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$134.44
單位
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庫存編號 742-4481
製造零件編號QAM-RX1-433
BrandQuasar
HK$60.29
單位
Receiver 433 MHz AM 1kbit/s - -112dBm - 3.3V - - 16.8mm +85°C -40°C 12.5mm
RS庫存編號 731-2735
製造零件編號RFM31B-868-D
BrandHopeRF
HK$65.82
單位
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 434 MHz MSK 1200bit/s 10mW - - 3 → 12V 35 x 53 x 12mm 12mm 53mm +60°C -20°C 35mm
RS庫存編號 783-9669
製造零件編號CDT-TX-02M-R
BrandLPRS
HK$808.07
單位
Transmitter 434 MHz MSK 1200bit/s 10mW - - 3 → 12V 35 x 53 x 12mm 12mm 53mm +60°C -20°C 35mm
RS庫存編號 666-6757
製造零件編號ALPHA-TRX433S
HK$71.28
單位
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庫存編號 903-3034
製造零件編號GAMMA-868-SO
HK$226.11
單位
Transceiver 868 MHz 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$231.60
單位
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庫存編號 704-3278
製造零件編號RDF1
HK$185.61
單位
Receiver 433.92 MHz FM - - -103dBm - 4.5 → 5.5V - - 50.5mm +60°C 0°C 18.5mm
RS庫存編號 903-3030
製造零件編號GAMMA-868
HK$255.16
單位
Transceiver 868 MHz FM 9.6kbit/s +20dBm -137dBm RS232 1.8 → 3.6V - - - +85°C -40°C -
RS庫存編號 762-0121
製造零件編號ZULUEVAL-T
HK$958.00
單位
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庫存編號 731-2732
製造零件編號RFM22B-868-S1
BrandHopeRF
HK$89.10
單位
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庫存編號 793-4408
製造零件編號T9-434-525
HK$178.52
單位
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庫存編號 731-2748
製造零件編號RFM42B-868-D
BrandHopeRF
HK$54.06
單位
Transmitter 868 MHz FSK, GFSK, OOK 256kbit/s +20dBm - 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 505-6749
製造零件編號R7G-434.075
HK$345.11
單位
Receiver 434 MHz FM 20kbit/s - -117dBm - 4.5 → 5.5V 48 x 8.3 x 17mm 17mm 48mm +55°C -10°C 8.3mm
RS庫存編號 172-9310
製造零件編號XB8-DMRS-002
HK$406.075
Each (In a Tray of 36)
單位
Transceiver 863 → 870 MHz - 80kbit/s 25mW -101dBm - 2.7 → 3.6V dc 33.8 x 22.1 x 3mm 3mm 33.8mm +85°C -40°C 22.1mm
RS庫存編號 731-2779
製造零件編號RFM02--868-S1
BrandHopeRF
HK$41.20
單位
Transmitter 868 MHz FSK 115.2kbit/s +8dBm - SPI 2.2 → 5.4V 15.9 x 16.1 x 4.2mm 4.2mm 16.1mm +85°C -40°C 15.9mm
RS庫存編號 181-2471
製造零件編號ZPT-4RS
HK$71.24
單位
- 433 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庫存編號 181-2476
製造零件編號LAMBDA-9S
HK$119.87
單位
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庫存編號 133-715
製造零件編號LC-TX458E-R
BrandLPRS
HK$600.36
單位
Transmitter 458 MHz FM, NBFM - - - - - - - - - - -