Hello,
I’m a new user here and I have a problem with 70 KM link. The scenario is as follows: RB433 (interface named as wlan1 has R5H card on each locations). Antennas are dual polarity 30dBi dish with large radius. However, I am not getting what I expect here. As you can see from the screenshot about 6-10M goes through this interface but It should be at least 15-25 at night.
What am I getting wrong here?
What is the signal?
Turn on nv2 protol.
If you have have dual polarity antennas you need 2 chain 802.11a/n cards. Something like:
http://routerboard.com/R52Hn
On 2 chain cards throughput is much better.
Please paste ur wireless configuration here . and what are the signal strength and TX/RX ccq level ?
Agree with Łukasz : Enable NV2 but before enabling upgrade to ROS 5.14.. much stable throughput on NV2 with ROS 5.14.
As you can see from wireless settings n2v is turned on Wireless protocol:nv2 nstreame
All settings are the same on card that transmits and on card that receives signal. Signal streangth is tx/rx -64/-61 and throughput tx/rx 90Mb/80Mb but in real it is no more than 10M 
Are you sure that you have card R5H http://routerboard.com/R5H ?
This is 802.11a card - you must have different card if you have set band: 5GHz-only-N.
Show TR/RX CCQ.
Please paste advance information of both radio.
/int wireless pr advance
the TX/RX signals are good, it will definitely give better throughput then this.
By the way, for better performance of NV2 use ROS 5.14.
i don’t think there are many antennas that work good in 5.9ghz…
wireless settings:
R name=“wlan1” mtu=1500 mac-address=00:0C:42:62:CC:A3 arp=enabled disable-running-check=no interface-type=Atheros 11N radio-name=“000C4262CCA3” mode=ap-bridge
ssid=“OKRESANICA-HANKE-M.S” area=“” frequency-mode=superchannel country=ireland antenna-gain=0 frequency=5900 band=5ghz-onlyn channel-width=20/40mhz-ht-above
scan-list=4920,4940,4960,4980,5000,5020,5040,5060,5080,5100,5120,5140,5160,5180,5200,5220,5240,5260,5280,5300,5320,5340,5360,5380,5400,5420,5440,5460,5480,5500,5520,
5540,5560,5580,5600,5620,5640,5660,5680,5700,5720,5745,5765,5785,5805,5825,5845,5860,5865,5880,5900,5920,5940,5960,5980,6000,6020,6040,6060,6080,6100
wireless-protocol=nv2-nstreme 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 distance=dynamic tx-power-mode=default noise-floor-threshold=default nv2-noise-floor-offset=default
periodic-calibration=default periodic-calibration-interval=60 dfs-mode=none wds-mode=disabled wds-default-bridge=none wds-default-cost=100 wds-cost-range=50-150
wds-ignore-ssid=no update-stats-interval=disabled bridge-mode=enabled default-authentication=yes default-forwarding=yes default-ap-tx-limit=0
default-client-tx-limit=0 proprietary-extensions=post-2.9.25 wmm-support=enabled hide-ssid=no security-profile=default disconnect-timeout=3s on-fail-retry-time=100ms
preamble-mode=both compression=no allow-sharedkey=no station-bridge-clone-mac=00:00:00:00:00:00 ht-ampdu-priorities=0,1,2,3,4,5,6,7 ht-guard-interval=any
ht-supported-mcs=mcs-0,mcs-1,mcs-2,mcs-3,mcs-4,mcs-5,mcs-6,mcs-7,mcs-8,mcs-9,mcs-10,mcs-11,mcs-12,mcs-13,mcs-14,mcs-15,mcs-16,mcs-17,mcs-18,mcs-19,mcs-20,mcs-21,mcs-
22,mcs-23
ht-basic-mcs=mcs-0,mcs-1,mcs-2,mcs-3,mcs-4,mcs-5,mcs-6,mcs-7 ht-txchains=0,1 ht-rxchains=0,1 ht-amsdu-limit=8192 ht-amsdu-threshold=8192 tdma-period-size=2
nv2-queue-count=2 nv2-qos=default nv2-cell-radius=30 nv2-security=disabled nv2-preshared-key=“” hw-retries=7 frame-lifetime=0 adaptive-noise-immunity=none
hw-fragmentation-threshold=disabled hw-protection-mode=none hw-protection-threshold=0 frequency-offset=0 rate-selection=advanced
tx/rx CCQ: 37/20%
CCQ is to low. Try to change frequency.
Use ‘frequency usage’ to find best channel.
After changing frequency and upgrading to ROS 5.14 i’m getting up to 23M on bandwidth test and this is where RB433 cpu goes to 100%. I’m going to replace this RB with RB433AH today and see what’s gonna happen.
Can somebody give me a tips for tweeking tx/rx power?
You were right about the card. It is R52hn, my colleague just checked on the field. So do you suggest me to set the band to 5GHz 8011n?
Any other tweeking with tx/rx power?
Yes set 802.11n.
Do you have in tab ‘HT’ chain1 enable?
Yes set 802.11n.
Do you have in tab ‘HT’ chain1 enable?
Yes and now I have 64M on bandwidth test tx but on rx I have only 6M. Ping is much better. Tx/rc ccq is still bad.
Use ‘frequence usage’ and chose better channel. Changing ‘channel width’ to 20MHz you decrease throughput but increase quality of link - try change it.
What antennas exactly you use?
After change show screenshot.
What type of antennas do you use ? Did you try lower frequencies ?
70km, respect … We have 22km long link and it is running nstreme-dual for good, very good, but 70km ? Quite unreachable for us. What about the TX power ? 
try udp test instead of TCP and chk the bandwidth test one by one (Transmit and recieve separately)…
Do you have other links running on 5Ghz on the same POP…
If you have any noise at all, you want to drop that 40mhz channel and only use 20mhz, you will probably also get a stronger signal doing so therefore you will be faster and not waste wireless spectrum.
country=ireland
@dobrnja
Where are u located?
Located in Bosnia. Ireland gives more frequencies to choose.
I have successfully managed to setup another n link. It is 30 KM distance with tx/rx ccq 90/93, signal tx/rx 56/56 270Mbps/270Mbps, bandwidth test goes up to 195Mbps, ping 2ms…works like a charm. Cards are R52HN with panel antennas.
