I have a few routers that i have been using in a adhoc mesh network that
have been presenting some results that i would like to understand better.
Some of these routers had only one antenna; others had 2. they all got
modified ro be able to use external omni directional antennas.
The routers with just 2 antennas kept one original antenna and the other
was upgraded to the external.
Right now are showing some values that have made me questioning which
antenna is actually being used.
iw dev wlan0-1 station dump
Station (on wlan0-1)
inactive time: 140 ms
rx bytes: 5916030
rx packets: 84079
tx bytes: 6406980
tx packets: 51827
tx retries: 59838
tx failed: 2130
signal: -77 [-80, -79] dBm
signal avg: -76 [-79, -78] dBm
tx bitrate: 19.5 MBit/s MCS 2
rx bitrate: 1.0 MBit/s
authorized: yes
authenticated: yes
preamble: long
WMM/WME: yes
MFP: no
TDLS peer: no
In all these models of the 2 antenna routers i get the TX value always
higher than the RX and the RX at 1 mbit.
/etc/config/wireless
config wifi-device radio0
option type mac80211
option channel 11
option phy phy0
option hwmode 11ng
option country US
option noscan 1
option diversity 0
option htmode HT40-
list ht_capab SHORT-GI-40
list ht_capab TX-STBC
list ht_capab RX-STBC1
list ht_capab DSSS_CCK-40
option beacon_int 1000
option txpower 20
option disabled 0
option distance 2000
Since i have option diversity 0 and no specification for which antenna
the router should use and in this case it should use the right side
antenna; could this be the cause of very low values for rx bitrate.
How can i improve or solve this situation ?
Also in the case of 3 antenna routers such as the t-plink wr1043nd which
has 3 antennas; how does one selects the middle antenna ?
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