RADIO SERVICE BULLETIN

INDEX OF REGULATIONS AND MISCELLANEOUS ARTICLES APPEARING IN THE RADIOSERVICE BULLETIN, YEARS 1920 TO 1931

Subject Month Year

Abbreviations: New international_____________________________________ ._____________ September__ 1920Accounts:

Instrirctionsfor handling traffic_________________________________________________ June________ 1922International radio accounting section transferred from Navy Department to August______ 1924Department of Commerce .

Aeronautical (aircraft) : Operator and station licenses -------------------------------- June________ 1930Air-line distances : Tableof,between 15cities inUnited States------------------------ March______ 1928Amateur stations and operators :

War-time restrictionson amateur operatorsand amateur stations removed-------- October_____ 1919Regulations regarding licensed transmitters must be inductivelycoupled--------- -----do------- 1919Regulations 3 and 4, act of Aug. 13, 1912, must be observed---------------------- _____do_______ 1919Message from Hartford to Washington direct on 200 meters______________________ February___ 1920Stations may operate pending action upon application for licenses_______________ May________ 1920Restrictions on special stations-stations not capable ofadjustment on 200-meter April________ 1921wave .

Use of 175, 200 or 225 meters proposed for amateur broadcasting_________________ February___ 1922American radio relay league trans-Atlantic tests of 1922--------------------------- October_____ 1922New station regulations______________________________ .__________________________ July_________ 1923Allowed to use short waves______________________________________________________ August______ 1924Newregulations__________________________________________________________January_____ 1925Restricted in communication with commercial and government stations_________ February___ 1925Picture apparatus authorized for use by amateurs -------------------------- June________ 1925Allowed to use radiotelephone equipment ---------------------------------- December___ 1925List of Cuban experimental stations_____________________________________________ October_____ 1927Licensing and operation of amateur stations------------------------------------- January_____ 1928Revised station regulations_____________________-________________________________ March______ 1928

Do_________________________ .________________________________________________ September__ 1928Do_____________________________________________________________________ .____ December___ 1928

List of Cuban stations__________-_________-_____________________________________ August______ 1929Revised station regulations______________________________________________________ January_____ 1930Revised stationregulations, General Order No.84,Apr. 4,1930-------------------- ApriL------ 1930

Apparatus:List of vessels on Great Lakes equip~ed

?Viawith vacuum-tube receivers____________ -----do---- 1924

Investigation of interference caused Cottrell electric precipitator------------ June________ 1924Investigation of power-line interference_____________________:____________________ _____do______ 1924Radio Interference from electrical precipitators-------------------------------___ August______ 1924Interference from harmonics_________________________________________________ .___ December___ 1924Increase power for broadcasting stations_________________________________________ _____do_______ 1924Testing and adjusting piezo oscillators by Bureau of Standards_________________ January_____ 1928

Do__________________________________________________________________________ February___ 1928Do__________________________________________________________________________ September__ 1928Do_______________________________-_____________________________-____-_______ January_____ 1930

Broadcasting stations :Must not accept public messages from other stations-3B0 meters authorized _____do_____ 1922concerts, etc. ; 485 meters for crop and weather reports .

Commercial second-class operator's license or higher required for operation______ -----do----- 1922List of United States broadcasting stations______________________________________ ApriL_-____ 1922Regulations pertaining to the broadcasting of weather, crop, and market infor- May_______ 1922mation.

List of United States broadcasting stations -------------------------------------- tpriL______- 1922Do__________________________________________________________________________May________ 1922Do__________________________________________________________________________ July--------- 1922

Class B (400-meter wave) established, Regulations 57, Radio Laws and Regula- September__ 1922tions, edition Aug. 15, 1919 amended.

Class B regulations amended____________________________________________________ October_____ 1922Operators of broadcasting stations cautioned regarding violation of sec. 2, act of January_____ 1923Aug. 13, 1912.

