West Marine VHF580 사용자 설명서
50
nMea Operation
This radio supports NMEA0183 version 4.01.
NMEA Input
If you have difficulty getting your radio to receive data from your GPS receiver, check the
NMEA Input
If you have difficulty getting your radio to receive data from your GPS receiver, check the
device’s configuration. It should be set to the following parameters:
Baud rate
4800 bps
Data bits
8
Parity
None
Stop bits
1
Data amplitude
Over 2.0 V
Drive capability
Over 10 mA
The radio supports RMC, GLL, GNS, GGA and ZDA sentences. When these sentences are
received, the radio displays latitude/longitude, date, time, course, and speed. If any sentence
except an RMC or GLL sentence is received, the radio uses the information based on the
following priority order.
x
Status:RMC > GLL > GNS > GGA
x
Latitude/Longitude:RMC > GLL > GNS > GGA
x
UTC Time: RMC > GLL > GNS > GGA > ZDA
x
Date: RMC > ZDA
x
Speed / Course:RMC
#
nOte 1: if the radio receives only a gll sentence, the radio does not display the current
speed, course, and date.
speed, course, and date.
#
note 2: if the radio receives both rMC and gll sentences, the radio uses only the rMC
sentence.
sentence.
#
note 3: status data is used to check whether the gps data is valid or invalid.
nMea Output
When the radio receives a DSC call (Distress, Position Reply, or Position Send), it outputs a
DSC/DSE sentence from the NMEA output port.
#
nOte: When the radio receives a distress call, it outputs a sentence in the following format.
x
$CDDSC,12,3081234000,,07,00,0354013946,0657,,,S,E*6D
x
$CDDSE,1,1,A,3081234000,00,60875646*13
regulations and safety Warnings
Maritime radio services operation
Warning! This transmitter will operate on channels/frequencies that have restricted use in
the United States. The channel assignments include frequencies assigned for exclusive use of
the U.S. Coast Guard, use in Canada, and use in international waters. Operation on these fre-
quencies without proper authorization is strictly forbidden. See the channel tables beginning
on page
41
for a list of available channels and their uses. If you are still not certain which
channels to use, see the FCC maritime radio page at the FCC website (http:// wireless.fcc.