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Ensure RF cables are properly connected between the duplexer and RF
connectors.
TX signal:
Excitor module -> PA module -> Duplexer TX connector -> Duplexer antenna connector ->
RX/duplex antenna connector (rear panel)
RX signal:
RX/duplex antenna connector (rear panel) -> Duplexer antenna connector -> Duplexer RX
connector -> RX module
Diagrams of Assembled Unit
Duplexer Mounted with Front Side Facing Upwards