We purchased MikroTik mANT 30 full-pack dish antennas (MTAD-5G-30D3) along with the base box for the purpose of establishing an internet connection between our land base and sea platform (refer to attached pictures). These two points are approximately 6 kilometers apart, and we have installed the antennas accordingly.
One antenna is configured as a bridge at the land base, while the other serves as a station bridge at the sea platform, establishing a wireless connection between them.
Initially, we conducted a test over a short distance of about 200 meters in our yard to check the antennas and configurations. Although they were able to communicate, the signal strength was very weak.
However, after installing the antennas in their final positions (sea platform and land base), they are no communicating at all.
Below are screenshots of the bridge and station bridge configurations. We kindly request assistance in configuring or installing them correctly, as the point-to-point connection antennas are currently unable to communicate.
Mikrotik anntenna.rar (960 KB)
If you did not lower your TX power to 0 dBm, you are emitting at 60 dBm which is very illegal.
I have double checked the Tx limit and it is already 0 dBm, you can check with the configurations attached as a compressed file. Any other suggestions will be appreciated
is anyone expecting this to work with 0dBm output power?
since when are mikrotik users worrying about “emitting at 60 dBm” and that that would be “very illegal.” ?
it’s been like that for 20 years. nobody sane is expecting to use 0dBm output power for a production link, nor is expecting to follow the EIRP rules.
so, either turn up that output power to default (which should be about 22-23dBm) or change to a vendor that will allow you to actually use the link.
Thanks, I just changed the setting and now I put 22dB as Tx signal gain (btw which is the maximum dB allowed by this model).
Do you have any other suggestions?
you have to do that on both sides, and then take your time and make good AIM, it’s important to have them perfectly alligned.
at 6km with 30dBi dishes that should work perfectly.
i have 6km with 25dBi dishes over a bit of trees and have about -70dBm signal, and can pass about 75mbit of traffic.
the rest is pretty much unimportant, for ptp in clean air normal 802.11 will work better, but over water and with noise nv2 will work better.
Thank you for the comment and I noticed that I have to work with the line sight.
@Admincomms, You can register yourself at the MikroTik website and use the wireless link calculator in there, so you can play around with the power, gain and other parameters for each antenna and find the better estimated signal.
Sadly, you cannot set the antenna height for better estimation.
@martinclaro, Thanks for your suggestion! I was also wondering if there’s a specific tool or software that can help me achieve perfect alignment.
There is a procedure to fine tune alignment detailed here:
http://forum.mikrotik.com/t/problems-aiming-nray/174150/1
http://forum.mikrotik.com/t/problems-aiming-nray/174150/1
that was given about a nray, but it shouldn’t be different with the mant 30.