I'm not sure you can change output power with voltage. Some versions of the datasheet says you can change power from 1dBm to 30dBm with register settings, just like the RFM22, however, the datasheet on hoperf website has incomplete info...
I'm not sure you can change output power with voltage. Some versions of the datasheet says you can change power from 1dBm to 30dBm with register settings, just like the RFM22, however, the datasheet on hoperf website has incomplete info...