E21-400G37S is a pure hardware RF medium power amplifier (PA) launched by Chengdu Yibaite Company, the maximum output power is 37dBm, covering the frequency range of 410~493MHz, the module has built-in LNA low-noise amplifier, which greatly improves the communication distance between wireless. This powerful RF medium power amplifier provides an impressive 37dBm of output power for an extended communication range of 410-493MHz, complete with a built-in low-noise amplifier that amplifies signal strength.
Working frequency band: 410~493MHz
Transmit power: 37dBm
Communication distance: 20km
Receive gain: 15dBm
Product size: 45*30mm
| The main parameters | Min | Typ | Maxi | Unit | Remark |
| Working voltage | 3.3 | 5.0 | 5.25 | V | ≥4.75V can guarantee output power |
| Control level | 3.0 | 3.3 | 5.25 | V |
Recommend to use 3.3V |
| Working temperature | -40 | 25 | 85 | ℃ |
Industrial grade design |
| Working frequency | 400 | - | 470 | MHz |
ISM band |
| Emission current | 450 | 480 | 500 | mA |
Instantaneous power consumption 30dBm |
| Receiving current | 6.5 | 8 | - | mA |
-100dBm input current 8mA |
| Sleep current | - | 3.0 | - | μA |
T/RX_EN = 0 |
| Maximum transmit power | 29.5 | 30 | 30.5 | dBm |
Input power = 20dBm |
| Receiving gain | 14 | 15 | 17 | dBm |
-100dBm input |
| Transmission gain | - | 12 | - | dBm |
+20dBm |
| Main parameters | Describe | Remark |
| reference distance | 5000m |
Clear and open environment, antenna gain 5dBi, antenna |
| Packaging method | SMD |
- |
| Interface method | 2.0mm |
stamp hole |
| Dimensions | 27.5*18mm |
- |
| RF input and output interface | Stamp hole |
Equivalent impedance is about 50Ω |
