What is the degree of error with Rescue 21 direction finding equipment?

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Multiple Choice

What is the degree of error with Rescue 21 direction finding equipment?

Explanation:
Bearings from Rescue 21 direction finding have a defined uncertainty range. The system is specified to be accurate within plus or minus two degrees, which means the true bearing lies within 2 degrees on either side of the reported value. The “total of four degrees” describes that full width of angular uncertainty around the bearing. In practice, you use this knowledge when plotting positions: take multiple bearings from different DF sites and use intersection to refine the search area, accounting for the 2-degree error on each bearing.

Bearings from Rescue 21 direction finding have a defined uncertainty range. The system is specified to be accurate within plus or minus two degrees, which means the true bearing lies within 2 degrees on either side of the reported value. The “total of four degrees” describes that full width of angular uncertainty around the bearing. In practice, you use this knowledge when plotting positions: take multiple bearings from different DF sites and use intersection to refine the search area, accounting for the 2-degree error on each bearing.

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