>I agree with Kurt. EPMP and ubnt have a place and work ok but I've been doing >this for 12 years and the only equipment that works for voip, vpn, gaming, >reliability, and just dam works is cambium 100 to 450. And as for mimosa and AC hardware, i hope they have a great product but unless it can do what 450 can do for reliable links it has no place in my network. Every ubnt wisp that has popped up in my service area has either quit or pulled out of my area.
In most cases the gear is not the main problem. Many UBNT users do not know the word "frequency planning". You are able to build good workin networks with wifi based gear if you plan and deploy carefully. Software based TDMA Protocols do not scale very good so Users/Sector should stay below 30 to give good quality. We use additional directional Antennas to offload sectors. Adding 3,5GHz to offload weak 5GHz clients is another tool to keep things going. Wifi is developing very fast and is cheap due to it's usage so it will beat legacy solutions on the long run. You'll get a Mimosa Sector for under 1K and I am sure it will outperform a 450. This is due to Mimosa can use the development done for the Wifi-Chipset which is used in a lot more APs than all WISPs of the world can buy. e.g. MuMIMO will be standard with .ac. We delivered 50M Up/Down with 11n to paying customers long before the 450SM was able to deliver this speeds. We install B5s at the moment and replace Mikrotik 11n with 11ac with nearly no cost (just replace the board). Where spectrum is a problem we use ePMP to add capacity to a tower using 40MHz ABAB and move backhaul to licensed. Using wifi based gear we've an upgrade path to Mimosa/ePMP-AC/UBNT AC whoever makes the better gear.
