- 29 -
HDTV 1000 TD
s
ignal
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 also a status LED
which indicates the quality of the received transport stream:
1
2
3
4
5
6
7
8
9
7
Status LED channel strip A
9
Status LED channel strip B
LED indicator
Indication
Green
Signal quality is good
Yellow
Signal quality is insufficient
Red
No signal
Off
The channel strip (modulator)
is switched off
• Press the
button to return to the main menu.
If the input signal path "
A+B+ASI=1 ASI=2
" is selected the station filter of
channel strip "
B
" is used in the channel strip "
A
". Therefore perform the set-
tings for channel strip "
B
" (LNB oscillator frequency, input symbol rate, DVB
mode, input frequency) according to the pages 25-27, before activating the
"Setting the station filter" – "
PROGRAM
" menu.
If the input signal path "
A+ASI=1 B+ASI=2
" is selected the channel strips can
be programmed one after the other.