Humminbird 737 - Manual (Page 111)

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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%)
Local Time Zone
(Advanced, with optional-purchase GPS receiver only)
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 Select Readouts). This menu
choice is available only when in Advanced User Mode (see Setup Menu Tab: User Mode) and when
an optional-purchase GPS receiver is connected.
To change the Local Time Zone:
1. Make sure you are in Advanced User Mode, and have an optional-purchase GPS receiver
connected, then highlight Local Time Zone on the Setup menu.
2. Use the LEFT or RIGHT 4-WAY Cursor Control keys to change the Local Time Zone
(Default = EST [UTC-5] - Eastern Standard Time).