Operation Manual

44 Ray54E VHF Radio
➤ To silence the alert tone:
Press any key. Automatic alert tone cancellation takes place after 2 minutes.
➤ To decline the All Ships Call:
Press the CLEAR key. The alert tone is muted, the All Ships Call is interrupted
and the normal screen appears on the display.
➤ To accept the All Ships Call:
Push the CH knob. The alert tone is muted (if you have not already pressed
another key) and the radio switches to channel 16.
If the caller requests changing to an unsupported working channel, INVALID
CHANNEL appears on the LCD. The radio is unable to comply with the
channel change request but the call is registered in the Call Log.
Notes: (1) For All Ships Urgency Calls, the AUTO CH CHG option (see
page 82) determines whether your radio automatically switch-
es to channel 16 to receive the call or instead prompts you to
manually accept or decline the channel change.
(2) Pressing the 16/PLUS key cancels the channel change request
and tunes the radio to channel 16.
(3) If 5 minutes elapse before the All Ships Call is acknowledged or
rejected, the radio automatically declines the incoming call
and the radio reverts to the original channel.
(4) DSC call data is stored in the first available slot in the Call Log,
regardless of whether the call is acknowledged.
(5) To conform with regulations of the Basel Agreement for
radiotelephone service on inland waterways, DSC functions
are disabled when ATIS is active. See ATIS Function on
page 79.