v1.12

Critical relay-safety fix for split operation. Confirmed on-air that byte 184 is the active/displayed VFO and byte 196 the secondary, and in split the radio transmits on the secondary VFO. The relay logic had always sequenced the active VFO, so a split transmit (active 23cm / secondary 2m) wrongly fired the 23cm relays. The operating band/frequency is now split ? secondary-VFO : active-VFO, used by the relay sequencer, the TX: log, and ic905/tx. Verified: split + secondary 2m now fires the 2m relay (relay 6), not the 23cm relays. ic905/tx now reads e.g. ON 2m 144.375.004 25% — the actual transmit band, RF and power.