DATA
TECHNICAL
Manufacturer
Horizon Global Electronics Ltd, First Floor Office
Allen House, Edinburgh Way, Harlow, Essex
CM20 2HJ, United Kingdom
Tel.
+44-1279-417005
Email
sales@horizonhge.com
Model
HD-T2
Function
Digital Meter for Analogue,
and
Signals
Input frequency
48 - 862
MHz
compatible
yes
Modulations
QPSK, 16-QAM, 64-QAM, 256-QAM
Carriers
: 2
k/8k
: 1
k, 2k, 4k, 8k, 8k+Ext, 16k, 16k+Ext, 32k, 32k+Ext
Guard Intervals
: 1/4, 1/8, 1/16, 1/32
: 1/4, 19/256, 1/8, 19/128, 1/16, 1/32, 1/128
Code Rates
: 1/2, 2/3, 3/4, 5/6, 7/8
: 1/2, 3/5, 2/3, 3/4, 5/6
Bandwidth
5, 6, 7
and 8 MHz
PLP Mode
SISO / MISO
PLP Constellation
Automatic and indicated with ( R )
Rotation
Display
128
x 64 Pixel
OSD Languages
English, French, German, Italian, Spanish, Dutch, Polish,
Swedish, Danish, Norwegian, Croatian, Finish
RF-Input
F-Type (75 Ohm impedance)
USB Port
yes
Power supply
100-240
V AC, 12V DC
Battery
2.4
Ah Li-Ion
+
–
www.TELE-satellite.com/TELE-satellite-1111/eng/horizon.pdf
More about this company
Thomas Haring
TELE-satellite
Test Center
Austria
39
www.TELE-satellite.com
—
1 -12/2012 —
TELE-satellite International —
全球发行量最大的数字电视杂志
take care of any bugs as well
as add new features.
In our tests, the HD-T2
was recognized without any
problems by our Windows 7
test PC and after only a few
seconds was linked to our
PC. Horizon makes new fre-
quency tables and firmware
available in .exe format so
that the user merely has to
start the .exe file and then
click on the “Transfer” but-
ton – it really doesn’t get
any easier than this.
We set up a total of three
test scenarios for the HD-T2:
the first was an adjustment
of a UHF antenna, the sec-
ond was the measurement
of DVB-T and DVB-T2 signals
that we generated using a
modulator and thereby were
able to induce correspond-
ing error bits, the third was
comparison measurements
of analog and DVB-T signals
using an analyzer from an-
other manufacturer.
Adjusting a UHF antenna
with the HD-T2 was a simple
as it could be; thanks to the
preprogrammed frequency
lists we were able to find
the right broadcaster for our
location in just a very short
time and with the help of the
very sensitive signal param-
eter measurement the an-
tenna was set to its optimal
position in no time at all.
We were then able to iden-
tify all the DVB-T and DVB-
T2 signals; even a weak
DVB-T2 test signal from the
Austrian ORF, that up until
then we didn’t know about,
came into view.
Thanks to the sensitive in-
put of the tuner, even small
changes to the antenna po-
sition were instantly regis-
tered on the HD-T2 making
it very easy to optimally po-
sition the antenna.
Next we modulated a DVB-
T2 signal with a total of four
HD channels on a UHF carri-
er frequency and fed this to
the HD-T2. Even as we inten-
tionally deteriorated the sig-
nal, it did not affect the new
Horizon analyzer; it contin-
ued to show the correct and
appropriate measurements
–
even the star ratings given
by the HD-T2 became less
and less until finally only one
star remained.
Last but not least, we
were especially curious how
the HD-T2 would compare to
another professional signal
analyzer. Since this other
analyzer could only process
DVB-T signals, we could not
perform this comparison
test with DVB-T2 signals.
As you can see with the
pictures accompanying this
test report, the measured
signal levels are virtually
identical. This speaks highly
of the quality of the Horizon-
built tuner and complements
the exceptional impression
that we received from this
analyzer.
Even the transferring of
the Logger data stored in the
analyzer functioned without
any problems. It was really
fun using the HD-T2, espe-
cially the exporting of data
in CVS format, and thus to
MS Excel, is an extremely
practical feature.
In conclusion we want to
congratulate Horizon on an-
other superb product that
bolsters the reputation of
the company. The HD-T2 has
all the functions that a pro-
fessional installer would ex-
pect, is exceptionally easy to
use and at only 1200 grams
(2.6
Lbs) is very lightweight.
Thanks to the powerful
battery the HD-T2 can be
used uninterrupted for up to
six hours along with its ex-
ternal power sources.
In our tests the HD-T2
proved itself many times
over.
Reacts very quickly to signal changes, pro-
cesses DVB-T, DVB-T2 and analog signals.
Its ease of use, low weight and practical car-
rying case makes it a joy each time to use the
HD-T2. Thanks to the constellation diagrams,
interference signals can easily be identified;
with the help of the complete scan and the
spectrum display even frequencies that were
up until then unknown could be identified, read
and processed. The Logger function makes possible the cre-
ation of a complete measurement protocol while the Slope test
helps in the identification of sloping signal levels.
None
Expert Opinion