Goto Section: 73.1670 | 73.1680 | Table of Contents
FCC 73.1675
Revised as of October 2, 2015
Goto Year:2014 |
2016
§ 73.1675 Auxiliary antennas.
(a)(1) An auxiliary antenna is one that is permanently installed and
available for use when the main antenna is out of service for repairs or
replacement. An auxiliary antenna may be located at the same transmitter
site as the station's main antenna or at a separate site. The service
contour of the auxiliary antenna may not extend beyond the following
corresponding contour for the main facility:
(i) AM stations: The 0.5 mV/m field strength contours.
(ii) FM stations: The 1.0 mV/m field strength contours.
(iii) TV stations: The Grade B coverage contours.
(iv) Class A TV stations: The protected contours defined in § 73.6010.
(2) An application for an auxiliary antenna for an AM station filed pursuant
to paragraphs (b) or (c) of this section must contain a map showing the 0.5
mV/m field strength contours of both the main and auxiliary facilities.
(b) An application for a construction permit to install a new auxiliary
antenna, or to make changes in an existing auxiliary antenna for which prior
FCC authorization is required (see § 73.1690), must be filed on FCC Form 301
(FCC Form 340 for noncommercial educational stations).
(c)(1) Where an FM, TV or Class A TV licensee proposes to use a formerly
licensed main facility as an auxiliary facility, or proposes to modify a
presently authorized auxiliary facility, and no changes in the height of the
antenna radiation center are required in excess of the limits in
§ 73.1690(c)(1), the FM, TV or Class A TV licensee may apply for the proposed
auxiliary facility by filing a modification of license application. The
modified auxiliary facility must operate on the same channel as the licensed
main facility. An exhibit must be provided with this license application to
demonstrate compliance with § 73.1675(a). All FM, TV and Class A TV licensees
may request a decrease from the authorized facility's ERP in the license
application. An FM, TV or Class A TV licensee may also increase the ERP of
the auxiliary facility in a license modification application, provided the
application contains an analysis demonstrating compliance with the
Commission's radiofrequency radiation guidelines, and an analysis showing
that the auxiliary facility will comply with § 73.1675(a). Where an FM, TV,
or Class A TV licensee or permittee proposes to mount an auxiliary facility
on an AM tower, it must also demonstrate compliance with § 1.30003 in the
license application.
(2) Where an AM licensee proposes to use a former licensed main facility as
an auxiliary facility with an ERP less than or equal to the ERP specified on
the former main license, the AM station may apply to license the proposed
auxiliary facility by filing a modification of license application on Form
302-AM. The proposed auxiliary facilities must have been previously licensed
on the same frequency as the present main facility. The license application
must contain an exhibit to demonstrate compliance with § 73.1675(a).
[ 43 FR 53741 , Nov. 17, 1978, as amended at 44 FR 22740 , Apr. 17, 1979; 45 FR 26066 , Apr. 17, 1980; 50 FR 13974 , Apr. 9, 1985; 62 FR 51060 , Sept. 30,
1997; 63 FR 70049 , Dec. 18, 1998; 65 FR 30005 , May 10, 2000; 78 FR 66298 ,
Nov. 5, 2013]
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Goto Section: 73.1670 | 73.1680
Goto Year: 2014 |
2016
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