Zwiększenie mocy karty WLAN - Intel Centrino Wireless-N 2230

[andy]

Witam, chciałbym zwiększyć nieco moc swojej zintegrowanej karty WLAN - Intel Centrino Wireless-N 2230

Obecnie karta pracuje na 39mW.

andy@nabuchodonozor:~$ iwlist wlan0 txpower
wlan0 unknown transmit-power information.

Current Tx-Power=16 dBm (39 mW)

andy@nabuchodonozor:~$ sudo iwconfig wlan0 txpower 17
Error for wireless request "Set Tx Power" (8B26) :
SET failed on device wlan0 ; Invalid argument.
andy@nabuchodonozor:~$ sudo iwconfig wlan0 txpower 50mW
Error for wireless request "Set Tx Power" (8B26) :
SET failed on device wlan0 ; Invalid argument.

Czy to oznacza, że robię coś źle, czy karta po prostu tego nie obsługuje?(Tego nigdzie nie znalazłem).

Sterownik karty to iwlwfi

andy@nabuchodonozor:~$ sudo lshw -c network
*-network
description: Ethernet interface
product: RTL8111/8168B PCI Express Gigabit Ethernet controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:07:00.0
logical name: eth0
version: 07
serial: d4:be:d9:24:fc:bb
size: 10Mbit/s
capacity: 1Gbit/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl8168e-3_0.0.4 03/27/12 latency=0 link=no multicast=yes port=MII speed=10Mbit/s
resources: irq:43 ioport:2000(size=256) memory:c1404000-c1404fff memory:c1400000-c1403fff
*-network
description: Wireless interface
product: Centrino Wireless-N 2230
vendor: Intel Corporation
physical id: 0
bus info: pci@0000:08:00.0
logical name: wlan0
version: c4
serial: 68:5d:43:e3:b6:2e
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=iwlwifi driverversion=3.2.0-31-generic firmware=18.168.6.1 ip=192.168.1.159 latency=0 link=yes multicast=yes wireless=IEEE 802.11bgn
resources: irq:45 memory:c1500000-c1501fff