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Old 01-01-2019, 12:35 PM   #176
DDW
Guru
 
City: San Francisco
Join Date: Apr 2018
Posts: 3,094
Radar may not tell lies (or rarely), but may not tell the whole truth either. The old adage, "never depend on a single source of navigational data" applies as well to radar.

In poor visibility I'll have raster charts (paper copy), vector charts, GPS position, AIS, radar, and eyeballs all running. Where they all agree I'm pretty comfortable. The more interesting situations are when they don't agree.
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