8-47F5 A
On a vessel with two RADARs, one has a different range indication on a specific target than the other. How would you determine which RADAR is incorrect?
A. Check the sweep and timing circuits of both indicators for correct readings.
B. Triangulate target using the GPS and visual bearings.
C. Check antenna parallax.
D. Use the average of the two indications and adjust both for that amount.
