U. S. DEPARTMENT OF COMMERCE
R. P. LAMONT, Secretary
RADIO DIVISION
W. D. TERRELL, Chief
ANNUAL REPORT
OF THE
CHIEF OF RADIO DIVISION
TO THE
SECRETARY OF COMMERCE
FOR THE
FISCAL YEAR ENDED JUNE 30, 1930
Federal Communications Commission Library
UNITED STATES
GOVERNMENT PRINTING OFFICE
WASHINGTON : 1930
For sole by the Superintendent of Documents, Washington, D. C. - -
	
- Price 5 cents
CONTENTS
Page
Legislation---------__----__ :__---_ .,-------__-_-___-__-------__-__ 1Radio inspection service -------------------------------------------
	
1
Radio test cars--------------------------------------------------- 2Purchase of additional cars ------------------------------------- 2Mobile standards on radio test cars------------------------------ ' 3Field-strength work------------------------------------------- 3Monitoring broadcasting stations ---------------------------------_-- 3
Constant frequency monitoring station------------------------------- 4Secondary standards of frequency----------------------------------- 6Radio for aviation---------------------:--------------------------- 6Radiobeacons and radio compasses---------------------------------- 7Automatic alarm signal device-------------------------------------- 7Radio communication--------------------------------------------- 7Police radio------------------------------------------------------ 7Amateurs----__-----__-------__-----__-___---___---------------__ 8Personnel----------------------------------- :-------------------- 9
International conferences ------------------------------------------- 9International radio accounting-------------------------------------- 9Statistical tables--------------------------------------------------
1
Scope of work------------------------------------------------ 11Detailed work of the radio service ------------------------------- 11Operators licensed --------------------------------------------- 12Field activities ------------------------------------------------ 12Cost of radio service------------------------------------------- 15
RADIO DIVISION
DEPARTMENT OF COMMERCE,
RADIO DIVISION,
Washington, July 1, 1930.
The honorable the SECRETARY OF COMMERCE.
DEAR MR. SECRETARY : In response to your request I furnish the
following condensed report of the work of the radio division during
the past fiscal year, including references to related developments
which have taken place during that period .
LEGISLATION
In an act approved December 18, 1929, Congress extended the
administrative control of the Federal Radio Commission over radio
communication until such time as may otherwise be provided for by
law.
Senate Joint Resolution 176 was introduced on May 12, 1930,
providing for the transfer of the functions of the radio division of
the Department of Commerce to the Federal Radio Commission .
This resolution was passed by the Senate . A favorable report was
made on the resolution by the Merchant Marine and FisheriesCommittee of the House, but no further action has been taken on
the measure.House Joint Resolution 337 was introduced on May 19, 1930, and
referred to the Committee on Merchant Marine and Fisheries.
	
No
report was made on the resolution by the committee. This resolu-
tion provided for the transfer of the functions of the radio division
of the Department of Commerce to the Federal Radio Commission .
House bill 12948, transferring the functions of the Federal Radio
Commission to the radio division of the Department of Commerce,
was introduced June 13, 1930, and referred to the Committee onMerchant Marine and Fisheries.
On April 18, 1929, Senate bill 6 was introduced . This bill provides
for the regulation of the transmission of intelligence by wire and
wireless ; the creation of a commission on communications to take
over the present duties of the Federal Radio Commission, the radio
division of the Department of Commerce, and related duties now
under the jurisdiction of the Interstate Commerce Commission.
This measure was referred to the Committee on Interstate Commerce,
where extensive hearings were held . As a result of these hearings
the provisions of this bill are now being revised.
RADIO INSPECTION SERVICE
Although greater demands are made upon this service each yearand the surveys require more time because of the larger and more
complicated radio installations on ships, the percentage of inspec-
tions as compared with clearances has not diminished . In 1926
2 REPORT TO THE SECRETARY OF COMMERCE
there were 13,009 clearances and 9,197 inspections. In 1929 therewere 15,023 clearances and 10,715 inspections. In 1930 there were15,595 clearances and 11,334 inspections. As the radio installationson the ships included in the above figures are required by law as asafeguard against loss of life, a larger percentage of inspections shouldbe made.
	
The estimates for the 1932 appropriation will provide forthe establishment of inspection offices at the following ports : Miami,Fla. ; Savannah, Ga. ; San Juan, P. R . ; and Galveston, Tex., fromwhich ports a considerable number of ships are clearing withoutinspection . During the last fiscal year new offices were establishedat Portland, Oreg., and Denver, Colo . It was planned to establishnew offices in Hawaii and Alaska this year, but this may not bepossible because of the increasing work at existing offices.Of the 2,173 American vessels equipped with radio, only about 10per cent of them come under the provisions of existing law, theremaining 90 per cent, which are voluntarily equipped, should receivemore inspectional attention . Inspections developed 382 defects inthe radio installations on ships during the year and these wereremedied before the vessels departed . During the previous yearthere were 335 such defects reported .Examinations were given 5,363 applicants for commercial operators"licenses and 3,993 applicants for amateur operators' licenses as com-pared with 3,477 commercial operators and 3,173 amateur operatorsduring the previous year. There were 1,287 inspections made of shipstations for license as compared with 1,102 the previous year . Inspec-tion of land stations during the past two years increased from 1,154to 1,897. Inspections were made of 251 amateur stations as com-pared with 229 the previous year.Undoubtedly more attention should be given to the inspection ofbroadcasting and other stations on land . Such inspections would de-velop much information of value to the Federal Radio Commissionto guide it in determining its action on applications for renewallicenses, hearings, etc. Many of the unlicensed stations reported tobe in operation would be discovered during these inspections, andother violations might be detected . This extension of activity willnecessitate increased personnel . It is obviously not possible toaccomplish this with the present force, which has worked 10,003 hoursovertime during the past year .During the year 1929, 1,075 inspection trips were made and 372cities visited, while in 1930, 1,577 inspection trips were made and534 cities visited .
