COMMUNICATION INTELLIGENCE SUMMARY, 4
General.-Traffic volume normal with all circuits easily readable. More tactical traffic copied than for past few
days. Combined Fleet and Carriers heard
on tactical circuits. TOKYO Naval Intelligence sent four messages to Major Commanders. One of these
was for information Chief of Staff
China Fleet and one other for information of Chief of Staff Second Fleet.
Air-High traffic level of air activities continues. Most significant of
the air dispatches were some in which
various air corps were addressed and
BAKO included for information. One from Yokosuka Air was addressed to SANCHOW Island radio for information TAKAO
Air Corps. BAKO was also noted as an
addressee in several messages from SASEBO and originated two messages to SASEBO and TOKYO. Commander
Carriers also addressed a message to
two unidentified calls for information of Commander Combined Air Force, Commander in Chief, Combined
Fleet, CarDiv Collective, BAKO and
others. The Commander Combined Air Force addressed a messaged to Commander in Chief Third Fleet.
Mandates.-The RNO PALAO was active today, being addressed by Commander in Chief, Fourth Fleet and sent several
messages to TOKYO and YOKOSUKA. The
PALOA weather station sent a long code message addressed to nearly all the islands of the Mandates. MARCUS
island appears as an originator. No
change in the location of Fourth Fleet units noted.
Submarines.-No activity noted.
(FROM: U.S. CONGRESS JOINT COMMITTEE ON PEARL HARBOR
ATTACK HEARINGS; PT. 35, THE CLAUSEN
INVESTIGATION, PP. 62-81. EXHIBIT "A" DAILY COMMUNICATION