NorthStar 6000i, Быстрый старт и справочное руководство

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Reference section 10 — Setup
Changing your navigation settings Reference Manual Revision D
Changing the settings
To change any of the options (fully
described in the following pages), select it
by pressing the cursor pad to move the
arrow at the left of the screen, then press
Edit
. The selected option flashes, waiting
for you to change it using the cursor pad
or the keypad. Press
ENTER
to finalize
your changes.
Choosing a navigation source
The 6000i’s position screens and waypoint
navigation are based on position informa-
tion obtained from one of the following
navigation sources:
•
GPS — choose this to use GPS position
data
•
Phantom Loran — choose this to see
your GPS position displayed as loran
TDs (any available GPS differential
corrections will also be used in the
calculation of the Phantom Loran TDs)
•
external loran — choose this to use a
loran receiver connected to the
6000i
NOTE:
This option includes a setting for demo
mode. For instructions on demo mode,
see Using demo mode, on page 16.
Choosing magnetic variation
A compass naturally points to the magnetic
north pole, several hundred miles from the
Earth’s
geographic north pole. The differ-
ence between the angles to the two poles is
known as
magnetic variation.
You can display bearings as true (relative
to north) or magnetic (to match your
compass). The
6000i can calculate the
magnetic variation for your position auto-
matically, or you can enter it manually.
Push the cursor pad up or down to choose:
•
true — no variation applied (true
bearings are usually required when
using a gyrocompass)
•
automatic — the unit calculates
variation automatically according to
your location and the date
The factory default setting is “automatic.”
Under most conditions, you’ll want the
6000i to calculate the variation automati-
cally for your position, since the automat-
ically calculated variation is usually
entirely adequate.
•
manual setting — press the cursor pad
to the right, enter three digits
representing your variation from 0 to
180, and press
E / W
to select the
direction.