Cables to Go CDM-570L manual Vipersat CDD-564L User’s Guide

BPSK Binary Phase Shift Keying – A modulation technique in which the carrier is phase shifted +/- 180 degrees. See also QPSK

C

C-BandA frequency band commonly used for satellite communications (and sometimes terrestrial microwave). For terrestrial earth stations the receive frequency band is 3.7-4.2GHz and transmit 5.925-6.425GHz. See also Ku-band.

CRC Cyclic Redundancy Check – A method of applying a checksum to a block of data to determine if any errors occurred during transmission over communica- tions links.

CXR Carrier – A radio frequency transmission bearer linking points and over which information may be carried.

D

DAMA Demand Assigned Multiple Access – A process whereby communications links are only activated when there is an actual demand.

dBm Decibel referenced to 1 milliwatt.

DHCP The Dynamic Host Configuration Protocol (DHCP) is an Internet protocol for automating the configuration of computers that use TCP/IP.

DNA Dynamic Node Announcement – In VIPERSAT satellite networks a process whereby remote sites periodically announce their presence to facilitate network setup and monitoring.

DOS Disk Operating System – A computer operating system. DPC Dynamic Power Control.

DRAM Dynamic Random Access Memory

DSP Digital Signal Processor – A microprocessor chip optimized for signal process- ing applications.

DVB Digital Video Broadcast

DVP Digital Voice Processor – The VIPERSAT voice card used in packet voice applications.

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