RADIO TEST CARS
PURCHASE OF ADDITIONAL CARS
Orders have been placed for two additional test cars for use inthe Boston and Seattle districts . When they are delivered eachdistrict, with the exception of New York, will be supplied with atest car. As a result, much radio-inspection work which would beimpossible of accomplishment can be performed expeditiously andefficiently. Some years ago almost all of the radio-inspection workwas centered around the large seaports . To-day it extends to everycity of importance and many of the small towns throughout thecountry. This wide distribution of activity necessarily requires a
RADIO DIVISION 3
larger force of inspectors, better traveling facilities, and transporta-tion of more apparatus . The use of test cars materially aids incoping with the increasing demands made upon the division.
MOBILE STANDARDS ON RADIO TEST CARS
Owing to the large number of broadcast and other stations sharingchannels of operation throughout the United States, very seriousheterodyne interference is constantly experienced. With manystations operating on the same channel, it is obviously not possibleto make measurements of frequency at remote points on any of thesestations . In order to handle such a situation, the six radio test carsin service are being equipped ped with mobile secondary standards offrequency . The cars
	
travel continually through the districtsmeasuring the frequencies of the stations that are of low power andare on heterodyne channels . In this way it is hoped to reducematerially the interference experienced on national and regionalchannels in the broadcast band, and to make sure that stationsremain within their assignment .It is expected that all of the mobile units will have been installedand will be in operation by November 1 .
FIELD-STRENGTH WORK
The radio test cars are equipped with field-strength measuringapparatus. During the past year there were a number of field-strength studies made on radio broadcast and other types of trans-mitting stations . These studies were made to determine the reliableservice area about the station and whether the station was using theamount of power authorized by the Federal Radio Commission.With this apparatus it is possible to measure the power of a trans-mitter without going to the station to make an inspection .During the past year anumber of studies were made with the field-strength sets on the test cars to determine the ratio of signal strengthbetween harmonics and the assigned fundamental frequency . Severalsuch studies were made for Government agencies to determinewhether the transmitting apparatus they were planning to purchasecomplied with the specifications covering the amount of permissibleharmonic energy radiated .It is believed that if the power of broadcast stations were assignedon the basis of field-strength studies considerable good would resultand in many cases the power of stationsmight be increased or reducedwith beneficial results to the public. During the coming fiscal yearit is planned to survey many of the broadcast stations and to makemeasurements of parasitic radiations which are known to be causingserious interference with high-frequency stations .
MONITORING BROADCASTING STATIONS
Monitoring work during the past year has been confined almostentirely to broadcasting stations . The apparatus in use, which wasdesigned and built by menin the service, has a limited frequency rangewhich does not extend much above or below the broadcasting band-550 to 1,500 kilocycles . During the year 45,695 frequency measure-ments were made. Of this number 44,923 were of broadcasting
REPORT TO THE SECRETARY OF COMMERCE
stations, 302 of stations other than broadcasting, and 470 of stationsin foreign countries. The number of stations involved in thesemeasurements were 380 broadcasting, 174 other than broadcasting,and 30 foreign stations . There were 1,020 measurements madeshowing deviations of 500 cycles or more from the frequency assignedto the stations . Of this number there were 344 measurements show-ing deviations from 1,000 cycles to 5,000 cycles, 16 measurementsshowing deviations from 5,000 cycles to 10,000 cycles, and 22 meas-urements showing 10,000 cycles or above.
	
Last year 22,450 measure-ments were made and of this number there were 2,451 deviations of500 cycles or more . This marked improvement in frequency stabilityis evidence of the efforts being made by station operators to improvethe efficiencymonitoringtheir stations in this respect,
together with the
_increased work done by the field force.During the coming year the new monitoring apparatus will be inuse. Then it will be possible to measure all the usable frequenciesand a much greater number of stations . To get full benefit of thisnew apparatus and to meet the demands made for measurements ofcommercial and Government stations, a considerable increase in per-sonnel is essential.
CONSTANT-FREQUENCY MONITORING STATION
For a number of years supervisors of radio have been seriouslyhandicapped in the work of enforcing the radio-communication laws,and in many cases have been unable to carry out the requests of theFederal Radio Commission, due to the lack of proper apparatus, ordue to the lack of apparatus capable of measuring the frequencies oftransmitting stations with a high degree of accuracy . With the ap-paratus in use in the past there was always some doubt as to justwhat degree of accuracy of measurement was obtained, and it wasdifficult, if not impossible, for the various offices to check their meas-urements with one another. This condition led to a survey by thesupervisor of radio at Detroit, Mich., of the methods used in makinghighly accurate frequency measurements . The'views of many of theforemost radio engineers were obtained .It was determined that the proper method to pursue in monitoringall classes of radio-transmitting stations in the United States and itspossessions was to erect, somewhere in the approximate geographiccenter of the country, buildings in which to house the delicatefrequency-measuring apparatus, and the sensitive radio receivers .It was essential that this site be well removed from manufacturingcenters, telephone and telegraph lines, high-voltage transmission lines,and other possible sources of interference with reception. A site ap-proximately 7 miles west of Grand Island, Nebr., comprising 50 acresof land in the form of a square, was finally obtained, without cost tothe Government . The selection of this site was made only aftercareful investigation of reception conditions in the States of Kansas,Missouri, Nebraska, Iowa, and Illinois . At this location there islittle or no man-made interference, and stations in foreign countries,as well as transmitting stations in continental United States, wereregularly received without difficulty .The 50-acre site selected is a quarter of a mile north of the LincolnHighway, on level, sandy, prairie land . There are no telephone,
RADIO DIVISION 5
telegraph, railroads, power lines, or residences within 3 miles of thesite .In addition to the two buildings it was necessary to install asewage-disposal system, a water-supply system, and an electric-lightplant. Fear was felt that through use of local power lines interferencefrom devices operating on the power line many miles away would beconducted onto the reservation and picked up by the receivers .
