Comtech EF Data Vipersat 564L User Manual page 145

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 trans-
mit 14.0 – 14.5 GHz. See also C-band.
L-Band A frequency band commonly used as an IF for satellite systems using block up/
down conversion. Usually 950-1450 MHz.
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 downconvertor so called because it converts a whole
band or "block" of frequencies to a lower band. It is similar to LNA.
LNC Low Noise Converter – A combined low noise amplifier and block down
converter, usually with an L-band (typically 950-1450 MHz) IF.
LO Local Oscillator
M&C Monitor & Control
MAC
Media Access Control – A protocol controlling access to the physical layer of
an Ethernet network.
Mb/s Mega Bits per Second – 1 Million bits/second. A measure of transmission
speed. See also bps & kb/s.
Modem Modulator and Demodulator units combined.
Multicast Transmitting a single message simultaneously to all.
A p p e n d i x G l o s s a r y
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