Model: GT-38
Chip: SI4438
Communication interface: UART 3.3V to 5V TTL level
Operating voltage: 3.2V to 5.5V
Maximum transmission power: 20dBm
Reference distance: 1200 meters
Working frequency band: 433-458.5MHz
Antenna interface: spring antenna / antenna socket
Sleep current: no sleep mode
Module size: 26.7×12.9x6mm
Description:
*Long-distance wireless transmission (1200 bps in 1200 m/FU4 mode)
*Operating frequency range: 433-458MHz, up to 255 communication channels)
*Maximum 100mW (20dBm) transmit power, and can set 8 power.
*Four working modes to adapt to different applications
*Built-in MCU, communicate through serial port and external device
*The number of bytes sent at one time is up to 256 bytes.
*The mode supports one-to-one, one-to-many, many-to-many connections
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