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Tag

wireless adapter

Settings Wireless Region Linux – Channel 13 Backtrack 4

By | Linux, Sample Work | No Comments

One of the most recent problems I stumbled upon while running Backtrack, or any other linux distro for that matter is setting the region on a wireless card.  The typical procedure is :

iwconfig wlan0 channel 13

And commonly you will get

error for wireless regquest ''set frequency''
(8b04)
set failed on device wlan0 ; invalid arugment

There is an easy fix for this that will allow you to change the region mode your wireless adapter is in.

iw reg set FR
iw reg set US

More on IW here.

References:

Channel

Center Frequency

Frequency Spread

1

2412 MHz

2399.5 MHz – 2424.5 MHz

2

2417 MHz

2404.5 MHz – 2429.5 MHz

3

2422 MHz

2409.5 MHz – 2434.5 MHz

4

2427 MHz

2414.5 MHz – 2439.5 MHz

5

2432 MHz

2419.5 MHz – 2444.5 MHz

6

2437 MHz

2424.5 MHz – 2449.5 MHz

7

2442 MHz

2429.5 MHz – 2454.5 MHz

8

2447 MHz

2434.5 MHz – 2459.5 MHz

9

2452 MHz

2439.5 MHz – 2464.5 MHz

10

2457 MHz

2444.5 MHz – 2469.5 MHz

11

2462 MHz

2449.5 MHz – 2474.5 MHz

12

2467 MHz

2454.5 MHz – 2479.5 MHz

13

2472 MHz

2459.5 MHz – 2484.5 MHz

Acer Aspire 3690 Broadcom Wireless 43xx Ubuntu 9.10 Karmic

By | Interest, Sample Work | No Comments

Issue : After installing Ubuntu 9.10 wireless and wired networking are either working sporadicly or not at all.  The most vanilla solution you will find.

Target : Acer Aspire 3690-2159

OS : ubuntu-9.10-desktop-i386

Hardware : Broadcom 4318 Wireless Adapter

Ensure your wireless switch is turned on in the front before reading step 1.

1.  Install Ubuntu 9.10

2.  Plug in active internet connection the Wired ethernet

3.  Run update-manager

4.  Restart after Kernel update

5.  Now with internet still plugged in, goto System>Administration>Hardware Drivers

6.  Select the Broadcom B43 wireless drive and click activate.

7.  Type in your administrator password

8.  Restart

et Voila.