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TEST REPORT on the Internet
TELE-satellite International — The World‘s Largest Digital TV Trade Magazine
— 12-01/2012
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Combo Signal Analyzer
This new signal analyzer
is bigger than the other Ho-
rizon meters we have tested
in TELE-satellite. No won-
der, the HD-STM can meas-
ure not only satellite DVB-
S/S2 signals but also DVB-T
and even the old analog TV
and FM radio signals. The
green case color gives this
meter a somewhat military
look, but fortunately its
case is made of ABS plastic,
not metal, and a fully ma-
chined Aluminum front pan-
el. Its weight is also quite
“civilian”. Definitely, you will
not strain your neck when
working with the HD-STM
at 2kg.
The meter sports 10 but-
tons: except for the naviga-
tion arrows and an OK but-
ton in the middle of them,
there is an ON/OFF button
and four “soft” buttons lo-
cated near the LCD. Their
function depends on the
current menu and is always
displayed on the screen.
The last element on the
front panel is the signal in-
put connector. Along with
the meter itself, Horizon
provided us with a short
piece of coaxial cable with
F connectors on both ends,
then an F-to-IEC adapter
and finally 2 pieces of 10
dB signal attenuators for
the 5-1000 MHz range. The
latter ones come in very
handy when measuring the
output of a terrestrial an-
tenna amplifier.
The Horizon HD-STM is
also equipped with a car
lighter type DC charger, a
mains cord with the proper
plug for your region and an
USB cable. As with every
other Horizon meter, you
do not need any external
power supply unit but con-
nect the mains cord di-
rectly to the meter. This is
very practical as it saves
the hassle with a separate
power supply unit, all these
items can be stored in the
padded case supplied.
When you look at the HD-
STM from the right side you
will notice: a slot for a SD
card, the USB port and a
DC power supply input to be
used with the car charger.
The SD card is to be used
to log the measurements
Horizon provides the User
Manual in an electronic form
– a file in PDF format on
the included CD-ROM. We
browsed through it and no-
ticed that it is very detailed
and written in a simple style
illustrated with a huge num-
ber of screen-shots. How-
ever, for the purpose of this
test, we decided not to study
it in detail but start using HD-
STM right away. In this way,
we wanted to check if the
user interface was intuitive
and self explanatory. Right
after the welcome screen,
you have three menu items:
SAT – to measure a satellite
signal, TERR – to measure a
terrestrial signal and SETUP
– to configure the basic set-
tings of the meter. Pressing