Problem With Nstreme Dual

sub_zero · November 5, 2007, 10:11am

Hello,
We have this kind of problem…
Connection Nstreme Dual, 2x PIV 3.2GHz, ver. MT 2.9.34 a 2.9.40, CM9 in individual reductions, 27dBi
spaced parabolic antennas - 3km, Fresnel zone ideal, frequence distance of Tx/Rx channel 300MHz.
Signal -60/-61dBi, cabels checked as well as pigtails and connectors.

There is lovely 34Mbit on RX with 6ms latency (in real tests), but TX has upload from 5 to 22Mbit with 20-150ms latency.
I was looking for a solution through the whole web, I found some similar problems, but nobody solved it …
Please, do you have any suggestion?

Best regards

uldis · November 5, 2007, 11:50am

what is your nstreme dual configuration: framer-policy, size.

sub_zero · November 5, 2007, 2:00pm

yes…framer polici is framer size and the limit is 4000..

jober · November 5, 2007, 3:13pm

I don’t use 2.4Ghz in the big easy for APs, so I used one of the 2.4 channels for one of the links on the dual nstreme ptp and it stop any interference in the nstreme box. The 5.8 and 2.4 panel antennas are stacked on top of each other. The link works great!
Maybe you could try it.

sub_zero · November 5, 2007, 3:25pm

impossible. Here is very big activity on 2.4Ghz band. We must operation only 5Ghz band. I read somewhere, that this problem makes some version of MT, that this problem will be fix, on version 3.0..

jober · November 5, 2007, 4:24pm

How will an OS software change fix a RF interference problem?

sub_zero · November 5, 2007, 5:48pm

and my problem is just RF interference? can here anybody posted any functionaly config Nstreme Dual on 5Ghz?

my config is here:

One Site

name="wlan1" mtu=1500 mac-address=00:0B:6B:56:FB:33 arp=enabled 
      disable-running-check=no interface-type=Atheros AR5213 
      radio-name="p2p_zero" mode=nstreme-dual-slave ssid="nstreme1" area="" 
      frequency-mode=manual-txpower country=czech republic antenna-gain=20 
      frequency=5540 band=5ghz scan-list=default rate-set=default 
      supported-rates-b="" supported-rates-a/g=54Mbps basic-rates-b="" 
      basic-rates-a/g=54Mbps max-station-count=2007 ack-timeout=dynamic 
      tx-power-mode=default noise-floor-threshold=default 
      periodic-calibration=default periodic-calibration-interval=60 
      burst-time=disabled dfs-mode=none antenna-mode=ant-a wds-mode=disabled 
      wds-default-bridge=none wds-default-cost=100 wds-cost-range=50-150 
      wds-ignore-ssid=no update-stats-interval=disabled 
      default-authentication=no default-forwarding=no default-ap-tx-limit=0 
      default-client-tx-limit=0 proprietary-extensions=pre-2.9.25 
      hide-ssid=no security-profile=default disconnect-timeout=3s 
      on-fail-retry-time=100ms preamble-mode=long compression=no 
      allow-sharedkey=no

 name="wlan2" mtu=1500 mac-address=00:0B:6B:56:FB:C4 arp=enabled 
      disable-running-check=no interface-type=Atheros AR5213 
      radio-name="000B6B56FBC4" mode=nstreme-dual-slave ssid="nstreme2" 
      area="" frequency-mode=manual-txpower country=czech republic 
      antenna-gain=10 frequency=5580 band=5ghz scan-list=default 
      rate-set=default supported-rates-b="" supported-rates-a/g=6Mbps 
      basic-rates-b="" basic-rates-a/g=6Mbps max-station-count=20 
      ack-timeout=dynamic tx-power-mode=default noise-floor-threshold=default 
      periodic-calibration=default periodic-calibration-interval=60 
      burst-time=disabled dfs-mode=none antenna-mode=ant-a wds-mode=disabled 
      wds-default-bridge=none wds-default-cost=100 wds-cost-range=50-150 
      wds-ignore-ssid=no update-stats-interval=disabled 
      default-authentication=no default-forwarding=no default-ap-tx-limit=0 
      default-client-tx-limit=0 proprietary-extensions=pre-2.9.25 
      hide-ssid=no security-profile=default disconnect-timeout=3s 
      on-fail-retry-time=100ms preamble-mode=long compression=no 
      allow-sharedkey=no

