42
MULTI-SATELLITE RECEPTION
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LNC triggering with ToneBurst (also mini DiSEqC)
When LNC arrangement 3 is set, a so-called ToneBurst (mini DiSEqC ) signal will be emitted.
This contains the choice of satellite (A/B). This means you can also use the ToneBurst (mini DiSEqC )
switch to switch between the associated LNCs.
If the upper frequency range is chosen, the static
22 kHz signal will be emitted in addition to the
ToneBurst (mini DiSEqC ) signal.
This will enable you to receive and set the ~upper and –lower frequency range of two satellites if
you install two universal LNCs.
Instead of two universal LNCs, you can also connect two 22 kHz relays at the outputs of the
ToneBurst (mini DiSEqC ) switch.
This will enable you to connect up to four single LNCs to receive signals from four different satellites.
See also page 37, LNC arrangement 3.
Note:
When setting LNC arrangements 4 to 6, the ToneBurst (mini DiSEqC) signal is also emitted after
the DiSEqC 1.0 signal.
However, the shortest switching time for ToneBurst (mini DiSEqC ) is achieved in LNC arrangement 3.
–A1 09.750 GHz
$
3 ~A1 09.750 GHz
–B1 09.750 GHz
~B2 09.750 GHz
$
%
✓
Ǻ
/
OK
2 Universal LNCs
e.g. GRUNDIG LNC UNI 3
ToneBurst-
switch (A/B)
e.g. GRUNDIG
SWITCH UNI 2
to satellite receiver
–
: 22 kHz off
~ : 22 kHz on
