Unverified90% confidenceDecision RuleTime unknown
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
1
Sources
90%
Confidence
Long-term
Relevance
-
First Seen
Sources
Related Entities
Related Claims
Cite This Claim
Stable URI
https://kongchang.com/claim/150400API
curl https://kongchang.com/api/v1/knowledge/claims/150400MCP
get_claim(id=150400)