---
title: "Set or clear signal"
method: POST
path: "/signal"
tags: ["Signal"]
---

# Set or clear signal

`POST /signal`

## Request body

- SignalBody
  - `signal` string, nullable — e.g. `"100"`, or `null` to clear
  - `originCallsign` string

## Response `200`

Signal updated

- object

## Other responses

- `400` — Bad input / ER:LC not configured / civilian disabled
- `401` — Missing or invalid key
- `403` — Insufficient scope or cross-panel serverId

---

[API](https://skmtc.dev/anchr/apis/anchor-open-developer-api.md) · [All operations](https://skmtc.dev/anchr/apis/anchor-open-developer-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/anchr/anchor-open-developer-api/revisions/3a14d4cb4985/schema)