Depth Offset (Advanced); Aux. Temp Offset (Advanced); Temp. Offset (Advanced); Speed Calibration (Advanced, With Speed Paddlewheel Only) - Humminbird 858c Installation And Operation Manual

Depth Offset
(Advanced)
Settings:-10.0 to +10.0 feet or -3 to 3 meters
[International models only], Default = 0.0, or Off
Depth Offset will adjust the digital depth readout to indicate depth from the
waterline or boats 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.
Aux. Temp Offset
(Advanced)
Settings: -10.0 to +10.0 degrees, Default = 0
Aux Temp Offset will adjust the aux temperature readout (the temperature
on the optional-purchase temperature probe or Temp/Speed accessory) by
the amount entered.
Temp. Offset
(Advanced)
Settings: -10.0 to +10.0 degrees, Default = 0, or Off
Temp Offset will adjust the temperature readout by the amount entered.
Speed Calibration will adjust the speed readout by the percentage entered,
and will appear in the menu if a Speed accessory is connected and the
paddlewheel has moved at least once.
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).
Daylight Saving Time adjusts the time display to account for local Daylight
Saving Time when Time+Date is selected as a Digital Readout on the Sonar
View (see Setup Menu Tab: Select Readouts).
Selecting On adds one hour to the time display adjusted for your local time
zone. Selecting Off leaves the time display as adjusted for your local time
zone.
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Speed Calibration
(Advanced, with Speed paddlewheel only)
Settings: -20% to +20%, Default = 0%
Local Time Zone
(Advanced)
Settings: Various; Default = EST [UTC-5] - Eastern
Standard Time
Daylight Saving Time
(Advanced)
Settings: Off, On; Default = Off
Setup Menu Tab