XChannel
- Bit Number
- 18
- Structure
- u32 flags, u16 freq, u8 channel, u8 maxpower
- Required Alignment
- 4
- Unit(s)
- none, MHz, 802.11 channel number, unknown
Extended channel information. The flags part of the field contains various flags:
flag |
definition |
0x00000010 |
Channel Type Turbo |
0x00000020 |
Channel Type Complementary Code Keying (CCK) Modulation |
0x00000040 |
Channel Type Orthogonal Frequency-Division Multiplexing (OFDM) |
0x00000080 |
Channel Type 2 GHz spectrum |
0x00000100 |
Channel Type 5 GHz spectrum |
0x00000200 |
Channel Type Passive |
0x00000400 |
Channel Type Dynamic CCK-OFDM Channel |
0x00000800 |
Channel Type Gaussian Frequency Shift Keying (GFSK) Modulation |
0x00001000 |
Channel Type GSM |
0x00002000 |
Channel Type Status Turbo |
0x00004000 |
Channel Type Half Rate |
0x00008000 |
Channel Type Quarter Rate |
0x00010000 |
Channel Type HT/20 |
0x00020000 |
Channel Type HT/40+ |
0x00040000 |
Channel Type HT/40- |
Discussion
This field is parsed by wireshark, but only partially (it ignores maxpower). Origin of the field is unknown.