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7.10
Glossary Of Terms
Term
Antenna
Gain
ARQ
ATPC
Beamwidth
BFW
Bps
BPSK
Channel
CIR
dB
dBi
dBm
DFS
DHCP
Directional
Antenna
Encryption
Ethernet
FD
FWA
Gain
Gateway
GHz
GUI
IP
Isotropic
IXC
LEC
LED
LOS
MAC
70-00072-01-07
AN-80i
Table 67: Spec. - Glossary
The measure of antenna performance relative to a theoretical antenna called an
isotropic antenna.
Automatic Repeat Request. This is the protocol used over the air for error
correction.
Automatic Transmission Power Control. The sector controller-end system
automatically adjusts the RF transmit level of both systems to optimize
performance of the link.
The angle of signal coverage provided by an antenna.
Broadband Fixed Wireless
Bits Per Second. Unit of measurement for the rate at which data is transmitted.
Binary Phase Shift Keying
A communications path wide enough to permit a single RF transmission.
Committed information rate
A ratio expressed in decibels.
A ratio, measured in decibels, of the effective gain of an antenna compared to
an isotropic antenna.
Decibels above a milliwatt.
Dynamic Frequency Selection (DFS) can detect interference from other devices
using the same frequency (especially radar) and automatically take a pre-
selected action such as disable transmission or use alternative frequency.
Dynamic Host Configuration Protocol. A DHCP server automatically issues IP
addresses within a specified range to devices on a network.
An antenna that concentrates transmission power into one direction.
For the purposes of privacy, the transformation of data into an unreadable
format until reformatted with a decryption key.
A LAN architecture using a bus or star topology.
Full Duplex. Refers to the transmission of data in two directions simultaneously.
Fixed Wireless Access
The ratio of the output amplitude of a signal to the input amplitude of a signal.
Typically expressed in decibels (dB).
A network point that acts as an entrance to another network.
Gigahertz. 1,000,000,000 Hz, or 1,000 MHz
Graphical User Interface
Internet Protocol. See TCP/IP.
A theoretic construct of an antenna that radiates its signal 360 degrees both
vertically and horizontally—a perfect sphere. Generally used as a reference.
Inter-exchange Carrier. A long-distance phone company.
Local Exchange Carriers. The traditional local wired phone company.
Light Emitting Diode
Line Of Sight. A clear direct path between two antennas, with no obstructions
within the first Fresnel zone.
Media Access Control. A unique number assigned to a network device.
Proprietary Redline Communications © 2008
&
Definition
Page 104 of 106
User
Manual
Sept 18, 2008
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