Long-range RF Transceiver Module in 2.4 GHz
PART NO : RDM-T24FZ-LR-SMA ( External antenna)/RDM-T24FZ-LR-CA ( Integrated chip antenna)
The Long-range RF Transceiver Module in 2.4 GHz is a low-cost 2.4 GHz transceiver designed for very low-power wireless applications is available with external antenna and integrated chip antenna.



The circuit is mainly intended for the 2400-2483.5 MHZ ISM (Industrial, Scientific and Medical) and SRD (Short Range Device) frequency band. The RF transceiver is integrated with a highly configurable base band modem. The modem supports various modulation formats and has a configurable data rate up to 500 kBaud. Long-range RF Transceiver Module in 2.4 GHz provides extensive hardware support for packet handling, data buffering, burst transmissions, clear channel assessment, link quality indication, and wake-on-radio. The main operating parameters and the 64-byte transmit/receive FIFOs of this Long-range RF Transceiver Module in 2.4 GHz can be controlled via an SPI interface. A 4-wire SPI serial interface is used for configuration and data buffer access.


  • Industrial monitoring and control
  • Home and building automation
  • Automatic Meter Reading
  • Low-power wireless sensor networks
  • Consumer electronics
  • Wireless medical applications
  • Security systems
  • Automotive systems
  • Active RFID solutions

Parameters Value
Part Number RDM-T24FZ-LR-SMA(External antenna)
RDM-T24FZ-LR-CA(Integrated chip antenna)
Frequency 2400-2483.5 MHz
Interface Single board transceiver with SPI Interface
Receiver Sesitivity High receiver sensitivity of -104 dBm
Supply Voltage 1.8 V to 3.6 V
Power Consumption In Receive mode: 17 mA
  In Transmit mode: 112 mA at +20dbm
  < 1uA in power down mode
RF Output Power Programmable output power up to +20 dBm
Data Rate 1.2 kbps to 500kbps
Modulation OOK, 2 FSK, GFSK and MSK supported
Antenna Options SMA - Whip Antenna
CA - Integrated chip Antenna
Dimension 5.2 x 3.2 x 1.2 (L x W x H) in cms
Weight 5 gms
Operating Temperature -40° to + 85°C
Compliance FCC: Yes
IC: Yes
Europe/ETSI: Yes
RoHS: Yes
Other Features Digital RSSI output
  Programmable carrier sense (CS) indicator
  Optional automatic whitening and de-whitening of data
  Wake-on radio functionality for automatic low-power RX polling
  Separate 64-byte TX and RX data FIFOs (enables burst mode data transmission)
Data Sheet Download
Application Note Download
Sample Code Download