§  22.165   Additional transmitters for existing systems.

   A licensee may operate additional transmitters at additional locations
   on the same channel or channel block as its existing system without
   obtaining prior Commission approval provided:

   (a) International coordination. The locations and/or technical
   parameters of the additional transmitters are such that individual
   coordination of the channel assignment(s) with a foreign
   administration, under applicable international agreements and rules in
   this part, is not required.

   (b) Antenna structure registration. Certain antenna structures must be
   registered with the Commission prior to construction or alteration.
   Registration requirements are contained in part 17 of this chapter.

   (c) Environmental. The additional transmitters must not have a
   significant environmental effect as defined by § § 1.1301 through 1.1319
   of this chapter.

   (d) Paging and Radiotelephone Service. The provisions in this paragraph
   apply for stations in the Paging and Radiotelephone Service.

   (1) The interfering contours of the additional transmitter(s) must be
   totally encompassed by the composite interfering contour of the
   existing station (or stations under common control of the applicant) on
   the same channel, except that this limitation does not apply to
   nationwide network paging stations or in-building radiation systems.

   (2) [Reserved]

   (3) The additional transmitters must not operate on control channels in
   the 72-76 MHz, 470-512 MHz, 928 MHz, 932 MHz, 941 MHz or 959 MHz
   frequency ranges.

   (e) Cellular Radiotelephone Service. The service area boundaries (SABs)
   of the additional transmitters, as calculated by the method set forth
   in § 22.911(a), must not cause an expansion of the Cellular Geographic
   Service Area (CGSA), and must not extend outside the CGSA boundary into
   Unserved Area unless such extension is less than 130 contiguous square
   kilometers (50 contiguous square miles). The licensee must seek prior
   approval (using FCC Form 601) regarding any transmitters to be added
   under this section that would cause an expansion of the CGSA, or an SAB
   extension of 130 contiguous square kilometers (50 contiguous square
   miles) or more, into Unserved Area. See § § 22.912, 22.953.

   (f) Air-ground Radiotelephone Service. Ground stations may be added to
   Commercial Aviation air-ground systems at previously established ground
   station locations, pursuant to § 22.859, subject to compliance with the
   applicable technical rules. This section does not apply to General
   Aviation air-ground stations.

   (g) Rural Radiotelephone Service. A "service area" and "interfering
   contours" must be determined using the same method as for stations in
   the Paging and Radiotelephone Service. The service area and interfering
   contours so determined for the additional transmitter(s) must be
   totally encompassed by the similarly determined composite service area
   contour and predicted interfering contour, respectively, of the
   existing station on the same channel. This section does not apply to
   Basic Exchange Telecommunications Radio Systems.

   (h) Offshore Radiotelephone Service. This section does not apply to
   stations in the Offshore Radiotelephone Service.

   (i) Provision of information upon request. Upon request by the FCC,
   licensees must supply administrative or technical information
   concerning the additional transmitters. At the time transmitters are
   added pursuant to this section, licensees must make a record of the
   pertinent technical and administrative information so that such
   information is readily available. See § 22.303.

   [ 59 FR 59507 , Nov. 17, 1994;  59 FR 64856 , Dec. 16, 1994, as amended at
    62 FR 11629 , Mar. 12, 1997;  63 FR 68944 , Dec. 14, 1998;  64 FR 53240 ,
   Oct. 1, 1999;  67 FR 77190 , Dec. 17, 2002;  78 FR 25174 , Apr. 29, 2013;
    79 FR 72151 , Dec. 5, 2014]