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Could you possibly get line of sight using 2 cantennas so that they are both mounted outside the building(s) in question?
 
Free air wifi over 150yd will be low-bandwidth and unreliable, plus will take a lot of time to set up / tune. If you're buying antennae, they aren't cheap, especially good ones.

Posters above are right. Fibre optic is probably the way to go. You've told us very little about your situation - is it between two buildings or one? Does your employer own the whole lot? is it for work or personal use? Do you have access to the full 150yds? Which country are you in?

Buy a pair of dumb fibre converters - (ethernet/fibre) - plug and forget, cheap, high bandwidth and reliable, and some cabling:

http://www.google.co.uk/webhp?&q=fibre converters

150m cable: http://www.lindy.co.uk/150m-fibre-optic-cable-sc-to-sc-50-125microm-om2/46623.html
 
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That solution above sounds really good, I was just thinking a pair of MoCA adaptors and a really long RG6 cable might do, but.. it costs about the same really.
 
Wifi works well

Hello,

In contrary to the claims that wifi would not be possible here, I can guarantee that it would work well as long as you can put one antenna in each end and they are in LOS.
I have been sharing Internet access between two buildings 300 m apart with a solution based on a dlink ap (dwl2000ap in bridge mode) and a directed antenna (about 50$) in each end.

Really simple to set up and it has worked flawlessly for 4 years. I don't remember the top speed locally but I always have enough so that the bottleneck isn't the wifi but rather the adsl (8Mbit)
 
you'll need a PoE injector if your router doesn't support PoE, and then you can use an expander like this one

http://www.veracityglobal.com/products/ethernet-and-poe-extension/outreach-lite.aspx

get 200 meters out of it and no additional power supply required where the extender resides.

£50 for the injector
£100 for the extender

Depending how much you want to spend you could get an extender that will also forward the PoE and get upto around 1km distance.


Or use the coax version here

http://www.veracityglobal.com/products/ethernet-over-coax/highwire-powerstar.aspx
 
Wirelessly posted (Mozilla/5.0 (iPhone; CPU iPhone OS 5_0_1 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Version/5.1 Mobile/9A405 Safari/7534.48.3)

simsaladimbamba said:
Wirelessly posted (Mozilla/5.0 (iPhone; CPU iPhone OS 5_0_1 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Version/5.1 Mobile/9A405 Safari/7534.48.3)

Did u miss my post?

It was a wee bit small. You need to use the Comic Sans font, with pink letters, to actually get attention here.

On a more serious note, do you those homeplugs?

I do!

I currently use the LAN version to connect my extreme to my router which is over the other end of my apartment. And to connect the tv and apple tv to the network. There great!

My last place I used them as above plus a wireless on 400foot down the back garden in the garage!

Can't fault them
 
Stated maximum cable run for 1000-base-T is 100 meters. So, you can do this with one cable repeater. (Hint: you just need a cheap switch...) Of course, you don't need 1000-base-T, but, unfortunately, the limit is the same for lower-speed standards as well.

If you can't run a cable, consider a router that has an external antenna connection and use a cantenna. I've made my own, and highly recommend this can (as well as the local coffee roaster that provides them...) which has ideal dimensions:

http://images.google.com/imgres?q=c...&tbnw=216&start=0&ndsp=34&ved=1t:429,r:21,s:0

(The classic "Yuban" can does not have the right ratio of height/width). This can is close to ideal.)

If this won't do the job, I'd consider purchasing the longest commercial Yagi you can afford and have room for.

I can see at least a couple hundred WiFi nodes off my balcony with this, including several a couple of miles across San Diego Bay. Nothing special at the other end, either, just WiFi for a restuarant. I think any time my Internet goes out, I'm covered. ;)
 
I knew the cantennas would work!

ugh, can't believe I didn't think of just taking 2 strands of ethernet and sticking a switch in between them lol. So embarrassing! That is probably by far the cheapest solution.

Wireless over a long distance should be totally fine, I don't get the complaints about lag and such - we go much further than that with cellphones and you can get ~50ms on a phone hundreds of feet from a tower no problem!
 
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