Garmin International Inc A2552 Manuel D’Utilisation

Input power

GMR 424 and 426:
• Typical: 55 W
• Max.: 160 W
GMR 624 and 626:
• Typical: 65 W
• Max.: 170 W
GMR 1224 and 1226:
• Typical: 90 W
• Max.: 125 W

New radar :
• Typical: 100 W
• Max.: 180 W

Pulse width

For pulse width information, go to the specifications tab for your radar

model on www.garmin.com.

*The radar should be located in a position that is at least this far from people

on the vessel when it is transmitting.
IEC 60936-1, clause 3-27.1, states maximum distances from the antenna at

which radio frequency (RF) levels can be expected.

Type

End-fed slotted waveguide

Horizontal beam width

4 ft. antenna: 1.8 degrees
6 ft. antenna: 1.1 degrees

Horizontal side lobes

-23 dB within ±10 degrees of main
-30 dB outside ±10 degrees of main

Vertical beam width

23º

Antenna gain

4 ft. antenna: 27 dB
6 ft. antenna: 29 dB

Polarization

Horizontal

The radar does not

turn on. The status

LED is not on.

• The power cable may not be connected correctly to the device

or to the battery. Check all connections.

• The inline fuse may have blown. Check the fuse and replace it

if necessary.

• The wire gauge used to extend the power cable may be too

small for the length of the extension. Check the table provided

in the Power Cable Extensions section of these instructions to

make sure the correct wire gauge is used (Power Cable
Extensions, page 4).

• If the radar uses a voltage converter, it may be connected

through an incompatible or third-party voltage converter. Use

only the voltage converter supplied with the radar.

The radar is not

available on the

Garmin device or

on devices

connected to the

Garmin Marine

Network.

• The radar may not be powering on. Check the status LED.
• The device software may not be up-to-date. Update the

software on the device or on the Garmin Marine Network.

• The network cable may not be connected correctly to the

device or to the Garmin Marine Network. Check all

connections.

• If a field-installable network connector was used, it may have

been installed improperly. Check the connector.

The status LED is located on the product label, and can help troubleshoot

installation problems.

Solid red

The radar is getting ready for use. This should only stay red

briefly before changing to flashing green.

Flashing green

The radar is operating properly.

Flashing orange

The radar software is being updated.

Flashing red

The radar has encountered an error. Contact Garmin product

support for assistance.

Garmin

®

 and the Garmin logo are trademarks of Garmin Ltd. or its subsidiaries, registered in the USA and

other countries. GMR

™

 is a trademark of Garmin Ltd. or its subsidiaries. These trademarks may not be used

without the express permission of Garmin.
Furuno

®

 is a registered trademark of Furuno Electric Co., Ltd.

Raymarine

®

 is a registered trademark of Raymarine.

GMR 

radar eries Installation Instructions

7