Very useful new feature.
I learned a lesson: I'll be using the nrf24 without booster from now on. Much better range and commmunication.
output from nrf24 with radio set to LOW:
-256 :transportGetReceivingRSSI()
-29 :transportGetSendingRSSI()
-256 :transportGetReceivingSNR()
-256 :transportGetSendingSNR()
-12 :transportGetTxPowerLevel()
25 :transportGetTxPowerPercent()
0 :transportInternalToRSSI(_transportSM.uplinkQualityRSSI)