	
Ininvestigating many of the complaints in 1927 it was found that in-ductive interference on high-voltage power lines was frequently carried75 or 100 miles. With a local power plant and the placing of all powerand telephone cables underground adequate protection against thistype of interference is assured and the station is entirely independentof any outside source of power.To be assured of 24-hour reception every month in the year specialantennae were constructed forthe reception of all radio stations oper-atin between the frequencies of 60,000 and 10 kilocycles . Thesespecial antennae were necessary so that measurements could be madewhen static during the summer season was especially severe, and when,with an ordinary type of antennae it would be impossible to do fre-quency-measuring work . Four antennae of the multiple-doublet ty ewere erected on the reservation and cover the high-frequency bans .This type of antenna is especially directive . They were so arrangedthat two of them point to London, England, for use in the receptionof high-frequency stations in eastern United States and Europe, andtwo similar antennae are pointed to Porto Allegro, South America, forthe interception of high-frequency stations in southern United States,Central America, West Indies, and South America.For the reception of broadcast stations and other services operatingwithin the intermediate-frequency bands, a special antenna of thedirective type, known as a "Beverage" was erected. This antennapoints to New York City and is intended to receive broadcast andother stations in the United States . Later it is hoped that a similartype of antenna can be erected pointing in a westerly direction to$an Francisco for the interception of broadcasting and other stationson the west coast. In addition to the antennae just described, foursingle doublets, one vertical, and one general purpose antennae wereconstructed for general all-around reception. It was not intendedthat they would have any highly directive properties . Theseantennae are for the interception of high-frequency stations. For theinterception of signals on frequencies between 200 and 10 kilocyclestwo large loops, at right angles, 250 feet long and 40 feet high, on aside, were erected. With this loop it is intended that reception oflow-frequency stations throughout the United States and the worldwill be possible .All antennae referred to above are suspended on 60-foot cedar poles,and all-excepting the loop andgeneral-purpose antennae--are locateda considerable distance from the buildings, out in the open . Signalsare brought from these antennae to receivers through long, 4-wiretransmission lines which have been especially constructed with greatcare and precision .Temporary power facilities in the form of three 2-kilowatt Kohlerlighting plants were arranged for with the airways division of theBureau of Lighthouses . With this temporary power equipment inDosition for service, it was possible to begin the installation of the radio
6 REPORT TO THE SECRETARY OF COMMERCE
receivers, storage batteries, standards of frequency, and other equip-ment . This work has been pressed as rapidly as possible, and thereceiving equipment is now 80 per cent installed.The apparatus installed consists of one standard of frequency hav-ing an accuracy of one part in a million, and one secondary standardhaving an accuracy of one part in a hundred thousand . In additionto these two standards there are, at the present time, a total of fivereceivers.
	
Two of these receivers operate on a frequency of . 30,000to 1,500 kilocycles, two operate on frequencies from 1,500 to 100 kilo-cycles, and one receiver operates on frequencies from 100 to 10 kilo-cycles . With these receivers it will be possible to measure all of theusable radio frequencies in the spectrum. °During tests of the apparatus while being installed, over 300broadcast stations were received, as well as a number of other servicesin continental United States . In addition to this, reception of sta-tions in Chile, Canada, Cuba, Portugal, France, England, PhilippineIslands, Hawaii, Argentine, Peru, Netherlands, Brazil, Panama, .Costa Rica, Nova Scotia, Russia, and many other places in the worldare regularly recorded .The monitoring of stations operating on the frequencies whichcan be measured by this station will cover the following classes ofservice : Transoceanic ; telegraph and telephone; marine, operatingon high, low, and intermediate frequencies ; marine coastal; aircraft ;aircraft ground stations ; various point-to-point services ; broad-casting; amateur ; television ; and facsimile.The two buildings are of brick and concrete construction, and werefinished and finally accepted by the Government in March of this year.Efforts are being made to have the station in full operation byNovember 15, 1930 .
SECONDARY STANDARDS OF FREQUENCY
To supplement the frequency-measuring work to be done by thestation at Grand Island, Nebr., nine secondary standards of fre-quency stations are being installed at the following places : Boston,Mass. ; Baltimore, Md. ; Atlanta, Ga. ; New Orleans, La. ; Los Angelesand San Francisco, Calif. ; Portland, Oreg . ; Chicago, Ill. ; and Detroit,Mich. While these secondary standards of frequency will haveneither the range nor the accuracy of the station at Grand Island,with them it will be possible to monitor or measure the frequency ofmany of the stations in those particular areas.The apparatus at the office of the supervisors of radio at Boston,Chicago, and Baltimore are installed and in operation . The installa-tions at Detroit, Atlanta, and New Orleans will be completed withinthe next 60 days, and by November 1 all of the secondary standardinstallations at the places enumerated above will be installed and inoperation.
RADIO FOR AVIATION
During the past year considerable thought has been given to typesof radio apparatus suitable for use on airplanes and the qualificationswhich should be possessed by radio operators on planes .Several of the air transport companies have established and operatetheir own two-way communication service between ground and
RADIO DIVISION	 7
plane along their respective routes . Licenses have been issued to 66aeronautical stations and construction permits have been issued for
23 more which will make 89 aeronautical stations in operation within
a short time . Last year there were 97 planes equipped with apparatus
not including planes of the Army and Navy. Now there are 215planes so equipped .
In order that life may be properly safeguarded the radio apparatuson passenger-carrying planes should receive the same attention as isnow given to the radio equipment on merchant vessels.
RADIOBEACONS AND RADIO COMPASSES
Installation of radiobeacons and radio compasses continues toincrease . There are in operation now 26 radiobeacons on the Atlanticcoast, 18 on the Pacific coast, 7 on the Gulf coast, and 29 on the coastof the Great Lakes, a total increase for the year of 15. In othercountries there are a total of 80 beacons, as compared with 57 theprevious year .
Radiocompasses are now in use on 832 commercial vessels underthe United States flag, an increase of 114 during the year, and onUnited States Government vessels there are now 436 as comparedwith 375 last year, making a total of 1,268 on vessels of the UnitedStates . There are 2,285 foreign vessels so equipped as comparedwith 1,942 last year .
