key to successful signaling is contrast: sound against silence; movement
against stillness; light against dark;
angles against curves;
one color against
a contrasting color.
signal shown or sounded in threes is the international signal of distress.
For example, three shots, three fires, or three flares. All of these
tell someone that you need help.
are four main types of signaling: ground, light and fire, and sound.
All of these can be equally effective in different situations.
are good when you are in an area that is not too crowded with trees
or brush. This is because ground signals are intended to be seen from
the air. If there are too many trees around then you'd be hard to
are good when it is hard to see the ground from above or when the
only people who could help are at a lower elevation. The smoke or
reflected light can go through the trees or other obstructions so
you will get the rescuer's attention.
is a great method of signaling when you know there are people who
can help near by. If no one is around than you could whistle for hours
and no one could hear your cry for help.