Ebyte RD400D Digital radio module 410-470MHz TRIMATLK/TRIMMARK3/TRANSEOT
[Communication interface]：UART
[Transmission power]：30dBm
[Communication distance]： 5.6km
[Modulation method]： GMSK/4FSK
[Introduction]：RD400D is a table mounted built-in fixed-frequency transceiver-transmitter data transmission module (radio), working in the 410MHz~470MHz frequency band, focusing on surveying and mapping, precision agriculture, drones and the Internet of Things The application environment has the characteristics of light weight, small size, low power consumption and superior reception performance. It supports a variety of power gear selection, free switching of air baud rate, rich serial port baud rate selection, and easy operation.
Support for TRIMATLK, TRIMMARK3, TRANSEOT (OR PCC OR TRANSPARENT PROTOCOL).
| Main parameters | performance | remark | |
| minimum | maximum | ||
| Supply voltage (V). | 3.3 | 3.6 | More than 3 6V permanently burns out the module |
| Operating temperature(℃) | -40 | +85 | Industrial grade |
| Storage temperature (℃). | -40 | +125 | - |
| Main parameters | performance | remark | ||||
| minimum | Typical value | maximum | ||||
| Normal voltage mode | - | 3.3 | 3.6 | >3.3V guarantees output power | ||
| Communication level (V). | - | 3.3 | - | There is a risk of burning out with 5VTTL | ||
| Operating frequency band (MHz). | 410 | 450 | 470 | - | ||
| Transmit power (dBm). | High power | - | 30 | - | ±0.5dBm@3.3V DC | |
| Low power | - | 27 | - | |||
| Receive sensitivity (dBm). | - | -115 | - | @BER 10*3, 9600bps | ||
| PO wer con sum ptio n | Transmit current (mA). | - | 1066 | - | @30dBm | |
| Receive current (mA). | 50 | |||||
| Transmitter performance specifications | ||
| Main parameters | description | remark |
| RF power stability | ±ldB | - |
| Adjacent channel power | >50dB | - |
| Second harmonic | <-25 dBm | - |
| Receiver performance specifications | ||
| Main parameters | description | remark |
| Common-channel rejection | >-12dB | - |
| Adjacent channel selectivity | >50dB@25KHz | - |
| Stray immunity | >50dB | - |
| Air rate | 4800bps> 9600bps、 19200bps | TRIN1TALK supports 4800bps：9600bps, TRIMMARK3 supports 19200bps: TRANSEOT supports 4800bps and 9600bps |
| Main parameters | description | remark | |
| Reference distance | 5.6Km | Clear and open environment, height 2.0 meters. @ 30dBm, airspeed 9600bps | |
| Modulation mode | GMSK4FSK | - | |
| transmission rate | TRIMATLK | 950 bytes, s | gSerial port baud rate 115200: air baud rate 9600 |
| TRIMMARK3 | 1300 bytes； (750ms) | @Serial port baud rate 115200: air baud rate 19200 | |
| TRANSEOT | 600 bytes, s | gSerial port baud rate 115200: air baud rate 9600 | |
| Communication interface | UART | - | |
| Frequency stability | ≤±1.0ppm | - | |
| Working mode | Half duplex | - | |
| Encapsulation method | SMD | - | |
| Form factor | 33*26.5*3.7mm | ±0.1mm | |
| Antenna interface | Stamp hole, IPEX | The equivalent impedance is about 50Q | |
| Number of pins | 80 | - | |
| Product weight | 4.8g | ±0.1g | |