| RSB Issue | [Regulations pursuant to the act of August 13, 1912.] [To be cut out and pasted in your copy.] |
| May 1, 1920 (No. 37) |
Paragraph 86, page 58, amended April 15, 1920 to read:
When applications and forms have been properly submitted, ship and amateur stations may be operated in accordance with the laws and regulations governing the class of station for which application for license has been made, until such time as the application can be acted upon unless the applicant is otherwise instructed and provided temporary official call letters are assigned. Paragraph 119, page 63, amended May 1, 1920 to read: If the applicant qualifies, the radio inspector or examining officer will forward the papers to the Commissioner of Navigation, with his recommendation. If approved, the license will be properly indorsed by the Secretary of Commerce and delivered to the licensee through the recommending officer. It will be noted that the following was eliminated from the above paragraph: "A blank commercial license, with." |
October 1, 1920 (No. 42) |
Paragraph 9, page 50, amended October 1, 1920 to read: Every ship station shall carry a reasonable number of spares of such parts of both the main and emergency radiotelegraph equipments as are subject to undue wear, deterioration, or liability to accident, and the tools to make the necessary repairs at sea. |
November 1, 1920 (No. 43) |
Paragraph 111, page 62, amended November 1, 1920 to read: The examination will be conducted so as to determine the following facts: (a) That the applicant is sufficiently familiar with the Continental Morse Code to recognize the distress signal (S O S) when included in a list of other words or signals sent slowly (approximately ten words a minute); (b) that the applicant is sufficiently familiar with the Continental Morse Code to recognize radio call letters of the vessel on which he desires to operate when sent slowly and repeated several times; (c) that the applicant is sufficiently familiar with the type of the receiving apparatus of the vessel on which he desires to operate to determine by a buzzer or similar test that the detector or receiving apparatus is properly adjusted to receive signals. |
May 2, 1921 (No. 49) |
Paragraph 153, page 67, amended April 9, 1921, is modified by the addition of the following proviso: "provided that such renewal of licenses may also be issued in the discretion of the radio inspector where the service record on the back of the license shows 12 months satisfactory service during the two-year period of the license." |
June 1, 1921 (No. 50) |
Paragraph 86, page 58, repealed [May 28, 1921]. Paragraph 86 of the Regulations Governing Radio Communication, edition of August 15, 1919, page 58, is hereby repealed to take effect on July 1, 1921, as to stations now operating without license under paragraph 86, and to take effect immediately as to new stations for which applications may be filed under paragraph 86. |
January 3, 1922 (No. 57) |
Paragraph 57, page 55, amended December 1, 1921 to read: CLASS 2.--Limited commercial stations are not open to public service and are licensed for a specific commercial service or services defined in the license. Stations of this class must not transmit to or accept public messages from other stations. No rates are authorized. Licenses of this class are required for all transmitting radio stations used for broadcasting news, concerts, lectures, and such matter. A wave length of 360 meters [833 kilohertz] is authorized for such service, and a wave length of 485 meters [619 kilohertz] is authorized for broadcasting crop reports and weather forecasts, provided the use of such wave lengths does not interfere with ship to shore or ship to ship service. Paragraph 58, page 55, which reads: "If a coast station, the operators shall hold a commercial second-grade license or higher." (Par. 57) is amended, effective January 10, 1922, to read: "Operators of limited commercial stations shall hold a commercial second-grade license or higher." |
September 1, 1922 (No. 65) |
Paragraph 57, page 55, amended August 8, 1922 to read: CLASS 2.--Limited commercial stations are not open to public service and are licensed for a specific commercial service or services defined in the license. Stations of this class must not transmit to or accept public messages from other stations. No rates are authorized. Licenses of this class are required for all transmitting radio stations used for broadcasting news, concerts, lectures, and such matter. A wave length of 360 meters [833 kilohertz] is authorized for such service, and a wave length of 485 meters [619 kilohertz] is authorized for broadcasting crop reports and weather forecasts, provided the use of such wave lengths does not interfere with ship to shore or ship to ship service. Class B radiotelephone broadcasting stations. A new class of radiotelephone broadcasting station license is hereby established to be known as class B. A license will not be issued for a station in this class which does not comply in every respect with the specifications hereunder. Specifications covering the requirements governing the construction, licensing, operating and service of class B radiotelephone broadcasting stations: Station. WAVE LENGTH.--The wave length of 400 meters [750 kilohertz] only will be assigned for the use of stations of this class which must be reasonably free from harmonics. POWER.--The power supply must be dependable and nonfluctuating. The minimum required will be 500 watts in the antenna and the maximum shall not exceed 1,000 watts in the antenna. MODULATION.--The system must be so arranged as to cause the generated radio frequency current to vary accurately according to the sound impressed upon the microphone system. SPARE PARTS.--Sufficient tubes and other material must be readily available to insure continuity and reliability of the announced schedule of service. ANTENNA.