- 25 -
- 25 -
ration of the antenna system and head end as well as the
preceding settings of the Cassette.
• Use the
▶
◀
/
buttons to place the cursor under the
number to be changed and set the input frequency with
the buttons
.
• Press
to adjust the input frequency so that the offset
is less than 1 MHz.
• Press the
button.
—> The sub-menu “Testing the signal/noise ratio” –
“
C/N
” is activated.
Testing the signal to noise ratio
In this menu you can estimate the quality of the input signal.
Bx 1A
14.6 dB
C/N
(+ 9.6) OK
1
Current signal to noise ratio
2
This value shows the difference between the quality
of the input signal and the threshold of the tuner at
this type of modulation.
Note:
At a value lower than “
5
” picture dropouts can
occur.
3
If
“
OK
” is shown, the signal to noise ratio is ok.
If a value < 5 is shown under
2
the display changes
from “
OK
” to “
??
”.
• Press the
button —> Return to the main menu.
• Press the
button.
—> The menu “Setting the station filter” – “
Filter
” is
activated.
Bx 1A
f=11836
INPUT:
-0.4
▶
◀
/
+
–
/
Bx 1A
14.6 dB
C/N
(+ 9.6)OK
Bx 1A
f=11836
INPUT:
-0.4
▶
◀
/
+
–
/
Bx 1A
14.6 dB
C/N
(+ 9.6)OK
