Unverified90% confidenceDecision RuleTime unknown
购买前需确认VHF天线配置：AIS 800需要独立的VHF天线或使用天线分配器与现有VHF共用天线，直接共用而不加分配器会影响VHF通信
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90%
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Long-term
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Unverified需要共享或独立VHF天线；若共用VHF天线需加装分路器，购买前应确认天线和分路器的兼容方案，否则可能影响VHF通讯或AIS发射性能83% similarUnverifiedAIS收发器必须独立VHF天线或通过天线分配器（Splitter）与VHF电台共用，直接与VHF共接一根天线会导致AIS发射时无法工作，共用需选带优先切换功能的有源分配器82% similarUnverified需要连接外置VHF天线才能正常工作，购买前应确认船上是否有专用AIS天线或可共用的VHF天线及分路器82% similarUnverified只需一根VHF天线即可同时服务VHF通信和AIS收发，大幅简化布线和天线安装，但共用天线意味着无法获得独立AIS天线方案的接收冗余优势79% similarUnverified内置VHF天线分离器是核心卖点，可让AIS与VHF共用一根天线，减少安装复杂度和甲板上额外天线，但共用天线会在VHF发射时短暂中断AIS接收75% similar
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