Unverified90% confidenceDecision RuleTime unknown
选择内置GPS/GNSS的EPIRB，定位精度可达约100米以内；仅依靠406MHz多普勒定位的机型误差达2-5公里，救援耗时显著增加
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90%
Confidence
Long-term
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Related Claims
Unverified内置GPS（GNSS）定位的EPIRB可将搜救定位精度从卫星多普勒的约2-5公里缩小至100米内，显著缩短救援时间，远洋应选内置GPS机型89% similarUnverified内置GPS/GNSS定位结合406MHz+121.5MHz+AIS三频发射，搜救定位精度和被发现概率高于仅有406MHz的老款EPIRB84% similarUnverified内置GPS使卫星定位精度可达约100米以内，相比不带GPS的旧式EPIRB（定位精度数公里）有显著优势，是目前EPIRB的主流配置84% similarUnverified选择内置GPS/GNSS的406MHz设备可将定位精度从卫星测算的约5km缩小到约100m，显著缩短救援时间，无GPS机型仅依赖多普勒定位83% similar
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