AUTOMATIC ALARM SIGNAL DEVICE
During the year 755 inspections were made of vessels equippedwith automatic alarms which are being used on foreign vessels,mostly British. Reports were made to the division that the devicehad responded 1,210 times to signals not intended to actuate theapparatus.
Last year the Coast Guard purchased two sets of this apparatus.Arrangements are being made to install one of these sets on a vesselon the Great Lakes where it can best be subjected to practical teststo determine its efficiency.
The Radiomarine Corporation is developing an alarm device whichit is hoped will be ready for practical tests on the Great Lakes beforethis year's navigation season closes .
RADIO COMMUNICATION
During the year there has developed an increased demand foradditional radiotelephone facilities both for international commu-nication between this country and Europe and for communication.with ships. The latter is a new service which, according to presentindications, will grow to a considerable extent . Large ocean linersare now being equipped with radiotelephone apparatus as an addi-tional convenience for the ocean traveler . Such equipment providesa means for conversation from ship to ship or ship to home or officeon land . POLICE RADIO
There is an increasing realization of the value of radio as used inconnection with police work, both State and municipal. New York
12963-30-2
S	 REPORT TO THE SECRETARY OF COMMERCE
City obtained a limited commercial station license in 1920 whichauthorized emergency communication with the police-patrol boat.Since early in 1922 the Pennsylvania State Police Department hasmade use of radio for quick point-to-point contact and later broad-casting police information. The Detroit Police Department used abroadcasting station as early as 1922 . Since 1925 Dallas, Tex., hasused a broadcasting station for contact with both the police and firedepartments. In 1929 there were 12 olice-broadcasting stations .There are now 20 such stations license; construction permits havebeen issued for 25 more, and 3 applications for construction permitsare pending.
AMATEURS
After 18 months' operation under the restricted wave bands im-posed by the Washington treaty of 1927, the amateurs are operatingas satisfctorily as could be hoped for, considering the great numberof amateur stations in these narrow bands. This is due, for the mostpart, to improved technical methods and apparatus devised partic-ularly to meet the new conditions . Amateurs show increasing tech-nical skill . Amateur voice transmission on high frequencies wasgiven impetus by the opening of the band from 14,100 to 14,300 kilo-cycles for telephony as well as telegraphy. Numerous stations haveeffected satisfactory international telephony . Many of the betterradiotelegraph stations have been in communication with upwards of70 countries. There is an increasing interest in the investigation ofthe communication possibilities of the ultrahigh frequencies above28,000 kilocycles .Amateurs of the United States have long been noted for theirexcellent self-policing . In this connection it is interesting to notethe establishment of an organized nation-wide, standard-frequencysystem to make available to amateurs, both in this countryand abroad,calibration signals of known frequency, to aid amateur stations inkeeping within their allotted bans. Three stations, transmitting onregular schedules, have been set up in laboratories at South Dart-mouth, Mass., Elgin, Ill., and Los Angeles, Calif. The Elgin andLos Angeles installations are equipped with secondary-frequencystandards checked by the Bureau of Standards ; the South Dart-mouth installation possesses a primary standard . The AmericanRadio Relay League states that all transmissions are accurate tomore than 0 .01 per cent ; measurements of the South Dartmouthtransmissions indicate an accuracy for that station of approximately0.001 per cent . This standard-frequency system is part of a programinstituted by the league for an increased appreciation of frequencyprecision and accuracy of control by amateur operators ; its goodeffects are already apparent .Amateur cooperation with expeditions continued on an increasedscale ; there were also additional instances of cooperation with civilauthorities in local storm emergencies. The pursuit of amateur radiocontinues to constitute a valuable training school far skilled radiopersonnel for industry and the art generally . The amateurs' recordof public service, their spirit of cooperation, and their demonstratednational value have continued to justify the policy of this Govern-ment toward them.
RADIO DIVISION 9
During the year there was an increase of 2,165 amateur stations .This is the largest year's increase since 1922 .
	
Last year there were16,829 licensed amateur radio stations . There are now 18,994 . In1920 there were 5,719 amateur stations .
PERSONNEL
The division's personnel is inadequate to perform promptly andcompletely the duties imposed upon it . For the next fiscal year alarger appropriation is being requested to remedy this condition . Inthe field force there are 9 supervisors, 68 inspectors, and 57 clerksassigned to 20 offices. Estimates for next year contemplate the em-ployment of 9 supervisors, 121 inspectors, and 75 clerks, and theestablishment of 6 additional offices .
INTERNATIONAL CONFERENCES
The International Radiotelegraph Convention of Washington, 1927,established an international technical consultative committee forradio communications for the purpose of studying technical and re-lated questions having reference to these communications . Itsfunction is limited to giving opinions on the questions submitted bythe participating administrations or private enterprises and to whichit has given study. The first meeting of this committee was held atThe Hague, Netherlands, in September, 1929, and was attended byrepresentatives of the United States . Preparations are being madeto submit proposals for consideration at the next conference to beheld at Copenhagen, Denmark, May 26 to June 6, 1931 .The International Radiotelegraph Bureau at Berne, Switzerland,has notified all administrations to prepare propositions concerningthe International Radiotelegraph Convention and the two sets ofregulations (general and additional) annexed thereto, in preparationfor the. conference to be held in Madrid, Spain, in 1932 .
