What is the big deal with GPS AirSync?

RouterOS Wireless Networking
1

I search a lot of urls about GPS AirSync -thats how ubnt call but what is the big deal
How can I understand every unit on the same tower is using GPS for synchronization when to transmit and receive - simple
but why need GPS if I have 5 or 10 units on 1 tower and all are LAN connected (like in the same switch) why they cant synchronize
using that how do I call local-LAN whats the big catch with GPS?

2

GPS are reliable and accurate time sources.

Rather than make a new thread you may want to just search the forums for ‘GPS’ and read all the past threads that discuss this in great detail.

3

There are some systems such as Canopy that do in fact use timing over ethernet to a common site. Look up Motorola CMM for example. I am not aware of any other manufacturer syncing over ethernet at the moment. FWIW, Alvarion supports a 1pps clock across their Wimax base stations, and a few others do similar configurations.