### Question
What does clutter mean?


### Answer
**Clutter** has the following meaning in *47 U.S.C. § 641*:

> a natural or man-made surface feature that affects the propagation of a signal from a base station

#### Citation:
  - *47 U.S.C. § 641*
  - Heading: **CHAPTER 5-WIRE OR RADIO COMMUNICATION > SUBCHAPTER VII-BROADBAND DATA**

