[Madwifi-users] More distance problems with 5212 chip

[Mikhail S. <M.S...@sn...>]

Dead All,
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First many thanks to Atheros and Linux driver developers for this nice =
product.
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I have same problem with distances ( 7 km) as shown on the link =
http://sourceforge.net/mailarchive/forum.php?thread_id=3D5857523&forum_id=
=3D33958).=20
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The scp traffic for smaller files is OK for larger no chance. I need to =
transfer OSPF traffic but zebra says that the packet is broken (CRC =
error). I didn't see excessive retries but some kind of thraffic doesn't =
pass. I've try to overcom this with GRE tunnel but without success.
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My test config is:
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/sbin/iwconfig ath0 essid XXXXX mode Master channel 40 nick AP rts 2312 =
frag 2312 txpower 50mW
/usr/local/bin/athctrl -i ath0 -d 8000
/sbin/ifconfig ath0 10.11.250.10 netmask 255.255.255.0 broadcast =
10.11.250.255

ath0      IEEE 802.11a  ESSID:"XXXXX"  Nickname:"AP"
          Mode:Master  Frequency:5.2GHz  Access Point: 00:0E:6A:7A:97:71
          Bit Rate:0kb/s   Tx-Power=3D17 dBm   Sensitivity=3D0/3
          Retry:off   RTS thr:off   Fragment thr=3D2312 B
          Encryption key:off
          Power Management:off
          Link Quality:32/94  Signal level:-63 dBm  Noise level:-95 dBm
          Rx invalid nwid:28  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:1  Invalid misc:156   Missed beacon:0

As you can see there is no problem with the quality and signal strength. =
I have no idea what we can do with this.
What we miss in config ( wre change tehe distance with and without =
tool). I've tried with Aironet 350 same distance and environment without =
problems.=20
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Thanks in advance,
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Mikhail Saykov