List of United States broadcasting stations_________________________________ April________ 1923Test perinds limited, class B regulations, class O (380 meters), established, eta___ May________ 1923Developmentregulations________________________________________________________ _____do_______ 1923List of United States broadcasting stations -----------------------t------------- February___ 1924NewYork conference recommends discontinuance of 450 meters by ships________ _____do_______ 1924NewYork conference on radiating receiving sets________________________________ _____do_______ 1924List of British broadcasting stations_____________________________________________ March______ 1924List of French broadcasting stations --------------------------------------------- -----do----- 1924List of Cuban broadcasting stations --------------------------------------------- -----do----- 1924List of United States broadcasting stations -------------------------------------- -----do---- 1924List of Canadian broadcasting stations ----------------------------------------- _ May________ 1924List of Mexican broadcasting stations ------------------------------------------- -----do----- 1924List of Argentine broadcasting stations__________________________________________ July_________ 1924List of foreign broadcasting stations_____________________________________________ November__ 1924Interference from harmonics_____________________________________________________ December___ 1924Increased power________________________________________________________________ _____do_______ 1924List of United States broadcasting stations -------------------------------------- February___ 1925

Do___________________________________________________________________ .______ _____do_______ 1925Do__________________ ._______________________________________-_______________ June-------- 1925Do_________________________________________-_____________________September__ 1925

List of foreign broadcasting stations__________________________________1925List of United States stations equipped so as to suppress harmonics-------------- November__ 1925Additional list of United States stations equipped so as to suppress harmonics___ December___ 1925List of United States broadcasting stations______________________________________ January_____ 1928

RADIO SERVICE BULLETIN 21INDEX OF REGULATIONS AND MISCELLANEOUS ARTICLES APPEARING IN THE RADIO

SERVICE BULLETIN, YEARS 1920 TO 1931-continued

Subject Month Year

Broadcasting stations-Continued .Additional list of United States broadcasting stations equipped so astosuppress January_____ 1926harmonics.

List of Canadian, Cuban, and Mexican broadcasting stations in order of fre- February___ 1928quency .

Broadcasting (low and high frequency) stations:List of broadcasting stations in vicinity of Chicago equipped with piezo crystal -----do------- 1926

oscillators .Additional list of broadcasting stations in vicinity of Chicago equipped with March______ 1926

iezo crystal oscillators .List of foreign broadcasting stations --------------------------------------------- July_________ 1926List of broadcasting stations in Great Britain and Northern Ireland------------- November__ 1926List of United States broadcasting stations ---------------------

-------December___ 1926

List of European broadcasting stations ------------------------- ______________ .__ do_______ 1926List of Canadian, Mexican Cuban, and HaitianList of United States broadcasting stations issued

stations_____________________January19271927------------

Listtemporary permits

of United States broadcasting stations effective June 15, 1927_______________April______

May________ 1927List of Canadian stations_________________________________________.______________ July_________ 1927List of United States relay broadcasting stations -------------------------------- September__ 1927List of Cuban broadcasting and experimental stations ------------------------- October_____ 1927List of United States broadcasting stations -------------------------------------- January_____ 1928

Do__________________________________________________________________________ February ._ . 1928List of broadcasting stations using 200 watts or more in Eastern Hemisphere____ -____do__.___ 1928Central and South American broadcasting stations using 500 watts______________ -----do------ 1928List of Mexican broadcasting stations------------------------------------------- March______ 1928List of foreign short-wave stations ----------------------------------------------- April________ 1928

Broadcasting stations (all classes) :List of Canadian stations________________________________________________________ August______ 1928List of principal broadcasting stations of the world arranged in order of wave -----do------ 1928

length .List of foreign broadcasting stations_____________________________________________ January_____ 1929List of United States broadcasting stations---------------------

-------------._ ._ February___ 1929

List of Mexican stations____________________________________________ March______ 1929List of Cuban stations-_________________________________________ ..____.________._____ do______ 1929List of United States relay broadcasting stations -------------------------------- April________ 1929List of United States visual (television) stations--------------------------------- _____do______ 1929Prague broadcasting frequency plan_____________________________________________ May________ 1929List of Cuban stations_______________________________________._ .______________._ August______ 1929Prague broadcasting frequency plan revised

stations__________________________________________------------------------------------- _____do______ 1929

1929List of Canadian broadcasting September__Do_____________________________________:___________________________________ . November__ 1930

List of Mexican broadcasting stations___________________________________________ _____do______ 1930Do_________________________________________________ :_____ .__________________ January_____ 1931

List of Cuban broadcasting stations --------------------------------------------- March______ 1931Call signals :

Vessels assigned two (commercial and government) calls temporarily as pub- September__ 1919lished .

Application for, should be made to collectors of customs and radio inspectors in April________ 1920 'field and not direct to this office.

