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headphones or a loudspeaker may be used, on condition that use of the loudspeaker is not less effective than use of headphones. While maintaining this watch, the operator shall not use or operate any radio equipment (such as, for examples, broadcast receivers, or amateur transmitters or receivers) not actually required in connection with maritime mobile service.

(b) All public coast stations licensed to use frequencies in the authorized bands between 405 and 535 kc/s shall, during their hours of service, remain on watch on the calling frequency 500 kc/s, except when the operator is transmitting on 500 kc/s, operating the station transmitting or receiving equipment on any other frequency authorized for transmission or reception in the maritime mobile service (including maintenance of the watch on 143 kc/s if required as provided by paragraph (c) of this section) if it is not possible to maintain at the same time, by any practicable means, the watch for calls on 500 kc/s. practicable means of maintaining this watch would include a loudspeaker or headphones energized, if necessary, by an additional radio receiver (other than the receiver actually in use for nonwatch purposes) which is tuned to 500 kc/s. The provisions of this section, however, shall not relieve the coast station from complying with the requirements for a safety watch as prescribed in paragraph (a) of this section.

Any

(c) On condition that compliance with the following requirement shall in no way interrupt or reduce the efficiency of the safety watch prescribed in paragraph (a) of this section, each coast station equipped and licensed for communication by means of class A1 emission on frequencies within the band 90-160 kc/s shall, during its hours of service when not engaged in communication with another station of the maritime mobile service, keep watch for calls every hour on the frequency 143 kc/s for five minutes beginning at x h. 35 Greenwich mean time.

§ 81.191 Radiotelephone watch by coast stations.

(a) Each public coast station licensed to use telephony shall, during its hours of service, keep watch on the frequency (s) authorized for working, which are used normally by mobile stations for transmission by telephony to the particular coast station; or in lieu of such

watch, the coast station shall, during its hours of service, monitor such frequency (s) by any apparatus which will automatically intercept signals from mobile stations with no less efficiency than that attainable by a watch and which automatically indicates the interception of such signals by either aural or visual

means.

(b) As an alternative to keeping watch on (or monitoring) a working frequency in the band 1605-3500 kc/s as prescribed by paragraph (a) of this section, a public coast station may, in the discretion of the station licensee, keep watch on 2182 kc/s.

(c) (1) Each public coast station 11censed to transmit by telephony on one or more frequencies within the band 1605 to 3500 kc/s shall, during its hours of service for telephony, maintain an efficient watch for reception of A3 and A3H emissions on the carrier frequency 2182 kc/s whenever such station is not being used for transmission on that frequency: Provided, That the Commission may exempt any coast station from compliance with this requirement if it considers that the frequency 2182 kc/s is adequately guarded by other stations or that circumstances relative to the operation or location of the involved coast station are such as to render this requirement unreasonable or unnecessary for the purpose of this paragraph. The watch referred to in this subparagraph will not be deemed "efficient" unless the coast station is capable of normally receiving A3 emission on 2182 kc/s from mobile stations within the associated working frequency service area of the coast station, including periods of time when the coast station is transmitting on any other authorized frequency.

(2) Each public coast station licensed to transmit by telephony on one or more frequencies within the band 156-162 Mc/s shall, during its hours of service for telephony, maintain an efficient watch for the reception of Class F3 emission on the frequency 156.800 Mc/s whenever such station is not being used for transmission on that frequency: Provided, That the Commission may exempt any coast station from compliance with this requirement if it considers that circumstances relative to the operation or location of the involved coast station are such as to render this requirement unreasonable or unnecessary for the purpose of this paragraph.

(d) Each limited coast station licensed to transmit by telephony on one or more working frequencies in the band 156-162 Mc/s shall, during its hours of service, maintain an efficient watch for Class F3 emission on 156.800 Mc/s, whenever such station is not being used for transmission on that frequency: Provided, That the Commission may exempt any coast station from compliance with this requirement if it considers that circumstances relative to the operation or location of the involved coast station are such as to render this requirement unreasonable or unnecessary for the purpose of this paragraph. In the event 156.800 Mc ́s is being used for distress, urgency, or safety, such station shall keep an additional watch on each assigned working frequency except in the case of duplex operation, where watch shall be kept on the associated ship frequency.

(e) With respect to those provisions of paragraphs (a), (b), (c), and (d) of this section pertaining to watch, the person who keeps such watch shall, in each instance, and at all times during the hours of service of the station, be a person who is authorized by the station licensee to operate, in accordance with applicable law and regulations, the appropriate radiotelephone transmitting apparatus of the particular station.

