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 0003 00
TM 11-5895-1847-12&P
The scrambler does not make a channel private. The channel must still be shared with other traffic. A unique feature
of the scrambler allows the working channel to be changed by either party and the other party's transceiver will
change channels automatically to stay in contact. This feature works with group scrambled calls also. If anyone in the
group changes channels, all others in the group will automatically switch to the new channel.
DSC Standby
The DSC Standby function allows the transceiver to reply to DSC calls with the UNATTENDED message and log the
calls for return at a more convenient time. When set to the DSC Standby mode, voice traffic may still be monitored on
any selected channel.
All Ships Call
The all ships call function allows contact to be established with other DSC equipped vessels without having their
mobile service identity number in the calling ships directory. Also, priority for the call is designated as Urgency,
Safety, or Routine. Select the primary mode by exiting any other active function.
Sending Position
The send position function allows your vessel's position coordinates to be sent to another vessel as a DSC call,
thereby avoiding a voice announcement of your position. Position information is obtained from the
AN/PSN-11(V)1 PLGR.
Request Position
The request position function allows you to interrogate another vessel to determine its position coordinates. The other
vessel must have an operating navigation receiver connected to its DSC transceiver and must not have its transceiver
set to deny position requests.
Station Number
The STATION NUMBER mode is used to allow multiple DSC transceivers to operate on a single vessel with one
vessel ID number. In a single radio installation, the STATION NUMBER would be "0". In a multiple transceiver
installation, the STATION NUMBER should be set from 1 to 5. Station 1 is the primary radio, and station 2 thru 5 are
used as redundant backups. If a DSC call is placed to a vessel and station 1 cannot respond, station 2 will respond.
STATION NUMBER "B" specifies a radio to be a voice only radio and not to respond to any calls including
distress calls.
Security Code
The SECURITY CODE feature is provided to prevent unauthorized use of the DSC. Once a security code has been
entered, the same code must be entered each time the transceiver is turned on. The code may be changed or deleted at
any time by any authorized user. If three attempts are made to enter an incorrect code, the transceiver will operate in
a limited manner to provide minimal effective use in an emergency. Under these circumstances, only PRIMARY
MODE, EMERGENCY MODE and the WEATHER MODE will operate. Attempts to select other modes will sound
the three beep error tone.
Number of People
This option is used to declare the number of people on the vessel and is attached to the distress call information that is
sent when a distress call is activated.
0003 00 8
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