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47 U.S.C. § 354a — Technical requirements of equipment on radiotelephone equipped ships
Federal law — U.S. Code and appendices · legal_authorities
Cargo ships of three hundred gross tons and upward but less than one thousand six hundred gross tons may, in lieu of the radiotelegraph station prescribed by [section 354 of this title](https://uscode.house.gov/view.xhtml?req=granuleid:USC-prelim-title47-section354&num=0&edition=prelim), be equipped with a radiotelephone station complying with the following requirements:
**(a)** The radiotelephone station shall be in the upper part of the ship, so located that it is sheltered to the greatest possible extent from noise which might impair the correct reception of messages and signals, and, unless such station is situated on the bridge, there shall be efficient communication with the bridge.
**(b)** The radiotelephone installation shall be capable of transmitting and receiving on the frequencies, and using the classes of emission, designated by the Commission pursuant to law for the purposes of distress and safety of navigation.
**(c)** The radiotelephone installation shall have a minimum normal range of one hundred and fifty nautical miles; that is, it shall be capable of transmitting and receiving clearly perceptible signals from ship to ship by day and under normal conditions and circumstances over this range.
**(d)** There shall be available at all times a main source of electrical energy sufficient to operate the installation over the normal range required by subsection (c) of this section. If batteries are provided they shall have sufficient capacity to operate the transmitter and receiver for at least six continuous hours under normal working conditions. In installations made on or after November 19, 1952, a reserve source of electrical energy shall be provided in the upper part of the ship unless the main source of energy is so situated.
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Source location: Title 47, Chapter 5, § 354a; chapter-005-wire-or-radio-communication.md
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Cargo ships of three hundred gross tons and upward but less than one thousand six hundred gross tons may, in lieu of the radiotelegraph station prescribed by [section 354 of this title](https://uscode.house.gov/view.xhtml?req=granuleid:USC-prelim-title47-section354&num=0&edition=prelim), be equipped with a radiotelephone station complying with the following requirements:
**(a)** The radiotelephone station shall be in the upper part of the ship, so located that it is sheltered to the greatest possible extent from noise which might impair the correct reception of messages and signals, and, unless such station is situated on the bridge, there shall be efficient communication with the bridge.
**(b)** The radiotelephone installation shall be capable of transmitting and receiving on the frequencies, and using the classes of emission, designated by the Commission pursuant to law for the purposes of distress and safety of navigation.
**(c)** The radiotelephone installation shall have a minimum normal range of one hundred and fifty nautical miles; that is, it shall be capable of transmitting and receiving clearly perceptible signals from ship to ship by day and under normal conditions and circumstances over this range.
**(d)** There shall be available at all times a main source of electrical energy sufficient to operate the installation over the normal range required by subsection (c) of this section. If batteries are provided they shall have sufficient capacity to operate the transmitter and receiver for at least six continuous hours under normal working conditions. In installations made on or after November 19, 1952, a reserve source of electrical energy shall be provided in the upper part of the ship unless the main source of energy is so situated.
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Federal law — U.S. Code and appendices · legal_authorities
The radiotelegraph station and the radio direction finding apparatus required by [section 351 of this title](https://uscode.house.gov/view.xhtml?req=granuleid:USC-prelim-title47-section351&num=0&edition=prelim) shall comply with the following requirements:
**(a)** The radiotelegraph station shall include a main installation and a reserve installation, electrically separate and electrically independent of each other: Provided, That, in installations on cargo ships of three hundred gross tons and upward but less than one thousand six hundred gross tons, and in installations on cargo ships of one thousand six hundred gross tons and upward installed prior to November 19, 1952, if the main transmitter complies with all the requirements for the reserve transmitter, the latter may be omitted.
**(b)** The radiotelegraph station shall be so located that no harmful interference from extraneous mechanical or other noise will be caused to the proper reception of radio signals, and shall be placed in the upper part of the ship in a position of the greatest possible safety and as high as practicable above the deepest load waterline. The location of the radiotelegraph operating room or rooms shall be approved by the Commandant of the Coast Guard. The radiotelegraph installation shall be installed in such a position that it will be protected against the harmful effects of water or extremes of temperature, and shall be readily accessible both for immediate use in case of distress and for repair.
**(c)** The radiotelegraph operating room shall be of sufficient size and of adequate ventilation to enable the main and reserve radiotelegraph installations to be operated efficiently, and shall not be used for any purpose which will interfere with the operation of the radiotelegraph station
Source: Supplied U.S. Code snapshot — release unconfirmed · 47 U.S.C. § 354
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Federal law — U.S. Code and appendices · legal_authorities
Page 222
TITLE 47—TELECOMMUNICATIONS
§ 354a
of taking bearings from which the true bear-
ing and direction may be determined. It shall
be capable of receiving signals on the radio-
telegraph frequencies assigned by the radio
regulations annexed to the International Tele-
communication Convention in force for the
purposes of distress, direction finding, and
maritime radio beacons, and, in installations
made after May 26, 1965, such other frequencies
as the Commission may for safety purposes
designate.
(June 19, 1934, ch. 652, title III, § 355, formerly
§ 354, as added May 20, 1937, ch. 229, § 10(b), 50
Stat. 193; amended 1946 Reorg. Plan No. 3,
§§ 101–104, eff. July 16, 1946, 11 F.R. 7875, 60 Stat.
1097; renumbered § 355 and amended Aug. 13, 1954,
ch. 729, § 2(a)(1), (c), 68 Stat. 706; Pub. L. 89–121,
§ 6, Aug. 13, 1965, 79 Stat. 514.)
Editorial Notes
AMENDMENTS
1965—Pub. L. 89–121 substituted ‘‘radiotelegraph sta-
tion’’ for ‘‘radio installation’’ in opening provisions.
Subsec. (a). Pub. L. 89–121, among other changes, sub-
stituted ‘‘radiotelegraph station’’ for ‘‘radio installa-
tion’’, required the main installation and the reserve
installation to be electrically separate and independent
of each other, and included cargo ships between 300 and
500 tons within the ships that may omit the reserve
transmitter if the main transmitter complies with all
the requirements for the reserve transmitter.
Subsec. (b). Pub. L. 89–121 required the radiotelegraph
station to be so located that no harmful interference
will be caused to the proper reception of radio signals,
and to be installed in such a position that it will be
protected against the harmful effects of water or ex-
tremes of temperature, and will be readily accessible
both for immediate use
Source: Supplied 2024 U.S. Code historical extraction · 47 U.S.C. § 354a
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