US Airways (DCA) Update

I was able to determine more specific usages for US Airways' DMR frequencies at Reagan National Airport on Friday. Here's the latest line-up:

• 451.6000 [         ] Express Gates (DMR - Color Code 1, Slot 1, Group 1006)
• 452.3250 [         ] Buses (DMR - Color Code 1, Slot 1, Group 1005)
• 460.7000 [         ] Mainline Ramp (DMR - Color Code 1, Slot 1, Group 1003)
• 460.7750 [         ] Express Ramp (DMR - Color Code 1, Slot 2, Group 1007)
• 460.8000 [         ] Mainline Gates (DMR - Color Code 1, Slot 1, Group 1002)
• 460.8750 [         ] Shuttle (DMR - Color Code 1, Slot 1, Group 1004)