--The antenna must be so constructed as to prevent swinging. SIGNALING SYSTEM.--Some dependable system must be provided for communication between the operating room and the studio. STUDIO.--The radio equipment in the studio must be limited to that essential for use in the room. The room shall be so arranged as to avoid sound reverberation and to exclude external and unnecessary noises. Service. PROGRAMS.--The programs must be carefully supervised and maintained to insure satisfactory service to the public. MUSIC.--Mechanically operated musical instruments may be used only in an emergency and during intermission periods in regular program. DIVISION OF TIME.--Where two or more stations of class B are licensed in the same city or locality a division of time will be required if necessary. Forfeiture of 400 meters privilege. Licenses issued for the use of the 400 meters wave length [750 kilohertz] shall specifically provide that any failure to maintain the standards prescribed for such stations may result in the cancelation of the license and requiring the station to use the 360 meters wave length [833 kilohertz]. |
October 2, 1922 (No. 66) |
Paragraph 57, page 55: The specifications applying to class B radiotelephone broadcasting stations are amended [September 22, 1922] to read as follows: Music. The use of mechanically operated instruments is prohibited. |
May 1, 1923 (No. 73) |
Paragraph 57, page 55, amended April 2, 1923 to read: CLASS 2.--Limited commercial stations are not open to public service and are licensed for a specific commercial service or services defined in the license. Stations of this class must not transmit to or accept public messages from other stations. No rates are authorized. Licenses of this class are required for all transmitting radio stations used for broadcasting news, music, lectures, church services, Government reports, and such matters, and do not permit the transmission of private or commercial communications. The reading of telegrams or letters by broadcasting stations will not be construed point-to-point communication so long as the signer is not addressed in person and so long as the text matter is of general interest. Broadcasting stations must be operated by or under the supervision of an operator holding a commercial second-class license or higher; such operator must be on duty during the entire time the station is being operated No testing or experimenting is authorized in broadcasting stations between the hours of 10 a. m. and midnight, local standard time. Broadcasting stations the operation of which interfere with the reception of time signals and meteorological information by marine service must remain silent while such signals are being transmitted. Class A radiotelephone broadcasting stations. Class A radiotelephone broadcasting station licenses will be issued to stations equipped to use power not exceeding 500 watts in the antenna and will be assigned a wave length between 222 meters (1,350 kilocycles) and 300 meters (1,000 kilocycles). Where more than one station of this class are licensed in the same city or locality a division of time will be required, if necessary. Class B radiotelephone broadcasting stations. A license will not be issued for a station in this class which does not comply in every respect with the specifications hereunder. Specifications covering the requirements governing the construction, licensing, operating and service of class B radiotelephone broadcasting stations: Station. Wave Length.--The wave lengths between 300 and 345 meters and 375 and 545 meters [1,000 through 870 and 800 through 550 kilohertz] only will be assigned for the use of stations of this class, which must be free from harmonics. Whenever necessary the use of a coupled circuit transmitter will be required. Hereafter but one wave length within these ranges, including the 400 meter wave length, will be assigned to any one locality. Power.--The power supply must be dependable and nonfluctuating. The minimum required will be 500 watts in the antenna and the maximum shall not exceed 1,000 watts in the antenna. Modulation.--The system must be so arranged as to cause the generated radio frequency current to vary accurately according to the sound impressed upon the microphone system. Spare Parts.--Sufficient tubes and other material must be readily available to insure continuity and reliability of the announced schedule of service. Antenna.--The antenna must be so constructed as to prevent swinging. Signaling system.--Some dependable system must be provided for communication between the operating room and the studio. Studio.--The radio equipment in the studio must be limited to that essential for use in the room. The room shall be so arranged as to avoid sound reverberation and to exclude external and unnecessary noises. Service. Programs.--The programs must be carefully supervised and maintained to insure satisfactory service to the public. Music.--The use of mechanically operated instruments is prohibited. Division of time.--Where two or more stations of class B are licensed in the same city or locality a division of time will be required, if necessary. Forfeiture of Class B privilege. Licenses issued for the use of the wave lengths between 300 and 345 meters and 375 and 545 meters [frequencies of 1,000 to 870 and 800 to 550 kilohertz] shall specifically provide that any failure to maintain the standards prescribed for such stations may result in the forfeiture of the class B privilege and relicensing of the station to use a wave length below 300 meters [frequency above 1000 kilohertz]. Class C radiotelephone broadcasting stations. All radiotelephone broadcasting stations now licensed to use 360 meters (834 kilocycles) are placed in this class. No new licenses will be issued for stations to use this wave length. Renewal licenses for the use of 360 meters will be granted if desired. |