HISTORY CHUCHU Flashcards
•IS A METHOD OR MEANS OR A
COMBINATION THEREOF, OF CONVEYING
INFORMATION OF ANY KIND OF ONE
PERSON OR PLACE TO ANOTHER EXCEPT
DIRECT COMMUNICATION
SIGNAL COMMUNICATION
• USED FOR TRANSMITTING ESSENTIAL COMMANDS
AND WARNINGS UNDER CONDITIONS RENDERING
VERBAL COMMANDS OR WARNINGS INADEQUATE.
• MUST BE MEMORIZED AND PRACTICED UNTIL THEIR
USE BECOMES SECOND NATURE.
• MAY PRODUCE DISASTER IF NOT GIVEN CORRECTLY
AND DISTINCTLY OR IF IMPROPERLY INTERPRETED.
SIGNALS
RADIO
WIRES AND CABLES
AUTOMATION
VISUAL AND SOUND
MANUAL (PHYSICAL MEANS)
MEANS OF COMMUNI CAT ION
- IS THE PRINCIPAL MEANS OF
COMMUNICATIONS OF TACTICAL UNITS
MEANS OF COMMUNI CAT ION
URC 187 (HF type)
RF 2301 (HF type) HARRIS
AN/PRC 77 (VHF type)
PRC 126 (VHF type)
PRM 4720 (VHF type)
PRC 1077 (VHF type)
HARRIS 5800 MP/RE (HF)/HARRIS
5800V H/H
MEANS OF COMMUNI CAT ION
PORTABLE, TRANSPORTABLE,
VEHICULAR AND GENERAL
Types of set
AM (SKY WAVE PROPAGATION)
FM (LINE-OF-SIGHT)
Types of modulation
(SKY WAVE PROPAGATION)
AM
(LINE-OF-SIGHT)
FM
HF - (3-30MHZ),
VHF - (30-300MHZ)
UHF - (300MHZ-3000MHZ)
HF - (40 KMS PLANNING RANGE)
VHF/UHF (8 KMS PLANNING RANGE)
Frequency coverage
- (3-30MHZ),
HF
- (30-300MHZ)
VHF
- (300MHZ-3000MHZ)
UHF
(8 KMS PLANNING RANGE)
VHF/UHF
- (40 KMS PLANNING RANGE)
HF
DR
Y
C
EL
L
BA
T
T
E
R
Y
(B
A-
3
0
),
VEH
IC
U
L
AR
B
A
T
T
E
RY
&
G
E
N
ERATOR
Power source
▶Speed of installation
▶Flexible means of communications
▶Can span great distances
▶Provides communications across
impassable terrains
▶Requires minimum manpower and space
for equipment.
▶Integrates with wire system
MEANS OF COMMUNI CAT ION
Least secured means of
communications
Subject to noise and interference
Radio operations requires
common freq, compatible
equipment and common range
RADIO: WEAK POINTS