Humminbird Matrix 20 - Manual (Page 45)

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Units - Depth
Units - Depth selects the units of measure for all depth-
related readouts.
To change the Units - Depth setting:
1. Highlight Units - Depth on the Setup menu.
2. Use the LEFT or RIGHT 4-WAY Cursor Control keys to change the Units -
Depth setting. (Meters [International Models Only], Feet, Fathoms; Default
is Meters for International models, and Feet for Domestic models)
Units - Temp
(International Only)
Units - Temp selects the units of measure for all temperature-related readouts.
International Models Only.
To change the Units - Temp setting:
1. Highlight Units - Temp on the Setup menu.
2. Use the LEFT or RIGHT 4-WAY Cursor Control keys to change the Units - Temp
setting. (Celsius, Fahrenheit; Default = Celsius)
Units - Distance
(with Temp/Speed or GPS Receiver)
Units - Distance selects the units of measure for all distance-related readouts, and
will appear in the menu if a Temp/Speed Accessory is connected and the
paddlewheel has moved at least once, or if a GPS Receiver is connected.
To change the Units - Distance setting:
1. Highlight Units - Distance on the Setup menu.
2. Use the LEFT or RIGHT 4-WAY Cursor Control keys to change the Units - Distance
setting. (Domestic Models: Statute Miles, Nautical Miles; Default = Statute
Miles; International Models: Meters/Kilometers, Meters/Nautical Miles,
Feet/Statute Miles, Feet/Nautical Miles; Default = Meters/Kilometers)