Anadol Eco 4K UHD E2 Linux Sat Receiver User Manual
Anadol ECO 4K UHD E2 Linux Sat Receiver
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8. GLOSSARY
8PSK
8-PSK is usually the highest order PSK constellation deployed. With more than
8 phases, the error-rate becomes too high and there are better, though more complex,
modulations available such as quadrature amplitude modulation (QAM).
Although any number of phases may be used, the fact that the constellation must
usually deal with binary data means that the number of symbols is usually a power of 2
— this allows an equal number of bits-per-symbol.
Composite Video
Composite video is the format of an analog television (picture only) signal before
it is combined with a sound signal and modulated onto an RF carrier. Composite
video is often designated by the CVBS acronym, meaning "Color, Video, Blank
and Sync". In German (with PAL being a German invention by Telefunken's Walter
Bruch) the abbreviation FBAS (Farbe-Bild-Austastung-Synchron) means the same.
It is usually in standard formats such as NTSC, PAL, and SECAM. It is a composite
of three source signals called Y, U and V (together referred to as YUV) with sync
pulses. Y represents the brightness or luminance of the picture and includes
synchronizing pulses, so that by itself it could be displayed as a monochrome picture. U
and V represent hue and saturation or chrominance; between them they carry the color
information. They are first modulated on two orthogonal phases of a color carrier signal
to form a signal called the chrominance. Y and UV are then combined. Since Y is a
baseband signal and UV has been mixed with a carrier, this addition is equivalent to
frequency-division multiplexing.
Conditional Access System
Several companies provide competing Conditional Access Systems; Irdeto Access,
Nagravision, Conax, Viaccess, Verimatrix and NDS are among the most commonly
used CAS systems.
DiSEqC
Stands for Digital Satellite Equipment Control. It is a special communication protocol for
use between a satellite receiver and a device such as a multi-dish switch or a small dish
antenna rotor. DiSEqC was developed by European satellite provider Eutelsat, which
now acts as the standards agency for the protocol.
Dolby Digital
Dolby Digital is the common version containing up to six discrete channels of sound.
The most elaborate mode in common usage involves five channels for normal-range
speakers (20 Hz - 20,000 Hz) (right front, center, left front, right rear and left rear) and
one channel (20 Hz - 120 Hz allotted audio) for the subwoofer driven low-frequency
effects. Mono and stereo modes are also supported. AC-3 supports audio sample-rates
up to 48 kHz.
* Dolby Digital
* DD (an abbreviation for Dolby Digital, often combined with channel count;
for instance, DD 2.0, DD 5.1)
* AC-3 (Audio Codec 3, Advanced Codec 3, Acoustic Coder 3.
EPG
Electronic Program Guide is a digital guide to scheduled broadcast television or
radio programs, typically displayed on-screen with functions allowing a viewer to
navigate, select, and discover content by time, title, channel, genre, etc. by use of their
remote control, a keyboard, or other input devices such as a phone keypad.
Content can also be scheduled for future recording (Recording is only optional possible)
by a personal video recorder
(PVR). The on-screen information may be delivered by a dedicated channel or
assembled by the receiving equipment from information sent by each program
channel.
eSATA
A variant of SATA meant for external connectivity with the following characteristics: *
Minimum transmit potential: Range is 500-600 mV. * Minimum receive potential: Range
is 240-600 mV. * Identical protocol and logical signaling (link/transport-layer and above),
allowing native SATA devices to be deployed in external enclosures with minimal
modification.
FEC
Stands for Forward Error Correction. This is a system of error control for data
transmission, whereby the sender adds redundant data to its messages, also
known as an error-correction code. This allows the receiver to detect and correct errors
(within some bound) without the need to ask the sender for additional data. The
advantages of forward error correction are that a back-channel is not required and
retransmission of data can often be avoided (at the cost of higher bandwidth
requirements, on average).
HDMI
Stands for High-Definition Multimedia Interface. It is a compact audio/video
interface for transmitting uncompressed digital data. HDMI connects digital audio/
video sources—such as set-top boxes, Blu-ray Disc players, personal computers
(PCs), video game consoles (such as the PlayStation 3 and some models of Xbox
360), and AV receivers—to compatible digital audio devices, computer monitors,
