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60 TELE-audiovision International — The World‘s Leading Digital TV Industry Publication — 03-04/2015 —
The carrying strap can be
attached in a number of ways,
so that the meter can be carried
along comfortably over a long
period of time.
cannot resist the temptation
of leaving everything to the
user, which in turn makes the
meter resemble a convention-
al spectrum analyser. Form a
technical standpoint, this may
be a purposeful approach, but
in the real world many install-
ers are simply overwhelmed
by having to set up their me-
ter quickly and correctly for a
specific job. The example of
SLR cameras springs to mind
in this context: Those reflex
cameras also allow virtually
limitless adjustment options
so that you can eventually
shoot the perfect photo. But
– and this is a big but – you
need to be in the know so that
you can actually put all those
options to practice, and you
also need enough time to take
care of all settings before you
can press the shutter. What’s
the alternative for achieving
great results in an efficient
way? Easy, just use automatic
mode.
We believe Spaun has taken
a step in the right direction
with its pre-defined settings
for a number of different re-
al-world scenarios. After all,
time equals money for profes-
sional installers and most of
them will be more than happy
for Spaun to take the burden
of spectrum configuration off
their shoulders. Five different
modes are pre-set, and you
should find that they are all
you’ll ever really need:
Normal: High resolution
with standard refresh rate.
Max Hold: Activated peak
hold mode.
Medium: An average value
is shown for each frequency.
Single: Single spectrum
run for documentation pur-
poses.
Fast: Very high refresh
rate with slightly reduced
resolution – ideal for aligning
satellite antennas.
In addition, different meas-
urement types are available
in spectrum mode:
Level: Measurement of the
signal amplitude at a marker
position.
Delta: Measurement of the
signal amplitude between two
marker positions.
Power: Automatic meas-
urement of the signal power
of digital carriers.
C/N: Automatic measure-
ment of the carrier-to-noise
ratio.
For the terrestrial spectrum
it is possible to activate the
so-called LTE mode, which
simulates the effects of an
LTE filter. This way techni-
cians can make a qualified
decision whether or not an
LTE filter is required or ben-
eficial in the end. This is an
extremely handy tool in eve-
ryday use.
The spectrum can either be
presented as an area or as a
line, and naturally the scal-
ing can be adjusted manually
or be left at automatic. The
measuring span can be set
in pre-defined steps ranging
from 1 MHz all the way to the
entire frequency range. The
touchscreen allows users to
position markers anywhere in
the spectrum simply by tap-
ping the corresponding posi-
tion. If you’re anything like us