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03-04/2014 —
TELE-audiovision International —
全球发行量最大的数字电视杂志
PC. Each instance appears in a
separate window that does not
interfere with others so that an
overall impression of different
channels on the chosen tran-
sponder can be created. This
feature even gives you the
option of launching the appli-
cation for each single channel
on a transponder, thus creat-
ing a live mosaic view. There’s
only one word for it: brilliant!
Additional windows can be en-
larged if required and the only
limit is your PC’s processing
power. At any rate, with DtTS
and modulated the UltraHD
transponder from DVB-S2 into
DVB-T2. MuxXpert was used
on the software side. This is a
software multiplexer that can
be configured through XML
files and allows any combina-
tion of input-output stream
multiplexing. So what did I
get out of all this? Well, noth-
ing less than perfect reception
of the UltraHD test channel
that has been modulated into
a DVB-T2 signal. And the best
part? Even my rather weak PC
could handle and display the
signal flawlessly.
DtGrabber+
Recording
This is your number one
choice for recording a trans-
port stream. DtGrabber+ Re-
cording takes the transport
stream from any DekTec card
that is installed and saves it
as a TS file. As an alternative,
a network transport stream
(IPTV) can be recorded as
well. This setup allows to use
the DTE-3137 receiver from
DekTec, for example, which is
an autonomous professional
satellite receiver for DVB-S2
that feeds the received trans-
port stream into the network.
Thanks to its small size it is
wonderfully suited for rack in-
stallation in a control cabinet.
If you want to find out more
about this excellent device
please have a read of our test
report that was published in
TELE-audiovision 11-12/2012.
After I had installed Dt-
Grabber+ Recording on my
test computer, the software
detected the DTA-2138 card
right away and allowed me to
modulate the received signal
into DVB-C, DVB-C2, DVB-
T or DVB-T2. Here, too, we
found that the application is
not only extremely easy and
self-explanatory to use, but
also does not require a lot of
processing power and there-
fore hardly affects your PC’s
resources. After a double-
click on the application icon it
is ready for use more or less
immediately. If you’re inclined
to assume now that so much
ease of use might ultimately
affect the range of available
Television being a lean and
streamlined piece of software
and with the DTA-2138 card
not requiring CPU capacity for
demodulation, you should be
able to go a long way before
bringing your PC to its knees.
To give you an impression of
how far you can go: During
our test I was able to open up
to ten windows with ten live
channels using an ageing Intel
Core 2 Quad PC with 2 GB of
RAM. Talk about efficiency!
And while I was at it I
wanted to check out whether
the UltraHD test transponder
of HISPASAT (30.0W) could
be passed on as a DVB-T2
modulation as well. It is in a
situation like this that you
thank heavens for DekTec
with its many different hard-
ware components that can
be shuffled and combined to
your heart’s content. For my
particular job all I had to do
is match the new DekTec DTA-
2137C card – which features a
DVB-S2 receiver with two ASI
IN/OUT interfaces that can
be freely configured – to the
DTU-215 Gold USB modulator.
This combination did the trick
