Unverified85% confidenceFactTime unknown

内置GPS并通过406MHz上传坐标，配合121.5MHz归航信号，定位精度优于无GPS的老款PLB

1

Sources

85%

Confidence

Long-term

Relevance

-

First Seen

Sources

Related Entities

ACR ResQLink 400 PLBproduct_sku PLBcategory

Related Claims

Unverified内置GPS并通过406MHz上传经纬度，同时具备121.5MHz引导信标，属于成熟的双频求救方案87% similar Unverified内置GPS的EPIRB其GNSS定位会同时嵌入406MHz报文和121.5MHz归航信号，即使卫星未过顶也能立即传出精确坐标，比无GPS型号平均节省搜救定位时间数小时82% similar Unverified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80% similar

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