Allgemeiner T
eil / General Section
STR 6122 TWIN
1 - 16
GRUNDIG
Service
Multi-Satellite Reception
Tone Burst (Mini-DiSEqC)
With the LNC arrangement 3 option a so-called
Tone Burst signal (also called Mini-DiSEqC signal)
is emitted. This signal comprises the satellite selec-
tion (A/B). A Tone Burst (mini-DiSEqC) switch can
therefore also be used to switch between the assig-
ned LNC’s.
If the upper frequency range is selected, the static
22 kHz signal is emitted in addition to the Tone
Burst (mini-DiSEqC) signal.
It is therefore possible to receive the lower (set-
ting –) and upper (setting
~
) frequency range of
two satellites by installing two universal LNC’s.
Instead of two universal LNC’s you can also con-
nect two 22 kHz relays to the outputs of the Tone
Burst (mini-DiSEqC) switch. Then you can connect
up to four single-range LNC’s to receive the signals
from four different satellites (see also ”LNC arran-
gement 3” on page 15).
With the LNC arrangement 4 to 6 options the Tone
Burst (mini-DiSEqC) signal is emitted after the
DiSEqC 1.0 signal. However, the shortest Tone Burst
(mini-DiSEqC) switching time is obtained with LNC
arrangement 3.
}
A
$
3
$ %
✓
–A 09.750
~A 09.750
–B 09.750
~B 09.750
6
/ OK
6
LNC control system with DiSEqC 1.0
❒
What does DiSEqC mean?
State-of-the-art LNC control using the so-called
DiSEqC protocol (Digital Satellite Equipment Con-
trol, pronounced »die-seck«) is used for the set-
tings of LNC arrangements 4 to 6. The antenna
system used must be designed for the application
in question and for DiSEqC.
With the DiSEqC control system, 22 kHz signals are
emitted which are pulsed in a certain manner and
which contain all the information for the LNC con-
trol system.
The DiSEqC signal (DiSEqC 1.0) is emitted first,
then the ToneBurst (mini-DiSEqC) signal and the
static 22 kHz signal. This allows a great number of
application possibilities.
For every application possibility which you would
like to use, you must enter the appropriate oscilla-
tor frequency of the LNC in the “LNC settings”
menu.
6
H
H
V
V
H
H
V
V
STR 6122
B
A
–
Example: Reception of the low and high frequency range of 2 satellites
Tone Burst (Mini-DiSEqC)
DiSEqC 1.0
~
–
~
–
: lower frequency
range (22 kHz
switching signal
off)
~:
upper frequency
range (22 kHz
switching signal
on)
Universal LNC’s
e.g. GRUNDIG LNC UNI 3
QUATTRO LNCs
e.g. GRUNDIG LNC UNI Q 1
ToneBurst (mini-DiSEqC) DiSEqC
switch (A/B)
e.g. GRUNDIG SWITCH UNI 2
STR 6122
DiSEqC multiswitch
Multi-Satellite Reception/T
echnical Data
The DiSEqC protocol comprises the following pos-
sibilities:
– Polarization H or V.
– Selection between lower and upper frequency
range (– or
~
).
The symbol “–“ means the reception of the lower
frequency range of a satellite. The symbol “
~
“
means the reception of the upper frequency
range.
– Selection between up to 4 satellites (A/B/C/D).
You can therefore receive the lower and upper
frequency range of up to 4 satellites (– or
~
swit-
ches between the frequency ranges, A/B/C/D bet-
ween the satellites).
The oscillator frequencies of the LNC’s can be en-
tered in the „LNC settings“ menu (see page 14).
These switching options are independent of each
other for each of the two tuners A and B connec-
tions.
If the aerial system is accordingly equipped, it is
therefore possible to receive with each tuner
connection the lower and upper frequency range of
up to 4 satellites.
To receive with DiSEqC on one tuner connection the
signals of two satellites, select the LNC arrange-
ment 4 in the “LNC SETUP“ menu (5 or 6, if neces-
sary).
Enter the oscillator frequencies of the LNC’s.
For the programme positions of the corresponding
satellite, you must select that LNC which delivers
the signals which are handled by the multiswitch.
3
2
}
A
$
4
$ %
✓
–A 09.750
–C
09.750
~A 09.750
~C
09.750
–B 09.750
–D
09.750
~B 09.750
~D
09.750
6
/ OK
1
6
Technical Data
Programme positions:
300
Timer:
4 Events, 28 day Timer
Connections:
TV set (TV):
1 x 21 Pin, SCART
Decoder (DEC):
1 x 21 Pin, SCART
Video recorder (VCR):
1 x 21 Pin, SCART
Audio L/R:
2 x RCA, CINCH
LNC input:A
1 x F-socket
LNC input:B
1 x F-socket
LNC switch-over:
+ 13 V/+ 18 V, max. 350 mA
0/22 kHz Signal
Tone Burst signal (Mini-DiSEqC)
DiSEqC 1.0 signal
HF input:
1 x coax, IEC 169/2, socket
HF output:
1 x coax, IEC 169/2, plug
HF:
Input frequency range:
950 to 2150 MHz
Input impedance:
75 Ohm, nominal
IF bandwidth:
18/27 MHz (-3 dB/c)
FM limit value
(static):
≤
6 dB
HF output:
Channel 28 – 47, adjustable,
channel 37 preset.
Video:
Output:
1 Volt (peak-peak), clamped, fil-
tered, equalized, sync output.
Output impedance:
75 Ohm, nominal, direct connec-
tion.
Audio:
Subcarrier frequencies:
Fully tunable 5.0 - 9.0MHz
Frequency response:
40 Hz-18 kHz +/-2 dB
Audio deemphasis:
Panda, 50 µs, J17
THD (at 1 kHz):
≤
0.2% with 30 kHz deviation.
General:
Power consumption:
30 W max.
≤
8W in stand-by
Power supply:
110 – 265 V a.c.,
50/60 Hz
Dimensions:
Width: 400 mm; Height: 70 mm;
Depth: 235 mm
Weight:
2 kg
The unit conforms with the protection requirements
of the 73/23/EWG and 89/336/EWG guidlines of the
European Council. The standards EN 55013/A12,
EN 55020 and EN 60065 required fo the CE certifi-
cation are maintained.
Subject to alteration!
