52.3. Equipment and Cable InstallationThe coax connector bracket beneath the radome is labeled. The functionalassignment of these labels is as follows:SDA-390 ConnectorsRF1: Connect to the multi-switch (Vertical Low).RF2: Connect to the multi-switch (Horizontal Low).RF3: Connect to the multi-switch (Vertical High).RF4/ACU: Connect to the ACU.NOTE: Unused coax connections (on the connector bracket) MUST be terminatedwith a 75ohm terminator.NOTE: We recommend the following cable types for cable lengths:-within 20m: RG6-within 50m: RG11-within 100m: LMR400-within 200m: LMR600NOTE: Impedance of cable is 75ohm. Also you can select the other cable types.You have to keep in mind that we recommend all attenuation of cable is under20dB at 2.5GHz.Figure 2-5 RF Connector Bracket