Glossary of Terms: CHECO Reports
20 September 1968 & 12 September 1970
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ACC ARDF Coordination Center
Across Course Correction
AFSC Air Force System Command
AGE Aerospace Ground Equipment
AGL Above Ground Level
AM Amplitude Modulated (Modulation)
Arc Light B-52 Operations in SEA
ARDF Airborne Radio Direction Finding
AUTODIN Automatic Digital Network
CAS Controlled American Source
CC Compat Cross Configured
CCZ Combat Cross Zulu Configrued
CEP Circular Error Probable
CHECO Contemporary Historical Examination of Current Operations
CICV Combined Intelligence Center Vietnam
CINCPAC Commander in Chief, Pacific
COMINT Communications Intelligence
COMUSMACV Commander, U.S. Military Assistance Command, Vietnam
CW Continous Wave
Carrier Wave
DF Direction Finding
DME Distance Measuring Equipment
DMZ Demilitarized Zone
DSU Direct Support Unit
DZP Doppler Zero Point
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ECM Electronic Countermeasures
ECCM Electronic Counter-Countermeasures
EOB Electronic Order of Battle
EW Electronic Warfare
FAC Forward Air controller
FM Frequency Modulated (Modulation)
FOB Forward Operating Base
H&I Harrassment and Interdiction
HF High Frequency
IR Infrared
IRAN Inspect and Repair as Necessary
ISC Infiltration Surveillance Center
ITOT Initial Time Over Target
JOA Joint Operating Agreement
KIA Killed in Action
Km Kilometers
LOP Line of Position
LZ Landing Zone
MACV Military Assistance Command, Vietnam
NM Nautical Mile
NSA National Security Agency
NVA North Vietnamese Army
OL Operating Location
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PACOM Pacific Command
PAD Phase Angle Diesrimination
Programmed Action Directive
RAD Required Action Directive
RHAW Radar Homing and Warning
ROC Reconnaissance Operations Center
Required Operational Capability
RRC Radio Research Company
RRG Radio Research Group
RRU Radio Research Unit
RT Radio Transmission
Receiver-Transmitter
RVN Republic of Vietnam
SAC Strategic Air Command
SEA Southeast Asia
SEAOR Southeast Asia Operational Requirement
SI Special Intelligence
SIGNT Signal Intelligence
SS Security Squadron
SSB Single Sideband
SSIR Special Security Investigations Required
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TAC Tactical Air Command
TCTO Time Compliance Tech Order
TEOS Tactical Electronic Operational Support
TEWS Tactical Electronic Warfare Squadron
Tactical Electronic Warfare System
TFA Task Force Alpha
UE Unit Equipment
UHF Ultra High Frequency
USAFSS United States Air Force Security Service
VC Viet Cong
VHF Very High Frequency
VNAF Vietnamese Air Force
WIA Wounded in Action
X ALR-34/35/38 Operator' Console
Y Acquisition/Collection Consoles
Z Acquistiion/Collection Consoles
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