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TELE-satellite International — The World‘s Largest Digital TV Trade Magazine
— 1 -12/2012
—
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is entered, instead the user
has to enter this in manually
as well while selecting the
required polarization voltage
of the LNB.
Additional reception pa-
rameters such as modulation
type, symbolrate or FEC are
not necessary; after press-
ing the enter button, the
DTE-3137 automatically ana-
lyzes the entered frequency
and recognizes all the neces-
sary parameters on its own.
A green dot in the StreamX-
pert’s status bar indicates
that the DTE-3137 was cor-
rectly able to read and pro-
cess the selected frequency.
Next, all the usable infor-
mation from the incoming
transponder stream is then
instantly displayed in the
two main windows includ-
ing a complete PID overview
as well as the content of all
the information tables such
as PAT, CAT, PMT or NIT. As
useful as all of this informa-
tion can be, sometimes you
might just want to know
what channels are being re-
ceived by the DTE-3137 at
that moment. No problem,
with just a few mouse clicks
the StreamXpert software
shows all of the available TV
and radio channels on the
currently received transpon-
ders. These channels can
also be viewed live. It makes
no difference if it’s an SD or
HD channel; keep in mind
though that encrypted con-
tent cannot be decoded due
to the lack of a CI slot.
Underneath the frequency
and modulation entry fields
are the control buttons for
recording the current tran-
sponder stream. With just a
few mouse clicks, the soft-
ware can record the entire
transponder stream onto the
hard drive of the PC. Thanks
to the Gigabit Ethernet con-
nection the recording func-
tion worked perfectly even
on HD content with large
amounts of data without
putting much of a load on
the processor.
Additionally, the StreamX-
pert software allows other
basic settings such as dis-
playing PIDs in decimal or
hexadecimal format, the use
of the hardware acceleration
of a DVXA compatible graph-
ics card for the live display
of DTE-3137 received chan-
nels on a PC, the selection
of the reception mode to be
used (DVB, DVB-RSC or the
American ATSC) and the cre-
ation of a complete log file in
XML format.
Changes to the displayed
transponder stream cannot
be done with the StreamX-
pert software; it can only be
used to completely and pre-
cisely record the data stream
on a PC as it was received as
well as display all the inter-
nal values to the user.
Through the web interface
the operational mode of the
DTE-3137 can be switched to
SMPTE with just one mouse
click and after a quick hard-
ware restart, numerous
additional menu points ap-
pear in the receiver’s web
interface. The user now has
the capability to modify a
variety of reception param-
eters via the web interface
and also how the user can
have control over the data
output via the network con-
nection. The tuner control,
apart from its graphical rep-
resentation,
corresponds
exactly to the depicted op-
eration via StreamXpert. Via
its own status page the user
will receive all of the neces-
sary and interesting param-
eters (such as modulation
type, symbolrate, FEC, BER
or SNR) of the currently se-
lected transponder. The sta-
tus indicator ‘Locked’ tells
the user that the DTE-3137
is in operation and process-
ing received data.
For the output via net-
work, there are two differ-
ent modes available: Unicast
and Multicast transmission.
The difference between the
two modes simply has to do
with the number of receiv-
ers. While Unicast is meant
for one single receiver, Mul-
ticast streams can be re-
ceived and processed by a
group of receivers. All of the
required IP parameters can
be entered directly in the
DTE-3137’s web interface;
this also functioned without
any problems in our tests.
Transmissions can take place
in RTP mode as well as UDP
mode making the DTE-3137
a truly universal device.
To monitor and control the
DTE-3137 in SMPTE mode,
not only can the integrated
web server come into use,
but also any SNMP client. As
we mentioned at the begin-
ning of this report, DekTec
provides the required MIB
files for this purpose. As
before, we created a con-
nection to the DTE-3137 via
the iReasoning MIB browser
that allowed us to read and
display a multitude of us-
able information. The possi-
bilities range from hardware
status information (such
as internal temperature) to
tuner parameters that have
a direct influence on recep-
tion. Thanks to the easy-to-
understand MIB browser, the
user can select any value
from the numerous possibili-
ties that would be interest-
ing to him and display them
in an organized table format.
The Unicast or Multicast
transponder stream data
can also be received and re-
corded by the StreamXpert
software. It automatically
adapts itself to the DTE-3137