🔍 Key Concepts

• Behavior of antenna systems during and after initialization • Role of elevation (EL) and azimuth (AZ) step motors in stabilizing the antenna • Components that control platform motion versus heading/gyro information

💭 Think About

• Ask yourself: when an antenna moves slowly up and down (creeps vertically) after startup, which axis of motion is involved? • Which component actually senses or controls that up‑down motion of the antenna, and which components only affect heading or horizontal rotation? • If the antenna successfully initializes but then cannot hold a stable vertical angle, which type of motor or sensor would most logically be at fault?

✅ Before You Answer

• Identify whether the symptom described is an elevation (pitch/up‑down) problem or an azimuth (heading/left‑right) problem • Distinguish between devices that measure the platform’s attitude versus those that repeat gyro heading only • Confirm whether the described troubleshooting step (checking motor stiffness with power off) logically matches the axis where the problem is observed