INTERNATIONAL RADIO ACCOUNTING
The activities of the accounting section of the radio division inthe settlement for international radio tolls during the fiscal yearmay be summarized as follows :
Financial operations required to complete activities summarized :Cash balance July 1, 1929_________________________________ $44,519.81Collections during fiscal year of 1930----------------------- 83, 343.26
Total------------------------------------------------- 127,863.07Disbursements during fiscal year of 1930-------------------- 86, 912 24
Cash balance, June 30, 1930--------- __----------------- 40,950.83
Number of accounts handled :On hand July 1,1929------------------------------------- 756Received during year------------------------------------- 924
Total______:__________________________________________ 1,680Settled and cleared--------------------------------------- 1,111
Accounts on hand and unsettled June 30, 1930------------- 569
10 REPORT TO THE SECRETARY OF COMMERCE
It will be noted that while there was a decrease of 176 in the num-ber of accounts received during 1930 . over 1929, there was an increaseof 66 in the number of accounts settled and cleared . Certain coun-tries agreed to combine into single documents accounts which for-merly, without advantage, had been rendered separately . Duringearlier years, delinquent administrations frequently rendered accountscovering as many as 18 or 20 months, but now accounts are submittedwith sufficient regularity to assure that the maximum number ofaccounts received from one country at no time exceeds 12 during theyear, or one for each month's traffic . The increase in the number ofaccounts settled and cleared is due to improved methods which madeit possible to adjust all accounts of long standing .
	
Of the 569 un-settled accounts on hand, 330 are ready for settlement and will havebeen cleared from the records by August 30, 1930 .Very truly yours,
W. D. TERRELL,Chief Radio Division .
STATISTICAL TABLES
Submitted below are statistics covering the division's work.
SCOPE OF WORK
The following table shows the inspection and licensing work per-
formed yearly from 1914 to 1930, inclusive, and the number of persons
employed in the field force :
DETAILEDWORK
The following statement shows the details of the work performedduring the past fiscal year compared with 1929 and the total number
of licensed and Government radio stations:
Americanvessels
Inspections ofAmerican andforeign vessels
Fre-quencymeasure-
Licenses issued
Total
June 30- equip dwith Vol.- Compul-
ments ofAmer-
ican and Commer- Amateur
fieldforce
radio tart'equip- sort'equip- foreign vial open-
Amateurstations opera-
ment ment stations ators tors
1914__--_---__-_- 555 --___---__ 6,484 __---_-___ 339 2,137 1,172 201915_----__---_-____ .__ ..___ . ._._._ . 585 -______--_ 6,152 ______---- 1,653 3,547 3,067 261916-__--____-__-____._____ .______ ._ .. 604 1,111 7,236-_-_-____- 1,278 4,942 4,199 281917 --_____-_-_-_----_- 83G 1,0347,137 __--_--_-_ 1,682 3,741 3,303 281918 --_-------_-___---- 1,478 1,434 5,575 __________ 1,616 __________ _________ 291919___--__----__----_ ._ 2,312 954 5,160 _ _ .___ . 1,645 ____ _ _ ___ _ _ 271920-__-_-___-___-____ .__ .__ ._ ._ ._ 2,808 1,170 5,419 ___--____- 4,652 5,719 6,103 25-451921--_--__-__--_---_--- 2,978 514 5,591 -__------_ 2,722 7,351 6,207 261922 _-__-___--______-_- 2,773 869 6,071 -___-_____ 3,136 9,525 8,920 351923--_-_----___--_____- 2,723 1,124 6,933 -_--__---_ 2,860 7,821 9,908 531924--_-_----_---__--__- 2,741 1,577 7,727 --____-___ 3,370 8,205 9,545 531925___-_---_-__-_-----_ 1,901 1,339 8,603 ___-_--___ 3,215 10,074 8,293 621926-_---___-__---_-__-- 1,954 1,583 9,197 __________ 3,398 8,037 8,140 651927---_--_-_____-_-___- 2,092 1,405 9,330 -_______-- 3,463 7,123 7,275 631928___ ._ ._ .___._ ._.
1929__ . . ... .. .. .__ ._ . . ..
2,1662,213 1,6592,520
9,093
10,715
__________22,450 3,8163,798 12,38612,646 8,3699,490
78
95
1930--__-_----_-_-_-__ . .___ _ .____ ._ 2,173 3,026 11,334 45,695 5,255 18,402 11,541 131
Work of service 1929 1930
Clearances of American and foreign vessels requiredby law to be equip with radio- 15,023 15,595Inspections of radio equipment on American and foreign vessels requ red by law tobe equipped with radio________________________________________________________ 10,715 11.334Inspections of radio equipment on voluntarily equipped vessels_________________ 2,520 3,026American ship radio stations inspected for license ___---______--__--__-_-_--- ________ 1,102 1,287Land stations inspected_____________________________________________________________ 1,154 445Broadcasting stations Inspected ______ 1,452_________________________________________ ._____ ._____Amateur stations inspected_________________________________._______-________ . . . . .__ 229 251Amateur stations licensed___________________________________. ..______ .._ .______ ..___ 12,646 18,402Frequency measurements of American and foreign stations ________________ .___ ._ ..__ 22,450 45,695Commercial operators examined__________ .__ .____________________________ .___ .___--- 3,477 5,363Commercial operators licensed ______ ._______________________.__________ ._________ .__ 3,798 5,255Amateur operators examined________________ ._________________________ ._______-_____ 3,173 3, 993Amateur operators licensed____________________________________________ ._________ .___ 9,490 11,541Defects found upon inspection of ship radio stations where clearance would havebeen in violation of law____________________________________________________ .__ .___ 335 382Licensed and Government radio stations : rAmerican vessels equip pad with radio________________________________ ._________ . 2,213 2,173Experimental, relay broadcasting, visual broadcasting, and technical andtraining-school stations______________________.____ ._______________.____________ 228 391Commercial land stations '____________________________________________________-_ 446 468
Broadcasting stations a________________________________ .____._________.____ .____- 614 612Commercial aircraft stations__ .-_. ._______._ .._.____ ._______ .________.________ .- 97 215Geophysicalstations ,_________________ .__ .___________ .____________-_.____.__ .__. 10616,829
11918,994Amateur stations______________ .__ . .. .__.._ . .____-.__________________.__________- 369 387Government land stations __ .___._.____._ .____________________. .__. ._____________Government ship stations_____________._.____ ._._____._ .________________._____ .. 1,211 1,161
12
	
REPORT TO THE SECRETARY OF COMMERCE
OPERATORS LICENSED
The following table shows the number of radio operators licensedduring the past two years :
Place
First dBost0Outs
Total,
dSecon
NewOutsi
Total,
ah
ThirdBaltio 'OutsPhila
OutsfleeNorfOutsNorf
Total,
FourthAtla
Outs
Total,
Class and grade
Total__ .____________ .___ ._ ._________ ._______________________________
FIELD ACTIVITIES
1929 1930 I Total
Stations inspected Frequency measurements
31
Following is a statement, by districts, of the work performedduring the past fiscal year compared with the previous year :
1 Included In land for 1929 .
2 Only total figures by districts for stations of all classes compiled for 1929, which shows 22,450 measure-
ments and 2,451 deviations .
