# 4-1. 訊號測試

![](https://2876750536-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-Mgo6kXvCmKwfYN2pbrg%2F-MkHjIzxuEK82HAf6yy0%2F-MkHk0Rd1BvbsRdynZWZ%2F4-1.jpg?alt=media\&token=bb80275b-6d12-4ae7-9f7c-e01d7926189c)
