PRORXD Broadcast Receiver User Guide
Commercial in Confidence
Broadcast Solutions, HD/SD Products,
PRORXD
100167
Revision: 7.0
Commercial in Confidence
Page 10-96
R
Means…
Radiate
To transmit RF energy.
Radio Frequency
Frequency of electrical energy capable of propagation into space (usually
above 20kHz). Also called RF.
S
Means…
SNR
Signal to Noise Ratio is an electrical engineering measurement specified as
the ratio of a signal power to the noise power corrupting the signal.
Signal-to-noise ratio compares the level of a desired signal (such as music)
to the level of background noise. The higher the ratio, the less obtrusive the
background noise is.
Shannon Limit
The Shannon limit or Shannon capacity of a communications channel is the
theoretical maximum information transfer rate of the channel, for a noise
level.
Signal
In electronics, a signal is an electrical current or electromagnetic field used
to send data from one area to a second area. The simplest type of signal is a
direct current (DC) that is switched on and off; this is the principle by which
the earliest telegraph worked. More complex signals consist of an
alternating-current (AC) or electromagnetic carrier that contains one or more
data streams.
Streaming
Streaming is the transmission of digital audio or video or the listening and
viewing of such data without first storing it.
T
Means…
Tx
A transmitter is an electronic device which, usually with the aid of an
antenna, propagates an electromagnetic signal such as radio, television, or
other telecommunications.
TNC
The TNC (threaded Neill-Concelman) connector is a threaded version of the
BNC connector. The connector has a 50
Ω
impedance and operates best in the
0–11 GHz frequency spectrum.
Transport Stream (TS)
Transport streams: These streams can contain some MPEG-2 content
channels and related audio. All the channels are multiplexed together, letting
the receiver select which to play back.
U
Means…
UDP
User Datagram Protocol (UDP) Sometimes called fire and forget because
there is no dialog between the sender and receiver. If the receiver does not
receive a packet, the sender will not know. But, UDP is very satisfactory when
there is a small risk of errors (like in your LAN), or when TCP can give "too
late" delivery.
USB
Universal Serial Bus.
