---
title: "INTERROGATOR — aviation glossary — OnlyPlanes"
description: "The ground‐based surveillance radar beacon transmitter‐receiver, which normally scans in synchronism with a primary radar, transmitting discrete radio signals which repetitiously request all transponders on the mode being used to reply."
canonical_url: "https://onlyplanes.ru/en/learn/interrogator"
locale: en
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  "og:description": "The ground‐based surveillance radar beacon transmitter‐receiver, which normally scans in synchronism with a primary radar, transmitting discrete radio signals which repetitiously request all transponders on the mode being used to reply."
  "og:image": "https://onlyplanes.ru/images/aviation/aircraft/boeing-787.webp"
  "og:title": "INTERROGATOR — aviation glossary"
---

> Index of every page on this site: [llms.txt](https://onlyplanes.ru/llms.txt)

Operations

# INTERROGATOR

INTRG

TERM · Operations

At a glance

## Meaning of INTERROGATOR

The ground‐based surveillance radar beacon transmitter‐receiver, which normally scans in synchronism with a primary radar, transmitting discrete radio signals which repetitiously request all transponders on the mode being used to reply.

### More about INTERROGATOR

The ground‐based surveillance radar beacon transmitter‐receiver, which normally scans in synchronism with a primary radar, transmitting discrete radio signals which repetitiously request all transponders on the mode being used to reply. The replies received are mixed with the primary radar returns and displayed on the same plan position indicator (radar scope). Also, applied to the airborne element of the TACAN/DME system.

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