128 F.R. 13983, Dec. 21, 1963, as amended at 29 FR. 11089, July 31, 1964; 33 FR. 10858, July 31, 1968; 33 FR. 12674, Sept. 6, 1968]

§ 81.192 Maintenance tests.

Stations subject to this part are authorized to engage in a minimum amount of test transmissions when considered by the station licensee to be necessary for the proper maintenance of the station: Provided, That precautions shall be taken always to avoid, in so far as may be possible, interference to other stations: Further provided, That this test transmission shall conform to such test operating procedure as is prescribed elsewhere in this part for the particular class of station involved.

§ 81.193 Inspection of antenna tower lighting.

(a) The licensee of a station subject to this part which has an antenna or antenna supporting structure(s) required to be illuminated pursuant to the provisions of section 303 (q) of the Communications Act shall:

(1) Make a daily check of the tower lights not later than one hour after local sunset either by visual observation of the tower lights or by observation of an automatic indicator to insure that all such lights are functioning properly as required;

(2) Report immediately by telephone or telegraph to the nearest Airways Communication Station or office of the Federal Aviation Agency any observed failure of any code and/or rotating beacon light(s) if such failure(s) is (are) not corrected within 30 minutes after observation thereof, regardless of the cause of such failure. Further notification by telephone or telegraph shall be given the above station or office immediately upon resumption of the required illumination; and

(3) Inspect at intervals of at least once each 3 months all code and rotating beacon light(s) and automatic lighting control devices to insure that such apparatus is functioning properly as required.

(b) The station licensee or his representative shall make entries in the radio station log appropriate to the requirements of paragraph (a) of this section. as follows:

(1) The date and time of each day that the tower lights are turned on and off, if manually controlled;

(2) The time that the daily check of proper operation of the tower lights was made, either by visual observation of the tower lights or by observation of an automatic indicator;

(3) In the event of any observed failure of the tower lighting:

(1) Nature of such failure;

(ii) Date and time that the failure was observed;

(iii) Date, time, and nature of the adjustments, repairs, or replacements made;

(iv) Entry showing the identification of the Airways Communication Station or office of the Federal Aviation Agency which was notified of the failure of any code and/or rotating beacon light(s) not corrected within 30 minutes after observation and an entry of the date and time that such notice was given;

(V) Date and time that notice was given to the Airways Communication Station or office of the Federal Aviation Agency that the required illumination was resumed:

(4) Upon completion of the periodic inspection required by paragraph (a) (3) of this section:

(i) The date of the inspection and the condition of all required lights and associated lighting control devices, together with the measured voltage under normal load at a reference point in the lighting circuit and the computed voltage at each lamp socket.

(ii) Any adjustments, replacements, or repairs made to insure compliance with the lighting requirements and the date such adjustments, replacements, or repairs were made.

§ 81.194 Maintenance of station log.

(a) Each station subject to this part which is required, under the provisions of this part pertaining to the particular class of station, to keep a radio station log, shall, in addition, comply with the applicable provisions of the following paragraphs of this section; the station licensee and the licensed radio operator (when a licensed operator is required) in charge of the station shall be responsible for compliance with this section.

(b) The log shall be kept in an orderly manner, in useable form, and in such detail that the information required for the particular class of station concerned is readily available. Key letters or abbreviations may be used if their proper meaning or explanation is contained elsewhere in the same log.

(c) The station log or any portion thereof shall not be erased, obliterated, or wilfully destroyed within the period of retention required by § 81.115. However, during this period any necessary correction may be made of such log but only by the person originating the entry and that person shall strike out the erroneous portion, initial the correction made, and indicate the date of correction.

Subpart H-Coast Stations, Use of Telegraphy

SOURCE: The provisions of this Subpart H appear at 28 F.R. 13987, Dec. 21, 1963, unless otherwise noted.

§ 81.201 Supplemental eligibility requirements for public coast station authorization.

Subject to the basic eligibility requirements set forth in § 81.23, an authorization for a public coast station may be granted to any person,

or State or local government subdivision, or any agency of the Federal Government which is subject to the provisions of section 301 of the Communications Act, provided the applicant is legally, financially, and technically qualified to render the proposed service, and the public interest, convenience or necessity would be served by a grant thereof. § 81.202 Points of communication.

