22
Detail
•
When turning off the VHF using the
button, the VHF - for regulatory reasons-
will power up in the default language (English) mode when again turned on,
irrespective of which language selection had been made prior to turning off the VHF.
•
The following sequence of key strokes will select the default language (except when
the VHF is in distress state – waiting for a distress acknowledgement):
Internationally recognized abbreviations such as the geographical directions (N, S, E, W),
DSC symbol notations (Ack. RQ, Ack. BQ and EOS) etc. are maintained in all the language
packages.
4.8.4
Privacy talk mode
It is possible to configure the radio to be used for a certain level of privacy. Privacy mode is
only applicable if the system is installed with CU5000 remote CU unit(s).
In privacy mode all received voice (speaker and earpiece) will be muted to the CU5000
remote units when the transceiver handset is lifted (“OC” is displayed in CU5000 display).
An incoming alarm sound will overrule privacy mode.
Privacy mode is enabled/disabled via menu 4.3.3.
4.9
Voice scrambler
For the RT5022/RT5020 products a voice scrambling option is available. The voice scram-
bling option is enabled by entering of a pin-code (key) into the VHF transceiver. This pin
code is uniquely matched to the serial number of the VHF, i.e. one specific pin code will
enable the scrambling option in one specific VHF only.
Once in possession of the required pin code the scrambling option is enabled from the menu
point
Scrambling Pin Code in the System Setup menu (4.6.5). The 10-digit pin code is
entered from the transceiver keypad.
When the pin code has been entered and the scrambling option enabled, the scrambling
feature remains permanently available for selection.
For details on how to obtain the scrambling feature for your SAILOR RT5022/RT5020 VHF,
contact your local Thrane & Thrane representative.
4.9.1
Using the voice scrambler
Voice scrambling is an application that allows for two stations to set up a scrambled voice
conversation on a working channel. This means a conversation that prevents any other
station from listening to that conversation.
The synchronization key between the two parties is simply calculated from the opponents
MMSI number. This means no public key is necessary. The scrambled call can be set up
immediately between two RT5022/RT5020, if both are having the scrambler application
enabled (scramble pin code is set).No public key is necessary.
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Summary of Contents for RT5022 VHF DSC
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