Comtech EF Data Vipersat Load Utility v3.5.x - Manual (Page 96)

A-6 VLoad User Guide
K
kbps kilo bits per second – 1000 bits/second. A measure of the bit rate or transmis-
sion speed of a digital communication link. See also bps and Mbps.
Ku-band A frequency band used for satellite communications. For terrestrial earth
stations, the receive frequency band is in the range 10.95–12.75 GHz and the
transmit frequency band is 13.75–14.5 GHz. See also C-band and L-band.
L
L-band A frequency band commonly used as an IF for satellite systems using block up/
down conversion. Typically 950–1450 MHz Rx, 1250–1750 MHz Tx.
LAN Local Area Network
LLA Low Latency Application
LNA Low Noise Amplifier – An amplifier with very low noise temperature used as
the first amplifier in the receive chain of a satellite system.
LNB Low Noise Block – A downconverter so called because it converts a whole
band or “block” of frequencies to a lower band. The LNB (similar to an LNA) is
part of the satellite ODU/transceiver.
LNC Low Noise Converter – A combined low noise amplifier and block downcon-
verter, typically with an L-band IF.
LO Local Oscillator – A component used in upconverters, downconverters, and
transponders for frequency translation (heterodyne) of the carrier signal.
M
M&C Monitor & Control
MAC Media Access Control – A protocol controlling access to the physical layer of
an Ethernet network.
Mbps Mega bits per second – 1 Million bits/second. A measure of the bit rate or trans-
mission speed of a digital communication link. See also bps and kbps.
Modem Modulator and Demodulator units combined.