Evening star., 1924-03-23

The Hoover cup, awarded annuailE
by Secretary of Commerce Hoover to
the owner of the best aN-around
amateur station, home designed and
constructed, has been awarded this
year to Donald c. Wallace OF Mime
apolis, Mimi. operator of station "HT
Since the passing of amateur sta
tion 9ZN at Chicago, formerly cper-
sted by Il. II. G. Mathews, SIT has
been recognized by amateurs as one
of the most reliable relay stations
for handling code traffic destined
across the continent. The hub OF
amateur radio in this country is CEN
tered in Chicago and Minneapolis.
Wanace's station, as the owner
puts it, is the near realization of
lifelong ambition" and. hk" al STA,
tions that have been consldered
worthy OF the requirements Tor tnt>
award represents to the world at the
time what is the finest in amatf ar
radio. Station 9IT is one OF tn"Se
stations regarded in an idealisuc 'ts
we'll as a practical sense, tnasmuch as
it is kept i'll readiness for emergency
work.
The transmitter of 9ZT utilizes one
250-watt radiotron tube. The Hart
ley circuit is used, and simplicity eH
lists throughout the entire layout. y
CneSI drawers houses tit SlA- p'N-N
material. Extra apparatus is not con,
nected i'll or near the circuit 10 aE"ic
adding to the LOSSES OF all KINDS
through induction.
TT has been found poor policy 10
change waves" according to Mr.
Wallace, land, except in raT" IN
stances, only two waves have oetn
used-2l5 meters and ll5 meters, All
variations from these waves nav" "''il
Slight or rare. 50 that those VIII" wish
10 communicate with SIT can count
on finding il Cn thy $1mr "aFr' \
special type of Wavcr't e." = u>''" ana
sometimes. when a distant station -
known to h. Iisteniu& Tor d"hntt"
wave, lie is raised 10y III, WaN"Int'"H
method Of adjusting tho tranSlnltttf-
The only adjustment tor ia
meters is TO connect the three con
densers in series, on their low capaci-
ties (0003 eachl, and move the plate
tap sevCn turns. The dntenna cur
rent is then six ampereS. fTench oAB
was worked on this wave, 1MO do
ing the receiving. At that time the
antenna current was only j Il am
peres, as the simpler way to get max
nnum results had not been discovered.
Outlines Radios Progress.
new and valuable feature of the
March issue of the Radio Service
Bulletin. issued last week by the
Department of Commerce, is sec
tion devoted to an outline of the i'm
portant events in the progress Of
radio. headed Peaks in the Waves
of Wireless Progress"
Starting back in 1927, when Savary
found that a steel needle could be mag
netiZed by the discharge from
Leyden jar, the section describes all
of the important Developments of
The wireless science up to 1924 his
torically and technically. concluding
with i resume of the White radio
control hiil introduced in the House
on February -.
The March bulletin also contains
e revised and up-to-datc list of the
radiophone broadcastinC stations in
the United states. Copies may be
procured from the superintendent of
documents of the government print
tnS office for ) cents each.
BuiIds Unique Set.
4 radio set will he built soon in
the home of Leslie Lambert of Alton.
n. j., with pieces of 4 tool chest cast
from the Shenandoah to tighten the
diriglble IN its flight in the storm.
While observing the course OF the
ship over his home, a tool chest
crashed to the ground not more than
twenty feet from where Mr.. Lambert
and his family were standing.
Breaks speed Record.
The world speed record for copying
of radio telegraph code signals was
shattered recently when \. r.. Ger
hard received straight copy at the
astounding speed Of 59l. words u
minute at a contest. in New York.
Gerhard * an operator in the employ
OF the Radio Corporation of America,
and his remarkae ele feat Of raising
the former world speed record of ST
words a minute has given him the
plaudits of the entire radio world.
What a remarkable accomplish
ment this is can be best appreciated,
perhaps. when one figures that his
usual speed used III ship radio com
munication.
Five New Stations.
Broadcasting stations in the United
States are still increasing. The Depart
n1ent of Commerce last week issued
licenses to five new broadcasters. They
are
kFOY-Beacon Radio Service. St.
Paul, Mimi; meters, 22G. power watts,
WBBY-washingto Light Infantry,
Charleston, 5. c.; meters, 26S; power
watts. 10.
WCBJ-J. c. Manus. Jennings, La
meters, ga; power watts, To-
WCBK-E. Richard Hall. st. Peters
burg, Fla; meters, 266; power watts,
WSAP--Seventh Day Adventist Church.
New York, y. Y; meters, 263; power
watts, POO.
The New wBZ.
Since the first broadcast given from
the new Westinghouse Boston Herald
Traveller station WBZ on Washington's
birthday, radio fans all over the coun-
try are welcoming a reJuvenated friend.
all the more welcome with its new
strength and efficiency.
Following the first broadcast. formal
opening of the new Hotel Brunswick
studio in Boston was made Monday
February "a. with a program that in
cluded addresses by state and municipal
officials, repre-: entatives OF the Boston
Herald -TraVeieT the WESTINGHOUSE
Electric and Manufacturing Company
and the Brunswick Hotel.
In order to make this broadcasting
successful it has taken three months of
intensive work in building a model ;:
studio on the Brunswick Hotel, in con-
structing special telephone line be-
stall:ng superbroadcasting station at
Springfield.
Last fall plans were made for this
sta tion by the Boston Hera d-Traveler
the Westinghouse Electric and Manu-
featuring Company and the Brunswick
Hotel and the public was advised of
the project Since that time hundreds
Of inquiries have been received asking
when the station would open. The inn
mensity of the new station was not
realized. and, in fact. until the first
broadcast is given on Sunday night, and
followed by the formal opening on Mon
day night, radio fans will not be aware
of what had to be done to make it sue
ceSSful.
The studio on the Brunswick Hotel is
.an immense undertaking, and this is
Just one of the three main factors that
we're necessary. On the roof of this
hotel a building was erected that would