What is the primary purpose of the elevation hand-crank?

The primary purpose of the elevation hand-crank is to adjust the position of the antenna, specifically for the purpose of erecting and lowering it. This function is crucial for ensuring that the radar system is oriented correctly to detect and track aerial threats effectively. Adjusting the elevation helps to optimize the radar’s coverage area and improve target acquisition capabilities.

Proper alignment of the antenna allows the radar to scan the desired airspace at the correct angle, which is vital for effective air defense operations. Therefore, being able to raise or lower the antenna using the hand-crank directly contributes to the radar's overall functionality and operational readiness.