The signal L 2330 would be hoisted as follows:
In this case, the SECOND SUBSTITUTE follows
a numeral pennant and, therefore, can only repeat the
second numeral in the group.
No substitute may be used more than once in the
same group. For example, the signal AABA would be
The FIRST SUBSTITUTE, used to repeat the first
A, cannot be used again. But, having been used it is
equivalent to having hoisted A as the second flag.
Consequently, it is the second flag that is required to
be repeated as the last flag of the group. Hence, the
SECOND SUBSTITUTE is used.
When the ANSWER pennant is used as a decimal
point, it is disregarded in determining the substitute to
Names in the text of a signal are spelled out by
means of alphabet flags. The signal YZ"The words
which follow are in plain language"can be used, if
FLASHING LIGHT SIGNALING
A signal made by a flashing light is divided into
the following parts:
CallConsists of the general call or identity
signal of the station to be called. It is answered
with the answering signal.
Identity Transmitting station makes DE
followed by its identity signal or name. This is
repeated back by the receiving station, which
then signals its own identity signal or name.
This also is repeated back by the transmitting
TextConsists of plain language or Code
groups. When Code groups are to be used, they
should be preceded by the signal YU. Words of
plain language may also be in the text when the
signal includes names, places, and so on. Receipt
of each word or group is acknowledged by T.
4. EndingConsists of ending signal AR, which
is answered by R.
If the entire text is in plain language, the same
procedure is followed. Call and identity may be
omitted when two stations have established
communications and have already exchanged signals.
Use of Procedure Signals and Signs
The following is the list of procedure signals for
flashing light transmissions.
All after...(used after the repeat signal (RPT))
means Repeat all after....
All before...(used after the repeat signal (RPT))
means Repeat all before....
Ending signal or end of transmission or signal.
Waiting signal or period.
All between...and... (used after the Repeat signal
(RPT)) means Repeat all between...and....
AffirmativeYES or The significance of the
previous group should be read in the affirmative."
What is tbe name or identity signal of your vessel (or
From... (used to precede the name or identity signal
of the calling station.)
I wish to communicate with you or Invitation to
NegativeNO or The significance of the previous
group should be read in tbe negative. When used in
voice transmission the pronunciation should be NO.
Acknowledging a correct repetition or It is correct.
Interrogative or The significance of the previous
group should be read as a question.
Received or I have received your last signal.
Repeat signal I repeat or Repeat what you have
sent or Repeat what you have received.
Word or group after...(used after the "Repeat signal
(RPT)) means Repeat word or group after....
"Word or group before..." (used after the "Repeat
signal" (RPT)) means Repeat word or group
Although the use of these signals is self-
explanatory, the following notes might be found