The radio only does "AM" in that band, which was the only option during the time the radio was built/designed
See Page 3 and 66
See Page 45 - does not include the UHF Mill Air Band
APCO Project 25 Phase 1 Systems — Digital systems that support the APCO Project 25 protocol developed by the Association of Public Safety Communications Officials (APCO), the Telecommunications Industry Association (TIA) and Electronic Industries Alliance (EIA). Systems can operate in conventional, trunked (9600), trunked (3600) and mixed-modes (analog and digital) in any frequency band including UHF, VHF, 800 MHz, and 900 MHz. See “Programming Motorola Systems.