Nanostation M5 Broadband Link speed

[TMcS]

Hi there. We have set up 2 M5 Nanostation  units to transmit broadband from 1 dwelling to another approx. 1.5km away and area between has a tidal flow. Upload speed is 30MB/s showing little drop off compared to source but download speed is showing a considerable drop at 10 to 40MB/s when compared to source of round 100. Speed test due with generic online app. Speed test on ubiquiti app shows 125-150MB/s potential. Hope this makes sense as I am not an expert by any means!!

See attached screenshots of 2nd unit.

Thanks in advance for your help.

Trevor

[ValleyView]

the signal difference between H/V chain is to big. possible alignment issue.

can't see anything else of an issue.

speed test is better done between two laptops located on each side of the wireless link. suggest use iperf,

[TMcS]

Thanks for your feedback. Am I correct is saying all setting seem ok and alignment appears to be only issue causing drop in speed?

Horizontal/ Vertical is -63/ -72 dBm approx. What would be a good target setting to try and achieve by adjusting alignment? Also any tips on best alignment steps  most welcome for a newbie!

Much appreciated.

Trevor

[UBNT-JoshMcGee]

Go through the articles in the help center here.
https://help.ubnt.com/hc/en-us/sections/200893174-airMAX-Troubleshooting

This should set you on the right path and help narrow down potential problems after adjusting alignment. The optimal target signal is a balanced -50db.