Redline AN-30 System User Manual page 75

MHz
Modem
(MOdulator/DEModulator)
Modulation
Multipath
NLOS
OFDM
OLOS
Packet
PHY (Physical Layer)
PTP
QAM
QPSK
Receiver Sensitivity
RF
Rx
S/N
SINADR
TCP/IP (Transmission Control
Protocol/Internet Protocol)
TFTP
Tx
Redline Communications
ISO Network Model Layer 2 data link layer.
Megahertz. 1,000,000 Hz
A hardware device which converts digital data into analog and vice
versa.
Any of several techniques for combining user information with a
transmitter carrier signal.
The radio echoes created as a radio signal bounces off of objects.
Non Line Of Sight. Completely obstructed path between two
antennas.
Orthogonal Frequency Division Multiplexing. OFDM spreads data to
be transmitted over a large number of orthogonal carriers.
Optical Line Of Sight. A clear direct path between two antennas, with
obstructions within the first Fresnel zone.
A bundle of data organized in a specific way for transmission. The
three principal elements of a packet include the header, the text, and
the trailer (error detection and correction bits).
Provides for the transmission of data through a communications
channel by defining the electrical, mechanical, and procedural
specifications.
Point to Point
Quadrature Amplitude Modulation
Quadrature Phase Shift Keying
A measurement of the weakest signal a receiver can receive and still
correctly translate it into data.
Radio Frequency
Receiver
Signal to Noise Ratio
Signal to noise and distortion ratio.
The standard set of protocols used by the Internet for transferring
information between computers, handsets, and other devices.
Trivial File Transfer Protocol
Transmitter
Page 75 of 80
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AN-30 System User Manual