my MTH/Lionel train layout uses three rev. L TIU's with version 6.1 software and I would like the possibility of running the MTH locomotives with the MTH app and a tablet. My three TIU's are all set to super mode with very good signal quality as long as my Lionel Cab-1light base is not powered. Do I need more than one WIU ? as in one per TIU or just one WIU for the complete layout ?
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