Garmin 420 사용자 매뉴얼

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To change the communications settings, from the Home screen, 

select 

 > 

.

Serial Port 1—select the input/output format to use when 

connecting your unit to external NMEA devices, a personal 

computer, or other Garmin devices.

• 

Garmin Data Transfer—the proprietary format used to 

upload, download, or exchange data with a computer or 

another Garmin unit.

•  Garmin Remote Sonar—allows you to connect a Garmin 

GSD 21 or GSD 22 serially.

•  NMEA In/NMEA Out—supports the input or output of 

standard NMEA 0183 data, DSC, and sonar NMEA input 

support for the DPT, MTW, and VHW sentences. 

•  NMEA High Speed—supports the input or output of standard 

0183 data for most AIS receivers.

•  None—provides no interfacing capabilities.

NMEA Setup—enable or disable NMEA output sentences for 

sounder, route, system, and Garmin NMEA settings.

1.  From the Home screen, select

>

>

.

2.  Select a setting (

,

,

, or

).

3.  Select a NMEA output sentence.

4.  Select

to disable, or select

to enable the NMEA

output sentence.

Posn. Precision—adjust the number of digits (

, 

, or 

) to the right of the decimal point for 

transmission of NMEA output.
Waypoint—select how the unit outputs waypoint identifiers (

or 

).