Heltec’s external filters are easy to use and can be integrated directly into hotspot devices. Our filter can reduce noise, increase signal-to-noise ratio, and increase the reception range of EU868 machines running V1.0/V1.1, resulting in the filter receiving the node’s signal continuously and reliably.
Main Features
- Center frequency: 866.5MHz
- Frequency range: 863~870MHz
- Insertion loss: 2.3dB
Packing list
The default packing list without selecting any accessories is as follows:
| Item | Quantity |
|---|---|
| External Filter (863~870MHz) | x1 |