500ft outdoor wireless

Hello.
I want to connect two buildings at 500ft. I have roof access for the antennas with line of sight, routers will be inside and protected. I already have 6 2.4ghz directional 14dbi antennas.

Speed is nice but reliability is a bit more important. We will have some voip so jitter can't happen. I want to make sure the 2nd building can be on the same subnet as the 1st building's lan. Both of these models are N which I like.

Has anyone tried building-to-building with either Hawkings HWABN1 or Engenius' ECB9500? I'd get 2 of whichever and connect the antennas to it. Any reason why I'd pick one over the other? If anyone has real-world experience with this type of setup and observered throughput it'd be nice to hear. I was hoping to get 50mbps with N and 20mbps with G. Hopefully 5ms response time.

Thanks!
BiSHGoDAsked:
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luc_royConnect With a Mentor Commented:
All I can say is I have used the "HWABN1 - Hi-Gain Wireless-300N Access Point/Bridge " many times.  I have never had issues.  I have used it with a several different antennas also but always go back to hawking ones.

I used them in snow, Harsh sun areas, and high rain areas.  They work great and have great security with the point to point MAC address feature that prevents others from connecting.

I love that they can be both access points and bridges, point to point or multi point.  They have a ton of flexibility.

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dinsjCommented:
you want to get a yagi aerial they will only service your requirement for 500ft but but will go a lot further

http://www.google.co.uk/products?q=yagi+wifi+antenna&hl=en&aq=1&oq=yagi+
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BiSHGoDAuthor Commented:
luc_roy:
Thanks for the response. I tried this setup with 2 HW2R1's (smart-repeaters/routers) and had all sorts of issues. Both had to have different SSIDs broadcasting and then they connected to the other's SSID for repeating. Probably because it isn't meant to bridge. I also had the problem where one would randomly drop, and in order to connect both had to be rebooted, sometimes a few times until it reconnected.

No odd problems like that with the HWABN1? Do they stay up for long periods of time?
I'm sure with LOS 500ft would be easy. I have 4 of the Hawking outdoor directional 14dbi antennas.
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luc_royCommented:
They were up for the 6 months I needed them.  As far as I know still up.  The 500ft was no problem. I was shooting almost 1KM.  The 14fbi should be OK, I have never used that one.  I started using the          HAO15SIP every time I needed one, unless I needed to stay directional.

I have never used the yagi but I have heard good things also.
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BiSHGoDAuthor Commented:
Cool. Last question. Did you ever try a bandwidth test between the points? Or atleast a file transfer to get an idea of what speed it's at?
I hear wireless N throughput is around 60mbps, G 20mbps. I have verified G at around 20-25mbps even with the bridges next to each other.

Just wondering what kind of speeds you saw with outdoor wireless on the Hawkings.
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engeltjeCommented:
Whatever (high quality) material is used: with the specs you have, there is no problem.
I once connected a school (2 buildings with a street in between, so there was no option to pull a cable :)

I used Alfa materials (Wireless G, only 6DB abtennas), and it's running for up to 2 years from now. There never has been any interruption, and no jigger on the line.

Since your mararial is way superior to what I had, you won't even notice the wireless.

Important: when you put the antenna's on the roof: ground them.
Measure the signal when pointing the antenna's to each other.  A small error in aligning them makes the system work but costs speed.
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BiSHGoDAuthor Commented:
Do you guys recommend using a single antenna or 2 antennas per AP? I hear people say both ways. This is N but I don't think MIMO.
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engeltjeCommented:
One antenna should do.
Two antenna's can speed up the connection in N mode (most cases, Wireless N even uses 3).
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luc_royCommented:
one per AP, and the bandwidth changed based on the conditions.
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BiSHGoDAuthor Commented:
I am using the HWABN1 but not getting great results. N is not recommended for wireless bridges, not as reliable as B or G. A is the best. It works pretty well for such a short distance though.
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