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TELE-satellite International — The World‘s Largest Digital TV Trade Magazine
— 1 -12/2012
—
www.TELE-satellite.com
an audible confirmation tone
with the push of every but-
ton and the selection of the
desired signal level units
(
dBµV, dBmV, dBm) and
goes all the way to setting
a level at which the analyzer
defines a signal as accepta-
ble and attenuation settings
that can be set to 10, 20 or
30
dB.
Ideally, the analyzer
should be left in the factory-
set Auto mode in which the
HD-T2 automatically sets the
optimal value. An integrated
sleep timer that is settable
between 1 and 30 minutes
and can be activated if need-
ed so as to prevent acciden-
tal draining of the battery if,
for example, you should for-
get to turn off the analyzer
during a lunch break.
In order to make the HD-T2
attractive to as many users
as possible, Horizon made
the OSD display available in
12
different languages.
Once we set up all of the
settings exactly the way we
wanted to, we could hardly
wait to start using the HD-
T2. In no time at all we had
the analyzer connected to
our VHF/UHF antenna on
the roof of our test center
and with excited fingers we
pressed and held the “ON”
button until the HD-T2 came
to life.
Unlike signal reception
via satellite, the DVB-T/
T2 frequencies for a given
programme are completely
different for each regional
transmitter (exceptions to
this are countries with a
single frequency network
–
SFN) so that the same
broadcaster, for example, in
southern Austria transmits
on a different frequency,
say, in eastern Austria.
But Horizon was fully
aware of this anomaly with
DVB-T/T2 reception and
provides prefabricated fre-
quency plans for various
regions of the world. These
frequency plans, for exam-
ple, for Ireland, Italy, Great
Britain, The Czech Republic,
Poland, Denmark, Germany,
Australia, South Africa, Aus-
tria, etc., are available from
Horizon’s website
www.hori
-
zonhge.com and are eas-
ily loaded onto the analyzer
through its USB port.
We’ll explain more about
this later, but for now suffice
it to say that these lists can
be transferred from a PC to
the HD-T2.
Through the first menu
selection “Choose Transmit-
ter”, the user has access to
precisely this frequency data
from which either the de-
sired region is first selected
and then the local broad-
casting location or the DVB-