|
|
Sound |
Level |
Clear |
Maximum |
| I |
Whispers |
1 |
5 |
|
II |
Normal
voice, silenced weapon |
10 |
20 |
| III |
Shouts, suppressed weapon |
40 |
80 |
|
IV |
Small arms
fire, vehicles |
500 |
1000 |
| V |
Heavy weapons fire, light
planes |
1000 |
2000 |
|
VI |
Explosions,
jets |
1500 |
3000 |
On the table above, clear
represents the distance at which the sound can be heard clearly.
At this range, the direction from which the sound originated can be
discerned. Maximum is the maximum distance at which the
sound can be heard — direction can be determined only within a 90º
arc (left, right, forward or rear quadrants).
Modifiers: Higher
levels quarter levels below them. Rain or snow on the ground
reduces these distances by one-third. Woods, a built-up area,
or brush reduces theses distances by one-fourth. Heavy rain or
wind halves these distances.
|
