The 900Mhz ISM band, specifically: (dump from rtlamr output)

07:12:02.921590 decode.go:45: CenterFreq: 912380000

07:12:02.921659 decode.go:46: SampleRate: 2359296

07:12:02.921663 decode.go:47: DataRate: 32768

07:12:02.921666 decode.go:48: ChipLength: 72

07:12:02.921669 decode.go:49: PreambleSymbols: 32

07:12:02.921672 decode.go:50: PreambleLength: 4608

07:12:02.921674 decode.go:51: PacketSymbols: 736

07:12:02.921677 decode.go:52: PacketLength: 105984

07:12:02.921681 decode.go:59: Protocols: scm,scm+,idm,r900