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v1.18
Preamp and attenuator in MQTT. New topics ic905/preamp and ic905/atten (on/off), decoded from byte 284 and byte 285 of the 288-byte 0x1801 status frame (per K7MDL, confirmed on-air — 0x01 = ON, 0x00 = OFF). Both also appear in ic905/state and as Preamp:/Atten: lines in the journal on change.
Credit: K7MDL (IC905_Ethernet_Decoder) for the byte offsets.