communication instructions radio telegraph procedure

UNCLASSIFIED ACP124 (D)
4 – EW Friendly or enemy EW/EMCON – intentions, progress,
or results. Intention to employ ECM; results of friendly
or enemy ECM; objectives TF ECM; results of friendly
or enemy ECCM; results of ESM; present or intended
EMCON policy; equipment affected by EMCON policy.
5 – PERSONNEL Friendly or enemy key personnel. Movement or identity
of friendly or enemy officers, visitors, commanders;
movement of key maintenance personnel indicating
equipment limitations.
6 – COMSEC Friendly or enemy COMSEC breaches. Linkage of
codes or codewords with plain langauge; compromise of
changing frequencies or linkage with line
number/circuit designators; linkage of changing call
signs with previous call signs or units; compromise of
encrypted/classified call signs; incorrect authentication
procedure.
7 – WRONG CIRCUIT Inappropriate transmission. Information requested,
transmitted or about to be transmitted which should not
be passed on the subject circuit because it either requires
greater security protection or it is not appropriate to the
purpose for which the circuit is provided.
8 – SPARE For assignment as required.
9 - SPARE For assignment as required.
10 – SPARE For assignment as required.
104. USE OF RADIO TELEGRAPH PROCEDURE
a. The Radiotelegraph Procedure prescribed herein shall be used in all transmissions over
military radio and line circuits which employ International Morse Code. When messages in commercial
form are handled by military systems, the procedure contained herein shall be used in the calling and
routing instructions.
b. When communicating with non-military ships or stations, International
Telecommunications Union (ITU) or International Civil Aviation Organization (ICAO) procedure, as
appropriate, will be used. These procedure are contained in the ITU Radio Regulations and the
appropriate ICAO publications.
105. DEFINITION OF A RADIO NET
a. A RADIO NET is an organization of radio stations capable of direct communication on a
common frequency.
b. NET CONTROL STATION: A station designated to control traffic and endorce
circuit discipline within a given net.
c. FREE NET: A net in which any station may communicate with any other station in the
same net without first obtaining permission from the NET CONTROL STATION to do so.
UNCLASSIFIED 1-3