Assignment of, not authority for operation of station____________________________ -----do------ 1920Should not be applied for prior to time application is made for official number ___ May________ 1920

Canada :War-time restrictions removed July 24,1919-------------- ------------- --------- October_____ 1919Wavelength of compass stations changed--------------------------------------- August______ 1920Regulations for Canadian compass stations-------------------------------------- -----do______ 1920Use of 300 and 450 meters restricted ---------------------------------------------- October_____ 1925

Civil service examination:Radio inspector examination____________________________________________________ January_____ 1923

Do_________________________________________________________________________ May________ 1928Do_______________________________________ .________._________________________ November__ 1928Do__________________________________________-__________________________ .____ July_________ 1929Do_________________________-_______________________________________________ . September__ 1929Do__________________________ ._________-_____ ._______________________________ December___ 1930

Commercial stationsExecutive Order No. 3228, Feb. 13, 1920, returning to owners those taken during March______ 1920World Warby United States Navy under Executive orders Apr. 16 and Apr.30, 1917.

List of those reopened after World War----------------------------------------- AprIL------- 1920Compass stations and regulations thereto:

Effective Jan. 1, 1920, 800 meters only to beused by United States naval stations . October_____ 1919Order allowing only 800 meters extended until April, 1920; additional frequency December___ 1919

of 600 meters allowed.800 meters not to be used for other purposes and procedure for obtaining bearings_ May________ 1920List of United States on western Atlantic Ocean________________________________ June________ 1920Wavelength of Canadian stations changed______________________________________ August------ 1920

Do__________________________________________________________________ .__.__ _____do______ 1920Regulations for United Kingdom stations --------------------------------------- -----do------ 1920Regulations for French stations ------------------------------------------------- _____do______ 1920Regulations for Italian stations-------------------------------------------------- _____do_______ 1920Error in bearings________________________________________________________________ October_____ 1921Simple-type direction finder for shipboard______________________________________ _____do____.__ 1921Article in Radio Service Bulletin for November, 1921, amplified___ December___ 1921

` - 22 _ RADIO SERVICE BULLETIN

INDEX OF REGULATIONS AND MISCELLANEOUS ARTICLES APPEARING IN THE RADIO.r. :,' . SERVICE BULLETIN, YEARS '1920 TO 1931-continued

Subject Month Year

Conferences and conventions:China and Venezuela adhere to International Radio Convention, 1912__________ December___ 1920Paris Technical Conference---------------- .------------------------------------ November__ 1921First United States National Radio Conference_________________________________ March___=__ 1922Report of first United States National Radio Conference________________________ May________ 1922Report of second United States National Radio Conference_____________________ April________ 1923Use ofkilocycles in radio-introduced at second National Radio Conference_____ August______ 1923New York Conference recommends discontinuance of450 meters and addition of February___ 1924706 meters for ships. '

New York Conference on radiating receiving sets-------------------------------- _____do_______ 1924Third National Radio Conference called________________________________________ September__ 1924Interference from harmonics (third National Radio Conference)_________________ December___ 1924Increase power for broadcasting stations (third National Radio Conference)_____ _____do_______ 1924Excerpts from proceedings of the fourth National Radio Conference____________: February___ 1926Finland and French Guiana adhere to International Radio Conference__________ April________ 1927Cross index of article numbers oftheInternational Radio Telegraph Convention_ August______ 1928

Designating letters :To be used for designating company controlling station______________________ January_____ 1921Letter "F"assigned to Federal Telegraph Co___________________________________ _____do_______ 1921

Distress calls :Vessels should annul such calls when assistance is no longer needed___________ _____do_______ 1920Howto send for Coast Guard vessels____________________________________________ _____do______ 1923British departments will notrender assistance to vessels sendingprivatemessages_ July_________ 1929

Equipment:Improper use of storage battery_________________________________________________ September__ 1920Ships carry spare parts, par. 9, Laws and Regulations, edition Aug. 15, 1919, October_____ 1920amended.

Executive orders : Executive Order No . 3228, Feb. 13 1920, returning to owners March______ 1920stations taken by United States Navy during World Warunder Executive ordersof Apr. 6 and Apr. 30, 1917.

Experimental stations :Using 300 and 600 meters for purposes other than allowed under pars. 42 and 44, December___ 1921Aug. 15, 1919, edition, Radio Laws and Regulations .

