Florian,
Florian Fainelli wrote:
Hi Larry,
I posted recently that I had false reported signal values from 0 to -250 dBm
which are impossible for a Wi-Fi card, so I guess there must be something
wrong with the qdbm -> mw and mw -> qdbm calculations somewhere, probably
affecting the showed result (I guess with iwconfig ?).
So I don't think your radio is currently restricted to 10 mW but it's probably
emitting with 15 mW (it's physical maximum), but it reports 10 mW.
I may be wrong anyway.
The signal values reported by iwconfig are bogus. I have been working on changing the statistics
that are reported and now get the following from my updated code:
wlan0 IEEE 802.11b/g ESSID:"lwfdjf" Nickname:"Broadcom 4306"
Mode:Managed Frequency=2.417 GHz Access Point: 00:14:BF:85:49:FA
Bit Rate=11 Mb/s Tx-Power=10 dBm
RTS thr:off Fragment thr:off
Encryption key:xxxxxxxxxx Security mode:open
Link Quality=96/100 Signal level=-29 dBm Noise level=-66 dBm
Rx invalid nwid:0 Rx invalid crypt:481 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
The signal level comes from the rssi value reported by the driver and matches the signal strength
reported by the Windows driver. I think the noise level should be lower, but that is the number that
comes from the formula extracted by the clean-room group.
I will be submitting a patch for the statistics after a bit more testing.
Larry
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