p- U . B . otherequi U. s . broadcast than broad- . Foreign
of inspection (city or y casttown) de lice re de ns re- de nns re- de-for li su ur u ts
Sh !p Shi B Ama M m D M m D M W D
istrict:on, Mass .__---------- 1,232 172 106 2 1 3 2,798 48 84 527 30 6 7 8ids Boston office ----- ------ 13 12 16 51 30 4,109 32 51 99 34 39 82 11 12
Total,1930------------ 1,232 185 118 18 62 33 6,907 80 135 156 61 69 88 18 201929------------------ 1,313 75 07 14 (1) 44 (2) _____ (1) __ :_ ____ (r) ____ ----
district:York, N. Y--------- 3,868 347 389 14 23 2 8,307 383 458 9 7 9 1 1 1ide New York office_ 296-59 60 24--_ _ __ -- ~____ ____
9otal, 1930 ------------ 4,164 406 449 22 47 2 8, 307 38'd 458 7 9 1 1 1
1929------------------ 3,813 458 439 b (t) _23 (1) _____ ____ : (3) ____ ___
district :more, Md----------- 448 25 9 1 11 3 4,536 7 ____ _ .__ _-__ 143 53 87ids Baltimore office__ ------ _____ ----- 10 30 6 ______ ._--- ----- ___. ____ ____ ____ ____ ____
ids Philadelphia of-delphia Pa.____ .__ . 531 10 b 5 88 8 ______ _____ _____
____ ____ ____ ____ _ .__ ----
_____________ .______ . 7 1 3 6 27 12 ______ _:___ ----- ____ ___- __ ._ ._ ._ ____ ----olk, Va-------------- 746 1 9 1 4 3 ______ _____ ____: ____ ___- ____ ____ ____ ----ids Norfolk office ------ _ _ _ 2 ____ ------ _ _ _ -.
Total, 1930------------ 1,734 48 26 23 162 32 4,b36 .7089- .__ ____ 143 53 871929------------------ 1,539 80 49 21 (1) 20 ( 3 )
-----
_____ __ ____ 0) ____ ----
district :nta, Ga------------__ ----- 1,0861,086 45 71 1 1 1 11 7 12Ids Atlanta office__ ._ 476 42 3 4 __ ._ ____ ____ . .__ ____ ----
otal, 1930----------- 2 ----- 6 52 6 1 128 48 75 1 1 1 11 7 121929------------------- 46 ----- 41 ----- ----- (-) ---- ---- (-) ---- ----Tota _ _ ,128 75 1461 4 _____ _____ _____ r ____ ____ r ____
Commercial extra first class -----------------------------------------------.. ._____ . ._________ ._. .__.__ ..._ ._ ... .._. __ __ 19 16 ICommercial first class ----------------------------------------------------_____ .__ ._---___-__ __ _ _. __ __________________ 2,080Commercial second class --------------------------------------------------. . . ._ : .___ ._ ._________________________________.___ 1,471Broadcast class -----------------------------------------------------------._________ .________._.__.__._______________________________ 113Phone class ---------------------------------------------------------------._____ .___ ._____ . .____ . ._._____._______________________________ 115Amateur extra first grade -------------------------------------------------f _. . ._._______.______________________________ .____ 72Amateur first grade -------------------------------------------------------._ .________._________ ._________________________________ 5,058Amateur (temporary) ----------------------------------------------------____________.____________________ .__________________ 4,360
Place of inspection (city ortown)
Y
II. 8. broadcast
m
II. s. otherthan broad.cast
Y
as
Stations inspected
RADIO DIVISION
Frequency measurements
0e-Y
Foreign
13
1 Included in land for 1929 .
2 Only total figures by districts for stations of all classes compiled for 1929, which shows 22,450 measure-ments and 2,451 deviations .
