Compatibility with NXDN™ protocol and abundant digital functions 512 memory channels with 128 zones Large dot matrix display and multi-function LCD Detachable front panel with optional RMK-3 and separation cable D-Sub accessory connector and ignition sensing line 50W (VHF), 45W (UHF) RF output power IP54 dust-protection and splash resistance (Controller only) MIL-STD rugged construction Voting mode scanning Front mounted loud speaker and audio compander Built-in 2-Tone / 5-Tone / CTCSS / DTCS signaling (For analog FM mode) Built-in basic LTR™ mode operation (For analog FM mode) MDC 1200 compatible (For analog FM mode) Built-in inversion type voice scrambler and optional UT-109R/ UT-110R for higher security (For analog FM mode) 8 DTMF autodialing memories and ANI function (For analog FM mode) Escalating alarm