Goto Section: 90.421 | 90.425 | Table of Contents
FCC 90.423
Revised as of October 2, 2015
Goto Year:2014 |
2016
§ 90.423 Operation on board aircraft.
(a) Except as provided in paragraphs (b), (c), and (d) of this section, and
except as may be provided in other sections of this part with respect to
operation on specific frequencies, mobile stations first authorized after
September 14, 1973, under this part may be operated aboard aircraft for
air-to-mobile, air-to-base, air-to-air and air-to-ship communications
subject to the following:
(1) Operations are limited to aircraft that are regularly flown at altitudes
below 1.6 km (1 mi) above the earth's surface;
(2) Transmitters are to operate with an output power not to exceed ten
watts;
(3) Operations are secondary to land-based systems;
(4) Such other conditions, including additonal reductions of altitude and
power limitations, as may be required to minimize the interference potential
to land-based systems.
(b) Exceptions to the altitude and power limitations set forth in paragraph
(a) of this section may be authorized upon a showing of unusual operational
requirements which justify departure from those standards, provided that the
interference potential to regular land-based operations would not be
increased.
(c) Mobile operations aboard aircraft in the services governed by this part,
under licenses in effect September 14, 1973, may be continued without regard
to provisions of paragraph (a) of this section, as follows:
(1) Operations may be continued only for the balance of the term of such
licenses if aircraft involved are regularly flown at altitudes greater than
1.6 km (1 mi) above the earth's surface.
(2) Operations may be continued for one additional renewal license term if
the aircraft involved are regularly flown at altitudes below 1.6 km (1 mi)
above the earth's surface.
(d) Operation of radiolocation mobile stations may be authorized without
regard to limitations and conditions set forth in paragraphs (a), (b), and
(c) of this section.
[ 43 FR 54791 , Nov. 22, 1978, as amended at 58 FR 44960 , Aug. 25, 1993]
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Goto Section: 90.421 | 90.425
Goto Year: 2014 |
2016
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