its definatley possible to do 12-14km links with the internal antennas as
ive done so with them using OpenWRT and no external antennas connected
but i do agree setting external or internal is a bit confusing, i read here
that setting both to 0 uses the external antenna, though nobody specifies
setting what to 0
goipctl set 7 makes gpio 7, gpioctl clear 7 sets it low
i think with the code changes being pushed someone should actually help
people decipher what the proper setting for internal or external antennas
are as ive got a few radios with external high gain antennas, and i still
struggle to validate with signal which antennas is actually the active one,
or if the external antennas are actually being utilized, or not. the signal
strength seems to not be any different which i find quite odd. so i ask is
there a definitive doc for NS2 configuration internal / external
ive read so much out there its hard to differentiate whats correct and whats
not.
right now i belive internal should be
config wifi-device wifi0
option type atheros
option channel 11
option mode 11g
# option distance 200
option antenna auto # (auto|horizontal|vertical|external)
# option disabled 0
config led
option name wlan
option sysfs wlan
option default 1
as external should be
config wifi-device wifi0
option type atheros
option channel 11
option mode 11g
# option distance 200
option antenna external # (auto|horizontal|vertical|external)
# option disabled 0
and
config led
option name wlan
option sysfs wlan
option default 0
now is this correct or am i missing something
2008/10/15 Xavier Martinez <[EMAIL PROTECTED]>
> Travis Kemen wrote:
>
> > If you are using the internal antenna's on a ns2 they currently work
> > via the madwifi rx(tx)antenna settings but to use the external antenna
> > you need to install gpioctl and set softled to 0 for wifi0 in sysctl,
> > then use gpioctl to set pin 7 low.
> I've tried this procedure to my NS2 with (openwrt trunk r12842 with
> gpioctl) in a 2 km link in adhoc mode without any external annena neither
> a pigtail connected to the SMA connector.
>
> My /etc/config/wireless looks like this:
>
> config 'wifi-device' 'wifi0'
> option 'type' 'atheros'
> option 'disabled' '0'
> option 'channel' '6'
> option 'mode' '11b'
> option 'txantenna' '2'
> option 'rxantenna' '2'
> option 'distance' '5000'
> option 'softled' '0'
> config 'wifi-iface'
> option 'device' 'wifi0'
> option 'encryption' 'none'
> option 'ssid' 'guifibages'
> option 'mode' 'adhoc'
> option 'bssid' '12:34:56:78:9A:BC'
> option 'network' 'wlan'
> option 'txpower' '16'
>
> Doing "gpioctl set 7" results in a Pin 7 HIGH and the pings to the other
> machine are answered. In this case internal antenna is working. But when I
> do a "gpioctl clear 7" resulting in a Pin 7 LOW, the pings are also
> answered. In think that its impossible to establish a 2 km link without an
> external antenna connected, so I think that internal antenna is also
> working. What do you think?
>
> I haven't had time to try connecting an external antenna focusing the other
> machine and the nanostation focusing the other side. This could clarify if
> both antennas are working with Pin 7 LOW or only the internal antenna does.
>
> What do you think?
>
> _______________________________________________
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> openwrt-devel@lists.openwrt.org
> http://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-devel
>
>
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