What kind of Omni antenna's are you using? and what kind of sector antenna's are you using. It is important apon the type antenna's you use. Hyperlink is a good choice for sector antenn's in my opinoin. Also not to be harsh apon what your doing but this is good news to me due to the fact i will be setting up AP's with Omni antenna. that is why im slightly curious to see what omni you used to get 4km's? thanks -JordanI have tried like this: 1 RB532+1 RB502 with one R52H and three R52 is connected with One 2.4 Omni and 3 sector antenna respectively and another RB532+R52 with 1 sector antenna. The result is frustrating one. No improvement. The same routerborad and its configuration with 5GHz omni (omni has only 10 dB while sector has 16 dB) is hitting more than 4Kms. The sector is hitting less than 1 km. I suspect that the Mikrotik 5g D16(Sector Antenna) is not propagating properly. How I can check this. According to the experiences the sector should perform better than the omni. Any advise or experiences to share ????? please
Correct, the reason i wanted to know what type of sector antenna's he had is because it does matter much apon the antenna manufacture credibility to quality, It could be somebody making home made job antenna's and they have more Uptilit than downtilt to them. Buying good antenna's and most likely expensive is the key to getting good distance/less interference/and better signal quality.... I beleive what antenna he is using is relevant to determine the quality of the product, But when i asked the question it was more out of curiosity of to what distance can be acheived with certian DBI omni antenna's.. Thats all- Jordan
jordantrx,
I have a links >10 miles off 2.4GHz with 100%/100% signal quality.
It is irrelevant what omni is being used, to a degree.
My links mentioned are from a 9db PacWireless omni.
Terrain and noise, figure into the equation in a huge way.
Do not forget about altitude.....
Not to get off topic but what kind of antenna and radio did the client have? thats really good distance!!!omni is at ~115ft
client is at ~30ft
the client is on a grade which puts them at 50ft relative to the omni.
Hi jordantrx,What kind of Omni antenna's are you using? and what kind of sector antenna's are you using. It is important apon the type antenna's you use. Hyperlink is a good choice for sector antenn's in my opinoin. Also not to be harsh apon what your doing but this is good news to me due to the fact i will be setting up AP's with Omni antenna. that is why im slightly curious to see what omni you used to get 4km's? thanks -JordanI have tried like this: 1 RB532+1 RB502 with one R52H and three R52 is connected with One 2.4 Omni and 3 sector antenna respectively and another RB532+R52 with 1 sector antenna. The result is frustrating one. No improvement. The same routerborad and its configuration with 5GHz omni (omni has only 10 dB while sector has 16 dB) is hitting more than 4Kms. The sector is hitting less than 1 km. I suspect that the Mikrotik 5g D16(Sector Antenna) is not propagating properly. How I can check this. According to the experiences the sector should perform better than the omni. Any advise or experiences to share ????? please
All antennas and accessories are from Mikrotik. The 2.4 Ghz is 7 dbi Omni and 5Ghz is 16 dbi Sector(90 degree horizontal beam width and 5 degree vertical beam width)Correct, the reason i wanted to know what type of sector antenna's he had is because it does matter much apon the antenna manufacture credibility to quality, It could be somebody making home made job antenna's and they have more Uptilit than downtilt to them. Buying good antenna's and most likely expensive is the key to getting good distance/less interference/and better signal quality.... I beleive what antenna he is using is relevant to determine the quality of the product, But when i asked the question it was more out of curiosity of to what distance can be acheived with certian DBI omni antenna's.. Thats all- Jordan
jordantrx,
I have a links >10 miles off 2.4GHz with 100%/100% signal quality.
It is irrelevant what omni is being used, to a degree.
My links mentioned are from a 9db PacWireless omni.
Terrain and noise, figure into the equation in a huge way.
Do not forget about altitude.....
P.S Those are very good distances to be getting with an omni antenna i admit, You must have had them quite level with eachother with LOS?
