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Hello I am looking for some advice on a wireless premises upgrade.





A) Has a 100Mbps Internet connection with a modem/router which has a POE cable running to (B)
B) Currently has this device http://tinyurl.com/lm6m7xh on the roof of (B) 3 meters high pointing at (C)
C) is the building that mobile phone and laptops will be used by 10-100 clients and is a 3 story high brick building with rooms opening/facing towards (B)
D) is the rear perimeter of the premises and is 60.34 meters from the current wireless base station on (B)

The current setup with the old base station in the link above is working but seems very limited both in bandwidth and signal.
Connecting to the old base station using WPA2 yields around 11Mbps at the "back of the building" on the diagram where 1-7 is located.

From my limited knowledge I am wondering if someone could tell me if this is the correct equipment to replace the old base station on (B) with (I would like to use 2.4Ghz radio for compatability)
1) 2.4GHz 300Mbps Outdoor Wireless Base Station (WBS210)
2) 2.4G 15dBi 2x2 MIMO Sector Antenna (TL-ANT2415MS)

If this is the correct equipment could I expect better performance here for speeds and coverage with the new setup within the 60meter zone and to both end of the building 1-7?
Do I need CPE's for the initial setup or can they be added at a later date?
I am guessing the above equipment can be used stand alone to provide wifi to the premises clients devices best utilising the 100mbps Internet connection?
One of my fears is the price on the old base station it seems significantly higher than the proposed new equipment?

Thank you in advance to anyone who can help shed some light on this for me.