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庫存編號 903-3059
製造零件編號RF-LORA-868-SO
HK$163.07
單位
Transceiver 868MHz - 300kbit/s +20dBm -130dBm - 1.8 → 3.6V 19.95 x 23 x 1mm 1mm 23mm +85 °C -40 °C 19.95mm
RS庫存編號 731-2735
製造零件編號RFM31B-868-D
BrandHopeRF
HK$77.33
單位
Receiver 868MHz 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庫存編號 783-9669
製造零件編號CDT-TX-02M-R
BrandLPRS
HK$856.51
單位
Transmitter 434MHz - 1200bit/s 10mW - - 3 → 12V 35 x 53 x 12mm 12mm 53mm +60 °C -20 °C 35mm
RS庫存編號 172-2311
製造零件編號CDT-TX-02M-R
BrandLPRS
HK$1,025.95
Each (In a Tray of 20)
單位
Transmitter 434MHz - 1200bit/s 10mW - - 3 → 12V 35 x 53 x 12mm 12mm 53mm +60 °C -20 °C 35mm
RS庫存編號 903-3034
製造零件編號GAMMA-868-SO
HK$205.99
單位
Transceiver 868MHz FM 9.6kbit/s +20dBm -137dBm RS232 1.8 → 3.6V - - - +85 °C -40 °C -
RS庫存編號 133-759
製造零件編號ER400TRS-02
BrandLPRS
HK$275.77
單位
Transceiver 433MHz FSK 38.4kbit/s +10dBm -105dBm RS232 3.3 → 5.5V 38 x 4 x 14mm 14mm 38mm +85 °C -40 °C 4mm
RS庫存編號 666-6757
製造零件編號ALPHA-TRX433S
HK$70.01
單位
Transceiver 433MHz 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庫存編號 903-3030
製造零件編號GAMMA-868
HK$292.49
單位
Transceiver 868MHz FM 9.6kbit/s +20dBm -137dBm RS232 1.8 → 3.6V - - - +85 °C -40 °C -
RS庫存編號 704-3278
製造零件編號RDF1
HK$170.70
單位
Receiver 433.92MHz FM - - -103dBm - 4.5 → 5.5V - - 50.5mm +60 °C 0 °C 18.5mm
RS庫存編號 762-0121
製造零件編號ZULUEVAL-T
HK$1,152.12
單位
Transceiver 868MHz FSK 256kbit/s +20dBm -116dBm - 2.2 → 3.6V 11 x 25 x 1mm 1mm 25mm +85 °C -40 °C 11mm
RS庫存編號 731-2732
製造零件編號RFM22B-868-S1
BrandHopeRF
HK$104.68
單位
Transceiver 868MHz 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
全新
RS庫存編號 205-9936
製造零件編號2607021181000
HK$258.082
個 (在毎卷:400)
單位
RF Module 868MHz - 100kbps 14dBm - - 3.6V - - - - - -
全新
RS庫存編號 205-9943
製造零件編號2607021191010
HK$338.62
單位
RF Module 915MHz - 38.4kbps 15dBm - - 3.6V - - - - - -
RS庫存編號 793-2024
製造零件編號RFM68W-868-S2
BrandHopeRF
HK$40.86
單位
Transmitter 868MHz 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
全新
RS庫存編號 205-9937
製造零件編號2607021181000
HK$336.11
單位
RF Module 868MHz - 100kbps 14dBm - - 3.6V - - - - - -
RS庫存編號 177-9609
製造零件編號ATSAMR21B18-MZ210PA
BrandMicrochip
HK$91.75
單位
- 48MHz - - - - UART 2.7 → 3.6V - - 19.7mm +85 °C -40 °C 16.3mm
RS庫存編號 793-4408
製造零件編號T9-434-525
HK$170.98
單位
Transmitter 434MHz 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
全新
RS庫存編號 206-0000
製造零件編號2611036024001
HK$654.48
單位
- 2.4GHz FM 2000kbps -2dBm - - 3.6V - - - - - -
RS庫存編號 125-1244
製造零件編號ZETAPLUS-433-SO
HK$109.99
單位
Transceiver 433MHz 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庫存編號 657-1362
製造零件編號QFM-RX1-433
BrandQuasar
HK$133.55
單位
Receiver 433MHz FM 4800bit/s - -106dBm - 4.5 → 5.5V 13 x 44.2 x 5.5mm 5.5mm 44.2mm +85 °C -20 °C 13mm