It's the real thing. A radio signal from another world.
6 seconds sound clip from the Independence Day (1996) movie soundboard.
You can hear this line at 00:03:28 in the Blu-ray version of the movie.
Quote context
[...]
- Come on, baby, come on, baby, come on!
- This better not be another damn Russian spy job!
- Boys at air traffic say the skies are clear.
- It's the real thing. A radio signal from another world.
- Let's not jump the gun here.
- Get online with Space Command. They're gonna want to know about...
- What's with the golf balls? You're gonna kill me here!
[...]