---
title: "Terminal Secondary Radar Service — aviation glossary — OnlyPlanes"
description: "TSEC stands for Terminal Secondary Radar Service in FAA terminology."
canonical_url: "https://onlyplanes.ru/en/learn/terminal-secondary-radar-service"
locale: en
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  "og:title": "Terminal Secondary Radar Service — aviation glossary"
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> Index of every page on this site: [llms.txt](https://onlyplanes.ru/llms.txt)

Aviation abbreviation

# Terminal Secondary Radar Service

TSEC

ABBR · Radio communications and ATC

At a glance

## Meaning of Terminal Secondary Radar Service

TSEC stands for Terminal Secondary Radar Service in FAA terminology.

### More about Terminal Secondary Radar Service

This abbreviation is used in radio communications and air traffic control. The English reference lists Terminal Secondary Radar Service with the abbreviation TSEC.

FAA abbreviations reflect US aviation usage. Their meaning and permitted use can differ in documents from other countries.

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