Appendix E - Glossary E-5
K
Kb/s Kilo Bits per Second - 1000 bits/second. A measure of transmission speed. See
also bps & Mb/s.
Ku-Band A frequency band used for satellite communications. For terrestrial earth
stations the receive frequency band is in the range 10.95 – 12.75GHz and trans-
mit 14.0 – 14.5GHz. See also C-band.
L
L-Band A frequency band commonly used as an IF for satellite systems using block up/
down conversion. Usually 950-1450MHz.
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 950-1450MHz) IF.
LO Local Oscillator
M
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.