Telemetry Receivers and Telemetry Transmitters from RS Components, Ltd.


7312748 -- View Larger Image

The RFM42B-868 is a highly integrated, low-cost 868MHz ISM-band transmitter module. The direct digital transmit modulation and automatic PA power ramping ensure precise transmit modulation and reduced spectral spreading ensuring compliance with global regulations including FCC & ETSI. An easy-to-use calculator is provided to quickly configure the radio settings, simplifying customers system design and reducing time to market.
Carrier Frequency Range: 848 to 888MHz. RF Output Power: +1 to +20dBm. Data Rate = 0.123 to 256kbps. Modulation: FSK, GFSK or OOK. Wake-up timer. Frequency hopping capability. On-chip crystal tuning. Integrated 32kHz RC or 32kHz crystal. Power-on-reset (POR). Configurable packet handler. Tx 64-byte FIFO. Low battery detector. Temperature sensor and 8-bit ADC. SPI serial data interface. Power Supply: +1.8 to +3.6Vdc. Low Power Consumption: 85mA @ +20dBm. Ultra low power shutdown mode. Operating temperature range: -40 to +85°C. Integrated voltage regulators. Package style: 14-Pin DIP module (RS 731-2748), 16-Pin SMD module (RS 731-2741). Applications: Remote control, Home security, Telemetry, Personal data logging, Tyre pressure monitoring, Wireless PC peripherals, Remote meter reading, Remote keyless entry, Home automation, Industrial control, Sensor networks, Health monitors and the Internet-of-Things (IoT)
Module Type = Transmitter
Supported Frequency Bands = 868 MHz
Modulation Technique = FSK, GFSK, OOK
Maximum RF Data Rate = 256kbit/s
Maximum Output Power = +20dBm
Supported Bus Interfaces = SPI
Supply Voltage = 1.8 - 3.6V
Dimensions = 14 x 15.5 x 5.9mm
Height = 5.9mm
Length = 15.5mm


Product Category
Telemetry Receivers and Telemetry Transmitters
Device Type
Operating Frequency
868 MHz
Data Rate
256 kbps
Output Power
20 dBm
RF Modulation
Supply Voltage
Communication Interface
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