RegionBaseUS.c:48:24:FindAvailable125kHzChannels	5
RegionBaseUS.c:74:17:RegionBaseUSComputeNext125kHzJoinChannel	11
RegionBaseUS.c:135:6:RegionBaseUSVerifyFrequencyGroup	4
RegionBaseUS.c:146:10:RegionBaseUSCalcDownlinkFrequency	1