Have you tried using another type of sector antenna's such has hyperlink, i know those antennas will shoot up to 10 miles.. It is ether your wireless cards are damaged slightly and not putting enough power out, or your cable pigtails and MMCX connectors are weak and the connect points are broken inside. Or you have a crapload of interference, But if you have interference on your sectors you would have it on your omni so it cant be that is the problem..... I think your best soulotion is to make sure your wireless cards are good (if you used the omni and the same wireless cards you used for the sectors i imagine they are good aswell). Make sure your cables are in perfect condition and tight... if all else fails. The only thing possible it could be is the sectors are not good, I have good experience with Hyperlink tecnologies sector antenna's very well built....... Well good luck ! -JordanHi jordantrx,What kind of Omni antenna's are you using? and what kind of sector antenna's are you using. It is important apon the type antenna's you use. Hyperlink is a good choice for sector antenn's in my opinoin. Also not to be harsh apon what your doing but this is good news to me due to the fact i will be setting up AP's with Omni antenna. that is why im slightly curious to see what omni you used to get 4km's? thanks -JordanI have tried like this: 1 RB532+1 RB502 with one R52H and three R52 is connected with One 2.4 Omni and 3 sector antenna respectively and another RB532+R52 with 1 sector antenna. The result is frustrating one. No improvement. The same routerborad and its configuration with 5GHz omni (omni has only 10 dB while sector has 16 dB) is hitting more than 4Kms. The sector is hitting less than 1 km. I suspect that the Mikrotik 5g D16(Sector Antenna) is not propagating properly. How I can check this. According to the experiences the sector should perform better than the omni. Any advise or experiences to share ????? please
我已经解释了所有的细节在我preivous职位。I will explain again. We have 3 towers. two of them are 45 m and other one is 25m but on a small hill. Each tower carrying one 2.4 GHz omni and 4 Sector antennas of 90 Degree each(5G D16, provided by mikrotik, 90Degree horizontal beamwidth, 5 Degree vertical beam width,16 dBi gain,5GHz). The 4 sector antennas are connected in a square bracket to get 90 Degree angle. The very first config was like this: One RB532 with 2 R52 wlan card, one is connected to 2.4 GHz omni and another one is connected to 4 way splitter connecting four sector antennas. The signal is not going more than 750 Meters..
Now the config is this: One RB 532+RB502(daughter board), 4 R52 Wlan card, Among these 4 Wlan card, one is connected to 2.4 GHz and three are connected to sector antennas individually. One more RB 532 with R52 wlan card is connected to fourth sector antenna. Still the result is same.
Tried with 5GHz, 10 dBi Omni, the result is amazing..... its shooting a range of 4+ KMs......
All equipments, components, accessories are from Mikrotik(2.4 Ghz Antenna, 5GHz Antenna, RBs,Daughter boards, connecters, factory crimped cables, Wlan cards etc ).. According to the experiences the sector should work well other than omni????? Any body can help...If you need debug these again I am very happy to provide...........
tgrand,jwcn:
the splitter was 1 of 3 proposed scenarios.
please, re-read the first post.
it@mikrotik:
I would not recommend anyone use 4 radio cards within the same enclosure, let alone on the same router (daughterboard or not).
We are not using splitter now. In my previous scenario it was. Now RB532, RB502(daughter board) and R52 wlan card.it@mikrotik is currently using the splitter...
我认为使用不同的扇区天线,可以see that your omni antenna and cables are good because when you hook your wireless card and cables up to the Omni antenna performence is great, but once you hook it up to the sector it sucks butt... To me atleast that seems like bad sector antenna..... Or SOME how SOME way that r52 dosent like those sectors and you could try using an Sr2 or an Xr version card...... I highly dought this but you NEVER know with wireless... best bet is to buy a different brand (Goood) brand of say 1 sector and give it a shot it it is just as bad send the sector back it isnt your sectors..... Good luck....Hi Jordantrx,
We have tried with new R52 wlan cards. and have same problem. Check the cables and connecters by connecting one omni. works fine. when we connected the sectors using the splitter, the signal strength on clients side within 500Mtrs from the tower was -87 after removing the splitter, connecting to individual wlan card, the strength is around the same figure(-85 to -87). What it could be????
Yes avoid the daughter card for this con fig.tgrand,jwcn:
the splitter was 1 of 3 proposed scenarios.
please, re-read the first post.
it@mikrotik:
I would not recommend anyone use 4 radio cards within the same enclosure, let alone on the same router (daughterboard or not).
Currently we have RB532 and RB502(daughter board) only. According to you, can we try 2 wlan using one RB532 and another 2 wlan using second RB532 instead of RB502(daughter board)?
