Icom's Universal Repeater, FR4000 UHF 50W 450-480MHz 

Automatic battery backup system, a built-in backup system supports automatic switching to an external power supply (13.6V DC) if the AC power supply fails.

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• Master/Slave backup operation by connecting two repeaters
• Self check function checks for internal errors and alerts with a beep sound or with a phone call
• Accessory connector (D-sub 25-pin) on the rear panel for trunking controller including LTR, PassPort, SmarTrunk?? and MPT1327
• Compatible with VEGA tone remote control system
• 5-Tone relay function
• Optional Voice Scrambler UT-109 or UT-110
• CW ID transmitter (DTMF or 5-Tone also selectable)
• Password and kill/stun function for security
• 16-digit alphanumeric display convenient for base station operation
• A programmable button gives access to a customized function