List of Cuban___________________________________________________________________ October_____ 1927Do__________________________________________________________________________ August______ 1929

Federal Radio Commission:General orders-see under.Act continuing for 1 year------------------------------------------------------- A rIL______- 1928

Do__________________________________________________________________________ arch______ 1929Index of General Orders up to No . 83, January, 1930-------- --------------____ January___ 1930

Field service :Eighth district headquarters transferred from Cleveland to . Detroit---------- October_____ 1919

June________ 1920Savannah, fourth district closed, work performed by Baltimore (third district)_ -----do----- 1920List of radio districts____________________________________________________________ February___ 1928Office opened in Buffalo, N. Y___________________________________________Ap ill________ 1928Alabama transferred to fourth district___________________________________________ 1928List of radio districts_______________________________-________________-___--__ _____do_______ 1929Dallas (Tex.) and Denver (Colo.) offices opened________________________________ November__ 1929Portland (Oreg.) office opened___________________________________________________ August______ 1930

Foreign country regulations :Sweden-foreign ships prohibited from transmitting import____________:________ November__ 1922Ecuadorian decree regarding installations_______________________________________ February___ 1924Use of radio in British harbors by foreign naval stations_________________________ March______ 1924British wireless act------------------------------------------------------------- April________ 1924British radio regulations___________________________________________-______-___ _____do_______ 1924Use of radio by foreign war vessels in South African waters______________________ November__ 1924Use of radio by foreign warships in Grecian waters--------------------------___ April______ 1925Use of300 and 450 meters restricted by Newfoundland___________________________ October_____ 1925Use of radio within territorial waters of Finland_________________________________ March__-__ 1927Use of radio prohibited in ports of Spain________________________________________ July___r~__ 1927Use of radio in Peruvian ports__________________________________________________ December___ 1927Vessels clearing Chilean ports required to be equipped with radio transmitters__ January_____ 1928Health regulations governing vessels equipped with radio entering ports of August______ 1928Australia .

Use of transmitters on merchant ships in harbors of the United Kingdom_______ _____do______ 1930France :

Radio-compass station regulations---------------------------------------____ _____do-__-_ 1920Watch hours on French vessels------------------------------------------ May------- 1921Paris Technical Conference ------------------------------------------- November__ 1921Regulations regarding use of radio in French waters---------------------__----- October_____ 1925

Frequencies:Normal wavelength (600 meters) to be used_____________________________________ September__ 1920860 and 485 meters for broadcasting concerts, crop and weather reports, respeo- January____ 1922

tively.400-meter wave for class Bbroadcasting stations_________________________________ September__ 1922360-meter wave for class Cbroadcasting stations------------------------------__ May________ 1923New York Conference recommends discontinuance of 450 meters by ships__-___ February___ , 1924450 meters not to be used for communication with stations in United States_____ May 199.4Use of 300 and 450 meters restricted___.________._____._____ ._ ._ .___._ .___________ ~___do_____ 1925

RADIO SERVICE BULLETIN 23INDEX OF REGULATIONS AND MISCELLANEOUS ARTICLES APPEARING IN THE RADIO

SERVICE BULLETIN, YEARS 1920 TO 1931-continued

Subject Month Year

Frequencies-Continued.300, 600, and 706 meters discontinued in lieu of 715 and 875 meters by ships and June________ 1925land stations on the Great Lakes.

Use of 300 and 450 meters not to be used within range of German coast stations__ July--------- 1925Useof300and 450meters prohibited within 250milesof Great Britainand United October_____ 1925States.

Provisional regulations for the conduct of long, continuous wave ship and shore February___ 1928commercial communication between certain countries.

List of high-frequency channels allocated to commercial stations_________________ August______ 1928Prague broadcasting frequency plan--__----------------------------------------- May________ 1929Prague broadcasting frequency plan revised----------------------_-_------------ August______ 1929

Germany: 300 and 450 meters not to be used within range of coast stations ---------- July_________ 1925Great Britain :

War-time restrictions regarding stations in Mediterranean Sea___________________ October_____ 1919Newwireless act________________________________________________________________ _____do_______ 1920Act effective Dec. 1, 1920, regarding vessels of 1,600 gross tons or over while in _____do_______ 1920United Kingdom ports.

Hours of watch on ships---------------------------------------------------------

November__ 1920Regulations regarding use of radio by merchant vessels in harbors of the United August______ 1925Kingdom.

