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armandfumal
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Sextant link speed

Wed Apr 25, 2012 5:52 pm

Hi,

I use 2 sextant with bridge and stations WDS

the best link speed in lab is 6Mbps/6Mbps

I have selected 20/40MHz HT above.

What's wrong ?

thanks
Armand Fumal
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honzam
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Re: Sextant link speed

Wed Apr 25, 2012 5:55 pm

What configuration? 802.11A, 802.11N or 2x2 MIMO?
Whar protocol? 802.11, nstreme or NV2?
What version of routerOS?
What signals on both sides?
LAN, FTTx, Wireless. ISP operator
 
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armandfumal
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Re: Sextant link speed

Wed Apr 25, 2012 6:03 pm

802.11N
NV2 802.11
5.15

Both sextant is in a lab 3meters, signal full
may be to close ?
Armand Fumal
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0ldman
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Re: Sextant link speed

Wed Apr 25, 2012 6:18 pm

Probably.

Connect with Winbox or web and check the signal level. You should be -50 to -75. You are probably -30 or stronger.
 
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armandfumal
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Re: Sextant link speed

Wed Apr 25, 2012 6:54 pm

I found

in the winbox, interface wireless, HT MCS, they are only MC0 to MC15
in the webif they are MCS0 to MCS23, I click all to MCS23

and now it is better, go up 180MBps in the lab.

bug ou version of winbox ?
Armand Fumal
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0ldman
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Re: Sextant link speed

Wed Apr 25, 2012 7:13 pm

What is your signal level? Not the lights on the back, use the web interface or Winbox, wireless status, rx/tx signal level.

It isn't possible to answer your question without you answering ours.

Sextant can only use up to MCS15 as I understand it. MCS 16 and above are for 3x3 MIMO.
 
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armandfumal
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Re: Sextant link speed

Wed Apr 25, 2012 7:31 pm

status: connected-to-ess
band: 5ghz-n
frequency: 5200MHz
wireless-protocol: nv2
tx-rate: 150.0Mbps
rx-rate: 180.0Mbps
ssid: WISP-Cybernet-1
bssid: 00:0C:42:6D:A0:FE
radio-name: 000C426DA0FE
signal-strength: -44dBm
signal-strength-ch0: -46dBm
signal-strength-ch1: -47dBm
tx-signal-strength: -42dBm
tx-signal-strength-ch0: -46dBm
tx-signal-strength-ch1: -44dBm
noise-floor: -120dBm
signal-to-noise: 76dB
tx-ccq: 84%
rx-ccq: 79%
authenticated-clients: 1
current-distance: 1
wds-link: yes
bridge: no
routeros-version: 5.15
last-ip: 192.168.88.1
current-tx-powers: 6Mbps:22(22/25),9Mbps:22(22/25),12Mbps:22(22/25),18Mbps:22(22/25),24Mbps:22(22/25),
36Mbps:22(22/25),48Mbps:20(20/23),54Mbps:19(19/22),HT20-0:22(22/25),HT20-1:21(21/24),
HT20-2:21(21/24),HT20-3:21(21/24),HT20-4:20(20/23),HT20-5:19(19/22),HT20-6:19(19/22),
HT20-7:16(16/19),HT40-0:21(21/24),HT40-1:21(21/24),HT40-2:21(21/24),HT40-3:21(21/24),
HT40-4:20(20/23),HT40-5:19(19/22),HT40-6:18(18/21),HT40-7:15(15/18)
notify-external-fdb: no
Armand Fumal
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0ldman
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Re: Sextant link speed

Wed Apr 25, 2012 9:45 pm

Try dropping your tx power. -45 should work, but may still be too much.

I'd drop both sides down to around 8 to 10dBm tx power and see how that does.


Before you take them out to install, you probably will want to set tx power to default again, then adjust as needed on site.
Last edited by 0ldman on Wed Apr 25, 2012 10:46 pm, edited 1 time in total.
 
InoX
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Re: Sextant link speed

Wed Apr 25, 2012 9:56 pm

you must make some traffic between them and signal over -45
 
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armandfumal
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Re: Sextant link speed

Tue May 29, 2012 12:27 am

Hi all,

So now in the real environment, all is ok.

thanks for help
Armand Fumal
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