3 Opened In March, 1930_
d
S DO
b am
S D
ev
D
O t ev
S D
Fifth district :New Orleans, La_______ ._ 607 95 5 18 2,899 93 112 5 5Outside New Orleans of.flce______ 14 51 41 27 97 14 122 _Dallas, Tex ---- 3 9 119 19! 1 1Outside Dallas office______ ---- ------ 3 66 11 2,328
Total, 1930___ .________ 621 5991461831 126 38 190 25 (2) 2121 306 10 6 6Total, 1929__________________ 142 175 29 I -----
Sixth district :San Francisco, Calif______ 1,439 638638 271 18 49 1 5,588 561 75 117 21 41 43 14 15Outside San Franciscooffice -------- ______ 3 21 14 91 97 12 -----Los Angeles, Calif________ 21 _ 8 7 346 39 50Outside Los Angeles office. ___379 8 33 10
Total, 1930_ ._________ 1, 821 699 3 117 187 30 6, 434 95 125 21 41 14 15Total, 1929._________________ 1,530 437 15 125 2 - (3)
(2)
Seventh district:Seattle, Wash _________ ._ . 663 771 175 151 7 4,927 86 145 7 7 159 106 114Outside Seattle office _____ 9 35 10 18 7 --- 9i 10 ___7 ___8Portland, Oreg.3__________ 62 137 12 20 5 1, 437 124 9
Total, 1930____________ 739 943 197 311 161 19 6,364 161 269 10 7 7 168 113 122Total, 1929__________________ 579 240 59 1441 (') 8 h)
__
(2)
_ _
Eighth district :Detroit, Mich____________ 413 215 8, 14 10 1 1,208 39 50 2 2 2Outside Detroit office_____ 24 48 12Buffalo, N . Y____________ 120 12 17 21Outside Buffalo office_____ 27
Total, 1930____ .______ 533313 20 55 106 la 1 39 2 2Total, 1929______-___________ 616 566 44 156 26 208 (2) _-----
(3)2
Ninth district:Chicago, Ill_______________ 459 133 18 17 27 1 4,132 70 Ill 9 3 3 1Outside Chicago office_ .__ 18 166 16 16 aSt . Paul, Minn___________ 1 ------ ___ ---aOutside St. Paul office____ 42 80 33 ------Duluth, Minn 29 l( 13____________Outside Duluth office_____ 54 18 6 ____4 1 ------ -------- ----Kansas City, Mo_________ 12 49 3 H6 1 3Outside Kansas City office 7 97 6Denver, Colo____________- 16 37 14 362 3Outside Denver office---- 3 36 17
Total, 1930____________ 488 286 51 1351 496 91 4, 690 74 116 a 3 4Total, 1929__________________ 680 477 153 473 (1) 79 3 __
-
(2)
SUMMARY
First district________________ 1, 232 185 118 13 52 33 6,907 80 135 156 61 69 83 18 20Second district_____ ._ . .____ 449Third 4,164 443 22 47 2 4536 383 458 9 7 9 1143 1 153 87district_______________ 26Fourth district_____________ 1,7342 23 1626 52 32 70 896 1,128 48 75 1 I 1 11 7 12Fifth district _______________ 621 - 146 126 38 189 25 5,349 212 306 10 6 6Sixth district _______ ._______ 1,821 699 300 117 187 30 6,434 95 125 117 27 41 43 14
15122113Seventh district ____________ 739 943district 20Eighth ___ ._________ 533 313 31 16155 106 19 1, 161 269 1039 7 1682 2 2Ninth district______________ 438 286 51 135 496 13 1,208 5074 116 9 3 - 3 491 4,690
Grand total, 1930_____ 11,334 3,026 1,287 445 ,452 251 44,923 1,162 1, 623 302 130 470 214 265Grand total, 1929___________ 10,715 2,520 1,102 ,154 29 100
14
	
REPORT TO THE SECRETARY OF COMMERCE
P
F
T
S
T
T
T
F
T
F
T
S2
T
81
T
E
" 1 Included in broadcast for 1929. 3 Opened in March, 1930 .
a Operators examined Operators licensed0 t
Commercial Amateur Commercial Amateur
lace of examination (city ortown) er
o o xtra mS A E BrPPh W 0- 1 irsW B PhW W F
irst district :Boston, Mass_ 1,740123 252 22 6 7 235--116 219 18 14 6 731 341Outside Boston ______ __ __:__ ----- 2 ____ 2 35__ _____ _____ ____ ____ ___ _____ ------
Total, 1930------------ _ 1,740 -- 123 252 24 6 9 270- _ 116 219 18 14 6 731 341otal, 1929 ------------------- 1,465 3 159 70 11 (1) 13 316 3 145 112 11 (1) 8 604 311
econd district: New York, 1,890 1 12 551 460 17 66' 849 104N. Y_______________________
1,890 1
1 666 394 32 6
6121
-557- 11
55711 551' 460 17 6' 6 849 104Total, 1930_____________otal, 1929___________________ 1,397 1
1 6683 418 394158 3216 (1) I 10 374 5 533 221 14 (1) I 7 607 60
hird district :Baltimore, Md------------- 1,292-- 35 51 10 1 1 33__ 65 77 7_______ 417 160Outside Baltimore office___ ______ __ 1 ----- ___. ._ ._ 44 __ _____ _____ ____ ____ ___ _____ -----
Philadelphia, Pa----------- ------ __ 37 89 13 2 1 142__ 79 89 10 2 10 120_____Outside Philadelphia office_ -----------__ __ 18 __ _____ __ _Norfolk, Va________________ _____. __ 11 18 9 __ 27 31 8Outside Norfolk office______ ___ __ _____ ____ ____ 12 __ _____ _____ ____ ____ ___ _____ -----Washington, D. C_________ ______ __ 7 44 19 __ ._ 2 57 -- 18 33 14 ____ 2 63 -----
Total, 1930__ 1,292 91 202 52 3 17 315__ 189 230 39 2 12 626 160otal, 1929_________1,138 1 167 79 20 (1) 13 233 4 214 117 17 (1) 6 478 93
ourth district :Atlanta, Ga________________ 835__ 25 23 38 ____ 6 33__ 44 101 29 4 8 174 446Outside Atlanta office ------ ______ __ 31 84 30 4 11 158 __ _____ _____ ____ ____ ___ :____ -----
Total, 1930__ ._________- 835-- 56 112 68 4 17 191 44 101 29 4 8 174 446otal, 1929 ------------------- 659 __ 35 33 28 (1) 10 34-- 43 35 17 (1)9 112 320
fifth district :New Orleans; La----------- 1,044-- 68 193 14 1 1 45 __ 250 358 41 7 4 231 548Outside New Orleans office- ______ __ 26 108 57 2 3 134 __ _____ ----- ____ ____ ___ _____ -----Dallas, Tex------------- ___ 35 24 2 2 33-- 11 39 31 3 4 93 .----
