Topfield TF 7720 HSCI User Manual
Page 33
4.1 Searching broadcasting services
27
The other is K
u
band which ranges approximately from 12 to
18 GHz.
The LNB (Low Noise Block converter)
is used to take a wide band of relatively
high frequencies, amplify and convert
them to similar signals that is carried
at a much lower frequency, which is
called Intermediate Frequency (IF).
High frequencies from satellites are
converted into 950 to 2150 MHz by a
LNB.
Select the Installation > LNB Set-
ting
menu to configure the LNB
settings.
You should see a
screen like the left figure.
Pressing the
✄
✂
✁
OK
button on the Satellite Name option displays
the satellite list in alphabetic order. Select the satellite toward
which your antenna is set to face. Even if you cannot find
your desired satellite, you can add your desired satellite to the
satellite list. See §
for detailed description.
The digital receiver has a database about broadcasting satellites
and their transponders, containing the following information:
satellite position, frequency range, symbol rate, polarization
and LNB frequency corresponding to the frequency range. So
you might not have to specify the LNB Frequency option. How-