Vislink Strata RX, Technical Reference Manual

Page: 147 / 186

Glossary B-3
Strata RX
Operator’s Guide/Tech Ref Manual
FCC Federal Communications Commission, the United
State's communications regulatory agency.
FDM Frequency Division Multiplexing
FFT Fast Fourier Transform
FIFO First in, first out buffer.
FIR Finite Impulse Response.
FLR Vislink's model designation for frequency modulated
(FM) remodulating radio systems from 2 to 15 GHz.
FLR2 is the 2 GHz band version; FLR4, the 4 GHz
band version, etc.
FMT FM Video Modulator
FPGA Field Programmable Gate Array.
FSK Frequency-Shift Keying
GND Ground.
H/W or HW Hardware.
HDB3 High Density Bipolar 3 line code format for traffic
data.
HPF High Pass Filter.
I In phase
ICI Inter-Carrier Interference
ID Identification.
IDU Indoor Unit
IF Intermediate Frequency.
IRE 1. Institute of Radio Engineers, an international
professional radio engineering association that
establishes various standards.
2. A unit of measurement, established by the IRE, in
which 1 IRE Unit =.00714 volts peak-to-peak (Vp-p)
and 140 IRE units equals 1 Vp-p.
Table B-1: Useful Terms (Continued)
ISI Inter-Symbol Interference
Kbps Kilobits per second.
KHz Kilo (1,000) cycles per second.
LCD Liquid Crystal Display
Lcl Local
LED Light emitting diode.
LO Local Oscillator
LOS Loss of Signal.
LPF Low Pass Filter.
Mbps Megabits per second.
MHz Million (1,000,000) cycles per second.
MUX Multiplexer.
NICAM Near-Instantaneous Companding and Multiplexing
NRZ Near Return to Zero.
NTSC Analog color television standard used in the US.
Provides 525 horizontal lines of resolution. Not
compatible with PAL or SECAM.
Null modem
cable An RS-232 cable designed to connect two computers
(or other data sources) together. It has male DB9
connectors on each end, to mate with the DB9
female connectors on the PCs. It also has the
Transmit and Receive connections crossed over so
Transmit (pin 3) on one end connects to Receive (pin
2) on the other.
Also called “Crossover Cable”.
ODU Outdoor Unit - also called RF Unit or RFU
OFDM Orthogonal Frequency Division Multiplexing
ØLK Phase Lock.
Table B-1: Useful Terms (Continued)