Archives: Glossary Terms: 691 terms

The main frequency of a radio signal generated by a transmitter prior to application of any modulation.

Reflecting scheme in antennas and telescopes having a primary and a secondary reflecting surface to "fold" the EMF back to ...

A series or chain of craters.

A hollow, irregular depression.

Charge Coupled Device, a solid-state imaging detector.

Computer Command subsystem on board a spacecraft, similar to CDS.

Consultative Committee for Space Data Systems, developer of standards for spacecraft uplink and downlink, including packets.

GCF central data recorder.

Command and Data Subsystem onboard a spacecraft.

DSN's Canberra Deep Space Communications Complex in Australia.