Bresser NATIONAL GEOGRAPHIC 90-79000 Mode D'emploi page 10

Repeat with another object (No. 4, object B) nearby. Your lo-
cation is where the lines to the two points cross on the map.
5. Hiking to a destination on off-road terrain
The yellow lines on the sight glass (2) are intended for fast
walking under diffi cult conditions. There are two lines, one
longer and one shorter. Together, they make a 45° angle.
First orient your compass toward north, then turn the rotating
sight glass (2) with the rotating rim (3) so that the yellow line
points in the direction that you want to travel. Now you can
take a quick look at your compass at any time. As you walk,
simply orient the compass toward the north and then hike the
direction that the line indicates. You can also use this method
when you can no longer see your destination, such as if you
are hiking through valleys and depressions.
6. How can I determine the distance to my goal?
A centimetre scale (8) and a measuring scale (9) are on the
side of your compass. These can help you determine dis-
tance. Locate the scale of the map you are using. The scale
of a map can usually be found in one of the bottom corners.
If you have a map with a scale of 1:500, then 1 cm on the
map corresponds to 500 cm in reality. You can measure
10
All manuals and user guides at all-guides.com
distance on the map with the centimetre scale (8) and then
calculate the distance in reality.
You can only use the compass measuring scale (9) with maps
that have a scale of 1:50,000. If you have a map with this scale,
you can then read the metres right off the measuring scale (9).
A few examples:
Map scale Measured distance
1:100 4 cm
1:10,000 10 cm
Actual distance
400 cm (4 m)
100,000 cm