Regulations regarding use of radio by foreign warships in port ----------_-------- September__ 1925Use of 300 and450 meters prohibitedwithin 250 milesof Great Britain and United October_____ 1925

States coasts .Great Lakes: 300, 600, and 706 meters discontinued in lieu of 715 and 875 meters by June-------- 1925ships and land stations on the Great Lakes.

Hours:Watch hours for Italian vessels__________________________________________________ October_____ 1920Watch hours for British vessels__------------------------------------------------ November__ 1920Watch hours for United States Shipping Board vessels__________________________ December___ 1920Watch hours for French vessels_________________________________________________ May________ 1920

Important events in radio:List of-

1827-1924_______________ .____________________________________________________ March______ 19241827-1925____________-________________________________________-___ .__________ December___ 19251827-1926______________________________________________ ._____________________ _____do_______ 19261827-1927__________________________________________________________________._ ---,-do------- 19271827-1928____________________________________________________________________ -----do------- 1928

Independent Radio Telegraph Co . :Ship station rate for certain vessels reduced------------------------------------- May-_------ 1920Rate for New York station------------------------------------------------------ September__ 1920Ship station rate increased---------------_-------------------------------------- December___ 1921Purchased by Radio Corporation ofAmerica------------------------------------ January_____ 1928

Inspector (radio) :Civil service examination_______________________________ ._______________________ -----do....... 1923Title changed to supervisor of radio_-------------------------------------------- April________ 1923Interdepartment Advisory Committee organized-------------------------------- July_________ 1922

Interference :Regulations regarding licensed amateur transmitters must be inductively coup- October_____ 1919pled; regulations 3 and 4, act of Aug. 13, 1912, must be observed .

Restrictions on special amateur stations-stations not capable of adjustment on April________ 1921200-meter wave.

Investigation of interference caused by a Cottrell electric precipitator____________ June________ 1924Investigation of power-line interference-----------------------------------------______do_______ 1924Interference from electrical precipitators----------------------------------------- August______ 1924Interference from harmonics of broadcasting stations____________________________ December_ 1924New York conference on radiating receiving sets _-------_----------------------- February___ 1924Interference from harmonics (third National Radio Conference)_________________ December___ 1924

International Radio Telegraph Co. :Ship-to-shore rate reduced to 6 centsper word forInternational Radio Telegraph May________ 1920stations.

Rates for Newport, New London, andNewYork_______________________________ September__ 1920Rate for Cape May, N.J-------------------------------------------------------- November__ 1920

Italy:Coast stations opened on Aug. 15,1919------------------------------------------ October___ 1919Passenger vessels over 1,600 tons to be equipped_________________________________ February___ 1921

Key to radio room required to be left on shipboard____________________________-_____ June-------- 1920Legislation:

Joint Resolution No. 48, Sixty-sixth Congress (S .1 .170), authorizingoperation of July_ _______ 1920Government stations for use of general public and for other purposes.

Joint Resolution No . 48, June 5, 1920, amended (H . J. Res. 7), Sixty-seventh -----do------ 1923Congress, Apr. 14, 1922 .

Joint Resolution No . 47, Dec. 8, 1926, limiting time for which station license may December__ _ 1926be granted.

Law of the Philippine Islands-------------------------------- ---------- -------- February___ 1927Radio act of 1910, as amended 1912______________________________________ :_______ Jul 1927

Do_-__:____________________________________-___________________________1929____ MDo___________________________________________.__________________________ ____ January__.1930

24* RADIO SERVICE BULLETIN

INDEX OF REGULATIONS AND MISCELLANEOUS ARTICLES APPEARING IN THE RADIOSERVICE BULLETIN, YEARS 1920 TO 1931-continued

Subject Month Year

Licenses :Assignment of call not authority for operation of stations other than ship or April------- 1920

amateur.Do____________________________________________________________ May1920

Ship and amateur stations mayoperate pending action upon formal applica- -__-do------- 1920tion-par . 86, Aug. 15, 1919, edition of Radio Laws and Regulations, amended.

Stations not to operate until authorized-par . 86, Aug. 15, 1919, edition of June-------- 1921Radio Laws and Regulations, amended.

Marconi Co. : Radio Corporation of America operating and controlling all stations February___ 1920formerly held by Marconi Co

Market reports:Broadcasting schedule_______.______________________________ .___________________ November__ 1921

Do_______--_____________________-_______------__________--__-__-_-__--_ July---- 1922Measurements : Some experimental radio field intensity measurements and obser- March______ 1927vations.

