Humminbird 161 - Manual (Page 25)

18
Introduction to Navigation
Use the 100 Series TM Fishing System to establish waypoints at areas of interest and to
navigate to those waypoints via a savable route (representing the shortest intended
distance between waypoints). You can also view and save tracks, which represent the
actual path of the boat.
Waypoints, Routes and Tracks
Waypoints are stored positions that allow you to mark areas of interest or navigation
points. Your 100 Series
TM Fishing System can store up to 2000 waypoints.
Routes link two or more waypoints together to create a path for navigation, and are
used in trip planning. You can link individual waypoints together by using the GOTO key.
A route represents your intended navigation and shows the shortest path from each
waypoint to the next. As you travel a route, staying on the route line is the most efficient
way to get to your destination, although you should always look out for obstacles not
shown on the chart. Your 100 Series
TM Fishing System can store up to 50 routes that can
each contain up to 50 waypoints.
Tracks consist of detailed position history, and are displayed as a breadcrumb trail of
trackpoints. The Current Track shows the position history since the unit was powered up
(maximum of 20,000 trackpoints displayed). You can clear the Current Track or save it at
any time. Your 100 Series
TM Fishing System can store up to 25 saved tracks, each
containing 20,000 trackpoints. The current track represents your actual path so far.
Waypoints, Routes and Tracks
Route
Track
Waypoint
Depth
Water Surface
Temperature
DTG: Distance
to Go to
Waypoint
Speed of Boat
XTE: Cross
Track Error.
Distance of
Boat from
Route
Bearing of
Boat with
Respect to
True North
BRG: Bearing
to Waypoint