Class A TV station protected contour.

(a)-(b) [Reserved] (c) A Class A TV station will be protected from interference within the following predicted signal contours: (1) 43 dBu for stations on Channels 2 through 6; (2) 48 dBu for stations on Channels 7 through 13; and (3) 51 dBu for stations on Channels 14 through 36. (d) The Class A TV station protected contour is calculated from the effective radiated power and antenna height above average terrain, using the F(50,90) signal propagation method specified in § 73.619(b)(1). (e) A digital Class A DTS station will be protected from interference within its Class A DTS protected area as defined by § 73.6023(d). [86 FR 66213, Nov. 22, 2021, as amended at 86 FR 21227, Apr. 22, 2021; 89 FR 7263, Feb. 1, 2024]