Ebyte Ultra-High Cost-Effective Wireless Module 2000m Long Range Rf Transceiver Based On AMICCOM A7139 Chip
[IC]：A7139
[Frequency]：425~470MHz
[Power]：20dBm
[Distance]：2km
[Size]：20*14mm
[Feature]：Super cost-effective, low power consumption
[Product weight]：2.3±0.5g
[Introduction]：E41-400M20S is an ultra-high cost-effective wireless data transmission module launched by Ebyte. It is based onAMICCOM's A7139 radio frequency chip, and it has the characteristics of small size and low power consumption.
Limit Parameters
| Main Parameters | Value | Remarks | |
| Min. | Max | ||
| Power supply（V） | 2.5 | 3.6 | Over 3.6V, the module will be burned |
| Operating temperature（℃） | -40 | +85 | Industrial grade |
Operating parameter
| Main Parameters | Value | Remarks | ||
| Min. | Typical | Max | ||
| Working Voltage (V) | 2.5 | 3.3 | 3.6 | Over 3.6V, the module will be burned |
| Communication level（V） | - | 3.3 | - | - |
| Working temperature (℃) | -40 | - | 85 | Industrial design |
| Working frequency（MHz） | 425 | 433 | 470 | - |
| TX Current(mA) | - | 150 | - | Instantaneous value @ 20dBm |
| RX current（mA） | - | 3.8 | - | - |
| Sleep current（μA） | - | 2.0 | - | Sleep status |
| Max Tx power（dBm） | - | 20 | - | - |
| Receiving sensitivity（dBm） | -113 | -114 | -115 | Air rate @ 2 kbps |
| Main parameter | Description | Remarks |
|---|---|---|
| Reference distance | 2 km | Clear and open environment, antenna gain 5dBi, antenna height2.5m, air rate 2kbps |
| Crystal frequency | 12.8 MHz | - |
| Package | SMD | - |
| Chip model | A7139/QFN24 | - |
| Communication Interface | SPI | - |
| Dimensions | 20*14 mm | - |
| RF interface | IPEX/Stamp hole | Impedance is 50 Ω |
| Weight | 1.3±0.1g | - |