Medical advice :Seamen's Church Institute station in NewYork________________________________ November__ 1920For ships at sea by United Fruit Co .'s stations---------------------------------- ----do______ 1922List of marine hospitals_________________-_--___-___________-_____ ._-_-_-_-______ February___ 1925Radio-Medical Consultation Service established in Belgium--------------------- December___ 1927Furnished ships by Tropical Radio Telegraph Co. and affiliated stations-------- February___ 1929Furnished by British stations --------------------------------------------------- ____do______ 1929Furnished by Ostend, Belgium----------------------------------------------- ._ May-------- 1929Furnished by Radio Corporation of America stations___________________________ November__ 1929Furnished by Swedish stations-------------------------------------------------- April________ 1930Furnished by British stations --------------------------------------------------- August______ 1930

Navy Department :Executive Order No . 3228, Feb. 13 1920, returning to owners stations taken by March------ 1920United States Navy during World Warunder Executive orders of Apr. 6 andApr. 30, 1917.

Joint Resolution No. 48, Sixty-sixth Congress (S . J. Res. 170)forauthorizing oper- July------ ___ 1920

ation of Government stations for use of general public and other purposes .Rate changed et Bar Harbor station--------------------------------------------- December___ 1921Black Sea-Constantinople-ship station (NTTX) located in------------------- July--------- 1922Joint Resolution No . 48, June 5, 1920, amended (H . J. Res. 7), Sixty-seventh -----do_______ 1923Congress, Apr. 14, 1922 .

International Radio Accounting Section transferred from Navy Department to August______ 1924Department of Commerce.

List of Marine hospitals furnishing medical advice------- February--_ 19:5Rates at land stations increased-------------------------- November- 1928

Operator licenses and regulations:Amateur-

First-grade license regarding code test, etc.-Radio Laws and Regulations, August ------ 1919ediJuly 27, 1914, pars . 122 and 126 amended Dec. 20, 1918 .

Extra first-class operator's license reestablished------------------------------ July--------- 1928Commercial-

First and second grade license regarding code test-Radio Laws and Regu- August______ 1919lations, edition July 27, 1914, par. 126 amended Dec. 20, 1918.

Operators holding emergency licenses or temporary permits should take September__ 1919examination.

Duplicate licenses not to be issued for 30days afterloss of original is reported_ February___ 1920List of lost licenses_______-_--------______-_______-_-----_-___________-____-_ March______ 1920Operators who fall required to wait 3 months before taking another exami- May________ 1920nation .

Licenses after June 30, 1921, will certify to efficiency in radio communication March_ _____ 1921and duration and quality of service.

License may be renewed upon 12 months' satisfactory service during 2-year May________ 1921license period .

Third class established_____________________________________________________ June________ 1930Cargo-

Operator's regulations amended; must be able to distinguish S O S calls- November-_ 1920par. 111, Laws and Regulations, edition Aug. 15, 1919, amendedNov. 1,1920.

Experiment and instruction grade, par. 119, Aug. 15, 1919, edition of Radio May________ 1920Laws and Regulations, amended.

Any or all classes-Operators who fail to pass examination required to wait 3 months before -----do------ 1920taking another examination.

Transmitting test required-------------------------------------------------- June-------- 1920Statistics showing number years 1913-1923, inclusive--------------------_____ February___ 1923Amended operator regulations______________________ .____________________ ___ July-------- 1927

Do___-____-______________________________-______________________________ December___ 1927Do_____-____________________________________________________-_--______-- January_____ 1928

Service of operators at foreign stations not considered in the issuance of March------ 1928renewal licenses .

Examination of operators in Canal Zone discontinued_______________________ June-------- 1928Revised operator's regulations----------------------------------------------- December___ 1928

Do________________________________________-___________________________-_ September__ 1929Do___-____________________________________________________-________ .__-_ January__ 1931

RADIO SERVICE BULLETIN 25INDEX OF REGULATIONS AND MISCELLANEOUS ARTICLES APPEARING IN THE RADIO

SERVICE BULLETIN, YEARS 1920 TO 1931-continued

Subject Month Year

Operators:Broadcast�

Commercial second class or higher required for operation broadcast station__ January__1922Regulations amended_______________________________________________________ -----do.----- 1929

Do______________________________________________________________________ June________ 1929Telephone, regulations amended________________________________________________ _____do______ 1929Visual broadcasting, regulations amended_______________________________________ July________ 1929Airplane, procedure for obtaining---------------------------------------- ------ June________ 1930

Philippine Islands :Radio law_______________________________________________________________________ February___ 1927Vessels required to be equipped with radio______________________________________ October_____ 1928

Ports, use of radio while in, not to be used except in urgent cases and then only on September__ 1919300 and 450 meters .

