It is interupting the freshnel |zone some. High gain antenna's and Sr5's You will make the link. -Jordan
first of all I thank you very much for your answer.
yes you could do that, however im not saying it will make the link. But it will be tons better than what you have now. You can try if it dosent work then you will have to upgrade your antenna to like 29 dbi. On ebay right now there selling some Sr5's cheaper if priceyness is an issue.. Just do a search for ubiquiti... Im to busy to chat online, best stay on the fourm. And really inox said it best first i just backed him up and brought in freznel zone. He knows what to do aswell -Jordanfor example you mean that I can keep my routerboard 133c using an antenna more than 19dbi and change the radio chipset with the SR5 (more powerfull)
now i have the athreos ... something I can't remember.
In case can you suggest me a complete product ?
is better grid antenna or panel antenna like the one i have now ?
Who said it was None line of sight? And IS it LOS oR NLOS???? IF NLOS Xr9 Times 2 High Gain Directional antenna's Times 2... -JordanNLOS at 5ghz???
I do not understand XR9 Times 2.... etc.. can you explain better please ?Who said it was None line of sight? And IS it LOS oR NLOS???? IF NLOS Xr9 Times 2 High Gain Directional antenna's Times 2... -JordanNLOS at 5ghz???
Its pretty fair, But you could probibly throw something together cheaper if you get cards off from e-bay. Then again it is used. But that would work for one side of your 900mhz backhaul link. Then again the 900mhz antenna did not say how man dbi it was...i hone not to be out of rules but this product could be good ?
http://shop.defactowireless.com/s.nl/it ... egory=1039
Thats a good distance, but as long as it is Line of Sight 5.8 will reach that. If it is Not line of sight then 900Mhz, should do it. Good luck -Jordan
Brr, Why you start with so complicated config?In the mikrotik I set the TX in BRIDGE mode with 5ghz - 5180mhz antenna gain 19dbi and manual tx power to 11dbm
RX in WDSSLAVE mode with 5ghz - 5180mhz antenna gain 19dbi and manual tx power to 11dbm
Your antenna config is correct. But i bleieve the Sr5 has more output than that. maybe im thinking the Xr5.. I dont know.Hi I'm back.
thanking you now my ideas are more clear...
So for example if I try to make my kit i would like to use:
1 grid antenna 30dbi for 5ghz
1 routerboard R333
1 radio miniPCI SR5 (400 mW)
1 little cable to attach the antenna (N-FEMALE) to radio (MCX)
1 box for outdoor where put the routerboard
Is it correct ?
Now i need an answer to my question:
I live in Italy and from what I know in italy you can use a max of 1W (30dbm) EIRP
The 30dbi antenna gain should be add to the radio power (4W) ???!?!?!
if you use an Antenna with more than 20 dbi, you will not need a high power card, because every 5 GHz- capable card is able to give you at least 12 db at every speed-rate. Like you said, in Italy there are only 30 dbi EIRP allowed, so you have to add the gain of the antenna and the power of the card, and then subtract the loss of cable / connectors. As you use antenna with RB inside, the loss wil be 0,5 db at max.
You should choosee a card with high sensitivity on incoming signal, for me r52 from Mikrotik or Wistron cm9 work really good.
And don't use manual tx power, I had lots of trouble with that. Just choose the right country in RB133, use outdoor frequency (Germany it is 5500-5700 MHz, I think Italy should be the same.) Then insert your Antenna gain in routerboard / winbox.
Oh, and I suggest using routeros v. 3.x, the newest you can download on MT homepage (mipsel, RB1xx Version)
How to upgrade is in the wiki and in the forum, just look for it.
If you just like to bridge to places with RB, there is no need for an RB333, because you will only get about 1,5 to 2 MByte/sec at that Distance, if you don't exceed the power-limits.
And that's also possible with RB133, RB333 will not be much faster (if at all) on such Distance.
There is a WDS-bridge howto in the wiki, if you follow that exactly, you will get your link, if it is possible at all.
I would test the RB's first at your home, distance of 10 to 50 meters, (without the large antennas, but you have to use at least two mini-dipole (the ones mounted on most of the soho-Acces-Points) or else you could blow your wireless-cards.
And make sure you have the antenna connected to the correct pin of the card (refer to manual of manufacturer or website of manufacturer for information)
One last thing, the greater the gain of an antenna, the more precisely you will have to align it.
To do that put both antenna and RB in position and check the correct alignment of one with a laptop or similar and move the antenna softly and slowly from side to side, watching the signal in winbox. If you have best possible signal level, do the same for up and down direction. Then go to the other end of your wireless link and do the same.
Now you're set.
In Europe, 900MHz Frequency is not allowed, sadly, so no use for SR9 for us.
I thought this wasent LOS.... NLOS... I dont know...Hi Stefano,i've just bought this spotting scope, hoping to get the line of sigh !!!!
what's you think about it ?
some of the comments on here amaze me , for 12km LoS at 30dBi limit you only need normal R52 cards, no need for XR5's!! etc..
if you used your 30dB! antenna then you would only be able to drive it with 1 milliwatt (0dBm) !, allowing for cable losses etc.. that maybe nearer 3dBm at the card.
two 30dB antennas will give a very good signal, really hard to align! but good. thats a total link antenna gain of 60 dB, so as mentioned earlier the path loss is say 129dB, subtract 60 leaves 69 so with 0dBm of antenna drive the signals will be about -69dBm which is good enough for a link.
another simpler option is two RIC522C's, thats about 22dBi gain each end, set the cards to ~9dBm (allow for pigtail losses) and you have a link the same as the dishes but without the coaxes, dishes and hassle
as mentioned, set one end to station, other end to bridge. or turn on WDS at the bridge and use station-wds for a better bridge. (you can bridge station-wds with an ethernet port!, you cannot station mode)
In most wireless cards there is an offset in the drivers in the card atleast with mikrotik. usually 10-8dbi. IN 3.0 that offset was automatically compensated. That is what you are seeing there the Offset. So if you want 26dbm you put in 16dbm. Or whatever the offset of your card is. Just google your card with offset in the search. Like "Ubiquiti xr2 offset table"offset ?!?!?!
can you please explain better ?