Hello All,
I have a routerboard Rb33 with 3 mini PCI wireless Cards ..
I also have R52H as ap bridge on TURBO MODE ..
For each customer has DLINK client cnnected to our station but we only have 66 access point clients , but I noticed something that everytime we add another client then our power will decrease so should I put 24dB antennas to each customer ( max distance is 2km ) ..
I only asks if this card (R52H) works with 100 AP clients ..
Card can work with 2007 clients [theoretically], but in real networks for good quality it is recommended to have 25-40.
Because in ideal conditions you can get 30-35 Mbps half-duplex, divide it to 100 clients [each client won’t get too much bandwidth].
It make sense to use NStreme if you want to connect so much customer to an AP in an outdoor PtMP installation, so you would not run into the “Hidden Station Problem” which kill lot of 802.11 traffic.
A CPE on RB/411 base is also very cheap and have support for all the stuff a WISP need.
Regards
Lutz
Thanks for your information but I want to ask more questions concerning this thread ..
If we had 60 access point clients (DLINK) connected to my base station which is “ap bridge”
and as you know I am broadcasting on 108g TURBO and DLINK supports only 1 channel turbo ( VERY STRANGE on 2.3 GHZ 2312) .. I didnt mention that I moved to TURBo because we had too much of interference on 2.4 ghz or 2.3 ghz // bandwidth cant be reached even at 1 Mbps .
Finally I got the solution back on TURBO .. now I can reach up to 12 Mbps download through turbo .. I got RB333 with R52h 350mW ) but my clients are using DLINK which is 64mW . ,distance for each customer ranges from 100meters to 2 Kilo Meters max ..
If you said that nstreme can work with us then I can move to NSTREME DUAL .. how much we can get speed for each customer if we had 100 access point client and how much power we need to serve more than 2 km if needed and can you show me how do you calculate to get how much distance we need if we had power or antennas .. etc
If we set it to nstreme dual what antennas do we want and for sure you mean that I have to put 2 antennas to each customer then they have to pay more.
By the way in lebanon we buy Rb411 small one as 92 $ which is not good …you also have to pay for R52 card …etc
any solution ?
in my opinion, there are no defined limit for number of wireless customers. BUT… in a perfect world. in real situation - we have never seen more than 20 good working customers at one iface attached.
/interface wireless> print advanced
max-station-count=2007
As I wrote before, we have 50+ customer at one AP wlan interface, using NStreme.
It’s a mix with some custmer which get less bandwith and some which get more. Also a mix between business customer (working all over the day) and private customer (working more in the evening). But all CPEs are always on, connected and the link can be used. That works since years.
Regards
Lutz
Of course I got you but you didnt answer my question 
I only ask if I want to change to NSTREME then I should Replace all DLINK clients with Rb411 and I didnt try to work on nstreme so this is my first time that I test nstreme so can we use nstreme on one card wlan and one antenna for client and for station too ?
I hope you can get my idea !
Yes you can. NStreme is Mikrotiks proprietary protocol (polling mechanism instead of 802.11 CSMA/CA with ACK).
You must replace your clients to MT based clients.
Regards
Lutz
why you insist that nstreme shuld be present
Because 802.11 (without any letter) isn’t designed for large outdort PtMP installations with lots of ‘hidden stations’.
This is why a polling protocol is much more effective here.
Regards
Lutz
therefore, if we looking for а good p2mp network, 1-2km radius arround ap, we have to take heed to keep several simple rules:
-all station/clients must be MT /it’s 'cause we need nstreme/
-we need good signal levels, i.e. los, 15dB+ flat pannel antennas /more of dBs is better, but to transfer good amount of traffic we need G/. If NLOS, big dishes or more aps, but good sugnal levels
-2,4GHz-Onlyg on all stations
-Nstreme on all network devices
Now, what about polling settings?
We use dynamic size/4000, better results in transferring мore traffic.
How many stations can receive 2-3Mbps at the same time/simultaneously
FYI: With nstreme, MikroTik recommends 30-50 clients max. More than that and ping times will go way up due to the polling.
so you guys are saying that designing an outdoor network based on 802.11a would be a fault if we want to connect 40 customers per interface ?
My friend…i have a private network with 130+ klients…i used to work only with wireless connections but let me tell u something… START CABELING.
In the begining i found it hard to cable a village 3km x 2km …but now when i have cables all around it…i have to work on that network ONLY after BIG thunderstorms…
But if u r outside Bulgaria…maybe u won’t have to 
Take my advice…u have too much klients to use wireless…
In 2 years max u will need to deliver 10+ mbits to every one of them…what are u going to do then?
If u start cableing now…u can raise their speed without to worry about other wireless APs around u that interference…and so on.
make ur life easyer
C ya and good luck.
there are different considerations of the problem into the forum. the future of wireless - 802.11n or microwave for high bandwidth is quite different than number of wireless stations on an interface.
Nstreme is not “necessary” but it does improve things in certain situations. It doesn’t matter what technology you will use, but never go higher than 50 clients per AP - you will start to get problems no matter on what system. 100 is the practical maximum, but better keep it below that.
Thanks for your valuable information normis .. but Im afraid of our new customers
Everyday we are getting new customers ( new AP clients ) so Im afraid of adding about 500 customers then how can we solve our situation .. I assure to you that for only 1 sector 20dB 90 degrees can have about 500 customers .. what solution do we need to solve it ..
assuming we want to deliver maximum 2 Mbps connection ..
By the way , current 67 AP clients are getting about 12 Mbps for each user AP , of course 108g Mode ( TURBO ) .
Thats what I am asking for .. can we deliver more customer or we are forced to add new station to handle such users 500 ?
Regards,
Ghassan
do you mean 500 wireless devices direcly connected to the AP, or 500 customers behind some smaller number of wireless clients (ie. 10 Wireless Clients, 50 users behind each)?
I am talking only about wireless devices that are directly connected to the AP, only there is a limitation.