Laser Operation Characteristics

Question 1

Current tactical lasers operate in the _______ wavelength spectrum, which is not visible to the human eye.

Answer 1

Near Infrared

Question 2

What are the four modes of operation of the FS3/LRAS?

Answer 2

Locate, Designate, Degraded, Training

Question 3

The FS3 Eyesafe Laser Range Finder (ELRF) has a minimum operating ranger of _______ meters.

Answer 3

200 meters +/- 5 meters

Question 4

The FS3 Eyesafe Laser Range Finder (ELRF) has a maximum range of ______ meters.

Answer 4

19,990 meters +/- 5 meters

Question 5

The effective range of a laser range finder is dependent on the sensitivity of its _____.

Answer 5

Photoreceiver

Question 6

_____ occurs when some of the laser energy goes beyond the target and impacts an object or terrain behind the target.

Answer 6

Over-Spill

Question 7

Spill-over occurs when the laser spot is _____ than the intended target, or when there is unsteady tracking of the target from designator.

Answer 7

Larger

Question 8

_____ occurs when some of the laser energy impacts either terrain or an object short of the intended target.

Answer 8

Under-Spill

Question 9

The laser spot size is a function of _____ and the distance from the laser designator to the target.

Answer 9

Beam Divergence

Question 10

If a designator has a beam divergence of 1.5 milliradian, its spot will have a diameter of approximately _____ meters at a distance of 3000 meters.

Answer 10

4.5 meters

Question 11

An aircraft launching a laser guided weapon at a target, and then turns so the laser spot moves to the side of the target and out of view to the laser guided weapon seeker is an example of _____.

Answer 11

Podium Effect

Question 12

When a laser seeker locker locks-on to other reflected energy instead of the target it is referred to as _____.

Answer 12

False Seeker Lock-On

Question 13

Absorption of laser-radiated energy, such as into the road wheels of a vehicle or mouth of a tunnel is known as ______

Answer 13

Entrapment

Question 14

The result of motion of the designator, or of the beam developed by the designator around the intended aim-point is referred as _____.

Answer 14

Spot Jitter

Question 15

_____ and _____ attenuate laser energy and degrade the ability of Laser Spot Trackers and Laser guided weapons to see the spot.

Answer 15

Clouds, Fog

Question 16

When a laser seeker detects too much IR energy from the sun it is known as ______.

Answer 16

Solar Saturation

Question 17

When lasing targets during the hottest part of the day how can heat vapors affect the laser beam?

Answer 17

Beam may be Refracted

Question 18

What protocol prohibits the use of lasers specifically designed to cause permanent blindness to unenhanced vision?

Answer 18

Protocol IV to the Certain Conventional Weapons Convention

Question 19

An area that extends 120° (60° on either side of the Laser Target Line) is known as the _____

Answer 19

Optimal Attack Zone

Question 20

A 20° wedge whose apex is at the target and extends 10° either side of the Laser Target Line is known as the _____.

Answer 20

Safety Zone

Question 21

Pulse Repetition Frequency codes use a modified octal system that uses the numerical digits _____ through _____.

Answer 21

1, 8

Question 22

Three-digit PRF equipment settings range from _____ to _____.

Answer 22

111-888

Question 23

When using a mix of three-digit and four-digit PRF coded equipment the first digit of the four-digit code is always set to the numerical digit _____.

Answer 23

1

Question 24

Invisible IR radiation from the laser designator can be refracted by the cornea and eye’s lens and transmitted through the ______ onto the retina.

Answer 24

Vitreous Humor

Question 25

The _____ is the distance in which the small, concentrated laser energy output poses a hazard to the unaided eye that may range for several kilometers.

Answer 25

Nominal Ocular Hazard Distance