Comtech EF Data QAM256 - Manual (Page 83)

Glossary QAM256 Digital Video Modulator and Upconverter
G-2 TM077 – Rev. 4.0
C
C Celsius
CATS Computer Aided Test Software
CA/xxxx Cable Assembly
CD-ROM Compact Disk – Read Only Memory
CLK Clock
cm Centimeter
COM Common
CPU Central Processing Unit
CRC Cyclic Redundancy Check. A system of error checking performed at the
transmitting and receiving stations.
CW Continuous Wave
C/N Carrier to Noise Ratio
D
DAC Digital to Analog Converter
dB Decibels
dBc Decibels Referred to Carrier
dBm Decibels Referred to 1.0 milliwatt
dBmV Decibel millivolt, The level at any point in a system expressed in dB’s above or
below a 1 millivolt/75ohm standard.
DC Direct Current
Demod Demodulator or Demodulated
DPLL Digital Phase Locked Loop
DVB Digital Video Broadcast
D&I Drop and Insert
E
E
b
/N
0
Ratio of Energy per bit to Noise Power Density in a 1 Hz Bandwidth.
EEPROM Electrically Erasable Programmable Read Only Memory
EIA Electronic Industries Association
EMI Electromagnetic Interference
ESC Engineering Service Circuits
ES-ES Earth Station to Earth Station Communication
ET Earth Terminal