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How to increase transmitted power in a Wireless Card

#1.Install the following packages

$sudo apt-get install libgcrypt11-dev python-m2crypto libnl1 libnl-dev

 #2.

$mkdir custom-rdb && cd custom-rdb 

 #3.

wget http://wireless.kernel.org/download/wireless-regdb/wireless-regdb-2010.11.24.tar.bz2

 #4.

$tar -xvjf wireless-regdb-2010.11.24.tar.bz2

#5.

$cd wireless-regdb-2010.11.24

#6.

$gedit db.txt 

Select a country. Say TW, then for TW make the following changes

 

country TW:

(2402 - 2494 @ 40), (N/A, 33)

(4910 - 5835 @ 40), (N/A, 33)

 

#7.

make

 

#8.

cp /usr/lib/crda/regulatory.bin /usr/lib/crda/regulatory.bin.bak

#   for mint 15 its ...    /lib/crda/regulatory.bin

 

#9.

cp regulatory.bin /usr/lib/crda/

 

#10.

cd ~/custom-rdb

 

#11.

wget http://wireless.kernel.org/download/crda/crda-1.1.1.tar.bz2

 

#12.

tar -xvjf crda-1.1.1.tar.bz2

 

#13.

cd crda-1.1.1

 

#14.

cp ~/custom-rdb/wireless-regdb-2010.11.24/*.key.pub.pem pubkeys

 

#15.

make

make install

 

#16.

iw reg set TW

ifconfig wlan2 down

iwconfig wlan2 txpower 33

ifconfig wlan2 up

 

#Note 33 db is 2W

 

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