25km 2.4Ghz Point to MulltiPoint

kokopelli · Thu Dec 22, 2005 8:24 pm

Compliment of the season...

I was going thru MikroTik site and I was wondering if its possible to design a 25km radius of 2.4GHz Wifi network.

Anybody have an ideal of the hardware requirement? CPE should be any wifi radio with 24dbi directional antenna in an urban setting.

Thanks

ejansson · Fri Dec 23, 2005 10:54 pm

In theory it would work with the SR2 cards but the isse wold be you will net a very high starting point. You need over 35m at each end with on obstructions add 10-20 meters for urban buildings and trees and your in the 45 meter range at both ends! Unless you have a 90m plus tower to work with plan on 8 to 16km of coverage at a maximum.

dbostrom · Fri Dec 23, 2005 11:18 pm

As ejansson says, it can work. We have a small handful of users at these distances but it's a matter of pure luck as they happen to be up on hillsides and can see APs that also happen to be highly elevated on topography. There's also the matter of then having to set very wide ACK windows for these unusually distant customers, meaning the ACK window is then slightly inefficient for closer connections.

kokopelli · Sat Dec 24, 2005 12:49 pm

Thanks guys, I would give it a shot and get back to you. If I can get 15km radius it would even be ok.

pinotage · Sun Dec 25, 2005 11:13 pm

we do a 33km radius currently, point to multi point, both sides SR2, one 15dbi omni, other 24dbi grid, low, stable pings of 4-6 ms, high mountain AP one end, other small hill

Coyote · Sun Jan 01, 2006 3:00 pm

hey guys i'm new on mt but very good in 2.4ghz wireless.
i wanna know what is sr3 cards????
can anybody help

artist1 · Sun Jan 01, 2006 3:32 pm

@Coyote

There is no SR3 card.. SR2 works on 2,4Ghz and SR5 works on 5Ghz, these two cards are 400mW with -98/-91 reciving sense. SR9 is dualband card 60mW.

Coyote · Sun Jan 01, 2006 4:56 pm

Thank you artist.
i have assambled a Pc In A case And installed the 400mlw card on it and used the case as a router mt router.
but still having problems how to get the extra channels on the mt. can you help??

artist1 · Thu Jan 05, 2006 6:00 am

You need to buy them with extra license from mikrotik...

jober · Thu Jan 05, 2006 6:26 am

Maybe he means SRC card?

microcom · Tue Jan 24, 2006 4:46 am

hey guys i'm new on mt but very good in 2.4ghz wireless.
i wanna know what is sr3 cards????
can anybody help

More information on Ubiquiti Networks' new SR3 miniPCI may be found here:

http://www.ubnt.com/supper_range3.php4

Microcom will distribute this product as it becomes available--Ubiquiti has not committed to a production release date yet. Hope this helps!

blankman · Mon Mar 13, 2006 6:47 am

@Coyote

i wanna know what is sr3 cards????

SR3 is a UBNT (http://www.ubnt.com) mini-pci card in the US Licenses 3.5GHz, 3.6Ghz unlicensed radio range, There is also SR4 (4.9GHz),SR9(900MHz), and LiteStatioin2 (SR2 embedded complete solution).

matt · Mon Mar 13, 2006 7:03 am

We run point to multipoint up to 20KMs with 15dB Yagi to 24dB Parabolic Dish with 200mW cards at each end. I have seen a netstumbler scan from over 80km's away with -80dB receive signals.

titius · Fri Mar 17, 2006 12:50 am

I presume kokopeli tought about 25 km Omni radius network...
well late answer but here it goes,

If you are in area without wifi networks you have clear air then it should work with 24db grids and 200mw cards

ab130kd · Fri Mar 17, 2006 11:42 am

we do a 33km radius currently, point to multi point, both sides SR2, one 15dbi omni, other 24dbi grid, low, stable pings of 4-6 ms, high mountain AP one end, other small hill

I have a point to multipoint like you but some times i lose some pings and i don't know why... Could you tell me your configuration? Bandwiidth test?
Mine is 3,5Mbps on tcp..
Ciao Carlo

25km 2.4Ghz Point to MulltiPoint

25km 2.4Ghz Point to MulltiPoint

33km radius

what is sr2 cards

Thank you

Re: what is sr2 cards

Re: 33km radius

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