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low data throughput

Posted: Wed Jul 06, 2011 1:25 pm
by technalogic
Hello i have 3km PTP link with 2 SXT in i am gateing 3mb data throughput bit in night i am gating 13mb
i cant understand the problem please help me
here in my wireless configurations
Flags: X - disabled, R - running
0 R name="wlan1" mtu=1500 mac-address=xxxxxxxxx arp=enabled
interface-type=Atheros 11N mode=station-wds ssid="B-PTP" frequency=5745
band=5ghz-onlyn channel-width=20/40mhz-ht-above scan-list=default
wireless-protocol=nv2 wds-mode=disabled wds-default-bridge=none
wds-ignore-ssid=no bridge-mode=enabled default-authentication=yes
default-forwarding=yes default-ap-tx-limit=0 default-client-tx-limit=0
hide-ssid=no security-profile=default compression=no

Re: low data throughput

Posted: Wed Jul 06, 2011 7:53 pm
by Egate
Your signal is not very good on 3 km. For a point to point on 3km should be around -65 or less, depending on our aerial. Most probably interference. Signal strength is usually better at night, dew to less noise, like the sun. We have a link though, where at night spot lights is switch on that is near the dish and this just kill the throughput, though nothing is noticed on the signal strength. Still contemplating how to fix this.

Re: low data throughput

Posted: Thu Jul 07, 2011 2:43 pm
by normis
Make sure the SXT devices are correctly mounted (mind the polarization), also make sure to enable both chains in the "HT" tab of the wireless settings. See this document for mounting tips: http://routerboard.com/pricelist/downlo ... ile_id=280

Re: low data throughput

Posted: Fri Jul 08, 2011 2:16 pm
by technalogic
Dear Normis my SXT devices are correctly mounted as mikrotik guide but i have no idia about the HT chains kindly help me
for chain settings..

Re: low data throughput

Posted: Fri Jul 08, 2011 2:20 pm
by normis
try to change the frequency, and also try to align again. is the visibility clear? anything blocking the view?

Re: low data throughput

Posted: Fri Jul 08, 2011 7:26 pm
by technalogic
LOS is not clear how to align my sites as well sorry for the inconvenience normis