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@ -179,7 +179,7 @@ Payloads for commands are sent and expected as big endian and defined as:
# Using External UHF Amplifier
![alt text](images/amp.png)
It is possible to get 30-40% TX only coverage increase in urban environment by using additional external 1-2W amplifier (about 6$ on Aliexpress), which will give 10-12 dB signal increase
It is possible to get 30-40% TX only coverage increase in urban environment by using additional external 1-2W amplifier (about 6$ on Aliexpress), which will give 10-12 dB signal increase, achieved approximately 20 km coverage in moderate urban environment and about 15 km with almost 100% packet receiving.
- Implement simple amplifier power switching by using relay, do NOT keep this amplifier always ON
- Set LoRa output power to around 8 dBm `cfg.LoraPwr = 8;`, NB! higher than 10 dBm levels can destroy amplifier