Simrad RS20 User Manual page 21

User MMSI
Enter an MMSI number to access the radio's DSC functionality. This
unique identifier must be supplied a local radio spectrum authority.
DO NOT enter a random 'made up' number.
¼ Note:
Contact a Simrad dealer if you need to change your MMSI
after initial input.
ATIS function (EU ATIS radios only)
ATIS must be enabled when navigating inland waterways in
signatory countries of the RAINWAT agreement. It should NOT be
used outside these regions. DSC functionality is not possible when
ATIS is turned on.
Sea/Inland mode (EU ATIS radios only)
Toggles between DSC (Sea) and ATIS (Inland) modes. Does not allow
both to be selected at the same time.
ATIS ID (EU ATIS radios only)
Enter an ATIS number to access the radio's ATIS functionality. This
unique identifier must be supplied a local radio spectrum authority.
DO NOT enter a random 'made up' number.
¼ Note:
Contact a Simrad dealer if you need to change your ATIS ID
after initial input.
Individual acknowledge ("INDIVIDUAL ACK")
The radio can be configured to automatically acknowledge an
incoming 'individual' call, or require manual intervention:
AUTO
After a 15 second delay, radio will switch to requested channel, and
send an automatic acknowledgement, ready for conversation.
US model default.
MANUAL
Operator must manually choose to send acknowledgement, as well
as change to requested channel. EU model default.
¼ Note:
this does not apply for calls types other than 'Individual'.
The radio menus | RS20 operator manual
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