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tamahome
02-12-2009, 05:17 PM
Hello, I want to make a backhaul of 7km for a WISP repeater.
Would it be a reliable solution use a 90º 17db Hyperlink panel to get the backhaul to that node?
Im thinking of saving a few bucks cause this way I could use the Sector Panel Coverage to be backhaul as well for any other repeater I could mount later.

Both sides would use and XR5 card and in the repeater I was thinking of a Backfire Antenna (http://www.l-com.com/item.aspx?id=20600) againts the 90º panel.

I need 10 to 15mb of bandwidth to get 10mb internet acces to the Repeater to manage.

dishes are more big and expensive =(

Thank you.

WHT
02-12-2009, 05:26 PM
dishes are more big and expensive
What about a BBQ form factor grid antenna?

tamahome
02-13-2009, 02:53 AM
the saving bucks idea was about using the panel mainly for the coverage and dont have to put 2 xr5 with 2 dishes (even bbq) for 2 backhauls

I know its not the best way, but will the panel work for this porpuse? making maybe 3 o 4 backhauls, no more and not have to waste money in 4 dishes, 4 radios and 2 mikrotiks

WHT you rule! you´re everywhere =P

WHT
02-13-2009, 05:21 AM
WHT you rule! you´re everywhere =P
I've heard that includes the wildest frontiers of some peoples' twisted dreams.

WHT
02-13-2009, 05:25 AM
use the Sector Panel Coverage to be backhaul as well for any other repeater I could mount later.
This may not apply to you in your country or the application may not either...but here in the U.S. some people try to use add a few subscribers that are within range of a high power PtP backhaul link.

The moment you add more than one radio to a PtP line, it becomes a PtM and you need to use much lower power.

tamahome
02-13-2009, 06:13 AM
so it wouldnt work right having 2 or 3 links to one panel even they all use XR5 card right?

another issue in consideration is the use of the UPS, much RB will bring down the time it holds during a blackout.

WHT
02-13-2009, 06:27 AM
"so it wouldnt work right having 2 or 3 links to one panel even they all use XR5 card right?"

Not sure what your asking.

"another issue in consideration is the use of the UPS, much RB will bring down the time it holds during a blackout."

Get a bigger UPS :D

tamahome
02-13-2009, 06:30 AM
LOL, bigger UPS are expensibe, in Argentina cost 4 times more than US =(

about the link, would a 4 points panel backhaul be reliable enough to be call a backhaul?

WHT
02-13-2009, 07:00 AM
"4 points panel backhaul be reliable enough to be call a backhaul?"

Can you describe that better? I can't picture that.

tamahome
02-13-2009, 07:09 AM
XR5 + 17db 90º panel from NODE

Reapeater 3 stations in different places with XR5 and 17db Backfire Antenna each at 3km, 5km and 7km from the node.

Each station would be serving a WISP in 2.4Ghz.

WHT
02-13-2009, 07:59 AM
Ok, that's what I was thinking. See above where I said,

This may not apply to you in your country...

The moment you add more than one radio to a PtP line, it becomes a PtM and you need to use much lower power.

So a 17 dBi antenna could be used if you limited the XR5 to 19 dBm.

Also you can only use 24 dBm (250 mW) TPO in the 5.250-5.350 Ghz band.

Of course, this all depends on your country's regulations.

tamahome
02-13-2009, 08:58 AM
Why? What would happend if I use 600mw with 17db antenna at 5.8 and whats the difference in 5.4?

WHT
02-13-2009, 09:12 AM
For the U.S.:
In the 5.250-5.350 Ghz band, the EIRP is the same for a PtMP, you can't use more EIRP in a PtP, And TOP is .25 Watts
In the 5.725-5.825 Ghz band, you can use more EIRP in a PtP. And TOP is .80 Watts

guidonet
02-14-2009, 01:03 AM
Hola Tamahome, veo que sos de El Talar y por lo que dice tu web están redistribuyendo una conexion de Ertach, por lo que el aspecto legal no debe ser tu preocupación. Con la configuración que proponés no vas a tener ningún problema, hemos experimentado con la misma configuracion hasta con 8 nodos tomados de un solo panel y con 400 clientes en los subnodos a traves de ese panel sin problemas. Tené en cuenta que lo máximo que vas a sacarle será 15 Mb para repartir entre todo.

Just for the others...
Hello Tamahome, I see that you are from El Talar and reason why your webpage says you are redistributing a connection of Ertach (Telmex sub company), reason why the legal aspect does not have to be your preoccupation ( this is illegal in Argentina, so if you break this rule, over power your links will not be the serious problem) . Go ahead with the configuration that you propose, we have experimented with the same configuration until with 8 nodes taken from a single panel and with 400 clients in sub nodes through that panel without problems. The maximum that you are going to get from it will be 15 Mb to distribute between everything

WHT
02-14-2009, 10:41 AM
See if Ertach andTelmex have a channel partner program.

tamahome
02-14-2009, 12:10 PM
if so that would be 3.5Ghz and Im thinking expensive.

WHT
02-14-2009, 01:17 PM
That all depends what your country's regulations are for radio transmitters.

tamahome
02-14-2009, 08:16 PM
Thank you for all the support WHT, I would try 5.8 and 2.4 combination for my repeaters, also less power and not so bigger antennas to avoid interference.

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