New-York tribune., 1922-10-29
Best Radio Now
On Japanese
War Vessel
Kamoi, Fuel Supply Ship
for Nipponese Navy, Said
TO Have the Most Pow
erful Transmitter Ahoat
HasRadiophoneExchange
Receiving Apparatus Covers
Every Wave Length Used
and Is Super-Sensitive

The xamoi. fuel ship Of the Imperial
Japanese navy. which steamed out of
New York October en- route to Japan
on her maiden voyage, has the most
elaborate radio equipment of any shin
ahoat, according to radio engineers.
| Ihe most recent inventions in the
Held OF radio art have been included in
the outfit, most OF which was furnished
; by the General Electric Company.
Included In the transmitting EQUIP
ment are one kilowalt radio tele-
phone and telegraph set, which may be
used for telegraphy on continuous or
interrupted continuous wave; q twenty
kilowatt telegraph transmitter and a
two kilowatt 500 cycle quenched spark
transmitter for telegraph only.
In the reception equipment are
long wave receiver with range Of
from 1000 to 10000 meters and q short
wave receiver ranging from 200 to 1000
meters. In addition there is a super
heterodyne receiver for long and short
waves and standard three-tube COM
, nercial ship receiver. with q range NJ
from 200 to 1900 meters.
An interesting feature of the install
iation is radio telephone exchange
by means Of which the ships operator
can transfer control of radio teieohone
transmItter and receiver to any one of
severa! stations. These stations are
located in the commanders room. the
commanders office, the senior officers
ward room, the bridge, etc. BY means
or the telephone exchange the conman-
der or any other officer may cornmuni-
cate with any vessel in the feet from
any one OF the stations on the Kamoi
me exchange board differs very little
IFom the usual telephone exchange.
req light indicates that the receiver
mas n oeen taken from phone hook and
inc operator, by throwing a switch,
puts the officer in immediate control
OF transmitter and receiver.
lhere is also radio con1nass nv
means of which II la possibIe 70 sna
the direction OF distant transmitt;ng
stations. Ais'1hs
The Kamoi is the show shin ~ tha
Japanese navy. She was recentlv corn.
Pleted by the New York Shipbuildinp
corporation and is the first vessel os
any navy other than the United States
navy TO pc electrically propelled. The
electric drive equipment was design.d
and installed by the General Electr;c
Company. 'Ate
The Kamoi is a 2o,ooo-tcn, s.ooo n p
Yessei and Will make fifteen knots. Her
man q am propulsion unit consists Of an
e,voo II. r.: Curtis turbine generator.
mnich supplies power to two 1000 II, p
synchronous motors directly drivino
sle twin-screw propellers. There are
also two 400 K. W. direct current t,,r0
pine generators which supply theS ex.
CITATION current as well as power to
operate the suxiliaries, such as the |
man circulating pump, main conden.
safe pump, sanitary pump, blower mo-
sols; ss: esc' Another feature of the pro
Pulsion equipment is 625-kiIcwat+
auxiliary alternator which can h. 80
,nected. to either of the auxiiinrv @ tu-
pines IN case of the failure of the MAIN
driving unit. This small generator viii will |
supply sufficient power to driye tba
81 snip at sped Of seven knots Tho
kamoi will be used to carry coz, snS and
oil to ships of the feet. ~"' ''Au