HamWAN founder here. The protocol is this: https://wiki.mikrotik.com/wiki/Manual:Nv2 https://wiki.mikrotik.com/wiki/Manual:Nv2 And the sectorized spectrum pl

HamWAN founder here. The protocol is this: https://wiki.mikrotik.com/wiki/Manual:Nv2 https://wiki.mikrotik.com/wiki/Manual:Nv2 And the sectorized spectrum plan is this: http://hamwan.org/Standards/Radio%20Frequency%20Engineering/Spectrum%20Allocation.html http://hamwan.org/Standards/Radio%20Frequency%20Engineering/... When choosing a protocol for cheap long-range point-to-multipoint microwave, I wanted something that was TDMA'd and not CSMA'd like 802.11. That left me with WiMAX/airMAX/NV2 to choose from. WiMAX gear was overpriced, Ubiquiti's airMAX gear was very basic, and Mikrotik's NV2 was just right. Their $100 modems could run VRRP+OSPF+BGP+MPLS out of the box, offered more RF power than the competition, and could operate in the amateur part of the spectrum. HamWAN launched with 1.3W "Metal 5SHPn" modems on the air. The speed advantage we get from these choices is not blocking on carrier sense, avoiding hidden-node collisions/retransmits, and operating in clean (high SNR) spectrum that allows for higher order modulations.