The contents of this page addresses two topics:
- How to set 802.11 interfaces used on ORBIT
- Which settings actually work
Available settings: mode (abg), essid, channel, mode (sta, ap, ), txpower, phy rate
Atheros
Madwifi-old
Madwifi-ng
ath5k
Intel
ipw2200
Mode
iwpriv eth2 set_mode <x>
where x stands for:
1: a
2: b
3: ab
4: g
5: ag
6: bg
7: abg
Note: Must be set after interface mode is set to take effect!!!
Interface mode
iwconfig eth2 mode <mode>
where <mode> can be ad-hoc, managed, or monitor. Access point mode (master) is not allowed.
Channel
iwconfig eth2 channel <channel>
where the channel is given in channel nomenclature number (36) or in MHz (5180M).
Transmit power
iwconfig eth2 txpower <power in dBm>
Alowed range is -12dBm to 20dBm. Actual settings are from -8dBm to 14dBm. Thus
iwconfig eth2 txpower 18
results in power being set to 14dBm.
PHY rate
iwconfig eth2 rate <x>M
where the actual range of rates depends on selected 802.11 mode. In other words
iwconfig eth2 rate 54M
will not work if selected mode is 2.
Note
Vector Signal Analyzer shows interesting discrepancy. In only b mode (2) 6Mbps OFDM is used instead of 5.5Mbps DSSS, and in only g mode 11Mbps DSSS is used instead of 12Mbps OFDM.
