| C |
Celsius |
| C |
Centigrade |
| C |
Coulomb |
| C&C |
Command and Control |
| C/A |
Coarse/Acquisition |
| CA |
Capacity Available |
| CA |
Conditional Access |
| CAA |
Crew Access Arm |
| CAD |
Computer Aided Design |
| CADU |
Channel Access Data Unit |
| CAM |
Conditional Access Module |
| CAN |
Controller Area Network |
| C and DH |
Control and Data Handling |
| CANTO |
Caribbean Association of National Telecommunications Operators |
| CAR |
Channel Assignments Record |
| CASS |
Conditional Access Subsystem |
| CA/TDMA |
Combined Access TDMA |
| CATR |
Compact Antenna Test Range |
| CATV |
Community Antenna Television |
| CBR |
Constant Bit Rate |
| CBTR |
Carrier and Bit Timing Recovery |
| CC |
Channel Check |
| CC |
Common Carrier |
| CCC |
Central Control Centre |
| CCCS |
Common Control Channel Subsystem |
| CCFK |
Continuity Check Failure |
| CCHP |
Constant Conductance Heat Pipe |
| CCIR |
Comité Consultatif Internationale des Radiocommunications |
| CCIS |
Common Channel Interoffice Signalling |
| CCITT |
Comité Consultatif Internationale de Télégraphique et Téléphonique |
| CCS |
Central Checkout System |
| CCS |
Common Channel Signalling |
| CCSDS |
Consultative Committee for Space Data Systems |
| CCT |
Continuity Check Transceiver |
| CCTS |
Coordinating Committee on Satellite Communications |
| CD |
Compact Disc |
| CD |
Crystal Detector |
| CDA |
Command and Data Acquisition |
| CDC |
Control and Delay Channel |
| CDE |
Control and Display Equipment |
| CDF |
Carrier Distribution Frame |
| CDHP |
Command and Data Handing Package |
| CDMA |
Code Division Multiple Access |
| CDMU |
Control and Data Management Unit |
| CDR |
Critical Design Review |
| CDU |
Control/Display Unit |
| CDV |
Compressed Digital Video |
| CE |
Conformité Européene |
| CEE |
Commission on the rules for the approval of Electrical Equipment |
| CELP |
Codebook Excited Linear Protection |
| CEN |
Comité Européen de Normalisation |
| CENELEC |
Comité Européen de Normalisation Electrotechnique |
| CEPT |
Conférence Européene des Administrations des Postes et des Télécommunications |
| CES |
Coast Earth Station |
| CES |
Communications Earth Station |
| CF |
Carbon Fibre |
| CFDP |
Computational Fluid Dynamics |
| CFDP |
CCSDS File Delivery Protocol |
| CFE |
Customer Furnished Equipment |
| CFM |
Companded Frequency Modulation |
| CFR |
Code of Federal Regulations |
| CG |
Centre of Gravity |
| CGMS |
Coordination of Geostationary Meteorological Satellites |
| CGC |
Complementary Ground Component |
| CH |
Channel |
| CHU |
Channel Unit |
| C/I |
Carrier to Interference Ratio |
| CI |
Configuration Item |
| CIC |
Common Interface Circuit |
| CIC |
Cover Integrated Cell |
| CICT |
Centre International de Control Technique |
| CID |
Cathode Imaging Detector |
| CIDL |
Configuration Item Data List |
| CIR |
Committed Information Rate |
| CITE |
Cargo Integrated Test Equipment |
| CKR |
Receive Bit Clock |
| CKT |
Circuit |
| CKT |
Transmit Bit Clock |
| CLCW |
Command Link Control Word |
| CLD |
Command Logic Demodulator |
| CLE |
Common Logic Equipment |
| CLK |
Clock |
| CLNP |
Connectionless Network Protocol |
| CLP |
Central Logic Processor |
| CLPS |
Commercial Lunar Payload Services |
| CLR |
Clear |
| CLTU |
Command Link Transmission Unit |
