98 Network Design and Engineering Guide 2010-10-26Outdoor Unit and Satellite Link DesignSkyWAN® Link Budget Calculation ToolUpLink Area 2 (ULA2)Finally the slave stations in ULA2 use carrier 2 for the primary reception channel. Any stationwhich wants to communicate directly to other ULA2 stations must also have a second receptionchannel on carrier 4. In this example all the stations in America are equipped for this mesh com-munication within ULA2.Figure 3-28 MRB DUB Network - ULA2 StationsCarrier TopologyThe definition of the carrier parameter topology in the summary sheet has to be done in thefollowing way:- Carrier 1: Mesh in ULA1- Carrier 2: ULA2 -> ULA1 All- Carrier 3: ULA1 All -> ULA2- Carrier 4: ULA2 -> ULA2Note that modem data rate, modulation and coding on carrier 1 and 2 must be identical. Forthe other carriers these parameters can be set individually. The topology option ULA1Hub ->ULA2 and ULA2 -> ULA1Hub can only be used if there is only one master station (no backupmaster) in the network.Figure 3-29 MRB DUB Network - Summary Topology
