Microwave Radio DS-2, Руководство оператора

Страница: 7 / 24

Preface
vii
IF Diversity Switch Operator’s Guide 400462-1 Rev. A
FCC Federal Communications Commission, the United State's
communications regulatory agency.
FEC Forward Error Correction rate.
FIFO First in, first out buffer.
FIR Finite Impulse Response.
FLR MRC'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.
FPGA Field Programmable Gate Array.
GND Ground.
H/W Hardware.
HDB3 High Density Bipolar 3 line code format for traffic data.
HPF High Pass Filter.
I In phase
ID Identification.
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.
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 Mutiplexer.
NRZ Near Return to Zero.
PER Parity Error Rate.
PLL Phase Lock Loop.
Q Quadature phase.
QAM Quadature Amplitude Modulation
QPSK Quadrature Phase Shift Keying.
RCL Received Carrier Level.
Rcvr Receiver.
Term Definition