[MR58-1] (R1) <---> (R1) [MR58-2]
[MR66-1] (R2) <---> (R2) [MR66-2]
Sometimes, more than 1 hop is necessary to reach a the gateway AP. In this instance a middle repeater MR58 is in between relaying the signal to repeat to the endpoints:
[MR58-GW] (R1) <---> (R1) [MR58-2] (R2) <---> (R2) [MR58-3]
In this case, MR58-GW is using R1 on 5.2GHz to communicate with MR58-2 using R1 on 5.2GHz and MR58-2 is using R2 on 5.8 GHz to communicate with MR58-3 who is also using R2 at 5.8GHz.
Note: The MR58 is usable in the EU, and the frequencies chosen under the ETSI regulations are different. Two frequencies at the opposing ends of the 5.4 - 5.7 GHz block will be used, not the 5.2 and 5.8 GHz used in the USA.