Wireless for site to site

[passive]

Morning Everyone

I need some info and help from all the wireless experts on this forum.

Basically in short I’ve got two sites about 5km apart (as the crow flies with tower in between) and only one of them is high enough to see the Local Water Tower (I don’t have direct line of site between the two sites maybe when step 1 is done)

The link needs to be stable seeing I’m going to use is it for Pastel (Accounting and Payroll) and VIP. A lot of large file transfers.

Okay so here goes.

Step 1:
We need to build a small tower about 15m high for the one site to get good reception (currently -90db) to the local tower. If we go up about 15m I expect to see -40db to -45db.

Step 2:
Get all the wireless equipment installed on the two sites and on the local water tower.

Step 3:
Setup the sites with an encrypted IPSEC VPN link.


What kind of speed can I expect from the following wireless equipment? Is 80mbps (10MB/s) possible maybe more or am I pushing it?

1. 26dbi/31dbi 5.8Ghz grid & transceiver & Bullet M5 radio device
or
2. Nanobridge M5 / NanoStation M5
and
3. MikroTik 750 router board

Any comment or suggestions are welcome

PS.

How can I check to see if these guys are licensed to provide me with wireless link(ICASA)

 

[Mal1ce]

1.) Bullets and grids of that size are totally overkill, forget them.

2.) Nanostation's have quite a wide beam width , Nanobridge's are more directional, but again for a 5km link overkill, you'd have to turn the output power down alot. Either should work.

3.) Under ideal conditions (perfect fresnel, no channel noise, etc) that sort of throughput is achieveable.

 

[passive]

@ Mal1ce

Thanks for the quick reply

Why do you think, are they quoting us on Bullets and grids?
I was also thinking Nanobridge how powerful are these things?
Good to know it’s possible.

 

[Mal1ce]

Nanobridges are plenty strong, guys on the UBNT forums consider 5.5 mile links to be tiny, so the 22dbi units will easily do your requirements.

In terms of why they're quoting on Bullets I have no idea, depending on the amount of channel noise in your area and how much noise you're comfortable with introducing into the spectrum, you can either go with the Nanostations or Nanobridges, best to do a scan first and see

 

[francoistk]

I would personally probably go for the Nanobridges. They should work quite well for what you want to do, and just tweak the power down on the units.

 

[passive]

Hi

Thank You for your replys

It`s good to know that it will work.

Will ask the guy if we can rather install nanostations or nanobridges.

Thanks Again

 

[Mal1ce]

Once your link is up and running, please post the results/pictures/etc back, would like to see how it goes?

 

[passive]

Will do.

Still waiting for the matrial for the Mini Tower. The wireless should be installed by the end of next week.

Thanks for all the replies.