Outside Dallas office . . ..___ 5 28 34 1 4 70 __ _____ _____ ____ ____ ___ _____ -----
Total, 1930 ------------- 1,044 99 369 129 6 10 282 261 397 72 10 8 314 546otal, 1929 ------------------- 832-- 245 198 42 (1) 7 152 1 281 208 23 (1) 5 179 475
,xth district :San Francisco, Calif________ 3,392 1 352 129 17 104 9 181 5 325 222 18 148 15 860 424Outside San Francisco
office 2__ 2 5 48 6 63.___-----------------Los Angeles, Calif__________
______
------ -- 130 123 24 81 11 2331__ 112 141 16 71 10 318 1Outside Los Angeles office__ ------ __ 12 14 ____ ____ 2 46 __ _____ _____ ____ ____ ___ _____ -----
Total, 1930_____________ 3,392 1 496 268 46 233 28 523 5 437 363 34 219 251,178 425otal, 1929___________________ 881 2 295 153 35 (1) 35 427 5 416 240 32 (1) 19 1,047 370
wenth district :Seattls, Wash -------------- 1,097-- 157 133 34
151
97-- 161 178 40 10 2 351 255
Outside Seattle office------- _____ .-- 26 73 18 2 5 131 -- _____ ----- ___ . .___ ___ _ -----Portland, Oreg .'----------- --------
----- 8 1 ____ 1 4 __ ----- 5 1 ____ 1 4 -----
Total, 1930 ------------- 1,097--183 214 53 17 7 232 161 183 41 10 32 355 255otal, 1929 ------------------- 940-- 168 167 19 (1) 5 2321__ 167 150 24 (1) 331 230
ighth district :Detroit, Mich-------------- 2,876-- 15 141 46 20 3 102__ 51 181 34 22 6 6061,351Outside Detroit office______ ------ -- 3 18 15 ____ 9 180 __ ----- _____ ____ ____ ___ _____ -----Buffalo, N.Y-------------- 165__ 11 43 35____ 4 21__ 24 43 24____ 11 170 42Outside Buffalo office ------ ______ __ _____ 16 6 ____ 9 171 __ _____ _____ ____ __ ._ ___ _____ -----
Total, 1930____________- 3,041__ 29 21 102 20 25 474__ 75 224 58 22 17 776 1,393otal,1929------------------- 1,976__ 118 127 55 (1) 23 420 110 147 38 (1) 5541,058
inth district :Chicago, Ill------ 4,071 ._ 34 298 88 28 9 250__ 64 28062 3329 9311,470Outside Chicago office__ .__ ___ __ l 23 2430 2'81 -- 11 33 36736__ ____ .8
_____
19
____12 ____ _____48 -----St. Paul, Minn------------Outside St Paul office
.________ __._ ____ . ___ _ . __ __ __ ________ 13 ____ _____ _____ ____ ____ ___ _____
-----
Place of examination (city ortown)
Ninth district-Continued.
m
.4
1Included in broadcast for 1929 .
q a Qa w
COST OF RADIO SERVICE
A
S
q
a
The following statement shows the detailed expenditures of the
radio service for 1930 and the appropriation and proposed allotment
for the fiscal year 1931 .
1 In addition to the regular amount appropriated for 1930, $460,000, by act of Congress $50,000 was madeavailable for the purchase of a site and for the construction of a constant-frequency monitoring radio station
at Grand Island, Nebr .
	
$48,400.43 of the $50,000 has been expended.
2 $2,372 is Brookhart Act effective July 3, 1930 .
1930 1931 1930 1931
Salaries : General expenses-Con.District of Columbia- $57,875 $59,112 Rents________________ $21,990 $23,591Field_________________ 26 9,789 314.240 Office supplies andstationery__________ 2,699 3,500Total_______________ 327,664 373,352 Communications_____Miscellaneous 4,202 3,850
General expenses :
ex-penses____________ 6,082 2,545
Travel and subsist-ence---------------- 28,557 19,500 Total__ 432,848 473,830Furniture and fix- Transferred 25,000 _ __________tures, office --------- 4,419 3,500 Unobligated balance______ 2,152 ____________Test cars and equip- Reserve ------------------ ____________ 28,542meat_______________Motor vehicles_______ 19,772676 9,800___________ Total appropria-Technical instru- tions______________ 1460,000 1502,372meats and supplies_ 16,787 34,192
Duluth, Minn_Outside Duluth office______Kansas City, Mo__________Outside Kansas City office_Denver, Colo______________Outside Denver office ______
. . bl
_____ __ . . 9
.__ . _I--
16
5 14 40I28
7 41
17
_3
I
1
._ 1
9 7__ ___1 42 '___ib7 4814 202 i_ _ __3 22 45 __ ____ _
---11
1 19 --------9 'is _"22i
21 --5 I__2 49--
Total,1930_____________ 4,0711-- 26521 242 ( )2 601 964 __ I 9s 365 122 ,(yil 44 1, 269 11,470Total, 1929________________-__ 3,358 ~ 1 314 80 241 795-- 171 241 52 7 1,146 1, 443
SUMMARY
)First district________ ._______ . 1,740 123' 252 24 6 12I9 270-- 116 219 18 14 61 731 341Second district_______________ 1,890 1 668 394 32 6 557 11 551 460 17 6 6 849 104Third district ____________ ._._ 1,292 91 202 52 3 17 315- _ 139 230 39 2 12 626 160Fourth district_____ 835 56 112 68 4 171 191 __ 44 101 29'I 4 8 174 446Fifth district_______ 1, 044 99 369 129 6 10 282-- 261 397 72 10 8 314 546Sixth district_________________ 3, 392 1 496 268 46 233 28 523 5 437 363 34 219 251,178 425Seventh district______________ 1, 097 183 214 53 17 7 232-- 161 133 41 10 3 355 255Eighth district_____ :_________ 3,041 29 218 102 20 25 ; 474-- 75 224 56 22 17 776 1,393Ninth district ______________._ 4,071 62 450 242 32 60' 964__ 98 365 122 48 441, 269 1, 470
Grand total, 1930_______I18,4021 2 1,807 2, 479 748 327 1853,308161, 9322,542471
430 335129'6, 272 5,140228 172 I5,Grand total, 1929------------- 12,64610 1,8571,304 306 ( 1) 140 3, 033 19 080'1, (1) 058 4,360
RADIO DIVISION 15
q0 Operators examined Operators licensed
a
s Commercial Amateur Commercial Amateur