COMMUNICATION INTELLIGENCE SUMMARY, 5
General.-Traffic volume above normal. All circuits heard and receiving conditions were fair to good. TOKYO very
active as an originator, sending out
many messages of general address. Two WIWI messages in Kana Code sent by NGS to Chief of Staff CarDivs
and TIYA 44 (unidentified) respectively.
The Intelligence Offices of China Fleet and TOKYO continue active with many dispatches passing between
Third Fleet.-Two units of the Third Fleet appear today in TAKAO area. Since these calls are as yet unidentified
(RISI4 and YOA2) it is not known how
much of this fleet they represent. It is fairly certain that the Commander in Chief, Third Fleet has not
yet left the Sasebo area although it is
expected that he will before long. One message which may be a movement report from him was received
late on the 5th. The present state of
call recovery on the Third Fleet does not permit of an estimate of the movement involved.
A unit of the First Fleet, identified today as CARDIV 4 appeared today at BAKO. This Carrier Division was addressed
as "less FUTA SHOTAI" (2nd Section?)
Whether or not these are other units at BAKO is not known. The Commander CARDIVS has been associated with
SAMA and BAKO in several dispatches
today. The following were also associated, SANCHOW ISLAND, TAKAO AIRCORPS, CANTON (China) and YOKOHAMA
Air. The RNO TAIHOKU originated many
dispatches to TOKYO and the French Indo China Forces. A TAIWAN originator sent one to Lieut. Comdr.
SHIBA at the Embassy THAILAND for
information to HANOI and the Commander French Indo China Forces.
BAKO originated numerous dispatches to the Empire and to the Major
The South China Fleet was also the recipient of many dispatches from TOKYO.
Despite the uncertainty due to the Change of Calls it is believed that there is now being effected a concentration
of naval forces in the BAKO area which
will comprise the Third Fleet as organized in SASEBO for the past month and will be augmented by heavy air
forces and Combined Fleet units to an
(FROM: U.S. CONGRESS JOINT COMMITTEE ON PEARL HARBOR
ATTACK HEARINGS; PT. 35, THE CLAUSEN
INVESTIGATION, PP. 62-81. EXHIBIT "A" DAILY COMMUNICATION