Richmond times-dispatch. [volume] (Richmond, Va.) 1914-current, 1922-11-26
BRAZILIAN STATION
TRANSMITS OPERA
Engineers Installing SPC Have Unique and Cooru Elk
perience Atop Rio dc Janciro Mountain.
Already in Full Operation.

Brazil. that progressive South
american republic. which II now
cciebrating tho one hundrcdth an
hiN"rsary OF It's Declaration OF indie
pendcncc by holding centennial cel.-
hrations I'm the beautiful city ~ Rio
do Jan"iro, Is being entertained by
Yankee radio telephone broadcast
Ing station.
The story OF the American on
E!nccrs who erected the now IA
mllIar station forms uniquely beau
tful and descriptive chapter in
radio engineering. The account "a
outlined IL g!v,n below for broadcast
fans hero wLu listen in on the sta
ton.
Entering the benu;j.nl city OF RIO
de Janciro IN" most Impressive sight
is tho exquisite mountainous hack
ground Of the city and particularly
.torcorsd".' an almost rcrp"ud!cu-
lar mountain. with It's summit over
1000 feet abov" tho sea level
Doubt pince for Mast..
WHY erect high mas,s when
such mountain is :" nearby7"
gucri"d the radio onainccrs
Can We get the lucation2"
THIS question was answered In the
affirmative 10y f. y. iiuntress. g.n-
cral manager az III" 1ramway Light
and Power company. who own the
-
cHvado." II" also s;a'cd We can
supply 100 volt or 22O v,l,. o" cy,;e,
alternating Currcn; an the -: cun,= Ia
top tor the radio outfit"
The party set out to explore the
mountain crest The ars. 1000 feet
ot ascent. or hve-milc ride from EIo
Il. Janciro. was made in thirty min
by following the foot path 20 the
circular observation tower on tho
top.
survey ate.
\ quick survey ~ tn" available
sracc on me crest disclosed mar
row path abon, 20 teet long. lead
Ink to a concrete paTa3et on tho
cGgn %, IN" pro nice.
Tho crest ~ "Cnrcovado" had al
ways horn used - an ob.cryaiion
DIRT. bU, tho radio-tclcph"ne en-
r,rc"rs saw moro than m"ro scenery
they had = view ~ 'h' prospective
iuvisibie radio audience 'n numerous
ships at sea. and tho millions iu tn"
capital city several tHUu.auG fee,
below
Tho mountain ranges auI thor
peaks whll" hoau':fui TO look. upou
wor" Waved as obstacles 20 Sc over
come in hr"adcnsine ln the d.stau,
cities ANA towns ia i1TnhU. Tho
tropical vegetation also suggested
the climatic differences from the
United Stai"H. Whcr" these engineers
w"r" ACTIVE ia Developing KDKh u,
East IiitsuU:E WEI 20 Springfield
Mass. VIZ =, %"wark. y. j. and
k"Y at Chicago. III
Erect Tall WAISTS.
Two l2j-foot m,stS were erected
on the verge Of tn" precipic. on
which nrc stretched a s3-fout six.
wiz" nntenna between two twenty
siS-foot spreadcrs The couutcrpois.
consists Of Two sections OF live wire.
each. mounted Oh Two iw"uty-SIN foot
sprcad"rs which ar" balanced on ~.
ends Of the sevcnty.toot horizontal
pole boltcd fast 10 the mast on thy
summit
Tho counterpoIsc wires are
stretched clear OF the mountain sides
down about 100 feet 20 The tops o.!
TWO poles located near tho terminal
building OF the railway where the
wires convtrging smmctricalIy form
tcn-wire cage which leads into IN,
radio telephone operating room. Tn,
hum OF the 2c0-voIt hl,eruatlng- cur
ront motor was eliminated by IA fltc:
system mad. mp OF microtoii con
denscrs and large choke coils.
Assign Gail.
A nfngle-w!r. an,.nna was strung
from tho mountain top To III. operas:
inG-room about 1875 feet below. 10,
receiving messages, y speech ampl!.
Der Is located In the operntinr-room