Comtech EF Data VIPERSAT File Streamer v1.2.x - Manual (Page 46)

A-2 VFS User Guide
C
C-Band A frequency band commonly used for satellite communications (and sometimes
terrestrial microwave). For terrestrial earth stations the receive frequency band
is 3.7-4.2 GHz and transmit 5.925-6.425 GHz. See also Ku-band.
CDM Comtech Data Modem
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 linking points and over which infor-
mation 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 is an Internet protocol for automat-
ing 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.
DPC Dynamic Power Control
DRAM Dynamic Random Access Memory
DSP Digital Signal Processor – A microprocessor chip optimized for signal process-
ing applications.
DSCP Differentiated Services (DiffServ) Code Point – a field in the header of an IP
packet that is used for packet classification purposes.
DVB Digital Video Broadcast
DVP Digital Voice Processor – Used in packet voice applications.