Humminbird 77c manual Depth Offset, Temp Offset, Speed Calibration, Nmea Output

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Depth Offset

(Advanced)

Depth Offset will adjust the digital depth readout to indicate depth from the waterline or boat's keel. Enter a positive vertical measurement from the transducer to the waterline to read the depth from the waterline. Enter a negative vertical measurement from the transducer to keel to read the depth from the keel. This menu choice is available only when in Advanced User Mode (see Setup Menu Tab: User Mode.)

To change the Depth Offset setting:

1.Make sure you are in Advanced User Mode, then highlight Depth Offset on the Setup menu.

2.Use the LEFT or RIGHT 4-WAY Cursor Control keys to change the Depth Offset setting. (-10.0 to +10.0 feet or -3 to 3 meters [International Models Only], Default = 0)

Temp Offset

(Advanced)

Temp Offset will adjust the temperature readout by the amount entered. This menu choice is available only when in Advanced User Mode (see Setup Menu Tab: User Mode.)

To change the Temp Offset setting:

1.Make sure you are in Advanced User Mode, then highlight Temp Offset on the Setup menu.

2.Use the LEFT or RIGHT 4-WAY Cursor Control keys to change the Temp Offset setting. (-10.0 to +10.0 degrees, Default = 0)

Speed Calibration

(Advanced, with Temp/Speed Only)

Speed Calibration will adjust the speed readout by the percentage entered, and will appear in the menu if a Temp/Speed Accessory is connected and the paddlewheel has moved at least once, when the unit is in Advanced User Mode (see Setup Menu Tab: User Mode.)

To change the Speed Calibration setting:

1.Make sure you are in Advanced User Mode, then highlight Speed Calibration on the Setup menu.

2.Use the LEFT or RIGHT 4-WAY Cursor Control keys to change the Speed Calibration setting. (-20% to +20%, Default = 0%)

NMEA Output

(Advanced)

NMEA Output turns the NMEA output on or off. This menu choice is available only when in Advanced User Mode (see Setup Menu Tab: User Mode.)

The following NMEA sentences are output:

DPT- Depth

MTW - Water Temperature

GLL - Lat/Lon Position

GGA - GPS Fix Data

RMC - Recommended Minimum Specific GNSS Data

VTG - Course Over Ground and Ground Speed

ZDA - Time and Date

When navigating, the following NMEA sentences are also output: APB - Autopilot Sentence B

BWR - Bearing and Distance to Waypoint

RMB - Recommended Minimum Navigation Info

To turn NMEA Output on or off:

1.Make sure you are in Advanced User Mode, then highlight NMEA Output on the Setup menu.

2.Use the LEFT or RIGHT 4-WAY Cursor Control keys to change the NMEA Output to On or Off (On, Off, Default = Off).

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Contents Matrix 77c Operations Manual Table of Contents Thank YouViews Menu Tab Accessories Menu Tab Troubleshooting Alarms Menu TabSetup Menu Tab Sonar X-Press MenuHow Sonar Works DualBeam Plus SonarTemperature water surface temperature What’s On the DisplayViews Sonar ViewSonar Zoom View Understanding Sonar HistoryReal Time Sonar RTS Window 200/83 kHz Split Sonar View 200/83 kHz Split Sonar ViewBig Digits View Big Digits ViewBottom Presentation View Key POWER/LIGHT KeyKey Functions Menu KeyAdvanced features such as WeatherSense, GPS Accessory BusPowering Up the Unit Exit KeyKeys to reactivate the X-Press Menu Menu SystemPress the Menu key once to display Change to the screenNormal Operation Exit Normal operation by powering your Fishing System offStart-Up Options Menu SimulatorSonar X-Press Menu System StatusPC Connect Sensitivity To adjust the SensitivityTo adjust the Upper Range Upper RangeBottom View Chart SpeedLower Range Sonar Menu Tab To adjust the Zoom LevelZoom Level Sonar Zoom View OnlyTo use Beam Select Beam SelectFish ID+ Highlight Beam Select on the Sonar main menuDepth Lines Fish SensitivityKHz Sensitivity Max Depth Surface ClutterNoise Filter Setting. Fresh, Salt, Default = Fresh Alarms Menu TabTo change the Water Type setting Water TypeLow Battery Alarm Depth AlarmFish ID Alarm Temp AlarmUnits Temp Setup Menu TabUnits Depth Units DistanceRestore Defaults User ModeTriplog Reset Units SpeedVoltage TemperatureSelect Readouts To Select ReadoutsSpeed Calibration Depth OffsetTemp Offset Nmea OutputTo Change the View Status of Any View Accessories Menu TabViews Menu Tab Problem Possible Cause TroubleshootingDisplay Problems Control head loses power at high speedsIsolation Matrix Fishing System AccessoriesFinding the Cause of Noise Specifications Contact Humminbird