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HDT-1000 User and Technical Manual
Term
Definition
BNC
Bayonet lock coaxial connector. Compare to TNC.
COFDM
Coded Orthogonal Frequency Division Multiplexing
A digital multi-carrier modulation scheme that utilizes numerous closely-
spaced orthogonal sub-carriers.
Composite [Baseband]
A band or grouping of frequencies and/or subcarriers, including video,
occupied by the signal in a radio transmission system. Also called
Baseband.
dB
Decibel
A logarithmic measurement of power or voltage, applied to audio and RF
signals.
dBm
A measure of RF signal strength defined as “decibels relative to one
milliwatt [mW].” A 1 mW signal has a signal strength of 0 dBm. A signal
weaker than 1 mW has a negative dBm value, and a signal stronger than 1
mW has a positive dBm value.
DES
Data Encryption Standard
DHCP
Dynamic Host Configuration Protocol
A protocol for automating the configuration of computers that use TCP/IP.
DNS
Domain Name Server/Service
DVB-T
Digital Video Broadcasting - Terrestrial
FEC
Forward Error Correction
A type of digital signal processing in which a transmitter encodes redundant
data bits in a signal and a decoder in a receiver detects any errors and
extracts the original signal.
FTP
File Transfer Protocol
A standard Internet protocol commonly used to transfer files from the local
computer to a remote web server or to download files from a remote server
to the local computer.
Guard Interval
A method used to prevent interference among distinct transmissions.
GOP
Group of Pictures
In MPEG encoding, a group of pictures specifies the order in which intra-
frames are arranged. The GOP is a group of successive pictures within
an MPEG-coded film and/or video stream. Each MPEG-coded film and/or
video stream consists of successive groups of pictures.
HD
High Definition (video)
