Set-Up; Contrast; Units-Speed; Units-Distance - Humminbird NS25 Operation Manual

4. The Adjust Fish Alarm menu displays. Highlight the fish symbol to sound the alarm.
Note: the alarm setting is saved immediately.

Set-Up

The NS25 allows you to customize many features to work best for a particular use. The unit
remembers these settings after power is disconnected. Listed below are descriptions and steps
for Set-Up options.

Contrast

Contrast adjusts the lightness and darkness of the screen to accommodate for outdoor lighting
conditions.
To set Display Contrast
1. Highlight Display Contrast
2. Elect desired setting from –5 to +5. The factory setting is zero.

Units-Speed

Units Speed sets the units of measure your speed displays in, i. e., mph, or kts (knots).
To set Units Speed:
1. Highlight Units-Speed
2. Select mph or kts. The factory setting is kts.

Units-Distance

Units Distance sets the units of measure your distance displays, i.e., statute mile (sm) or nautical
miles (nm).
To set Units-Distance
1. Highlight Units-Distance.
2. Select sm/ft or nm/ft. The factory setting is nm/ft.