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HDTV 1000 SPTS
t
esting
the
signal
to
noise
r atio
In this menu you can estimate the quality of the input signal.
Bx 4A
12.0 dB
C/N
(+ 9.6) OK
1
2 3
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.
5
6
7
8
9
!
@
2
1
4
3
0
LED indicator
Indication
Green
Signal quality is good
Yellow
Signal quality is insufficient
Red
No signal
1
Status LED tuner B
3
Status LED tuner A
• Press the
button to return to the main menu.
• Press the
button.