| C-MAC |
Type C Multiplexed Analogue Components |
| CMD |
Command |
| CMDVS |
Control Monitoring Data processing and Visualisation Software |
| CME |
Circuit Multiplication Equipment |
| CME |
Coronal Mass Ejection |
| CMEA |
Council on Mutual Economic Assistance |
| CMIP |
Common Management Information Protocol |
| CMIS |
Common Management Information Services |
| CMOL |
CMIP Over LLC |
| CMOS |
Complementary Metal Oxide Semiconductor |
| CMOT |
CMIP Over TCP/IP |
| CMR |
Cellular Mobile Radio |
| CMR |
Command Receiver |
| CMS |
Control and Monitoring Software |
| C/N |
Carrier to Noise Ratio |
| CNA |
Capacity Not Available |
| CNES |
Centre National d'Etudes des Spatiales |
| CNET |
Centre National d'Etudes des Telecommunications |
| C/No |
Carrier to noise density ratio |
| CNR |
Carrier to Noise Ratio |
| CNR |
Consiglio Nazionale delle Richerche |
| CNSS |
Centre for National Space Study |
| CO |
Central Office |
| CO |
Circuit Order |
| Coax |
Coaxial Cable |
| CoC |
Certificate of Compliance |
| Codec |
Coder-Decoder |
| COFDM |
Coded Orthogonal Frequency Division Multiplex |
| COG |
Centre of Gravity |
| CoM |
Centre of Mass |
| CONOPS |
Concept of Operations |
| CONUS |
Continental United States |
| CO-ORD |
Coordination Channel |
| COP |
Communications Operations Plan |
| CO-POL |
Co-Polarisation |
| COPS |
Command Operations |
| COPV |
Composite Overwrapped Pressure Vessel |
| COTS |
Commercial Off The Shelf |
| COTS |
Commercial Orbital Transportation Services |
| CP |
Circular Polarisation |
| CPE |
Customer Premises Equipment |
| CPES |
Customer Premises Earth Station |
| CPFSK |
Continuous Phase Frequency Shift Keying |
| CPS |
Cycles Per Second |
| CPU |
Central Processing Unit |
| CPSK |
Coherent Phase Shift Keying |
| CQPSK |
Coherent Quadrature Phase Shift Keying |
| CR |
Carriage Return |
| CR |
Carrier Recovery |
| CRAN |
Command Receive Antenna |
| CR and T |
Command, Range & Telemetry |
| CRBW |
Carson Rule Bandwidth |
| CRC |
Cyclic Redundancy Check |
| CRC |
Cyclic Redundancy Code |
| CRPL |
Central Radio Propagation Laboratory |
| CRS |
Commercial Resupply Services |
| CRT |
Cathode Ray Tube |
| CRTS |
Cellular Radio Telephone Service |
| Cryo |
Cryogenic |
| CSBD |
Condensed Sub Burst Data |
| CSC |
Common Signalling Channel |
| CSC |
Communication System Control Centre |
| CSCE |
Communications Subsystem Checkout Equipment |
| CSCM |
Common Signalling Channel Modem |
| CSD |
Circuit Switched Data |
| CSG |
Centre Spatial Guyanais |
| CSM |
Commission for Synoptic Meteorology |
| CSM |
Communication System Monitoring |
| CSME |
Communications Systems Monitoring Equipment |
| CSOC |
Consolidated Space Operations Centre |
| CSS |
Communications Server System |
| CSSB |
Companded Single Sideband |
| CSU |
Channel Service Unit |
| CSU |
Constant Speed Unit |
| CSV |
Circuit Switched Voice |
| C/T |
Carrier to Temperature Ratio |
| C/TDMA |
Contention TDMA |
| CTE |
Channel Translating Equipment |
| CTP |
Condensed (Burst) Time Plan |
| CTR |
Common Technical Regulations |
| CTTE |
Common TDMA Terminal Equipment |
| CU |
Communication Unit |
| CUG |
Closed User Group |
| CW |
Carrier Wave |
| CW |
Continuous Wave |
| CW |
Control Word |
| CXR |
Carrier |
| CYTA |
Cyprus Telecommunications Authority (Cyprus) |
