Los Angeles Times, September 3, 1925, Part 2, Page 2:

EXHIBIT  TO  HAVE  BROADCAST  UNIT
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Radio  Corporation  to  Install  Complete  Station
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Regular  Programs  to  be  Given  Under  Call  KRCA
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F.  B.  Miller  Company  Plays  Host  at  KHJ
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BY  PAUL  SHEEDY
    The thousands of visitors at the third annual radio exhibition, which will open Saturday at the Ambassador Auditorium, will have an opportunity of seeing a complete broadcasting unit in operation, in addition to seeing in person the favorites they have heard over the air from the important stations of the city.
    Word was given out yesterday that the Radio Corporation of America would install a complete 100-watt portable broadcasting station on the auditorium floor in full view of the throngs of patrons and that regular programs would be sent out into the air at regular periods on every day of the show.
    The wave length assigned by the Department of Commerce, and sanctioned by Col. Dillon, government radio supervisor for this district is 305 meters. The call letters will be KRCA. Programs will be on the air from 4 to 5 o'clock each afternoon, and from 9 until 10 o'clock each evening, being followed by the special concerts arranged, by KHJ and the other city stations, which will be simultaneously broadcast by the four important broadcast units of Los Angeles.
    From until 4 o'clock each day tests will be carried on from this broadcast booth through the cooperation of the United States Army air force. One of the army airplanes will carry a modem War Department broadcast transmitter and receiver. Each afternoon this ship will leave the aviation headquarters at Clover Field, Santa Monica, fly over the city, with communication being maintained with KRCA the entire time the plane is in the air.
    Lieut. Victor M. Clark will pilot the airplane, with Lieut. Dean Farran handling the radio sending and receiving on it. Both are regular army aviators. Lieut. Farran's voice will be heard over the receiving sets of the thousands of radio enthusiasts in this territory as KRCA will rebroadcast all of his messages direct from the show booth in the auditorium.
Los Angeles Times, September 6, 1925, Part II, Page 7:
 
BROADCAST  BILL        
      OF  STATION  KRCA

    The unique 100-watt power portable radio broadcasting unit located at the radio show through the courtesy of the Radio Corporation of America, will send out into the air the following programs during the term of the exposition:
TODAY
    3 to 4--Test messages exchanged with U. S. Army aeroplane in flight over Los Angeles.
    4 to 6--Isbell-Boyd Trio -- Ralph Reily, tenor; Jack Harcourt, baritone; Nell Mitchell, soprano.
    9 to 10--Edna Frances, readings; Miss Yolinda Foley, soprano; Edmund Sattone, violinist.
MONDAY
    3 to 4--Test messages exchanged with U. S. Army aeroplane in flight over Los Angeles.
    4 to 5--Owen Fallon's Californians with the Ashley Sisters.
    9 to 10--Rhue Gill and Deane Moore in "Tuneful Tales That Tickle;" Anton Chris, steel guitar; Beverly Bayne, screen star; the Ashley Sisters; George Cronk, saxophone; Bill Raymond, piano.
TUESDAY
    3 to 4--Test messages exchanged with U. S. Army aeroplane in flight over Los Angeles.
    4 to 5--A program presenting the Sorority Six Orchestra.
    9 to 10--Virginia Flohri, the Mary Christine Albin Trio; Felipe Delgado.
WEDNESDAY
    3 to 4--Test messges exchanged with U. S. Army aeroplane in flight over Los Angeles.
    4 to 5--Dorsey's Sebastian Cafe Orchestra, with Johnny Marshall and Cliff Eddy, entertainers.
    9 to 10--Program arranged by Myrabelle Vickers, presenting Irvin Casper, Freda Casper, Albert Bryant, Gertrude Koehring, Mildred Costello, Mildred Masser, Jonseller Valentine and Evelyn Watt in vocal and instrumental solos and ensembles.
THURSDAY
    3 to 4--Test messages exchanged with U. S. Army aeroplane in flight over Los Angeles.
    4 to 6--Don Clark's La Monica Ball Room Orchestra.
    9 to 10--Betty Patrick and Patrick-Marsh Hawaiians; Way Watts and his ukulele.
FRIDAY
    3 to 4--Test messages exchanged with U. S. Army aeroplane in flight over Los Angeles.
    4 to 5--Dorsey's Sebastian Cafe Orchestra with Johnny Marshall and Cliff Eddy, entertainers.
    9 to 10--Billy Hall, Polly Grant Hall, Robby Gross, Royal Lemon, saxaphone soloist; Bud Jamison, Marion Burton, Rose Valyda.
SATURDAY
    3 to 4--Test messages exchanged with U. S. Army aeroplane in flight over Los Angeles.
    4 to 5--Ernie Ostrups Polar Bear Orchestra, with Bobby Gross, tenor.
    9 to 10--"Open House Program," presenting America's best known radio stars, and B. C. McDonald, speaker.
Los Angeles Times, September 6, 1925, Part L, Page 2:

FANS  THRILLED  AT  RADIO  SHOW
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BROADCAST  TO  PLANES

    An unusual experiment was carried on yesterday between 4 and 5 p.m., by the Radio Corporation of America in broadcasting from its station KRCA, installed on the exposition floor, to United States Army airplanes flying over the city. The planes, carrying broadcasting equipment as well returned messages to the receiving set in the company's booth. These tests are to be given daily from 4 to 5 p.m., and listeners-in can pick up the conversations.