 R name="nstreme1" mtu=1500 mac-address=00:0B:6B:56:FB:C4 arp=enabled disable-running-check=no tx-radio=wlan1 rx-radio=wlan2 remote-mac=00:0B:6B:81:EC:E9 
      tx-band=5ghz tx-frequency=5540 rx-band=5ghz rx-frequency=5680 rates-b="" rates-a/g=36Mbps framer-policy=exact-size framer-limit=4000

Other site

 name="wlan3" mtu=1500 mac-address=00:0B:6B:81:EC:E9 arp=enabled disable-running-check=no interface-type=Atheros AR5213 radio-name="000B6B81ECE9" 
      mode=nstreme-dual-slave ssid="MikroTik" area="" frequency-mode=manual-txpower country=albania antenna-gain=0 frequency=5180 band=5ghz scan-list=default 
      rate-set=default supported-rates-b=1Mbps,2Mbps,5.5Mbps,11Mbps supported-rates-a/g=6Mbps,9Mbps,12Mbps,18Mbps,24Mbps,36Mbps,48Mbps,54Mbps 
      basic-rates-b=1Mbps basic-rates-a/g=6Mbps max-station-count=2007 ack-timeout=dynamic tx-power-mode=default noise-floor-threshold=default 
      periodic-calibration=default periodic-calibration-interval=60 burst-time=disabled dfs-mode=none antenna-mode=ant-a wds-mode=disabled 
      wds-default-bridge=none wds-default-cost=100 wds-cost-range=50-150 wds-ignore-ssid=no update-stats-interval=disabled default-authentication=yes 
      default-forwarding=yes default-ap-tx-limit=0 default-client-tx-limit=0 proprietary-extensions=post-2.9.25 hide-ssid=no security-profile=default 
      disconnect-timeout=3s on-fail-retry-time=100ms preamble-mode=long compression=no allow-sharedkey=no

name="wlan5" mtu=1500 mac-address=00:0B:6B:37:6A:29 arp=enabled disable-running-check=no interface-type=Atheros AR5213 radio-name="000B6B376A29" 
      mode=nstreme-dual-slave ssid="Mikrotik" area="" frequency-mode=manual-txpower country=czech republic antenna-gain=0 frequency=5180 band=5ghz 
      scan-list=default rate-set=default supported-rates-b=1Mbps,2Mbps,5.5Mbps,11Mbps supported-rates-a/g=48Mbps,54Mbps basic-rates-b="" 
      basic-rates-a/g=48Mbps,54Mbps max-station-count=2007 ack-timeout=dynamic tx-power-mode=defaut tx-power-mode=all-rates-fixed noise-floor-threshold=default 
      periodic-calibration=default periodic-calibration-interval=60 burst-time=disabled dfs-mode=none antenna-mode=ant-a wds-mode=disabled 
      wds-default-bridge=none wds-default-cost=100 wds-cost-range=50-150 wds-ignore-ssid=no update-stats-interval=disabled default-authentication=yes 
      default-forwarding=yes default-ap-tx-limit=0 default-client-tx-limit=0 proprietary-extensions=post-2.9.25 hide-ssid=no security-profile=default 
      disconnect-timeout=3s on-fail-retry-time=100ms preamble-mode=both compression=no allow-sharedkey=no

 R name="nstreme1" mtu=1500 mac-address=00:0B:6B:81:EC:E9 arp=enabled disable-running-check=no tx-radio=wlan5 rx-radio=wlan3 remote-mac=00:0B:6B:56:FB:C4 
      tx-band=5ghz tx-frequency=5680 rx-band=5ghz rx-frequency=5540 rates-b="" rates-a/g=54Mbps framer-policy=exact-size framer-limit=4000

tully · November 6, 2007, 9:54am

The supported rates are screwed up. You should probably do a system reset and start over.