low signal after replacement omnitik with netmetal5

RouterOS Wireless Networking
1

before replacement :
App: OniniTIK 5
CPE: sxt 5
signal to noise more than 40db

after replacement
App: netmetal5
CPE: same old cpe (sxt)
signal to noise less than 25db

same configurations,same place and same position

this is my configuration

APP

/interface wireless
set [ find default-name=wlan1 ] default-forwarding=no disabled=no \
    disconnect-timeout=15s frequency=5240 hw-retries=12 mode=ap-bridge \
    radio-name=smartnet5g rate-set=configured rx-chains=0,1 ssid=smartnet5g \
    supported-rates-a/g=6Mbps,9Mbps,12Mbps tx-chains=0,1 wds-default-bridge=\
    bridge1 wds-ignore-ssid=yes wds-mode=static wireless-protocol=nstreme
/interface wireless nstreme
set wlan1 disable-csma=yes enable-nstreme=yes framer-limit=4000

CPE

/interface wireless
set [ find default-name=wlan1 ] disabled=no disconnect-timeout=15s frequency=\
    5280 hw-protection-mode=rts-cts hw-retries=15 mode=station-wds \
    proprietary-extensions=pre-2.9.25 radio-name=hrkl rate-set=configured ssid=\
    smartnet5g supported-rates-a/g=6Mbps,9Mbps,12Mbps wireless-protocol=nstreme \
    wmm-support=enabled
/interface wireless nstreme
set wlan1 enable-nstreme=yes
2

You have additional pigtails and different antennas for sure. The difference in configuration need to be checked carefully too.

3

You can’t just replace one radio with integrated antenna, with another one without antenna.
So the difference is in the anntena. Maybe you forget to install it? :smiley:

4

lol :smiley:

yes i have ubnt AMO-5G13 DualOmni 5GHz, 13dBi AirMax and cable ACRPSMA-Flex-guide

i tried all channels ,
i just transferring 20 MB only

5

That antenna has electrical downtilt, so in some cases, a lot of them, it will perform bad. Try tilting antenna and see if some of the cpe’s will get better signal. You might need to install it higher or lower…

6

Agree the downtilt is most likely the issue here. Ubnt antennas are excellent but most have an electrical downtilt so they need to be considerbly higher than the stations they serve

7

Unfortunately with an omni your only option is to raise it

8

thanks guys , i will try to make it higher and check then make a feed back if any changing.