San Bernadino Daily Sun, August 21, 1926, Page 3:

Elaborate  Program  of  Broadcasting  Is  Planned  for  Week
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(By United News)
    SAN FRANCISCO, Aug. 20.---Western states will "tune in" starting tomorrow on what is expected to be the most pretentious broadcasting program of the year when the third annual Pacific Radio exposition opens for one week.
    Almost continuous broadcasting will be carried on during the week by the exposition's station KRCA on 377 meters, to be operated by the Radio Corporation of America. Radio celebrities from six bay district stations will "take the air" from KRCA.

Los Angeles Times, September 5, 1926, Radio Section, Page 1:

KRCA,  NEW  STATION  TO  BROADCAST
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Portable  Equipment  Will  be  Installed  at  Fourth  Annual  Radio  Exposition
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    Beginning Monday afternoon, a new station goes on the air when KRCA, the portable broadcast station of the Radio Corporation of America, starts broadcasting from the Fourth Annual National Radio Exposition, located at the Ambassador Auditorium.
    KRCA goes on the air on 377 meters each afternoon between three and five, and each evening between eight and ten. Programs for this new station are being furnished by the best talent obtainable in Southern California.
    Such artists as Virginia Florhi, coloratura soprano, whose exquisite lyric range has made her the outstanding radio star of the West; Robert Hurd, tenor, and program director for KFI; the Louise Kloss Trio, and many other popular KFI stars may be seen in person at the studio of KRCA, which will be entirely inclosed in glass.
    Visitors at the radio show may not only see the artists perform before the microphone, but they can also listen to the broadcast program through loud speakers placed in Radiola Hall, that section of the auditorium so arranged that a large number of radio receiving sets and speakers will be in operation at one time and all tuned in on this one station.
    Dean Metcalf, well known to radio fans from KFI, will do the announcing.
    Many other interesting features are promised for the show. According to B. C. McDonald, local representative of the Radio Corporation, no expense has been spared to make Radiola Hall a thing of interest to the radio public. A miniature model of the famous radio house, where every room is equipped with radio, has been constructed showing all of the intricate wirings needed to equip each room with a radio set and loud speaker. This radio house, said McDonald, caused much comment in the East, where it stands on Staten Island, New York City, and for that reason it was believed well worth while to construct a miniature model for the show.
Los Angeles Times, September 8, 1926, Part II, Page 3:
KRCA FEATURES     
VOCAL ARTIST
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Way  Watts,  Baritone,  to  Head  Radio  Show  Program  This  Afternoon
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    This afternoon's program of the radio show broadcaster KRCA, is headed by Way Watts, baritone, who will accompany himself on the ukulele, and the Starke Sisters, popular ballad singers who will appear among the mass of clouds in the glass enclosed studio from 3 o'clock until 4.
    From 4 o'clock until 5 the visitors at Radiola Hall, Ambassador auditorium, where the station is located, will be entertained by Charles Diamond, broadcasting his famous Hawaiian music.
    The evening program is headed by a second appearance of Virginia Flohri, lyric soprano, together with the Louise Kloss Trio, the Angeles Quartet, and Tom Mclaughlin, baritone from 9 o'clock until 10.
    The hour from 8 o'clock until 9 will be livened up when the Patrick March Orchestra and Betty Patrick, one of the most famous combinations of the air will appear before the microphone. Betty Patrick has an inimitable style of singing popular songs.

Riverside Daily Press September 17, 1926, Page 9.

FAIR  STATION  TO  BROADCAST  FIGHT
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    Radio KRCA, the Radio Corporation of America's station at the Southern California fair, will receive and broadcast results of the Dempsey-Tunney fight beginning at 6 o'clock Thursday evening.
    The station is on 385 meters. Results of the Philadelphia battle will be given round by round as it comes from the Southern California Radio Trades association, through which the Riverside station received its permission.
Los Angeles Times, September 19, 1926, Part V, Page 10.