(a) Subject to the conditions and limitations imposed by the terms of the particular coast station license or by the applicable provisions of this part with respect to the use of particular radiochannels, public coast stations using telegraphy are authorized to communicate:

(1) With any ship station or aircraft station operating in the maritime mobile service, for the transmission or reception of safety communication;

(2) With any land station for the purpose of facilitating the transmission or reception of safety communication to or from a ship or aircraft station;

(3) With public ship stations, Government ship stations, aeronautical public service stations on board aircraft, and Government aircraft stations, for the transmission or reception of public correspondence:

(1) When the mobile station uses telegraphy on a frequency assignment available under the provisions of Part 83 of this chapter for use by ship stations for communication by means of telegraphy with public coast stations, or;

(ii) In respect to a United States Government or foreign ship or aircraft station, when such mobile station uses telegraphy on a frequency assignment available in accordance with the International Radio Regulations for use by ship stations for communication by means of telegraphy with public coast stations.

(b) Upon application, a public coast station using telegraphy may be authorized to transmit press material, and meteorological and marine navigational information of benefit to mariners, additionally to designated fixed locations, whenever the same information is transmitted by such coast station simultaneously and primarily to ship stations: Provided, A sufficient need for such authorization is shown to exist.

(c) Each public coast station using telegraphy is authorized to communi

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(2) For the transmission or receipt of message traffic destined to a mobile station which, by reason of its known or reported geographic location at the time, can be communicated with more effectively or more expeditiously by the coast station which receives such message traffic for relay to the mobile station: Provided, however, That this procedure shall not be used for normal routing of radio traffic, but only when the coast station initially concerned is unable to communicate in an effective manner directly with such mobile station:

(3 For the transmission or receipt of message trafic, which originated at a mobile station, by a public coast station in the Great Lakes region exclusively. when the use of available point-to-point communication facilities would unduly delay the delivery of such message traffic to the addressee(s):

(4) Such communication as is permissible under subparagraphs (2) and (3) of this paragraph shall be conducted only in exceptional circumstances and with discretion, without incurring additional charges: Provided, Such utilization of radiotelegraphy shall not in any way replace or be used in Neu of pointto-point communication facilities which are available for the forwarding of message trafic to and from the particular coast stations involved.

(5) Only radio-channels authorized for working with ship stations (and used primarily for that purpose) shall be employed for this communication between coast stations and, in so far as may be practicable, only authorized frequencies within the band 415 kcy's to 5000 ke s shall be used;

6 All communications engaged in under the provisions of this paragraph shall be confined exclusively to that

which is actually required to facilitate the transmission or reception of shipto-shore public correspondence or to enhance safety at sea;

(7) Neither harmful interference nor intolerable delay shall be caused to communication between mobile stations and land stations or to communication between mobile stations.

§ 81.203 Supplemental eligibility requirements for limited coast station authorization.

(a) Subject to the statutory eligibility requirements set forth in § 81.23, an authorization for a limited coast station using telegraphy may be granted to any person, or State or local government subdivision, or any agency of the Federal Government which is subject to the provisions of section 301 of the Communications Act: Provided, The applicant is:

(1) Regularly engaged in performing a service for one or more governmental agencies; or

(2) A subsidiary corporation proposing to furnish a non-profit radiocommunication service to its parent corporation or to another subsidiary of the same parent where the party to be served is regularly engaged in performing a service for one or more governmental agencies: or

3 A non-profit corporation or association, organized for the purpose of furnishing a maritime mobile service solely to persons who are regularly engaged in performing a service for one or more governmental agencies.

(b) Each application for station suthorization for a hmited coast station shall be accompanied by a written stateIn detall sumcient to indicate clearly the applicant's eligibility under paragraph a of this section.

ment

§ 81.204 Points of communication of limited coast stations.

(a) Limited coast stations using teleg raphy are authorized to communicate normally with the categories of ship stations designated herewith, subject to the conditions and limitations imposed by the terms of their particular station Loenses or by the applicable provisions of this part with respect to the use of particular radio-channels:

1) Any ship station using telegraphy on the assigned frequency 500 ko s:

2) Specified limited ship stations licensed by the Commission and using

telegraphy on a frequency assignment designated for this purpose;

(3) Specified public ship stations licensed by the Commission and using telegraphy on a frequency assignment designated for this purpose.

(b) With respect to the terms of paragraph (a) (2) and (3) of this section, the specific ship stations with which a limited coast station is authorized to communicate shall be designated appropriately in the license of such coast station. § 81.205 Nature of service of limited

coast stations.

(a) Limited coast stations using telegraphy shall:

(1) Not be open to public correspondence;

(2) Not be used to render a communications common carrier service;

(3) Not be used for the transmission of press material or news items which are not required to serve a governmental purpose;

(4) Be used exclusively to serve governmental purposes including the transmission of safety communication.

