Seite 141 - TELE-satellite-1201

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5
6
7
8
Norm
SD HD Main Usage Areas
Transmission Receiver
DVB-T
yes
no
Europe, Parts of Asia and Africa, Australia
Terrestrial
STB
DVB-T2
yes
yes
Parts of Europe and Africa
Terrestrial
STB
DVB-H
yes
no
Parts of Europe and Asia
Terrestrial
Smartphone*
DVB-C
yes
yes
Europe
Cable
STB
DVB-C2
yes
yes
Parts of Europe
Cable
STB
QAM
yes
no
Europe
Cable, MVDS
STB
ISDB-TB
yes
yes
South America
Terrestrial
STB
ATSC
yes
yes
North America
Terrestrial
STB
DMB-TH
yes
yes
China
Terrestrial
STB
CMMB
yes
no
China
Terrestrial
Smartphone*
141
www.TELE-satellite.com —
12-01/2012 —
TELE-satellite International — The World‘s Largest Digital TV Trade Magazine
1. The DekTec DTU-215 modulates a DVB-T signal from
an original transponder stream via satellite
2. Signal measurement without artificially introduced
errors
3. Signal measurement with artificially introduced
errors through the modulator
4. The signal curve in the spectrum with high output
level
5. The signal curve in the spectrum with low output
signal
6. Signal measurement with artificially introduced
errors through the modulator
7. Through the introduction of data containing errors,
the display on our analyzer was significantly distorted
8. Clean image without any modulator introduced error
bits
those from a DVB-S2 tran-
sponder with multiple HD
channels.
Streams stored in this
manner find their way 1:1 in
the Stream Player Software
which are then completely
read and modulated into the
desired output data stream.
In the software’s main
window the user is pre-
sented with three large text
fields that contain informa-
tion on the transponder
stream, which channels it
contains, the PIDs that are
in use and the data rate that
was used to send it.
Since the DekTec DTU-
215 cannot receive a live in-
put signal and instead relies
on a stream that is already
available, the Stream Player
Table 1: The most important modulation standards supported by the DTU-215 Gold Edition
(*Note: If you are connecting to a SmartPhone without an antenna input jack, an external transmitter would be necessary)