Revision 19.1
SOLO7 Transmitter User Guide
Copyright © 2013 Domo Tactical Communications (DTC) Limited. All rights reserved.
Commercial in Confidence
Page 10-65
M
Definition
MPEG
Moving Pictures Experts Group is an organisation that sets the standards for
audio and video compression and transmission.
Modulation
To change the output of a transmitter in amplitude, phase or frequency in
accordance with the information to be transmitted. Data is superimposed on
a carrier current or wave by means of a process called modulation.
Multicast
Multicasting is sending data from a sender to multiple receivers where each
receiver signals that they want to receive the data.
N
Definition
NLOS
Non-line-of-sight propagation refers to RF transmissions that travel in a
path obstructed by physical objects.
NTSC
National Television Systems Committee is the analogue television system
used mainly, but not exclusively, in the Americas.
Noise
Unwanted disturbance in an electrical signal.
O
Definition
Omnidirectional antenna An antenna whose radiation pattern shows equal radiation in all horizontal
directions.
P
Definition
PAL
Phase Alternate Line is the analogue television system used mainly, but not
exclusively, throughout the world (see NTSC).
PTZ
Pan-tilt-zoom is a common way of referring to controllable cameras.
Q
Definition
QAM
Quadrature Amplitude Modulation. DTC products commonly use either the 16
state (16-QAM) or 64 state (64-QAM) modulation schemes
QPSK
Quadrature Phase Shift Keying digital modulation scheme.