(b) In areas where adequate and appropriate weather and hydrographic information is transmitted by means of telegraphy through the medium of one or more public coast stations or United States government stations, limited coast stations shall not duplicate that service. In all other respects, limited coast stations may transmit by means of telegraphy such weather and hydrographic information as is required for the ships with which they normally communicate. § 81.206 Assignable frequencies.

(a) Each of the specific frequencies in kilocycles hereinafter designated in this paragraph may be licensed as an assigned frequency for use by coast stations employing telegraphy and located in Puerto Rico, the State of Hawaii or within the indicated general portion of the seacoast area of the continental United States, excluding Alaska, subject to and in accordance with the provisions of paragraph (b)(1) of this section and Subpart E of this part, and upon the express condition that interference shall not be caused to any service or station which, in the discretion of the Commission, may have priority on the frequency or frequencies involved: Provided, That the use of each of these frequencies may be restricted by the Commission to specific areas or locations in order to avoid or

minimize interference between stations: Provided further, That frequencies below 150 kc/s are assignable to Class I coast stations only; frequencies above 5000 kc/s are assignable primarily to Class I coast stations, and secondarily to Class II coast stations serving inland waters of the United States (including the Great Lakes) subject to showing of need therefor and on condition that interference shall not be caused to any Class I coast station:

Frequencies (kc/s)

North Atlantic: 112.85, 124.05, 130.35, 132.10, 134.55, 187.00, 143.00, 146.80, 147.50, 418, 436, 442, 460, 472, 476, 482, 500, 2036, 2040.5, 2046.5, 2051, 2054, 2060, 4268, 4331, 4343, 4346, 4367, 6376, 6414.5, 6418, 6502, 6505.5, 6512.5, 6519.5, 8502, 8514, 8586, 8610, 8630, 8658, 8686, 12745.5, 12925.5, 12948, 12961.5, 12997.5, 13020, 13024.5, 13033.5, 13060.5, 16968.8, 16973.6, 16997.6, 17021.6, 17098.6, 17242.4, 17271.2, 22407, 22485, 22503, 22521, 22599, 22617.

Central Atlantic: 428, 500, 2063, 4346, 6484.5, 8502, 12885.0.

South Atlantic: 137.70, 143.00,1 434, 464, 472, 488, 500, 2039, 2048.5, 2051, 2057, 4250, 4292, 6390, 6407.5, 6411, 8486, 8526, 8686. 8722, 12952.5, 12970.5, 13011, 13078.5, 17093.6, 17160.8, 17170.4, 17199.2, 17256.8, 22431, 22503, 22569.

North Pacific: 482, 488, 500, 2058.5, 2063, 4349, 6411, 8582, 8658, 12907.5, 12916.5, 17007.2, 22539.

Central Pacific: 126.15, 148.00, 147.85, 426, 436, 460, 476, 500, 2037.5, 2045, 2061.5, 4247, 4274, 4358, 6365.5, 6477.5, 6488, 6516, 8558, 8618, 8642, 8714, 12808.5, 12844.5, 13002, 13033.5, 13114.5, 17016.8, 17026.0, 17088.8, 17184.8, 22425, 22479, 22515, 22557.

South Pacific: 418, 464, 482, 500, 2049.5, 2055.5, 4283, 4367, 6463.5, 6523, 8590, 8606, 8642, 12912, 12993, 13033.5, 13110, 17064.8, 17088.8, 17218.4, 22413, 22467.

Gulf of Mexico: 143.00,1 416, 420, 434, 438, 478, 484, 500,2 2042, 2048, 2049.5, 2052.5, 2055.5, 2063, 4256, 4274, 4310, 4322, 6369, 6435.5, 6446, 6495, 8550, 8570, 8666, 8714, 8722, 8742, 12826.5, 12840, 13038, 13051.5, 13078.5, 13123.5, 17117.6, 17170.4, 17172.4, 17208.8, 17256.8, 22431, 22467. 22569.

Great Lakes: 482, 500, 4316, 6474, 8534. Hawail: 484, 500, 2052.5, 4295, 6407.5, 8542. 13029, 16978.4, 22509.

Puerto Rico: 143.00,1 486, 500, 2052.5, 4244. 8726, 13119.

(b) (1) In addition to the specific frequencies listed in paragraph (a) of this section, other frequencies within bands between 10 kc/s and 27,500 kc/s shown in the Commission's Table of Frequency Allocations contained in § 2.106 of this

1 Calling frequency.

* Calling and distress frequency.

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