2
* Since the device is designed only as part of aid or reference for general outdoor activity, not for the
condition requiring extremely high liability, such as life conservation. It is user's responsibility to
judge the navigational capability of the system if the product is used for such purpose.
* Although the unit is meant to be waterproof, user should not try to immerse it into water or use it in
rainy environment.
* Do not try to make any modification to either the mechanics or the circuitry without any permission
from our distributor.
* User is recommended to read this manual before any use of this unit. Remember to keep this
manual in a proper place for future reference.
* Information in this document is subject to change without notice. Superb Sound Products Ltd
reserve the right to change or improve or modify its products and make changes to the content
without obligation to notify any person or organization of such changes.
WARNING
Because of long period of shipping, the three accompanying AAA batteries, which are barely charged
for testing before shipping out, and may discharge to empty when arrived, are not guaranteed to
power on the unit successfully after being installed. If this case does happen, you are recommended
to use the accompanying adaptor to charge the batteries before any use. In rare case you are
suggested to press the RESET button if such act of charging fails to turn on the unit.
CAUTION
Differential GPS (DGPS)
An extension of the GPS system that uses land-based radio beacons to transmit position
corrections to GPS receivers. DGPS reduces the effect of selective availability, propagation delay,
etc. and can improve position accuracy to better than 10 meters.
Dilution Of Precision (DOP)
A measure of the GPS receiver/satellite geometry. A low DOP value indicates better relative
geometry and higher corresponding accuracy. The DOP indicators are GDOP (geometric DOP),
PDOP (position DOP), HDOP (horizontal DOP), VDOP (vertical DOP), and TDOP (time clock
offset).
Distance
The length between two waypoints or from your current position to a destination waypoint. This
length is measured in great-circle (over the earth) terms.
Elevation
The distance above or below mean sea level.
Ephemeris Data
Current satellite position and timing information transmitted as part of the satellite data message.
A set of ephemeris data is valid for several hours.
Greenwich Mean Time (GMT)
The mean solar time for Greenwich, England, which is located on the Prime Meridian (zero
longitude). Based on the rotation of the earth, GMT is used as the basis for calculating standard
time throughout most of the world.
Heading
The direction in which user is facing or traveling.
Home 0
The starting location which user marks as the first waypoint when undertakes a navigating travel.
Home Point
Previous location which user marks as a certain waypoint when navigating.
Hot Start
The power-on sequence when a GSP receiver has valid almanac and ephemeris data.
Latitude
A position's distance north or south of the equator, measured by degrees from zero to 90. One
minute of latitude equals one nautical mile.
Longitude
The distance east or west of the prime meridian (measured in degrees).
23
POLARIS USER MANUAL
POLARIS USER MANUAL
Introduction 3
M ain Features 3
O verview 4
L CD Display Description 5
B utton Function 7
Operating Polaris 8
Battery Installation
8
T he First Use of Polaris 11
I n-Depth Use of Polaris 11
F amiliar With Polaris 11
T hree-Point and Operation 11
G PS Navigation Pointer and Digital Compass 12
D istance 1 7
S peed 18
L ocal Time and GMT 18
B attery Status 1 9
Temperature Display 1 9
Application 20
Specification 21
Accessories 2 1
Glossary 2 2
Table of content