[IC]：AX5243
[Fréquence]：225~237.6MHz
[Puissance]：24~33dBm
[Distance]：8.0km
[Interface]：UART
[Poids]：23.6±0.1g
[Introduction]：E31-230T33D est un module émetteur-récepteur sans fil de 2W fonctionnant sur 225-237.6MHz (230MHz par défaut) avec des tensions d'alimentation de 3.3V et 5V. Il est doté d'un algorithme FEC (Forward Error Correction) et d'une fonction de cryptage et de compression des données.
Magasin officiel| RF Parameter | Value | Remark |
| Working frequency | 225~237.6 MHz | Default: 230MHz |
| Transmitting power | 24~33 dBm | Default: 33dBm（About 2W） |
| Receiving sensitivity | -126 dBm | Air data rate: 1.2kbps |
| Air data rate | 1.2k~70kbps | Default: 1.2kbps |
| Test distance | 8000m | In open and clear air, with maximum power, 5dBi antenna gain, height of 2m, air data rate: 1.2kbps |
| Hardware Parameter | Value | Remark |
Size | 37 * 60 mm | Without SMA |
Antenna type | SMA-K | |
Communication interface | UART | Baud rate: 1200~115200, default: 9600 |
Package | DIP | |
Buffer | 512 bytes buffer | Automatically sub-packaging with 43 bytes per package |
| Electronic parameter | Min. | Typ. | Max. | Unit | Condition |
| Power supply | 3.3 | 5.0 | 5.2 | V | |
| Communication level | 2.5 | 3.3 | 3.6 | V | |
| Transmitting current | 948 | 1030 | 1140 | mA | 33dBm（2W） |
| Receiving current | 14 | 15 | 17 | mA | |
| Sleep current | 4 | 5 | 6 | μA | |
| Operating temperature | -40 | 20 | +85 | ℃ | |
| Operating humidity | 10 | 60 | 90 | % | |
| Storage temperature | -40 | 20 | +125 | ℃ |