47 C.F.R. § 74.32
The following exclusion areas and coordination areas are established to minimize or avoid harmful interference to Federal Government earth stations receiving in the 17.7-19.7 GHz band:
(b) Any application for a new station license to provide MVPD operations in the 17.7-17.8 GHz band or to operate in the 17.8-19.7 GHz band for any service, or for modification of an existing station license in these bands which would change the frequency, power, emission, modulation, polarization, antenna height or directivity, or location of such a station, must be coordinated with the Federal Government by the Commission before an authorization will be issued, if the station or proposed station is located in whole or in part within any of the following areas:
(1) Denver, CO area:
(2) Washington, DC area:
(3) San Miguel, CA area:
(4) Guam area: Within 100 km of 13°35′ N., 144°51′ E.
Note to § 74.32: The coordinates cited in this section are specified in terms of the “North American Datum of 1983 (NAD 83).”
[80 FR 38908, July 7, 2015]