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utocava
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antenna tower

Sat Dec 29, 2012 8:50 am

Hello,

I was used to build my 3x3Km net with SXT pack, Omnitik and few SXT.
I need now a stronger AP, much stronger than an AP, but in budget.
Also I do not need anymore an omnidirectional, but a sectorial antenna.
Anything stronger than "groove?"
Plz advice me.

best
 
InoX
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Re: antenna tower

Sat Dec 29, 2012 10:59 am

http://routerboard.com/RBSXT-5HPnD and buy a lvl4 license.
 
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honzam
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Re: antenna tower

Sat Dec 29, 2012 1:16 pm

Why buy L4 licence?

There is G SXT with level 4 licence http://routerboard.com/RBSXTG-5HnD
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utocava
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Re: antenna tower

Sat Dec 29, 2012 2:20 pm

I need a sectorial something stronger...
 
InoX
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Re: antenna tower

Sat Dec 29, 2012 2:39 pm

Why buy L4 licence?

There is G SXT with level 4 licence http://routerboard.com/RBSXTG-5HnD
look at the 6dbi diference in power output...
 
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honzam
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Re: antenna tower

Sat Dec 29, 2012 3:01 pm

I need a sectorial something stronger...
Use any sector 5Ghz antena with http://routerboard.com/RBGrooveA5Hn
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InoX
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Re: antenna tower

Sat Dec 29, 2012 3:12 pm

Anything stronger than "groove?"
Plz advice me.best
I need a sectorial something stronger...
Use any sector 5Ghz antena with http://routerboard.com/RBGrooveA5Hn
Would you like to be useful? Read all before you post something.

Metal Groove is more powerfull but you didn't say if you need dual chain or not. Sxt and omnitik are dual so I belive you still need dual. For that you need an ubnt 20dbi sector antenna and a RB711A 5HND. But you will not be in the budget I belive.
 
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honzam
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Re: antenna tower

Sat Dec 29, 2012 3:23 pm

I read his post, but there is no wirelles device stronger then grove (metal)

If you need single chain, you can use METAL GROOVE with sector antena
SAM_1971.JPG
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utocava
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Re: antenna tower

Sat Dec 29, 2012 3:28 pm

I am not sure what is the difference between single and double chain?
 
InoX
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Re: antenna tower

Sat Dec 29, 2012 3:43 pm

I rest my case.
 
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honzam
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Re: antenna tower

Sat Dec 29, 2012 5:14 pm

I am not sure what is the difference between single and double chain?
If your AP is omnitik and you have used both CHAIN - it means you use two polarization (Vertikal and Horizontal)
Then you need dual chain SECTOR antena with dual chain routerboard (rb7115HnD)

If you use only one polarization then you need single chain sector antena (in my previous photo) and single chain routerboard (groove or 711)
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ohara
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Re: antenna tower

Sat Dec 29, 2012 5:58 pm

Dual chain = improved throughput performance, more interference prone than single chain, two connectors on board (MMCX/UFL), two antenna connectors (N/SMA), referred to as multiple input multiple output (MIMO)
Single chain = less throughput, less interference prone than dual chain, one connector on board (MMCX/UFL), one antenna connector (N/SMA), referred to as single input single output (SISO)

In RouterOS each dual chain radio transmitter can be used in single chain mode.

Another feature added to 802.11N is MIMO technology. By using two antennas in different polarity or by using one dual polarity antenna in one side our MIMO radio can double the aggregate speed and we can reach 300 Mbps in Theory - from Deltaelectronics presentation, link enclosed below.

You will find further reading here
http://www.conniq.com/WiMAX/mimo-01.htm
http://mum.mikrotik.com/presentations/AE12/ahmad.pdf
 
tamilmaran
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Re: antenna tower

Sat Apr 27, 2013 11:03 pm

I read his post, but there is no wirelles device stronger then grove (metal)

If you need single chain, you can use METAL GROOVE with sector antena
SAM_1971.JPG
how much distance you achieve, what cpe are you using..?
If u like my post , then Hit the Karma! Thanks.
-
Thamizh Maran
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