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Testing the signal to noise ratio
In this menu you can estimate the quality of the input signal.
Bx 4A
12.0 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.
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 “
??
”. In this case test the input signal.
—> In addition to the indicator in the display, there is a
status LED which indicates the quality of the received
transport stream (level and C/N).
—> If the LED lights yellow the SAT IF input level and the
signal to noise ratio must be tested.
LED indicator
Indication
Green
Signal quality is good
Yellow
Signal quality is insufficient
Red
No signal
• Press the
button to return to the main menu.
Status LED
"Tuner A"
Status LED
"Tuner B"