Low Wireless Signal of AP

[Yong Chu Eu (Ñî×ÓÓÓ)]

Hi,

why my Ap signal is quite low make my wireless communication between AP
and Notebook a problem.
I used the below command to make my AP power up.My HOSTAP driver version
is 0.2.0 with Hostap Patch.

iwpriv wlan0 alc 0 
iwpriv wlan0 writemif 62 128

below are iwconfig output of my three AP that i setup.

[root at localhost root]# iwconfig
lo        no wireless extensions.

sit0      no wireless extensions.

eth0      no wireless extensions.

wifi0     IEEE 802.11b  ESSID:"mipv6b"  Nickname:"localhost.localdomain"
          Mode:Master  Frequency:2.412 GHz  Access Point:
00:01:03:88:62:96
          Bit Rate=11 Mb/s   Sensitivity=1/3
          Retry min limit:8   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:off
          Link Quality:0  Signal level:0  Noise level:0
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:110  Invalid misc:2645   Missed beacon:0

wlan0     IEEE 802.11b  ESSID:"mipv6b"  Nickname:"localhost.localdomain"
          Mode:Master  Frequency:2.412 GHz  Access Point:
00:01:03:88:62:96
          Bit Rate=11 Mb/s   Sensitivity=1/3
          Retry min limit:8   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:off
          Link Quality:0  Signal level:0  Noise level:0
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:110  Invalid misc:2645   Missed beacon:0



[root at localhost root]# iwconfig
lo        no wireless extensions.

sit0      no wireless extensions.

eth0      no wireless extensions.

wifi0     IEEE 802.11b  ESSID:"homenetwork" 
Nickname:"localhost.localdomain"
          Mode:Master  Frequency:2.412 GHz  Access Point:
00:04:75:88:7F:9C
          Bit Rate=11 Mb/s   Tx-Power:150 dBm   Sensitivity=1/3
          Retry limit:8   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:off
          Link Quality:0  Signal level:0  Noise level:0
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:120  Invalid misc:1853   Missed beacon:0

wlan0     IEEE 802.11b  ESSID:"homenetwork" 
Nickname:"localhost.localdomain"
          Mode:Master  Frequency:2.412 GHz  Access Point:
00:04:75:88:7F:9C
          Bit Rate=11 Mb/s   Tx-Power:150 dBm   Sensitivity=1/3
          Retry limit:8   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:off
          Link Quality:0  Signal level:0  Noise level:0
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:120  Invalid misc:1853   Missed beacon:0


[root at localhost root]# iwconfig
lo        no wireless extensions.

sit0      no wireless extensions.

eth0      no wireless extensions.

wifi0     IEEE 802.11b  ESSID:"mipv6a"  Nickname:"localhost.localdomain"
          Mode:Master  Frequency:2.412 GHz  Access Point:
00:01:03:88:62:9F
          Bit Rate=11 Mb/s   Sensitivity=1/3
          Retry min limit:8   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:off
          Link Quality:0  Signal level:0  Noise level:0
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:49  Invalid misc:1679   Missed beacon:0

wlan0     IEEE 802.11b  ESSID:"mipv6a"  Nickname:"localhost.localdomain"
          Mode:Master  Frequency:2.412 GHz  Access Point:
00:01:03:88:62:9F
          Bit Rate=11 Mb/s   Sensitivity=1/3
          Retry min limit:8   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:off
          Link Quality:0  Signal level:0  Noise level:0
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:49  Invalid misc:1679   Missed beacon:0



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