LL272198LSA

For US Military Intelligence at Department of War at Arlington

1 Nov 1939

Weak signal intercepts have been received out of Russia at Ipswich listening station. Signal appears to be in Cyrillic Morse, but is too weak for clear transmission.

On a hunch, Ipswich listening post command sent a request to other listening posts requesting information on a signal received on 23 Aug 1939 at 19.11 hours. Darwin Listening Post and the U.S. Listening Post at Anchorage both confirmed the signal and relayed the following information on origin of signal.

Ipswich: from 19.5 degrees (estimated distance from source of signal: 1900 miles)

Darwin: from 318.3 degrees (estimated distance from source of signal: 6700 miles)

Anchorage: from 349.9 degrees (estimated distance from source of signal: 4815 miles)

Entered into LATLONDB