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PHDT 1000 H
t
esting
the
signal
to
noise
r atio
In this menu you can estimate the quality of the input signal.
Bx 4A
15.3 dB
C/N
(+ 11.3) 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 Tuner A
9
Status LED Tuner 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.
• Press the
button.
—> The next menu is activated.
Содержание PHDT 1000 H
Страница 1: ...Assembly Instruction PHDT 1000 H ...