Garmin GPS 162 Manual

The Garmin GPS 162 is a marine GPS chartplotter designed for navigation on waterways. It features a high-resolution display, built-in worldwide basemap, waterproof construction (IPX7), NMEA 0183 interface, waypoint and route management, track logging, man overboard (MOB) function, and external antenna capability. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

Features at a Glance

Key components: Waterproof case, LCD display, Power/data cable, External antenna port, NMEA 0183 interface, Mounting bracket.

Feature	Description
Display	High-contrast LCD, 4-inch diagonal, 320x240 pixels
Waterproof rating	IPX7 (submersible to 1 meter for 30 minutes)
GPS receiver	12 parallel channel, WAAS enabled
Basemap	Built-in worldwide map with marine navigation aids
Waypoints	500 user waypoints with name and symbol
Routes	20 reversible routes with up to 50 waypoints each
Tracks	10 saved tracks, 10,000 track points
NMEA 0183	Interface for connecting to autopilots, sounders, etc.
Power input	10-40 VDC, 1.5A max
Antenna	Built-in patch antenna; external antenna capable

Installation

Unpack and inspect contents. Choose mounting location.

1. Mount unit: Use provided bracket; secure to flat surface using screws.
2. Connect power: Route power/data cable to 10-40 VDC source; observe polarity.
3. Connect external antenna (optional): Attach to rear port if needed.
4. Connect NMEA devices: Wire to NMEA 0183 interface per diagram.
5. Secure cables: Use cable ties; ensure waterproof seals are intact.

WARNING! Ensure power is off during installation. Do not mount where it obstructs view.

First-Time Setup

Power on unit; follow initial prompts.

1. Acquire GPS signal: Place unit with clear view of sky; wait for satellite acquisition.
2. Set language: In SETUP menu, select ENGLISH (default).
3. Set units: Choose nautical miles/knots, statute miles/MPH, or kilometers/KPH.
4. Set time: Choose local time or UTC; set daylight saving if applicable.
5. Calibrate compass (if interfaced): Follow on-screen instructions.

CAUTION! Ensure secure mounting before operation on moving vessel.

Specifications

• Display: 4-inch LCD, 320x240 pixels, FSTN, LED backlight.
• GPS: 12-channel, WAAS/EGNOS capable.
• Waypoints: 500 with name/symbol.
• Routes: 20 reversible, 50 waypoints max per route.
• Tracks: 10 saved, 10,000 points.
• Interface: NMEA 0183 (4800 baud), power/data cable.
• Power: 10-40 VDC, 1.5A max.
• Waterproof: IPX7 standard.
• Operating Temp: -15°C to 70°C.
• Dimensions: 15.2 x 10.2 x 5.1 cm.

Controls and Settings

Access menus via PAGE and ENTER keys. Front Panel: POWER, PAGE, ENTER, QUIT, ROCKER key (up/down/left/right).

Display Pages: Map, Highway, Compass, Position, Active Route, Satellite Status.

Setup Menu: Units, Time, Alarms, System, NMEA, Interface. Navigation Settings: Route preferences, Track settings, CDI scale, Arrival alarm. System: Contrast, Backlight, Beeper, Language, Initialize.

Connecting Devices

NMEA 0183: Connect to autopilot, depth sounder, etc. Power: 10-40 VDC source.

1. Turn off power before connecting.
2. Connect NMEA devices: Use shielded cable; connect Tx/Rx lines as needed.
3. Connect power: Red to positive, black to negative; fuse appropriately.
4. Test connections: Power on; verify data in NMEA setup page.

Tip: Use waterproof connectors for all external wiring.

Navigation Functions

Basic navigation: Follow waypoints, routes, and tracks.

1. Go To: Select waypoint; press GOTO to navigate directly.
2. Follow Route: Select route; press NAV to activate.
3. Track Back: Follow saved track in reverse.
4. Man Overboard (MOB): Press and hold GOTO to mark MOB position and navigate back.
5. Data Fields: Customize display with speed, heading, ETA, etc.
6. Alarms: Set anchor drag, arrival, off-course, and proximity alarms.

WARNING! GPS is an aid to navigation; always use traditional methods as backup.

Waypoints & Routes

Create and manage waypoints and routes.

1. Mark waypoint: Press and hold ENTER at current position.
2. Edit waypoint: Select waypoint list; edit name, symbol, position.
3. Create route: Select Route Planner; add waypoints in order.
4. Invert route: Reverse waypoint order for return trip.
5. Navigate route: Select route; press NAV to follow.
6. Track log: Enable track recording; save track for later use.

Note: Waypoints and routes are retained in memory when powered off.

Care & Maintenance

Use damp cloth with mild detergent for cleaning. Do not use harsh chemicals.

CAUTION! Ensure unit is powered off and disconnected before cleaning. Do not submerge connectors.

Regulatory Information

FCC Part 15: Class B digital device; complies with interference limits. CE certified. Copyright © Garmin Ltd. or its subsidiaries. For support, visit www.garmin.com or contact Garmin Product Support.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power	Power connection/fuse	Check voltage at cable; verify fuse; ensure polarity correct.
No GPS signal	Obstruction/antenna	Move to open area; check antenna connection; ensure clear view.
Inaccurate position	Poor satellite geometry	Wait for better satellite alignment; ensure WAAS enabled.
No NMEA data	Wiring/baud rate	Check NMEA wiring; verify baud rate (4800); check device settings.
Display dim	Backlight setting	Adjust backlight in setup menu; check power voltage.
Waypoints lost	Memory reset	Initialize memory only if necessary; waypoints are non-volatile.

Reset: Setup > System > Initialize (use with caution).

Service: Contact Garmin Product Support or authorized service center.