Garmin GPSMAP 188C Owner's Manual

Also see for GPSMAP 188 Sounder: Declaration of conformity Declaration of conformity Owner's manual and reference guide Specifications

Contents

Garmin GPSMAP 188C Owner's Manual Manual pdf 78 page image

72 GPSMAP 188/188C Sounder Owner’s ManualM AIN MENU > C OMM TABComm (Communications) TabThe Communications tab controls the input/output format usedwhen connecting your GPSMAP 188/188C Sounder to externalNMEA devices, a DGPS beacon receiver, a personal computer, oranother Garmin unit.NOTE: If a DGPS receiver is used, WAAS capability isautomatically turned to off. See pages 98 and 99 for wiring andNMEA version information.The unit supports two input/output ports.Port 1• Garmin Data Transfer—the proprietary format used toupload/download MapSource data, exchange waypoint,route, track, almanac, and proximity data with a PC oranother Garmin unit. When you select Garmin DataTransfer, there are 11 Transfer Modes to choose from:Host, Request Almanac, Request Proximity, Request Routes,Request Tracks, Request Waypoints, Send Almanac, SendProximity, Send Routes, Send Tracks, and Send Waypoints.• NMEA In/NMEA Out—supports the input/output ofstandard NMEA 0183 data, and sonar NMEA input supportfor the DPT, MTW, and VHW sentences.• None—provides no interfacing capabilities.Port 2• Garmin DGPS—supports connections with a Garmin DGPSbeacon receiver.• Other DGPS—supports DGPS input using a standardRTCM format, without any output capabilities.• NMEA In/NMEA Out—supports the input/output ofstandard NMEA 0183 data, and sonar NMEA support for theDBT, DPT, MTW, and VHW sentences. You can also adjustthe NMEA output.• RTCM In/NMEA Out—supports Differential GPS (DGPS)input using a standard RTCM format and also providesNMEA 0183 output.• None—provides no interfacing capabilities.NOTE: The GPSMAP 188/188C can only send DBT and DPTNMEA sentences. It cannot input DBT and DPT sentences.