Unverified92% confidenceDecision RuleTime unknown

发射功率6W是手持VHF的上限水平，但与固定台25W相比通信距离仍有明显差距，不能替代固定台作为远洋主力通信设备

1

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92%

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Long-term

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Related Entities

Standard Horizon HX890 手持VHFproduct_sku VHF无线电GPScategory

Related Claims

Unverified固定台VHF发射功率标准为25W（高功率）/1W（低功率）可切换，通信距离受天线高度主导而非功率；手持机通常最高5W/6W，平地通信仅5-8海里，遇险覆盖有限86% similar Unverified发射功率越高覆盖越远但耗电越快:6W手持在高功率下续航常仅为1W档的1/3;远距离通讯时才切6W,日常船内/近距离沟通用1W既省电又减少频道干扰81% similar Unverified功率越大（固定式25W）通话距离越远但耗电大且需外接电源和固定天线，安装复杂；手持式便携、可离船但5W功率距离短，两者应互补配置而非二选一78% similar

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