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 oc-
cur.
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
also a status LED which indicates the quality of the
received transport stream:
LED indicator
Indication
Green
Signal quality is good
Yellow
Signal quality is poor
Red
No signal
Off
The channel strip (modulator)
is switched off
• Press the
button to return to the main menu.
• Press the
button.
—> The “Setting the station filter” – “
PROGRAM
” menu
is activated.
Status LED
Channel strip "A"
Status LED
Channel strip "B"