Radio output powers measurement script

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Radio output powers

For testings i have used script to read max radio txpower value. Simple upload this script to device writable directory (By example /tmp), change file mode to executable and run.

Script code: 

#!/bin/sh
# auto mode, according channel/country code
#
ifc=ath0
iwpriv $ifc mode 0
list="1 2 3 4 5 6 7 8 9 10 11 12 13 36 40 44 48 52 56 60 64 100 104
      108 112 116 120 124 128 132 136 140 152 153 157 160 161 165"
#
# do not print anything  but results to console.
#
dmesg -n 1
for var in $list; do
    ifconfig $ifc down
    iwconfig $ifc channel $var > /dev/null 2>&1
 
    if [ $? -ne 0 ]; then
  	echo "channel $var not present for current country."
      	continue;
    fi
 
    ifconfig $ifc up > /dev/null 2>&1
 
    CHANN=$(iwlist $ifc chan | grep Current | sed -e 's/[ ]*Current Frequency://')
    POWER=$(iwlist $ifc txpower | grep Current | sed -e 's/Current Tx-Power=//')
    echo $POWER $CHANN
done
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