Operations
PERMANENT ECHO
At a glance
Meaning of PERMANENT ECHO
Radar signals reflected from fixed objects on the earth's surface; e.g., buildings, towers, terrain.
More about PERMANENT ECHO
Radar signals reflected from fixed objects on the earth's surface; e.g., buildings, towers, terrain. Permanent echoes are distinguished from “ground clutter” by being definable locations rather than large areas. Under certain conditions they may be used to check radar alignment.