Second-trip echo

{
  "id": "MLC-T-MET-008750",
  "term": "Second-trip echo",
  "field": "Meteorology and atmospheric science",
  "definition": "A radar echo that originates from a target located beyond the maximum unambiguous range of the radar, but is detected during a subsequent pulse repetition interval. The radar incorrectly interprets the echo's arrival time, causing it to appear at a closer, incorrect range on the display. This phenomenon can be mitigated by varying the pulse repetition frequency.",
  "see_also": [
    "maximum unambiguous range"
  ],
  "url": "https://mlchart.com/terminology/meteorology/second-trip-echo/"
}