Evening star., 1925-08-02
"Peer Gynt" to Be Broadcast.
Broadcasting i'm Brazil.


According to Assistant Trade Com
missioner J. j. Marrinan, Brazil has
Jagged behind some other South
American countries In the develop
ment of radio, Chile and Argentina
being very much more advanced than
Brazil. This has been due partly TO
the stringent regulations regarolng
reception which were in effect until
recently, to the absence of regula
broadcast programs of merit. ana TO
adverse climatic conditions which
make anything but local reception an
impossibility during the greater part
of the year. The first two dif1cultles
have been virtually eliminated, but
static remains as a serious obstacle,
at least at Rio de Janeiro and North
Brazil.
The following broadcasting sta
tions are now in operation: Rlo de
Janeiro, Radio Club de Brazil tPrala
Vermelha station), wave length 46o
meters. power 500 watts; Rid de
Janeiro, Radio Sociedade de Rio de
Janeiro, wave length $50 meters;
San Paulo. Radio Club of Sac Paulo.
wave lengths $50 and .420 meters.
power 100 watts. and Sac Paulo.
Paulista Radio Edueadora Society,
wave length 345 meters, power 10
watts. This society, however. Is now
building a 1.000-watt station with
American equipment. Other broad
casting stations are located at Bello
Horizante fMinas Geraes). Bahia,
Pernambuco, Parans, Para and Ceara.
Practically all receiving sets in Rio
de Janeiro and Sac Paulo are
operated on outside antennae- The
use of loops, except by a few ad-
vanced amateur experimenters, Is
unknown. Long distance reception Is
good only from May to September.
During other months static is so bad
that only local stations can be heard
with any degree of comfort.
The average radio devotee in Rio
de Janeiro is satisfied with the re-
ception of Buenos Aires and Sac
Paulo. Similarly in Sac Paulo. re-
ception of Buenos Aires and Rio de
Janeiro is satisfactory. Save for a
few Americans and Brazilian anna
teur experimenters, there is little In
terest In receiving United States
stations. Thus far none OF the sets
on the market in Brazil have been
able to receive United States sta
tions, although the short-wave trans
missions from KDKA have been re-
ceived in Rio de Janeiro and Sac
Paulo.
Nineteen licenses have been issued
to amateurs IOr SnOrl-"dNo IciS-
graphic transmission. These stations
maintain regular communication with
Buenos Aires U.200 miles distant)
and have communicated with the
United States $4,000 miles distant)
1t is likely that this experiment will
encourage the use of short-wave
radio telephone receivers, particular
| ly If there is any appreciable de-
velopment of broadcasting on the low
band in the United States.
In Rio de Janeiro and in all the
cities along the seaboard 1t. is very
humid during the greater part of
the year; consequently. metal parts
soon become corroded unless proper
ly treated. 1t is highly desirable
therefore. to make all radio receivers
and parts. dampproof so far as pos
sible.
1t is estimated that there are at
present between 10000 and $4,000 re-
ceiving sets in Brazil. OF these
about 5000 are in Rio de Janeiro and
between 1900 and 1000 in Sac Paulo.
Notwithstanding the regulations,
there are many clandestine receivers,
for the most part sets constructed
by amateurs from parts.