How the reception ended.
OptionalpayloadThe frame's payload, or null without a frame.
OptionalrssiThe received signal strength averaged over the frame, in dBm.
OptionalsignalThe estimated strength of the LoRa signal itself, in dBm.
OptionalsnrThe estimated signal-to-noise ratio, in dB.
How a reception ended, with the frame and its signal levels when one arrived.