... modulation MPEG-2 video compression Buckle Plate COFDM Wireless Outdoor Security System/video Transmitter and Receiver Description: ST-6000TKMD Multiplexing COFDM ... fields such as: Police Forces, First Responders, Security Services, Fire Services, Port Security, Homeland Security, Traffic Management, Police Technical Support Units, ... ,2/3,3/4,5/6,7/8 (optional)Guard Interval1/32,1/16,1/8,1/4 (optional) ...