. 181-2475
Mfr. Part No.ZPT-8RD
HK$129.45
Each
units
- 868 MHz FM - - -121dBm Serial 1.8 → 3.6V 19.25 x 16.5 x 1mm 1mm 19.25mm +85°C -20°C 16.5mm
RS Stock No. 181-2482
Mfr. Part No.LAMBDA80-24S
HK$117.43
Each
units
Transceiver 2.4 GHz FLRC, GFSK, LoRa 2.02 (FSK) Mbit/s, 476 (LoRa) bit/s 12.5dBm -132dBm SPI 1.8 → 3.7V 19.95 x 26.95 x 2mm 2mm 19.95mm +85°C -40°C 26.95mm
RS Stock No. 672-9007
Mfr. Part No.SMARTALPHA-433
HK$156.89
Each
units
Transceiver 433 MHz GFSK 86.2kbit/s 0dBm -110dBm USB 2.3 → 3.6V - - 23.7mm +80°C -20°C 26mm
RS Stock No. 136-7709
Mfr. Part No.LC-STD-601-400
BrandLPRS
HK$724.08
Each
units
Transceiver 400 MHz FSK 1200 bit/s, 2400 bit/s, 4800 bit/s, 9600 bit/s, 19200 bit/s 50mW -117 dBm @ 4800 bit/s UART 3 → 5V 20 x 5 x 32mm 32mm 20mm +75°C -30°C 5mm
RS Stock No. 793-4408
Mfr. Part No.T9-434-525
HK$209.74
Each
units
Transmitter 434 MHz FM 57kbit/s +13dBm -121dBm Serial 2.2 → 12V 3 x 31.5 x 10.5mm 10.5mm 31.5mm +55°C -10°C 3mm
RS Stock No. 783-9625
Mfr. Part No.ERA400TRS
BrandLPRS
HK$211.70
Each
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. 532-4351
Mfr. Part No.ER900TRS-02
BrandEasy Radio
HK$266.09
Each
units
Transceiver 868 MHz, 915 MHz FSK 38.4kbit/s +10dBm -105dBm RS232 3.3 → 5.5V 38 x 4 x 14mm 14mm 38mm +85°C -40°C 4mm
New
RS Stock No. 192-6583
Mfr. Part No.ZPT-8TD
HK$97.89
Each
units
Transmitter 868 MHz FM - - -121dBm - 1.8 → 3.6V 16.5 x 19.25 x 1mm 1mm 16.5mm +85°C -20°C 19.25mm
RS Stock No. 187-1857
Mfr. Part No.ATSAMR34J18B-I/7JX
BrandMicrochip
HK$51.72
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. 532-4373
Mfr. Part No.ER400RS-02
BrandEasy Radio
HK$267.01
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. 177-1351
Mfr. Part No.eRIC-LoRa
BrandLPRS
HK$216.932
Each (In a Box of 100)
units
Transceiver 868 MHz FSK, GFSK, OOK - - 137dBm - 2.5 → 6V 15 x 20 x 2.2mm 2.2mm 15mm +85°C -40°C 20mm
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. 187-1558
Mfr. Part No.ATSAMR34J18B-I/7JX
BrandMicrochip
HK$49.879
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
RS Stock No. 111-0159
Mfr. Part No.KAPPA-M868
HK$188.36
Each
units
Transceiver 868 MHz FM 57.6kbit/s +13dBm -102dBm RS232 2.4 → 3.6V 31.5 x 11 x 2.5mm 2.5mm 31.5mm +85°C -40°C 11mm
RS Stock No. 783-9616
Mfr. Part No.ERA-ARDUINO-S900
BrandLPRS
HK$446.76
Each
units
Transceiver 868 MHz, 915 MHz - 115.2kbit/s +7dBm -117dBm - 5V 68 x 52 x 10mm 10mm 68mm +85°C -40°C 52mm
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. 180-7556
Mfr. Part No.RN2483A-I/RM105
BrandMicrochip
HK$110.44
Each (In a Tray of 50)
units
Transceiver 868 MHz LoRa 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. 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
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