- 23 -
CCS-2 1002
Bx 4A
11836 -1.8
FREQ
CN 12
Bx 4A
12.0 dB
C/N
(+ 9.6) OK
• Use
to position the cursor under the digit of the frequency displayed
to be set.
• Press
to set the respective digit of the input frequency needed.
• Repeat the procedure by the quantity of the digits to be set.
• Set the frequency offset shown in the display (e.g. "
– 1.8
") to less than
1 MHz by varying the input frequency using the
buttons.
• Press the
button.
—> The "Signal to noise ratio" – "
C/N
" menu is activated.
s
ignal
to
noise
r atio
(line a
only
)
In this menu you can estimate the quality of the input signal.
Bx 4A
11836 -1.8
FREQ
CN 12
Bx 4A
12.0 dB
C/N
(+ 9.6) OK
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.
