TELE INTERNATIONAL - TELE-satellite International Magazine

Although LNB prices have dropped dramatically
in the past few years, so has the quality
in many cases. Despite the specifications
for universal LNBs, many times what’s on
the box is not inside. Sat-slopes have found
their ways to many users. Just to stabilise
the signal, but with a loss in signal quality.
Especially with SCPC signals, it often
happens that the AFC of the receiver cannot
keep track of the shifting signal that the
LNB supplies. High-quality data reception is
out of the question. And so far, we haven’t
talked about the polarisation separation.
All of this will result in just one thing: no
reception at all or just some mosaic pictures,
which are not really fun.
Blue Line MTI must have recalled the old
days of satellite reception. In those days, the
highest qualified importers were allowed to
take their pick of 25 LNBs out of a box of
100 pieces. Every LNB was supplied with a
measuring protocol.
For MTI the Blue Line is of great importance
and before supplying you with one,
they have to be absolute sure about the
quality. Only LNBs with the highest specifications
are allowed to come in blue, all
single pieces checked and meeting the highest
specification demands.
Regarding noise figure, polarisation separation,
equalised frequency spectrum and
http://www.TELE-satellite.com
Hand-picked LNBs
stability, only the best will get the blue
housing with the MTI logo and serial number.
MTI is sure about the quality of these
superb LNBs and gives you a 30 months’
warranty. The blue colour may be appealing
to you, still what is inside is of much
greater importance. SCPC reception will be
of no problem with this LNB and getting a
signal from the other polarisation is almost
impossible.
MTI has developed these LNBs with
users in mind who are demanding high
quality data reception or who are living in
extreme weather conditions. Especially the
north of Scandinavia has seen many LNBs
just stop because of the extreme cold. The
same goes for countries with extremely high
temperatures.
Available Blue Line types are AP8-T2B
(universal with high-and low band), AP82-
T2B (twin LNB) and the AP84-T2B (quad
LNB for analogue and digital reception
in distribution networks). Except for the
power consumption which varies between
110 and 280mA, the specifications of all
these LNBs are the same. A noise figure of
0.7dB (at 20°C) is guaranteed. Signal shifting
is very low. Within a 26MHz range, it
is only ±0.5dB. Polarisation separation lies
at 25dB. Frequency shifting is only ±1MHz
at normal temperature and +3MHz in
extreme conditions. All these figures are
guaranteed by MTI.
More Information
-www.TELE-satellite.com/TSI/9908/mti.shtml
Although the price may be just a little
higher, the benefit of proper signal reception
will prevent a lot of stress and problems
later on. And with a 30 months’ warranty,
you are certain of a good reception for many
years. Of course, this all depends on the rest
of your equipment, but with this MTI LNB
you could not make a better start.
AP8-T2B, AP82-T2B,
AP84-T2B Blue Line
Manufacturer
MTI
RF-Input
10.7-11.7 GHz
11.7-12.75 GHz
IF output
950-2150 MHz
LOF
9.75/10.6 GHz
LOF Deviation
±1 MHz (max) at 20°C
±3 MHz (max) at -40°C or +60°C.
Noise figure
0,7 dB (at 20°C)
IF amplification deviation
0,5 dB within a 26 MHz segment
Cross-polarisation reduction
25 dB (typ.)
Current
110, 250, 280 mA (Typ)
Polarisation switch
11,5-14V (vertikal)
16-19V (horizontal)
Band switch
Unterband 0 kHz
Oberband 22 kHz (±4 kHz)
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