Evening star., 1928-06-10

washington correspondents in the press
section were frequently obiivious of the
confidential remarks and asides Of the
| presiding officers, but editors in the
home ofiices, perhaps thousand miles
away, could hear everything.
Just as radio receiving sets have
taken long strides in advance In simpli-
fication, so have the broadcasting meth
DDS. In 1924. because Of the vast
amount OF noise. 1t was necessary for
the anrlouncers to be placed In glass
cages. This has been obyiated by re-
cent developments In broadcastfng ap-
| paratus, 50 that no cage viii be neces-
sary either In Kansas City or Houston.
Therefore two microphones will be
placed right on the platform Of the con-
Yention.
The broadcasting Of the conventions
this year viii be- due in part 10 the trail
| blazing work done at the Republican
| convention I'm 1920 at the Coliseum tn
I Chicago by group Of young engineers
from the American Telephone & Tele-
graph Co. Up to that time the Coli
scum had been a perfect barn for hear
| ing. Those at one end Of the hall were
unable TO hear what was going or at
| the other end This was Just about the
! time that amplificrs we're being expert
arrangements thought that they would
| give the ampiiflers a chance. This was
done and huge amplifiers we're erected.
Perfecting Device.
! fhcYtly before rhe convening Of the
convention the perfected apparatus was
testeo with the use of phonograph rec
/; Grds, and those who .sneE ite acccus-
| tics Of the Coliseum we're amazed al
| yi1at had bcen done. The system
worked all right. Ii fhf meantime
| thes. same engineers, watching the ef-
| feet OF every mistake. we're WORKING
hard on their amplifi2rs. with the result
| tina. two weeks later when the Demo-
cratic convention got int action IN
| San Francisco these same effective
| an.pljherE we're used. only they wert
less unsightly, being less than half the
size Of the Chicago ap2aratus, and CIV
| ing better results,
Following their development along
| further, the next March 4, when prcgi-
dent Harding made hia inaugural al
| dress. not only were ampiifierg used
| that we're effective, but they we're even
| concealed. and whereas up 10 that time
| only a few hundred people on th9
! grandEtands could hear the inaugural
address. President Harding's voice wss
! plainly heard on The steps of the Con
| gressional Library.
There Is, however, q feeling among
those who make their living In 0ae way
| OF another from the radio industry that
the brCadcasting of the long drawn -utit
Democratic convention IN 1924 did ~
much 10 establish tho success Of radio
as anything that happened. On the
other hand II eureiy did more 10 &C.
qUsint the people ~ the United Etstes
with aud 10 interest them IN a political
convention than any other method
WHICH heretofore has ever been con.
csiyed
Though sE we'll ~ ihe brosdcasts
we're received from the 1924 conventions,
their FIRST trial, preparations made foi
this years conventions far excel then
IN every detail Sixteen interconneetef
stations broadcast the convention pro,
ceedinge theu~ea record E0ok~lIp at tht
time. Nov 10 have contracted airead,
10 TIE In the Nation wide chain and 4
number u others are expected 10 joii
in before the curtain rises in the con
yeHtaon hall In Kansas City at Il
O'Clock Tuesday, Washington time.