Humminbird 778C HD, 778C HD XD Depth Offset, Temp. Offset, Local Time Zone, Speed Calibration, Depth Offset, Temp. Offset, Local Time Zone, Speed Calibration

Depth Offset

(Advanced)

Settings: -10.0 to +10.0 ft, or -3 to 3 m [International

Models only]; Default = 0

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.

Temp. Offset

(Advanced, with optional Temp/Speed only)

Settings: -10.0 to +10.0 degrees; Default = 0

Temp. Offset will adjust the temperature readout by the amount entered. This menu option is available if a Temp/Speed Accessory is connected and the paddlewheel has moved at least once.

Speed Calibration

(Advanced, with optional Temp/Speed only)

Settings: -20% to +20%; Default = 0%

Speed Calibration will adjust the speed readout by the amount entered. This menu option is available if a Temp/Speed Accessory is connected and the paddlewheel has moved at least once.

Local Time Zone

(Advanced, with optional GPS only)

Settings: Various, Default = EST [UTC-5] - Eastern

Standard Time

Local Time Zone selects your time zone in reference to the time reported by the GPS receiver when Time+Date is selected as a Digital Readout on the Sonar View (see Setup Menu Tab: Select Readouts).

Setup Menu Tab 78