### Question
What does grade B contour mean?


### Answer
**Grade B contour** has the following meaning in *47 U.S.C. § 522*:

> the field strength of a television broadcast station computed in accordance with regulations promulgated by the Commission

#### Citation:
  - *47 U.S.C. § 522*
  - Heading: **CHAPTER 4-RADIO ACT OF 1927 > SUBCHAPTER V&ndash;A-CABLE COMMUNICATIONS > Part I-General Provisions**

