Which device is required to determine the AMG vehicle heading?

• A. GPS Receiver
• B. Lensatic Compass
• C. Digital Compass
• D. Sextant

Answer: (B)

Determining a vehicle’s heading in the field is best done with a rugged, non-electronic tool that lets you take a precise magnetic bearing. A lensatic compass is designed exactly for this purpose: you sight along the line toward a reference point or along the vehicle’s intended direction, and read the azimuth on the compass dial with a built-in lens for accuracy. It works reliably without power and isn’t dependent on signals, which is essential in many operational environments.

GPS receivers can provide heading if you have satellite visibility, but signal can be lost or jammed, making it less dependable in some situations. A digital compass is convenient but relies on batteries and electronics, which can fail or be affected by interference. A sextant measures angles to celestial bodies and isn’t used for establishing ground headings like this. So the lensatic compass is the appropriate device for determining AMG vehicle heading.