Hello everyone.
I would set up wireless connection between 2 pc(1 server, 2-station). Distance is 1km and there is no straight visibility(there are buildings,factories enroute)
Maybe i should use 2 parabolic dishes. Or some advanced AP and strong wifi net card?!
Re: wifi over 1 km
You should use 900MHz equipment designed for NLOS. You will not have any luck using 2.4 or 5GHz for NLOS.Hello everyone.
I would set up wireless connection between 2 pc(1 server, 2-station). Distance is 1km and there is no straight visibility(there are buildings,factories enroute)
Maybe i should use 2 parabolic dishes. Or some advanced AP and strong wifi net card?!
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stephenpatrick
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I guess I should go tell my two NLOS MT 5.8 shots that they shouldn't work, eh?
There are some "true non-LOS" radios on the market.
none of them are cheap.
Orthogon
Alvarion
Redline
It would be lovely to have an MT-based non-LOS solution but currently there is no way to do it.
Regards
One is a knife-edge refraction over a church roof to a building in a dip beyond, the other is a reflection off the bowl of a water tower to a building out of sight at the base of the water tower. Both are running at at least 99.95% and are about 1km end to end.
OFDM 5.x or 2.4 works well in a reflective NLOS environment.
We do use both Redline (not bad) and Orthogon (fantastic) for really scary stuff, but MT does much better than many would expect. We also have a decent sized Trango 900 deployment.
George
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stephenpatrick
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Impressed ...
What modulation rates and throughput do you get on those?
Recently we put some laser links in for a UK power station between 2 points non-LOS. Well you can't do non-LOS on one laser so we put the repeater site on the tower.
Previously they tried Orthogon (yes I hear it's the best of the bunch) but the throughput was too low, they wanted LAN and VOIP for many users.
Didn't suggest our radios in the above, we haven't yet gone round testing non-LOS. Our biggest "stress test" so far was near-LOS, 8.2km obscured fresnel over the sea. 40Mbps measured throughput using 5GHz-turbo, 2x24Mbps modulation rates. Larger antennas would have had 60-70Mbps through it, as we only had -72dBm to play with.
Regards
What modulation rates and throughput do you get on those?
Recently we put some laser links in for a UK power station between 2 points non-LOS. Well you can't do non-LOS on one laser so we put the repeater site on the tower.
Previously they tried Orthogon (yes I hear it's the best of the bunch) but the throughput was too low, they wanted LAN and VOIP for many users.
Didn't suggest our radios in the above, we haven't yet gone round testing non-LOS. Our biggest "stress test" so far was near-LOS, 8.2km obscured fresnel over the sea. 40Mbps measured throughput using 5GHz-turbo, 2x24Mbps modulation rates. Larger antennas would have had 60-70Mbps through it, as we only had -72dBm to play with.
Regards
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saintofinternet
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Re:
hi,They both run at 24Mb air rate and we get about 17 UDP / 11 TCP across them.
George
could you please post the screenshot of the settings?? also if you have any photos of the sites.....
really interested in knowing how you pulling this off...
-sid
Re: Re:
hi,They both run at 24Mb air rate and we get about 17 UDP / 11 TCP across them.
George
could you please post the screenshot of the settings?? also if you have any photos of the sites.....
really interested in knowing how you pulling this off...
-sid
THIS IS ALMOST TEN YEARS OLD. Do you really think the poster is still around?
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