Humminbird 981 Fish Finder User Manual


 
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TIME FORMAT
(Advanced, 987c SI Combo models, International only)
Time Format changes the time format used by the unit This menu choice is available
only when in Advanced User Mode (see Setup Menu Tab: User Mode.) International
Models Only. Time Format selects a 12 hour or 24 hour format for the time of day
displayed when Time + Date is selected as a Digital Readout on the Sonar View (see
Select Readouts).
T
o change the Time Format:
1. Make sure you are in Advanced User Mode, then highlight Time Format on the
Setup menu.
2. Use the LEFT or RIGHT 4-WAY Cursor Control keys to change the Time Format.
(12 hour, 24 hour, Default = 12 hour)
DATE FORMAT
(Advanced, 987c SI Combo models, International only)
Date Format changes the date format used by the unit This menu choice is available
only when in Advanced User Mode (see Setup Menu Tab: User Mode.) International
Models Only. Date Format selects the format for the date display when Time + Date is
selected as a Digital Readout on the Sonar View. (see Select Readouts).
T
o change the Date Format:
1. Make sure you are in Advanced User Mode, then highlight Date Format on the
Setup menu.
2. Use the LEFT or RIGHT 4-WAY Cursor Control keys to change the Date Format.
(mm/dd/yy, dd.mm.yy or yy.mm.dd, Default = mm/dd/yy)
NMEA OUTPUT
(Advanced)
NMEA Output turns the NMEA output on or off. This menu choice is available only
when in Advanced User Mode (see Setup Menu Tab: User Mode.)
The f
ollowing NMEA sentences are output:
DPT- Depth
MTW - Water Temperature
GLL - Lat/Lon Position
GGA - GPS Fix Data
RMC - Recommended Minimum Specific GNSS Data
VTG - Course Over Ground and Ground Speed
ZDA - Time and Date
When na
vigating, the following NMEA sentences are also output:
APB - Autopilot Sentence B
BWR - Bearing and Distance to Waypoint
RMB - Recommended Minimum Navigation Info
T
o turn NMEA Output on or off:
1. Make sure you are in Advanced User Mode, then highlight NMEA Output on the
Setup menu.
2. Use the LEFT or RIGHT 4-WAY Cursor Control keys to change the NMEA Output
to On or Off (Off, On, Default = Off).
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