Sonar

Setting the Fish Alarm

You can set an alarm to sound when the chartplotter detects a suspended target of the specified symbols.

1.From the Home screen, select Configure > Alarms > Sonar > Fish.

2.Complete an action:

•Select to sound an alarm for all fish sizes.

•Select to sound an alarm for medium and large fish only.

•Select to sound an alarm for large fish only.

Transducer Configuration

Setting the Keel Offset

The keel offset compensates for the surface reading for the depth of a keel, making it possible to measure depth from the bottom of the keel instead of from the transducer location. Enter a positive number to offset for a keel. You can enter a negative number to compensate for a large vessel that may draw several feet of water.

1.Complete an action, based on the location of the transducer:

•If the transducer is installed at the water line, measure the distance from the transducer location to the keel of the boat. Enter this value in step 3 as a positive number.

•If the transducer is installed at the bottom of the keel, measure the distance from the transducer to the water line. Enter this value in step 3 as a negative number.

Transducer at the water line

A (+) positive number shows depth at the bottom of the keel.

Transducer at the bottom of the keel

A (-) negative number shows depth at the surface.

Keel Offset

2.From the Home screen, select Configure > My Boat > Keel Offset.

3.Complete an action:

•For the GPSMAP 6000 series, use the Rocker or the Numeric Keypad to enter the distance measured in step 1. Ensure that you enter a positive or a negative number based on the location of the transducer.

•For the GPSMAP 7000 series, use the on-screen keyboard to enter the distance measured in step 1. Ensure that you enter a positive or a negative number based on the location of the transducer.

4.Select Done.

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GPSMAP® 6000/7000 Series Owner’s Manual