GNSS Glossary

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C&M :

Control & Monitoring

C/A :

Coarse Acquisition

C1 :

C-band uplink frequency (C1 = 6.4 GHz)

C2 :

C-band downlink frequency (C2 = 3.6 GHz)

CAA :

Civil Aviation Authority

CAASD :

Centre for Advanced Aviation System Development

CADM :

Configuration And Data Management

CAT-1 :

Category 1 Precision Approach Phase of Flight

CAT-2 :

Category 2 Precision Approach Phase of Flight

CC :

Configuration Control or Core Computer

CCB :

Change Configuration Board or Configuration Control Board

CCF :

Central Control Facility

CCI :

Communications Control Interface

CCITT :

Comite Consultatif International Telegraphique et Telephonique or International Telephone and Telegraph Consultative Committee

CCN :

Contract Change Notice

CDI :

Course Deviation Indicator

CDMA :

Code Division Multiple Access

CDR :

Critical Design Review

CE :

Communication Equipment

CEU :

Commission of the European Union

CFI :

Customer Furnished Item

CHA :

Channel of High Accuracy

CI :

Configuration Item

CIDL :

Configuration Items Data List

CIO :

Conventional International Origin

CL :

Client representative

CM :

Compliant Multiple or Configuration Manager or Configuration Management

CMO :

Configuration Management Office

CMP :

Configuration Management Plan

CMT :

Centre de Mission et Traitement (Euridis) or Commissioning and Maintenance Terminal

CN :

Change Notice

CNES :

Centre National d’Etudes Spatiales

CNMS :

Communication Network Management System

CNS :

Communications Navigation & Surveillance

CO :

Change Order

COC :

Certification Of Conformance

COQ :

Certification of Qualification

COS :

Continuity Of Service

COTS :

Commercial Off The Shelf

CPF :

Central Processing Facility

CPU :

Central Processing Unit

CR :

Change Request

CRB :

Change Review Board

CRC :

Cyclic Redundancy Check

CRD :

Comment Response Documents (at EASA)

CSA :

Channel of Standard Accuracy

CSAR :

Configuration Status Accounting Report

CSI :

Containment Surface Incident

CSU :

Channel Service Unit

CW :

Continuous Wave

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