Acoustic Hailing

Question 1

LRAD long range acoustic hailing device

Answer 1

• helps with building/area evacuation
• helps area denial with its intense audio capabilities
• inputs are ( pre recorded, real time verbal, translated phrases, warning tones)

Question 2

LRAD sound

Answer 2

Highly directional, man portable, minimal exposure on back and sides.

Question 3

LRAD employments

Answer 3

Vehicle Checkpoints, Crowd Control, Prison Camp communications, as well as marine search and seizure missions

Question 4

LRAD controls easy and durable

Answer 4

• Aiming sight
• Microphone holder
• microphone connection
• safety diagram
• power switch
• power connection to HMMV or dc
• Volume control
• Status LED
• MP3 holder

Question 5

Sound Commander characteristics

Answer 5

Man portable
PA
Loud speaker
self contained needs no additional parts

Question 6

Sound Commander Parts

Answer 6

Audio amplifier/pre amplifier built in 3 tone siren
internal integral speaker
built in battery charger
12 VDC sealed Lead- acid battery
VHF wireless receiver 
controls, indicators, and input output
rigid housing 8x11x15

Question 7

Sound Commander accessories

Answer 7

Head mounted microphone with cable and switch
20ft microphone extension cord
5ft microphone adapter
12VDC automobile charging adapter
110/230 VAC charger

Question 8

MAD magnetic audio device

Answer 8

• Long throw planar surface array
• wave guide capable
• 500ft range (151m) @ 80 db
• with waveguide 800ft (242m) @80db

Question 9

adjusting for gain

Answer 9

turn master volume all the way down
plug in power cable
plug in microphon
turn on power switch
flip toggle to mic
speak into microphone and adjust gain until green light flickers
-turn mic up to max
-turn master up as needed

Question 10

bullhorn

Answer 10

1/2 max distance
lightweight compact
remote microphone with 5ft coil cord
2 modes of operations siren and talk
indoor/outdoor use
volume control
pistol grip

Question 11

phraselator you can:

Answer 11

give commands
offer direction
relay information
ask questions
record responses for later
1000+ phrases multiple languages 
memory slot
Microsoft PC compatible

Question 12

Phraselator used in following places

Answer 12

checkpoints
giving commands
prompting feedback
providing medical care

Question 13

voice response translator

Answer 13

very similar to the Phraselator

• pre set phrases up to 8 different people can use
• can be attached to bullhorn

Question 14

Squid.200

Answer 14

phrased base translation device
loaded with 5 languages at a time
Hands free eyes free operation

Question 15

LRAD safety

Answer 15

Never operate the at max power when personnel or reflective objects may be within XX meters
-never point directly at personnel in the immediate vicinity of ops
-never graze personnel in safety zone
-output power of the warning tone is slightly higher than voice levels
-

Question 16

Safety diagram

Answer 16

Red zone- do not enter within xx meters while in continuous operations
Yellow- don’t enter without hearing protections
green- safe for continued operations with hearing protection

Question 17

Sound Commander

Answer 17

no people closer than 3m

use hearing protections

Question 18

MAD

Answer 18

Sound can cause “immediate” physical injury
stay well behind speaker when using microphone to prevent feed back
-feedback can be used as an annoying deterrent tone

Question 19

transmitting into buildings

Answer 19

Aim directly towards window best if square to window

-angled will cause sound to skip off, sound may be audible in some rooms but not in others

Question 20

transmitting factors

Answer 20

poor location- bad angle no windows most sound deflected
partially effective- angle and distance will make this difficult but a huge window will allow some sound to penetrate
good position-multiple windows nice square angle will allow most of the sound into many rooms
area denial - sounds used to keep people out of certain areas
public address- evactuation, food and water locations

Question 21

what are the applications of and

Answer 21

area denial
public addresses
crowd control
psychological operations