Unverified90% confidenceDecision RuleTime unknown
需要外接专用GPS天线和VHF天线，购买前需确认是否有额外天线安装空间以及VHF天线是否支持AIS频段分路或专用天线布局
1
Sources
90%
Confidence
Long-term
Relevance
-
First Seen
Sources
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Unverified需要外接GPS天线和VHF天线，购买前需确认是否有合适的天线安装位置以及VHF天线是否支持AIS频段分时共用或需要独立天线97% similarUnverified需要外接专用GPS天线和VHF天线，购买前需确认是否有合适的天线安装位置以及VHF天线是否可共用（需加分配器）或需单独配置AIS专用天线96% similarUnverified需要外接专用GPS天线和VHF天线，购买前需确认是否已有兼容的VHF天线或需另购AIS专用天线，与船上现有VHF天线共用需加装信号分离器93% similarUnverified内置GPS模块，无需额外购买外置GPS天线即可获取定位，但仍需单独安装VHF天线或AIS专用天线用于收发信号84% similarUnverified内置GPS与AIS接收共用VHF天线，安装简便只需一根天线，但AIS接收灵敏度和范围可能不如使用专用AIS天线的独立接收机79% similar
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