The Cross-Band Repeater System uses the Motorola VRS 750 transmitter/receiver and is installed in Battalions 1, 2, 4, 6, 7, 8, 9, 10, 11, 12, 31, 32, and 45. The system, primarily intended for high-rise building communications, is less often used since the introduction of the post radio with it's 45 watt output.