AP separation recommendation/back to back recommendation

RouterOS Beginner Basics
1

I have a BH that is failing due to foliage growing up. The foliage is on a ridge midway between the BH radios. The overall link is about 3.5 miles and has been working fine until this year. Now that the foliage is coming in my power level is down around 86dbi on my 5.8 link and I am beginning to experience drops.

I am using arc 23dbi panels on xr5 cards.

The real issue is that I can’t cut the foliage and can only gain minimal height. (perhaps 10’ max).

One thought is to make a 900mhz bh and double the channel width to keep the available throughput around 6mb. I do have enough spectrum to do this. The concern is that at one end there is already a 900mhz xr9 card serving customers. In essence there would be two 900 cards on the same 433ah board (back to back). I haven’t done this before. Has anyone tried this and what was their experience.

What kind of separation both horizontal and or vertical is recommended? I don’t have much room for vertical separation. (Perhaps 10’) that I could space them out. I could potential set up another distribution point 50’ to the side. If I do this should this be the opposite polarization?

Any creative thoughts are welcomed.

2

Hello,

I think that if you use diferent channel and diferent polarization, you won’t have problems. Keep the 2 antennas separated minimum 1.2 meters one of each other too.

3

I can use a 900 channel at the opposite end of the spectrum and use different antenna polarizations. 1.2 minimum meters isn’t bad. I can do 2meters comfortably on this facility with vertical separation.

I’ll give it a shot in the coming week or so and see how it goes.

4

Good luck!