VERY Long Range Wifi Network Setup (in 25-50KM Nodes) Help Required

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cococabana

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Jul 24, 2012
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Hey guys, was wondering if any of you have hands on experience with very very long range wifi transmissions? I am talking about cross country transmissions with nodes after 25-50KMs. I know @tigsounds has the relevant knowledge but not sure if he is around anymore.

Anyways the setup I had in mind was using the Ubiquiti Long Range products which are usually rated at 50KM jumps. Ubiquiti airMAX Nanobridge M units for example or airFibre 5.... Can anyone of you chip in with the gritty details of the setup? Utter noob here. Need to do this for a thesis.
 
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The microwave radios are trivial to setup they are stupid bridge devices, you pretty much take them out of the box align them and you are good to go.

If you talk about running it across the street then it is a do it yourself project. When you are talking about longer distance the problems are always related to construction costs. a 100ft tower is going to cost you $10,000 mostly for the concrete.

Maybe you should first go read what fresnel distance is before you even think to go further. You will likely find why nobody is doing what you discuss.....especially where money is a huge issue.
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bill001g

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Aug 9, 2012
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Your major issue is fresnel distance when you need to go long distances which I will let you look up since this thesis project. Obtaining locations that you can place very tall towers tends to be the major issue. It tends to work better on licensed frequencies where you can transmit at higher power and also you don't need to worry about who else is using normal wireless in your path.

Really the only application that uses this a lot is cell phones since they need to have towers anyway and they do not want to pay for a connection to each tower.

I don't think anyone does this anymore for just a data connection because of the costs of the towers and there is fiber run pretty much everywhere. The only place that I have seen microwave type of data connections is in very poor third world countries. I know the company I work for we still have microwave network connection in hatti and namibia because that is all the telco can offer. Needless to say these are down a lot compared to a connection that is carried over fiber most the way.
 
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cococabana

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Jul 24, 2012
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The thesis isnt about actually setting up a network like this so you can help me :p its about providing education to very poor kids in sub saharan africa. The plan i have designed involves a microwave based network. Mostly i need already existing tech and products that i can use to calculate costs.
 
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bill001g

Titan
Aug 9, 2012
28,318
2,754
125,640
The microwave radios are trivial to setup they are stupid bridge devices, you pretty much take them out of the box align them and you are good to go.

If you talk about running it across the street then it is a do it yourself project. When you are talking about longer distance the problems are always related to construction costs. a 100ft tower is going to cost you $10,000 mostly for the concrete.

Maybe you should first go read what fresnel distance is before you even think to go further. You will likely find why nobody is doing what you discuss.....especially where money is a huge issue.
 
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cococabana

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Jul 24, 2012
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Ah i see, well like i said, i am pretty much a beginner at this. And isnt my way the cheapest way to setup a long range network? to my knowledge using the proper spectrum has licensing fees which would incur insane cost ( my provided budget is somewhere around $ 1 million) and exceed my budget. Could you point me in the right direction for this venture?

 
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