FAIR  PROGRAMS  WILL  GO  ON  AIR
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Station  to  be  Installed  Riverside  Exhibit
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KRCA  to  Broadcast  Daily  at  377-Meter  Length
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Plans  Made  to  Handle  Record  Breaking  Crowds
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    RIVERSIDE, Sept 18.--Radio Station KRCA, owned and operated by the Radio Corporation of America, will broadcast programs from the fourteenth annual Southern California Fair daily from the 21st inst. to the 26th inst., President J. E. Wherrell announced today.
    The station will be installed in booths No. 20 to 23 in the agricultural tent and will be on the air every day from Tuesday to Sunday between 2:30 and 4:30 p.m. and from 7 to 10 p.m.
    The fair association has offered prizes for the first five telegrams received daily from each fifty-mile zone up to 250 miles and also a prize for the telegram from the point most distant from the station.
    An excellent series of programs is being arranged to be broadcast on 377 meters. The studio will be open to visitors every day, and many will have their first opportunity to see the microphone in action.
    "If anyone in Southern California cannot attend the fair we want to take the fair to them," said President Wherrell today. "The programs will be linked to the fair itself, so that listeners-in can gain an idea of the exhibits we have here. They will not, however, be of an advertising character, but we plan to put some of the finest entertainment available on the air."
Riverside Daily Press September 22, 1926, Page 8. (KRCA advertisement appeared in the Riverside Daily Press on September 17, 1926.)

FAIR'S  RADIO  STATION  BUSY
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Opening  Programs  Draw  Praise;  Fair  Secretary  Gives  Welcome
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    Radio KRCA, portable broadcasting station of the Radio Corporation of America installed at the Southern California Fair, gave its first air program yesterday afternoon and evening. Calls from outlying communities received continually after the first few numbers attested to the strength and clarity of the station's voice as it carried the fair to the Southland through the ether.
    The station, located in a beautifully decorated studio in the industrial tent, was on the air from 2:30 to 4:30 in the afternoon and from 7 to 10 o'clock in the evening featuring Mrs. Meyer Schoenthal, soloist; Jose Arias Mexican Orchestra; Martin Nappa, Indian tenor; the Rivona Boy's Orchestra; the Moonbeam Orchestra and the Colored Quartet which sang during the afternoon event before the grandstand. KRCA advertisement
    KRCA is broadcasting on a wave length of 385 meters and according to fans who communicated with the studio no difficulty is being experienced in locating the station on the dial. Tests Monday night brought in a flood of testimonials to the fact that the station was giving satisfaction.
Secretary  Extends  Welcome

    Taking advantage of the station on the grounds, Mrs. Cecilia G. Cravens, secretary of the Southern California Fair, yesterday afternoon and evening extended the following welcome and invitation to people of the Southland at the opening of this seasons fair:
    "Friends of Radioland: It gives me great pleasure to welcome you to Riverside and more especially to the Southern California Fair which will have its gates open from 8 a. m. to 11 p. m. each day, all week, including Sunday.
    "The endeavor of our directors and President J. E. Wherrell has been to have a program of educational value as well as of entertainment and amusement. Approximately half of our budget has been expended upon educational features and especial effort has been made to secure worthy entertaining features.
    "The result is that all available exhibitors' space is now filled, 35 carloads of livestock were unloaded this evening (Monday) in the cattle and swine departments, our racing barns are overflowing and an excellent racing card has been provided. School exhibits are the largest we have ever had.
    "Newspapermen this morning reported our Agricultural show the most beautiful ever held in California. Riverside county communities are represented 100 percent. The Poultry show is complete with 3000 specimens. The Junior Fair is the most comprehensive ever conducted. This is the first Fine Arts exhibit at Riverside, and critics say it is the finest collection of modern art ever shown in California
    "You will find every department of art, science, agriculture, industry, livestock, poultry and entertainment at the Southern California Fair. Each day there will be special entertainment features.
    "Saturday will be governor's day and Governor Richardson will be the guest of honor. Each night there will be presented the Longfellow epic poem, "Hiawatha," by students of Sherman Institute,
    "Remember the slogan--You Be There."
Has  Beautiful  Studio

    The studio located in a small structure in the industrial tent has been attractively equipped with beautiful draperies, rugs and lighting apparatus. A grand piano has been installed in the room for the use of the artists broadcasting. Draperies on the walls serve to give the correct acoustic qualities for the deadening of echo.
    At one end of the studio, separated from the broadcasting room, is the operators room where the mechanical equipment is located. L. G. E. Rhodes, official operator in charge of the station, controls the clarity and wave length of the concerts through variance of adjustments on the control panel.
    The sides of the studio are windowed providing visitors a view into both the broadcasting and the operators room. Crowds were jammed against the studio all day yesterday, many persons standing there during the entire program to satiate their curiosity as to the workings of a real broadcasting station. Artists could be seen broadcasting inside the studio and large loudspeakers throughout the tent carried the selection to the visitors.
    Acting as announcer is B. C. McDonald, sales director of the Radio Corporation of America for the Southern California district, who also supervised the installation of the station at the fair.
    Programs will be announced each day and the station will be on the air on the usual wave length from 2:30 to 4:30 o'clock in the afternoon and from 7 to 10 o'clock in the evening.