User's Manual Part 1

Instruction manual
37
E04572
5.2 Security mode (voice scrambler)
For additional security, a voice scrambler function is available
as an optional accessory. The scrambler uses frequency inver-
sion to encrypt the transmission and will allow secure trans-
mission between compatible radios. (See also section 4.3.6.)
To enter security mode, press S
HIFT
followed by 16. The display
will show “NO SCRM”, if the scrambler function is not enabled
in the system. If security mode is enabled, the display will
show “SEC” in the top left-hand corner of the LCD.
To exit press S
HIFT followed by 16 again, or ON/C.
5.3 Losing NMEA data
NMEA data may be processed by the Dual Station RS81, in
order to transmit the boat’s position if a Distress Alert is initiat-
ed. Note, that this is only possible if the second handset installed is
an AHS82.
One minute after NMEA data is lost, the station speakers will
sound an alarm and the display will show “NMEA LOST”,
until the operator confirms the warning by pressing either the
O
N/C or the OK key.
5.4 Intercom
If the system has two handsets connected, it is possible to make
an intercom call from one handset to the other.
5.4.1 Making an intercom call
Press SHIFT followed by the SQ key to enter intercom mode.
The display will show “SHIFT”, then “INTERCOM” (Fig 5.2).
12
I N T ERCOM
A
B
INT
Fig 5.2 - Making an intercom call
Press O
K, or use the PTT key to initiate intercom mode. This
will trigger the intercom alarm.