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Setting System Parameters
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The satellite transmission frequencies are within the following ranges:
10.7…11.7 GHz Low-band ( Low-band / analogue transmission)
11.7…12.75 GHz High-band (High-band / digital transmission)
(valid for ASTRA satellites at 19,2° E)
The reception frequency of the receiver, however, is in the range from
950 to 2150 MHz. The high frequencies are therefore converted with
the aid of the oscillator frequency (LO frequency / LO = Local Oscilla-
tor of the LNB) to a lower frequency. Various oscillator frequencies are
used for this purpose depending on the satellite frequency range and
the type of system.
For ASTRA and Eutelsat receiving systems, this frequency is normally
9.75 GHz (9750 MHz) for the lower frequency range (low-band) and
10.6 GHz (10600 MHz) for the upper frequency (high-band). Older re-
ceiving systems still operate in the low-band range with a 10 GHz os-
cillator frequency (not suitable for digital reception).
The receiver generates its required frequency by subtracting the oscil-
lator frequency from the satellite transmission frequency stored for
each channel. You only need to set the respective oscillator frequen-
cies, which your receiving system uses. Therefore, before changing
the LO frequency, make sure that this is at all necessary.
The oscillator frequencies listed above are factory settings.
Changing the oscillator frequency
Move over to the right-hand side in the LNB configuration menu by
pressing
and the setting for L.O. High is highlighted in colour. Us-
ing the number buttons, you can now enter a frequency matching your
system. The same also applies for the L.O. Low setting. Here, press
the
buttons to go to this setting.
Exit the menu by pressing
4 times. The receiver will simultane-
ously confirm that the values have been saved.
If a setting is incorrect, the following message appears on the screen :
Operation
Factory setting is "On."
Normally, the power supply should be switched on.
For communal or party systems, you must check whether the
supply voltage must be switched off!
Standby
Under this menu point, the supply voltage for the LNB in the receiver’s
standby mode can be switched on and off. It can be switched off for
individual and communal systems. The factory setting is "Off."
Reception of two satellites
If your receiver is connected to a multifeed antenna that is also
aligned with the HotBird satellites for instance, you will need to change
the receiver settings for the DiSEqC signal. The same, of course, also
applies to other satellites (DiSEqC = Digital Satellite Equipment Con-
trol).
Bad or no signal