Check the client's config. Might be something there. I have -85 1500m from a r52+12db omni, on about the same level ( altitude), with a rb133+r52+rubber antenna (the ones for interior use)Hi Jordantrx,
We have tried with new R52 wlan cards. and have same problem. Check the cables and connecters by connecting one omni. works fine. when we connected the sectors using the splitter, the signal strength on clients side within 500Mtrs from the tower was -87 after removing the splitter, connecting to individual wlan card, the strength is around the same figure(-85 to -87). What it could be????
Yes all the antennas are on right polarisation为了确保……你的行业都是一样的larization as your omni, right? I skimmed through the posts again and didn't see if it was specified.
Joe
Yes, a really interesting post.But please make it clear that make and specs of the sector antenna u r using. I haven't worked with SR series of cards. Can you please compare SR cards with R52 cards. The way and idea you implemented is a good one. I am sorry to say that I dont have experience using the filters. Now I want to make sure that the sector antenna with us is propagating the signal properly. One of the antenna is in ground. How can I check it effectively? Thanks in advance:)We have 8 sites all using sector approach.
Each tower uses 3 RB532A with a SR5 and a SR9. When sectoring you MUST get good vertical seperation on the tower with antennas in the same frequency range. I separate my antenna's at least 4-5 feet to avoid self interferance. ( If you use a combination of vertical and horizontal antennas you can lessen the physical spacing if required). With the SR9 we get a maximum of 7Kms NLOS. Sr5... upto 12-15km LOS in a PTMP environment. We use 5Mhz channel spacing on the SR9 but beware... the SR9 will interfere significantly each other in a sectored approach unless you get really good filters. The Ubiquity filters are good and give you the ability to switch channels if needed, but if you are in a noisy area you can buy filters like DCI which you can get custom tuned for a channel @ 5.5MHZ channel spacing. (Drawback is, you can't switch frequencies)
Using a splitter is a very bad idea!
The advantage to sectoring:
1. Less clients per RB therefore better performance
2. More avalable radio time slots / better performance
3. (3 sectors).. if you have a single sector failure only 1 third of your clients on that site are down (You can move nearby clients to the other sectors therefore even fewer clients are down) ... with an omni.. everyone is down.
4. Main advantage... MORE CUSTOMERS PER SITE = MORE $$ / month
Hope this helps!
You should see my tower heh heh... Looked like A C without any guyid wires last windy strom....I'd love to see the bottom of thatHow high is this tower? that looks like 1 inch or 1.5 inch galvanized tubing from a chainlink fencehey it works, but how is that in the wind, does it vibrate/shake?
My kind of setup lol.The antennas is Steeladoradus 15 db 2,4 ghz 90 Degree...
And that picture is on a silo, but we use the same setup on towers that are 40 meter but the big tube is 2 inch and the smal is 1,5 inch ... and yes i think it moves in the wind, but hey it have ben working now for 3,5 years! without failures....
and it serv 40 customers..
//Rickard
Well, actually only "it looks like".Looks like a yagi antenna. They are sometimes used when proper sector antennas are not in the budget
Thank you for informing, i always wondered how those worked... -Jordan一件事,以避免成本”全向sector" antennas, eg 3 sectors in an omnidirectional antenna package (one antenna). We made this mistake with the Pacific Wireless sectorized omnidirectional antenna, and performance is terrible. Sector-to-sector isolation is pathetic, even with low power there is significant interference in the other sectors when one is transmitting, even on opposite ends of the frequency. If I max out my downstream, clients on the other side of the antenna on a separate sector on a different frequency almost lose connectivity completely, it's so bad. Costly mistake.
Rick, I like your design and am looking at adopting it for a site I need to convert from omni to sector. Could you please tell me:Hi Mperdue
This is how we do it on 25 towers. If we have 4 sectors 90 Degree we keep them apart for 1 meter, we have this setup in the top of each tower that we own.
And we use always 1 routerbord with 1 R52 card in it for each antenna.
so we dont have anny problems with inteference at all.
//Rickard
Would it be possible to get all of the dimensions? I would like to build one of these.Hi nick.
Check this version
Its made of Stainless steel and it light weight and werry strong.it have survive a hurricane
The other version is made of standard parabolic pipes. 50 mm 2.5 mm thick.
and its velded togheter. and it light weight. the antennas are Stella doradushttp://www.stelladoradus.com/pdfs/2.4Ba ... 03-06).pdf
I think it will survive your wind load
The reson for mee to build like this is to get so low inteferens as possible.
The nocie value is always -95 to -103 on 2,4 Ghz band.
//Rickard