EchoStar dsb-709 fta 用户手册
Receiver description
Section 5
DSB-709 FTA
Page 5 - 1
©
2003
E
c
hoS
ta
r I
n
te
rnat
ion
a
l
Cor
p
or
at
ion
Al
l ri
g
h
ts
re
se
rv
e
d
English
5
GLOSSARY
C-band
A frequency range (3.70-4.20 GHz) used for satellite broadcasts.
DiSEqC
A standard through which it is possible to let a DiSEqC compatible
receiver send a signal over the RF cable to a switching device to
switch between different LNBs or dishes. The DiSEqC uses the 22
kHz signal to control the switching device.
receiver send a signal over the RF cable to a switching device to
switch between different LNBs or dishes. The DiSEqC uses the 22
kHz signal to control the switching device.
Feedhorn
A part of the dish which collects the signals from the dish. The signal
is then fed to the LNB(F).
is then fed to the LNB(F).
Frequency band
A frequency band is a range of frequencies which are dedicated to a
certain usage. In the satellite area, commonly known bands are the
C-band and the Ku-band.
certain usage. In the satellite area, commonly known bands are the
C-band and the Ku-band.
FTA
An unscrambled broadcast which you can view without additional
payments to a service provider.
payments to a service provider.
Horizontal
In the satellite industry, horizontal is used to indicate the direction in
which the received signal is polarized. Normally you will find that it is
abbreviated as H.
which the received signal is polarized. Normally you will find that it is
abbreviated as H.
KU-band
A frequency range (10.70-18.00 GHz) used by most European TV
satellites.
satellites.
LNB
A device behind the feedhorn which processes the signal into a
format which is understood by the receiver for further processing
format which is understood by the receiver for further processing
LNBF
A LNB with an integrated Feedhorn. So the LNBF comes as one
single unit.
single unit.
NTSC
USA video standard with image format 4:3, 625 lines, 60 Hz and
4 MHz bandwidth with a total of 6 MHz video channel width.
4 MHz bandwidth with a total of 6 MHz video channel width.
PAL
European video standard with image format 4:3, 625 lines, 50 Hz
and 4 MHz bandwidth with a total of 8 MHz video channel width.
and 4 MHz bandwidth with a total of 8 MHz video channel width.
Polarization
Broadcasts are done in a particular frequency band. To make
maximum use of a frequency band and bring you the maximum
number of programs, the broadcasts are polarized in different ways
to fit as many as possible programs into one frequency band.
maximum use of a frequency band and bring you the maximum
number of programs, the broadcasts are polarized in different ways
to fit as many as possible programs into one frequency band.
RS-232 connection
A RS-232 connection allows you to connect equipment to the
receiver which supports the RS232 protocol.
receiver which supports the RS232 protocol.
SCART cable
A SCART cable is also known as ‘Peritel’ cable and is commonly
used in Europe to connect the audio and video equipment. A fully
furnished SCART cable has 21 wires which is at both sides finished
with a 21-pin connector.
used in Europe to connect the audio and video equipment. A fully
furnished SCART cable has 21 wires which is at both sides finished
with a 21-pin connector.
SMATV
A satellite master antenna TV system is a system which shares the
reception resources and is intended for the distribution of TV and
radio signals to the user in one ore more buildings.
reception resources and is intended for the distribution of TV and
radio signals to the user in one ore more buildings.
Symbol rate
Information in the stream which tells the receiver at which speed
(rate) the transponder sends the digital information (symbols). The
receiver must be able to handle the symbol rate to process the
signal correctly into a correct image.
(rate) the transponder sends the digital information (symbols). The
receiver must be able to handle the symbol rate to process the
signal correctly into a correct image.
Transponder
Equipment inside a satellite responsible for receiving a single
uplinked channel and rebroadcasting it back to Earth.
uplinked channel and rebroadcasting it back to Earth.
USALS
USALS means Universal Satellites Automatic Location System. A
USALS mount (manufacturer Stab) has an internal satellite
database which makes the installation of a DiSEqC motor quite
easy. After you have entered the latitude and the longitude (position)
of the dish, the dish moves automatically to the selected satellite.
For detailed information, please visit: www.usals.info.
USALS mount (manufacturer Stab) has an internal satellite
database which makes the installation of a DiSEqC motor quite
easy. After you have entered the latitude and the longitude (position)
of the dish, the dish moves automatically to the selected satellite.
For detailed information, please visit: www.usals.info.
Vertical
In the satellite industry, vertical is used to indicate the direction in
which the received signal is polarized. Normally you will find that it is
abbreviated as V.
which the received signal is polarized. Normally you will find that it is
abbreviated as V.