50 clients is more like maximum due to air time availability. If all the clients are very close you can squeeze in a lot of clients because they all will have fast connections. If you have clients further away connected at 1 to 6 Mbps they will eat all the air time. Your 3Mbps requirement is modest, though. It all depends on the client connection speeds and requirements. If you want to analyze it use the Revolution Wi-Fi Capacity planner at http://www.revolutionwifi.net/capacity-planner/
As for the MikroTik devices I have found hAP AC to be quite capable. It has good radios and routing performance. You hint at sector APs so are you deploying this outdoors? It really would help to know more about the intended use.
You are not helping much. I already guessed it was outdoors.
What kind of deployment? It is a totally different matter to serve 300 people scattered around a park than 300 people packed in front of a concert stage. How much freedom do you have in AP placement? How are going to supply power? What kind of network do you have? How are you going to distribute network to the APs?
You wrote about sector APs in a tower. With 60° sector antennas you could place six APs in the same tower, which could serve the 300 clients from a single point - if the clients are distributed evenly around the tower and reasonably close. How about two or three towers with three 120° sectors each? How about sector antennas around the perimeter aimed in towards the users?
client to tower is LOS our coverage about 3km maximum, out tower located in residential.
we using mikrotik ccr as router we have 2 ccr for this, one for core router second for distribution.
we planning using 3 sectors in single tower because our client in one residential.
each sector using AP RB 800 and mini pci R52HN and power using poe distribution and we have UPS for this.
is this possible using RB 800 to handle it or any better radio for this ..?
Are we talking about a WISP setup here? (Again it is me guessing..)
I have no experience with running a WISP, so I’ll step aside then. My advice concerned providing Wi-Fi service to client devices directly.
It would have saved my time and you would get better responses if you’d given some background information. If it is secret then you need to hire a consultant under an NDA.
mbfound thanks for reply yes we want to cover 360 degree and i think using 3 sector 2.4Ghz and 3 sector 5Ghz and total we have 6 sector.
you have some advice what best sector antennas for this..?
They come in 2.4Ghz and 5Ghz (The adjustable Titanium range). You can run them with a Netbox5 for the 5Ghz sectors and a Basebox2 for the 2.4Ghz sectors.
I would avoid the RB800 and go for a modular approach to save some future headache but even that would work with a daughterboard and a few wireless cards.
Have a look at the top sectors, the basebox/netboxes will just act as the AP/sector and the routing/pppoe server will sit on another device (RB3011 in this case).
i refer to the model of one CPU with many radios, that was valid an very popular decades ago but not today
nowadays designs have migrated for single Radio per equipment to improve performance and isolate radios between them, preventing self interference
finally rb800 gets you an expensive less performance solution than separated equipment:
for example you get a rb800 and every thing you need to get 4 radios operative with 19dbi 120° antennas you spend close to 1.200 US
instead of that you get 4 mantbox with the same antenna plus a powerbox pro to power it in group you spend only 900 bucks and get best performing solution without the hassle of managing pigtails from radios to antennas
The Mantbox 19s is a cheap and good performing solution, but it is not a good solution overall. As a wireless engineer you should cherish and preserve spectrum by using best possible basestations. Cheap antennas will pollute big chunks of spectrum for miles so it’s akin to shooting oneself in the foot!
I wish more people would think like you, good shielded antennas with only as much degrees as need and adjusting output power as low as possible instead of just blasting everything on max.