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DOCID: 4002585
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the types of foreign intercept adaptable to machine attack,
and provides the holder with a working knowledge of procedural
methods employed for machine intercept reporting not previously
known.
JTECHINS 1021. With Changes 3, 7, 8. 9, 10. 11 and Annex
TITLE: Classification of Radio Signals and Communications
Systems
CLASSIFICATION: SECRET HVCOO
CONTENT: This publication provides designators for
known communications signals and methods the Non-Morse operators
Signal Analysis Handbook provides descriptions of know communication
signals. The Telegraphic Code Manual provides
combination equivalents for known telegraphic codes.
IMPACT: Access to any of these documents would reveal
the extent of our knowledge of the external parameters and
coding of communications signals. Further. the fact that we
describe si nals and codes
UM n s revea a e
countries' communications.
JTECHI NS 1030. Annex Bra vo
as nowegeo •
these
TITLE: Procedures For Non-Morse Search and Development
(NMSDB) Operations Aboard Technical Research.Ships
CLASSIFICATION: SECRET SAVIN
CONTENT: This document establishes operating procedures
and teChniques for the conduct of NMSDB operations aboard
designated Technical Research Ships (IRS).
IMPACT: The loss of this document is considered serious
since it reveals:
(1) That NMSDB environmental studies are
conducted .trom I --'Ifrom aboard 'IRS and' that TRS
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