Garmin GPSMAP 192C Manual

The Garmin GPSMAP 192C is a color marine GPS chartplotter featuring a high-resolution 256-color display, built-in worldwide basemap, WAAS-enabled GPS receiver, waterproof design (IPX7), NMEA 0183 interface, external antenna capability, track plotting, waypoint management, and detailed marine navigation functions. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Connecting Devices 7. Navigation Functions 8. Waypoints & Routes 9. Care & Maintenance 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Color LCD display, Power/Data cable, External antenna connector, Waterproof housing, Front panel buttons, NMEA 0183 interface.

FeatureDescription
DisplayHigh-resolution 256-color LCD, sunlight readable
GPS Receiver12-channel WAAS-enabled, fast acquisition
BasemapBuilt-in worldwide marine basemap
Waterproof RatingIPX7 (submersible 1 meter for 30 minutes)
Power Input10-40 VDC, marine power compatible
NMEA 0183Serial interface for autopilot/depth sounder
External AntennaMCX connector for optional GA 29 antenna
Waypoints3000 user waypoints with name/symbol
Routes50 reversible routes with up to 50 points each
Tracks10 saved tracks, 3000 points each

Installation

Unpack and inspect contents. Choose mounting location with clear GPS view.

  1. Mount unit: Use included bracket; secure to flat surface with screws.
  2. Connect power: Route power/data cable to 10-40 VDC source; observe polarity.
  3. Connect antenna: Attach external antenna if needed for better reception.
  4. Connect NMEA devices: Wire to NMEA 0183 interface for data sharing.
  5. Secure cables: Use cable ties; ensure waterproof seals are intact.

WARNING! Ensure power is off during installation. Drill holes carefully to avoid damaging vessel structure.

First-Time Setup

Power on unit; follow initial prompts.

  1. Acquire GPS signal: Place unit with clear sky view; wait for satellite acquisition.
  2. Set language: In SETUP menu, select ENGLISH (default).
  3. Set units: Choose nautical/miles/kilometers, depth, temperature.
  4. Set time: Configure time zone, format (12/24 hour), daylight saving.
  5. Calibrate compass: Follow on-screen instructions if equipped.
  6. Configure alarms: Set anchor drag, arrival, off-course alarms as needed.

CAUTION! Keep magnetic compasses away during installation to avoid interference.

Specifications

Controls and Settings

Front Panel: POWER, PAGE, ENTER/MARK, ROCKER key (up/down/left/right), QUIT, ZOOM IN/OUT.

Menu Navigation: Use PAGE to cycle screens; ENTER to select; ROCKER to navigate; QUIT to exit.

Main Pages: Map, Highway, Navigation Data, Active Route, Satellite Status, Main Menu.

Setup Menu: System (contrast, backlight, beeps), Units, Time, Alarms, NMEA, Interface, System Info.

Map Setup: Detail, Orientation (North Up/Course Up), Points, Tracks, Data Fields.

Connecting Devices

NMEA 0183: Connect to autopilot, depth sounder, VHF radio for position data.

  1. Identify NMEA wires: Power/data cable includes NMEA IN/OUT wires.
  2. Connect to device: Follow device manual for NMEA wiring.
  3. Configure NMEA: Enable sentences needed (GGA, RMC, etc.) in Interface menu.
  4. External antenna: Connect optional GA 29 antenna for improved reception.

Tip: Use marine-grade connectors and seal against moisture.

Navigation Functions

Basic navigation: Follow on-screen map and data.

  1. View position: Current position shown on map with boat icon.
  2. Navigate to waypoint: Select waypoint, choose GOTO.
  3. Follow route: Activate route; follow course line.
  4. Data screens: View speed, course, bearing, distance, ETA.
  5. Highway screen: Visual course indicator for precise steering.
  6. Track plot: Record track; view breadcrumb trail.
  7. MOB (Man Overboard): Press ENTER/MARK twice quickly to mark MOB position.
  8. Zoom: Use ZOOM keys to change map scale.

WARNING! GPS is aid to navigation only; always use traditional methods and charts.

Waypoints & Routes

Create waypoint: Press ENTER/MARK at location; edit name/symbol/save.

Edit waypoint: Menu > Waypoints > Select > Edit.

Create route: Menu > Routes > New > Add points from waypoints list.

Navigate route: Select route > Activate.

Reverse route: Menu > Routes > Select > Reverse.

Delete waypoints/routes: Select item > Menu > Delete.

Care & Maintenance

Clean with fresh water and mild soap; use soft cloth. Avoid solvents, abrasives.

Store in dry place when not in use. Check cable connections periodically for corrosion.

CAUTION! Do not use high-pressure water spray. Ensure power is disconnected before cleaning connectors.

Regulatory Information

FCC Part 15: Class B digital device; complies with limits for marine use. CE compliant. Contains GPS technology subject to export regulations. Copyright © Garmin Ltd. For support, visit www.garmin.com or contact Garmin Product Support.

Troubleshooting

SymptomPossible CauseCorrective Action
No powerPower connectionCheck fuse (2A); verify 10-40 VDC at cable; check polarity.
Poor GPS receptionAntenna obstructionEnsure clear view of sky; check antenna connection; try external antenna.
Display blank/dimBacklight/contrastAdjust contrast/backlight in Setup; check power voltage.
NMEA data not receivedWiring/configurationVerify wiring; enable correct NMEA sentences in Interface menu.
Unit freezesSoftware issueDisconnect power for 30 seconds; reconnect. If persistent, contact support.

Reset: Hold PAGE + POWER during startup for master reset (erases user data).

Service: Contact Garmin Product Support or authorized marine dealer.

Garmin GPSMAP 192C Manual © - All Rights Reserved 2025