Press traffic: Repetition should be avoided__________________________________________ July________ 1920Radio Division : Transferred from Bureau of Navigation to office of Secretary of March______ 1927Commerce .

Rates:Effective Apr. 1, 1920, North and South American and transoceanic service rates April________ 1920

of Radio Corporation of America vessels will be 4 cents per word .No relay charge by vessels controlled by International Radio Telegraph Co_____ -----do_______ 1920

Ship-to-shore rate reduced to 6 cents per word for International Radio Telegraph May________ 1920o. stations.

Ship station rate for certain vessels controlled by Independent Wireless Tele- -----do_______ 1920graph Co . increased to 8 cents.

International Radio Telegraph Co . at Newport, New London, andNewYork__ September__ 1920Independent Wireless Telegraph Co. station at New York______________________ _____do_______ 1920International Radio Telegraph Co . rate at Cape May___________________________ November__ 1920Radio Corporation of America New York station increased______________________ February___ 1921Southern Pacific Co . new ship rate 8 cents______________________________________ April________ 1921Radio Corporation of America new ship rate for North and South America serv- -----do_______ 1921ice (8 cents) .

Mutual Telephone Co__________________________________________________________ June________ 1921United States Shipping Board increased_________________________________________ November__ 1921International Wireless Telegraph Co . increased ship----------------------------- December___ 1921Bar Harbor naval station changed_______________________________________________ _____do_______ 19213-cent rate applicable to certain vessels increased to 10 cents_____________________ April________ 1922Instructions for handling traffic accounts________________________________________ June________ 1922Rates at United States Army and United States Navy land stations increased__ November__ 1928

Radio Corporation of America, R. C. A. Communications, Radiomarine CorporationofAmerica:New York station rate increased________________________________________________ February___ 1921Coast rate for certain vessels increased from 3 cents to 10 cents per word_________ April________ 1922

Resolutions:Joint Resolution No . 48, Sixty-sixth Congress (S . J. Res. 170), authorizing opera- July_________ 1920tion of Government stations for use of general public and for other purposes .

Joint Resolution No . 48,June 5, 1920, amended (H . J. Res. 7), Sixty-seventh Con- _____do_______ 1923grass, Apr. 14, 1922.

Joint Resolution No . 47, Dec. 8, 1926,limiting time for which stationlicenses may December___ 1920be granted.

Shipping Board (United States) :lours ofwatch for vessels------------------------------------------------------- -----do------ 1920Rates increased_________________________________________________________________ November__ 1921

Ships: Stations may operate pending action upon application for license_____________ May________ 1920Statistics :

Number of operators and stations-years 1913-1923 ------------------------------ February--- 1923Do________________________________________________________________-_________ _____do______ 1931

Time: Relation between Greenwich mean time and standard times in use in the September_ _ 1928United States .

Visual broadcasting : Class of operators' licenses required____________________________ July_________ 1929War-time restrictions removed:

United States amateurs removed Oct. 1, 1919____________________________________ October_____ 1919Canadian removed July 24,1919_________________________________________________ _____do______ 1919British in Mediterranean removed______________________________________________ _____do______ 1919All commercial stations taken by United States Navy under Executive orders March______ 1920Apr. 16 and 30, 1917, returned to owners.

Executive Order No . 3228, Feb. 13, 1920, returning stations to owners____________ _____do______ 1920List of land stations reopened --------------------------------------------------- _____do______ 1920

Do-_____________________-___________________________________________________ April________ 1920Weather reports :

Radiographic code, United States Weather Bureau______________________________ May________ 1921Penalty for counterfeit weather forecasts________________________________________ January_____ 1922Regulations pertaining tobroadcasting of weather, crop, and market information_ April________ 1922From Swan Island, Caribbean Sea---------------------------------------------- October_____ 1922

'Wavelength. (See Frequencies.)