Operation Manual

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Operations
3.5.25SeaTalk Operation
The RAY230/RAY230E can receive SeaTalk position and time information
from any SeaTalk capable device. As with NMEA data, if the position
information becomes invalid or is not present, you will be prompted to
manually input position data.
3.5.26Digital Selective Calling (DSC)
Digital Selective Calling (DSC) operation includes the following:
1. Transmitting/Receiving an Individual Call
(including semi-automatic ship to shore phone calls)
2. Transmitting/Receiving a Group Call
3. Transmitting/Receiving an All Ships Call
4. Transmitting/Receiving a Distress Call
5. Receiving a Distress Relay Call
With the RAY230 and RAY230E, DSC transmission and reception occurs
on Channel 70. Actually, the RAY230/E has a separate receiver exclusively
for Channel 70 so that even if receiving under normal operation, the unit
can quickly switch over to Channel 70 upon receiving a DSC signal. When
the DSC signal is received, the unit performs the corresponding operation.
If the radio is transmitting, however, receiving on Channel 70 is disabled.
Transmitting an Individual Call
Press the INDV key to initiate the call data setup operation. After setting
the call data, press the PTT switch to send the call at a transmission output
of 1W. The following describes the two types of calling operations:
Individual Ship's (ship-to-ship) Call and Shore station (ship-to-shore) Call.
3.5.26.1 Individual Call to another Ship (Ship-to-Ship)
To call another ship, you must select the Working Channel and a specific
MMSI number. The MMSI number is selected either manually or from a
Phonebook list of preprogrammed numbers specified using the MENU
function. To cancel the call, press and hold the CLR key for 3 seconds.
RAY230_sect3_3.p65 7/13/2001, 1:42 PM31