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Device

Specification

Measurement

Max. routes

100

Max. active track points 50,000 points, 50 saved tracks
Memory card

2 SD

®

 card slots; 32 GB max. 

card size

Wireless frequency and 
protocols

Wi

Fi

®

, ANT

®

, and Bluetooth

®

technologies
2.4 GHz @ 17.6 dBm nominal

Seven-inch 
models

Dimensions (W × H × 
D)

224 × 142.5 × 53.9 mm 
(8 

13

/

16

 × 5 

5

/

8

 × 2 

1

/

8

 in.)

Display size (W × H)

154 × 86 mm (6.1 × 3.4 in.)

Weight

0.86 kg (1.9 lb.)

Compass-safe distance 71 cm (28  in.)
Max. power usage at 
10 Vdc

24 W

Typical current draw at 
12 Vdc

1.5 A

Max. current draw at 
12 Vdc

2.0 A

Nine-inch 
models

Dimensions (W × H × 
D)

256.4 × 162.3 × 52.5 mm 
(10 

1

/

8

 × 6 

3

/

8

 × 2 

1

/

16

 in.)

Display size (W × H)

197 × 114 mm (7.74 × 
4.49 in.)

Weight

1.14 kg (2.5 lb.)

Compass-safe distance 76 cm (30  in.)
Max. power usage at 
10 Vdc

27 W

Typical current draw at 
12 Vdc

1.3 A

Max. current draw at 
12 Vdc

2.3 A

Sonar models Frequencies

2

Traditional: 50/200, 77/200, 
83/200 kHz
Single Channel CHIRP: from 
40 to 240 kHz
Garmin ClearVü CHIRP: 
260/455/800 kHz
(dependent on transducer)

Transmit power 
(RMS)

3

CHIRP: 1000 W
Garmin ClearVü and SideVü 
CHIRP: 500 W

Depth

4

5,000 ft. at 1 kW

1

The device withstands incidental exposure to water of up to 1 m 

for up to 30 min. For more information, go to 

www.garmin.com

/waterrating

.

2

Dependent upon the transducer.

3

Dependent upon the transducer rating and depth.

4

Dependent upon the transducer, water salinity, bottom type, 

and other water conditions.

NMEA 2000 PGN Information

Transmit and Receive

PGN

Description

059392

ISO acknowledgment

059904

ISO request

060160

ISO transport protocol: Data transfer

060416

ISO transport protocol: Connection management

060928

ISO address claimed

065240

Commanded address

126208

Request group function

126996

Product information

126998

Configuration information

127237

Heading/track control

PGN

Description

127245

Rudder

127250

Vessel heading

127258

Magnetic variance

127488

Engine parameters: Rapid update

127489

Engine parameters: Dynamic

127493

Transmission parameters: Dynamic

127505

Fluid level

127508

Battery status

128259

Speed: Water referenced

128267

Water depth

129025

Position: Rapid update

129026

COG and SOG: Rapid update

129029

GNSS position data

129283

Cross track error

129284

Navigation data

129539

GNSS DOPs

129540

GNSS satellites in view

130060

Label

130306

Wind data

130310

Environmental parameters (obsolete)

130311

Environmental parameters (obsolete)

130312

Temperature (obsolete)

Transmit

PGN

Description

126464

Transmit and receive PGN list group function

126984

Alert Response

127497

Trip parameters: Engine

Receive

PGN

Description

065030

Generator average basic AC quantities (GAAC)

126983

Alert

126985

Alert text

126987

Alert threshold

126988

Alert value

126992

System time

127251

Rate of turn

127257

Attitude

127498

Engine parameters: Static

127503

AC input status (obsolete)

127504

AC output status (obsolete)

127506

DC detailed status

127507

Charger status

127509

Inverter status

128000

Nautical leeway angle

128275

Distance log

129038

AIS class A position report

129039

AIS class B position report

129040

AIS class B extended position report

129044

Datum

129285

Navigation: Route, waypoint information

129794

AIS class A static and voyage related data

129798

AIS SAR aircraft position report

129799

Radio frequency/mode/power

129802

AIS safety-related broadcast message

129808

DSC call Information

6

Summary of Contents for GPSMAP 702 Series

Page 1: ...ork register the new devices Tools Needed Drill Drill bits appropriate for the device and mounting style Mounting Style Drill Bit Sizes Bail with included M4 wood screws 3 2 mm 1 8 in Flush 13 mm 1 2...

Page 2: ...ly in the cutout ensure the mounting holes on the device line up with the larger holes on the template 9 If the mounting holes on the device do not line up mark the new hole locations 10Based on your...

Page 3: ...ditional chassis grounding in most installation situations If you experience interference the grounding screw on the housing can be used to connect the device to the water ground of the boat to help a...

Page 4: ...to power ground The power cable from the chartplotter and the NMEA 0183 devices must be connected to a common power ground The internal NMEA 0183 ports and communication protocols are configured on th...

Page 5: ...onnecting the device to a lamp or horn observe these considerations The alarm circuit switches to a low voltage state when the alarm sounds The maximum current is 1 A and a relay is needed to limit th...

Page 6: ...protocol Connection management 060928 ISO address claimed 065240 Commanded address 126208 Request group function 126996 Product information 126998 Configuration information 127237 Heading track contr...

Page 7: ...BT DBT Depth below transducer SDDPT DPT Depth SDMTW MTW Water temperature SDVHW VHW Water speed and heading Receive Sentence Description DPT Depth DBT Depth below transducer MTW Water temperature VHW...

Page 8: ...support garmin com TA 2016 3368 TA 2017 085...

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