Microwave Radio Communications LLC STATXU064T1CK User Manual

Page of 98
 Glossary
B-2
STRATA TX Operator’s Guide/Tech Ref Manual
ASI
Asynchronous Serial Interface
A serial communications interface operating at 
270 Mbit/sec., generally used in field news-gathering 
operations. 
ASYNC
Asynchronous
Digital communication in which there is no timing 
requirement for transmission and in which the start of 
each character is individually signaled by the 
transmitting device.
Baseband
A composite signal in which video and audio signals 
are combined together, with video occupying 
approximately 0-4.5 MHz and audio modulated onto 
subcarriers in the 5-6 MHz range. Also called 
Composite.
BB
Baseband
BDC
Block Down Converter
BER
Bit Error Ratio
The ratio of bits containing errors to the total number 
of bits in the signal, over a time period.
BiasT
A type of interconnection between the IDU and the 
ODU. In Bias T wiring, IF and DC are combined and 
carried on the coax cable up the ODU; blocking 
circuitry prevents the DC from entering the IDU.
BISS
Basic Interoperable Scrambling System
A means of encrypting and decrypting a digital signal 
to prevent unauthorized reception. The encryption 
and decryption are controlled by a digital key, which 
is shared at both the transmitting and receiving 
location. 
Table B-1: Useful Terms  (Continued)
BISS-1
BISS encryption that uses a fixed key.
BISS-E
BISS encryption that uses an encrypted key.
BNC
Bayonet lock coaxial connector
BPF
Band Pass Filter
bps or b/sec
Bits per second
BPSK
Binary Phase Shift Keying
BW
Bandwidth
CCITT
International Telegraph and Telephone Consultative 
Committee 
A telecommunications standardizing committee of 
the ITU.
CCPS
Command & Control Power Supply
CENELEC
European Committee for Electrotechnical 
Standardization
CNR
Carrier-to-Noise Ratio
COFDM
Coded Orthogonal Frequency Division Multiplexing
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.
CR4
Code Runner 4
CSI
Channel-State Information
CV
Composite Video
Video signal in which the chrominance (color) and 
luminance (brightness) information are combined in 
one signal. S-Video separates the chrominance and 
luminance into individual signals.
CW
Carrier Wave
DAB
Digital Audio Broadcasting
Table B-1: Useful Terms  (Continued)