Sound target indicators can be as subtle as the "clunk" of equipment knocked about or as distinct as a rifle muzzle blast.

While going through a cycle at the U.S. Army's National Training Center at Fort Irwin, California, in the mid-1980s, I was surprised by how far the sound of generators carried in the night Mohave wind. The wind dramatically affects sound waves, making distant sounds seem close if it's blowing toward you, or deceptively lessening them when it carries them away from you.

When conditions are just right, you can even hear distant human voices or coughing that not only indicate the enemy's location but tell you how alert or lax he is.

A novel Soviet army technique from World War II was to lay a board on the ground and place an ear against it to hear distant vehicles, somewhat like listening to a railroad rail. This was especially effective near hard-surfaced roads and bridges or frozen ground.

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Hunting Mastery Selected Tips

Hunting Mastery Selected Tips

Deer hunting is an interesting thing that reminds you of those golden old ages of 19th centuries, where a handsome hunk well equipped with all hunting material rides on horse searching for his target animal either for the purpose of displaying his masculine powers or for enticing and wooing his lady love.

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