Nmea Operation - Raymarine RAY230E Owner's Handbook Manual

3-30
3) If only Handset 2 is Off-Hook.
3.5.24 3.5.24 3.5.24
3.5.24 3.5.24
The RAY230/RAY230/E can receive valid position and time information
from an external device from an NMEA signal. This information can be
broadcast during a DSC call. See section 3.5.26.
Operation at Power Up
At power up, the SeaTalk line is monitored for 1 minute. If a signal is
detected, the NMEA line is not monitored. If no signal is detected on the
SeaTalk line, the radio is put in monitor mode and switches over to the
NMEA line. If no NMEA data is input during the 1 minute monitor time at
power up, all the position fields are set to 9's and the time fields are set to
8's. An error alert tone sounds to urge manual entry (see Section 3.5.30.3.2)
and the NMEA indicator disappears.
Validating NMEA Data
When an NMEA signal is received, it must be determined whether the data
is valid. Receivable commands are limited to the position commands of
GGA, GLL, RMC, and RMA and to the status commands of RMC, APB,
GLL, and APA. If valid, the data is input and the NMEA indicator is
displayed on the LCD.
Operation with Input Data Error
If position data becomes invalid or is not detected, the NMEA indicator
flashes and an alert tone of 1-minute duration is sounded at 4 hour intervals
to urge manual input of positional data. If no manual input was made
during the prior 23.5 hours, all the position data is set to 9's and all the time
data to 8's.
Handset 1

NMEA Operation

NMEA Operation NMEA Operation
NMEA Operation NMEA Operation
Handset 2
Operations
Handset 3