Garmin GPS 2 Plus Manual

The Garmin GPS 2 Plus is a high-performance marine GPS receiver designed for navigation on water. It features a waterproof design, high-sensitivity GPS receiver, NMEA 0183 output, external antenna capability, and intuitive interface for marine navigation. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

Features at a Glance

Key components: Waterproof GPS receiver unit, external antenna port, power/data cable, mounting hardware.

Installation

Unpack and inspect contents. Choose suitable mounting location on vessel.

1. Select mounting location: Choose area with clear view of sky, protected from physical damage.
2. Mount unit: Use provided hardware for flush or bracket mounting.
3. Connect power: Connect red wire to positive DC, black wire to negative/ground.
4. Connect antenna: Attach external antenna if using (optional).
5. Connect NMEA devices: Wire NMEA output to compatible chartplotter or autopilot.

WARNING! Ensure all connections are waterproofed. Disconnect power before installation.

First-Time Setup

Power on GPS; allow time for satellite acquisition.

1. Initial satellite acquisition: Place unit with clear sky view, power on, wait for GPS fix (typically 1-5 minutes).
2. Configure NMEA output: Set baud rate (4800 default) and sentences as needed.
3. Set position format: Select coordinate format (Lat/Lon, UTM, etc.).
4. Configure units: Set nautical miles/knots or statute miles/mph.
5. Set time: Configure time zone and daylight saving settings.

CAUTION! Ensure proper ventilation around unit. Do not block antenna view.

Specifications

• GPS Receiver: High-sensitivity, 12 parallel channel
• Update Rate: 1 second continuous
• Accuracy: Position: <10 meters RMS, Velocity: 0.1 knot RMS
• Acquisition Time: Hot start: <15 seconds, Cold start: <45 seconds
• Interfaces: NMEA 0183 v3.01, RS-422
• Power Requirements: 10-32V DC, 1.5W typical
• Waterproof Rating: IPX7 (submersible to 1 meter for 30 minutes)
• Operating Temperature: -15°C to 70°C (5°F to 158°F)
• Storage Temperature: -40°C to 85°C (-40°F to 185°F)
• Dimensions: 96mm x 96mm x 34mm (3.8" x 3.8" x 1.3")

Controls and Settings

Configure via connected chartplotter or NMEA commands. LED indicators show status.

LED Indicators: Power (green), GPS Fix (flashing green = acquiring, solid green = fix), Data (yellow = NMEA output active).

Configuration settings: Baud rate (4800, 9600, 38400), NMEA sentences (GGA, GLL, GSA, GSV, RMC, VTG, ZDA), Position format, Units, Time format, Datum (WGS-84 default).

Connecting Devices

Connect to chartplotters, autopilots, fishfinders, and other NMEA 0183 compatible devices.

1. Identify NMEA ports on receiving device (IN+ and IN-).
2. Connect GPS NMEA OUT+ to device IN+.
3. Connect GPS NMEA OUT- to device IN-.
4. Set matching baud rate on both devices.
5. Verify data transmission with LED indicator.

Tip: Use marine-grade wire and proper crimp connectors for all connections.

Navigation Operation

GPS provides continuous position, speed, and heading data to connected devices.

1. Power on: Connect to power, green power LED illuminates.
2. Satellite acquisition: GPS fix LED flashes during acquisition, solid when fix obtained.
3. Position data: Latitude, longitude, altitude, speed, and course provided via NMEA.
4. Waypoint navigation: Create and navigate to waypoints via connected chartplotter.
5. Route following: Follow pre-planned routes with turn-by-turn guidance.
6. Track recording: Record vessel's path for later review or retracing.

WARNING! GPS is an aid to navigation only. Always use traditional navigation methods as backup.

Waypoints & Routes

Create and manage waypoints and routes through connected chartplotter.

Waypoint creation: Mark current position or enter coordinates manually. Waypoint management: Edit names, symbols, coordinates. Route planning: Create routes by connecting waypoints in sequence. Route navigation: Follow routes with course deviation indication.

Care & Maintenance

Regular maintenance ensures optimal performance and longevity.

1. Clean exterior: Use fresh water and mild soap, rinse thoroughly.
2. Check connections: Inspect for corrosion, ensure waterproof integrity.
3. Verify mounting: Ensure unit remains securely mounted.
4. Update firmware: Check Garmin website for updates periodically.

CAUTION! Do not use high-pressure water spray. Do not use solvents or abrasive cleaners.

Regulatory Information

FCC Compliance: This device complies with Part 15 of FCC Rules. CE Compliance: Meets European Union requirements. RoHS Compliant: Contains no hazardous substances. Copyright © Garmin Ltd. or its subsidiaries. For support, visit www.garmin.com or contact Garmin Product Support.

Troubleshooting

Reset: Disconnect power for 30 seconds to perform soft reset.

Service: Contact Garmin Product Support for warranty and repair information.