22
7.2.3 My altimeter function shows incorrect values
Have you calibrated your altimeter recently? (See 4.5.6.3)
7.2.4 Why was the weather forecast not correct?
Remember that the weather forecast function is measuring the trend and speed of the change in air-pressure.
Although it can detect big changes in altitude (air-pressure) greater than it is possible for the weather to change, and
exclude these from the prediction, it is advisable to have the Multi-Navigator
TM
at a constant altitude for at least 6
hours before reading the weather forecast. The perfect use outdoors is to check the weather forecast in the
morning after a good nights sleep in the tent.
7.2.5 Why is my compass is showing 20 degrees out?
The electronic compass is detecting the magnetic field that is surrounding the Earth to show compass bearings. As
with any magnetic compass it is disturbed by other magnetic fields close to it. The electronics create magnetic
fields inside the Multi-Navigator
TM
, so you must autodeviate the compass to make it compensate for these
disturbances. (See 4.5.7.3) Do this at least every time you change batteries because new batteries will change the
magnetic field in the Multi-Navigator
TM
. Remember to check the local magnetic declination (found on most maps)
and check that the Multi-Navigator
TM
is correctly adjusted for it. (See 4.5.7.2)
7.2.6 I have carried out the Autodeviation and the compass is still out compared to North indicated on the
map. Check if the meridians on your map are referring to Geographic North (True North) or Magnetic North or it
might even be the local grid system that is the North reference system. Select the same North reference as in
4.5.1.6. The final thing you must check is the local magnetic variation (or declination). It is normally indicated on the
map. Adjust for it as in 4.5.1.6 If you are the least unsure of the magnetic variation, select AUTO since the
IntellicompassTM function can calculate the size and direction of the magnetic variation on its own from the
position calculated by the GPS.
8 Specifications
8.1 Technical specifications
Navigation
One-button-GPS
TM
: Quick and easy back-tracking to your start position with only one button press with the Multi
NavigatorTM switched on. Waypoints: 1000 Waypoints with 8-character names - stored complete with time, date
and the extremely accurate altitude readings. Routes: 10 reversible routes, each with up to 100 waypoints. Tr a ck
logging: Automatically records your trip and stores it for display in your Global Map Planner
TM
(accessory software).
Map datums: More than 100 local map datums. Grid systems: More than 10 including UTM, MGRS, plus Swiss,
Australian, New Zealand, Netherlands, Irish, Finnish, Taiwan, Swedish and UK grids.
GPS-Receiver
Receiver** type: 12-channel parallel, for continuous tracking of 12 satellites maximum. Position update rate: 1
per second when in continuous GPS navigation mode. Time to first fix: Frozen (first time in use) - approx. 1-2 min,
Cold (has not been navigating the last 4 hours) - approx. 45 seconds Warm (has been navigating within the last 4
hours) - approx. 10 seconds Reacquisition (occasionally lost satellite signal reception) - approx. 0,1 second
Differential GPS: Ready for differential corrections. (RTCM-SC104) Antenna: Built-in patch antenna.
Accuracy: 15 metres RMS. 1-5 metres RMS with DGPS*. *=Note that different DGPS services are available in
different countries, which is why the accuracy can vary. **=This product includes the SiRFstar
TM
Global Positioning
System (GPS) solution. Copyright SiRF Technology., Inc. SiRF is a registered trademark and SiRFstar is a trademark
of SiRF Technology Inc.
Electronic compass
IntelliCompassTM: Compensates for Earth’s local magnetic declination at geographic position and shows true
SPECIFICATIONS
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