- 20 -
- 20 -
Setting the input frequency (transponder frequency)
Notes:
– If three dots “
…
” appear in the second line of the display,
the Cassette is in the “
station search
” mode.
Please wait until the process has finished.
Once the HF receiver has synchronised to the input signal,
any offset to the target frequency is displayed in MHz, e.g.
“
– 0.4
”.
– If a question mark “
?
” appears in the second line of the
display, there is no input signal present. Check the configu-
ration of the antenna system and head end as well as the
preceding settings of the Cassette in question.
• Use the
▶
◀
/
buttons to place the cursor under the
number to be changed and set the input frequency with
the buttons
.
• Press
to adjust the input frequency so that the offset
is less than 1 MHz.
• Press the
button.
—> The sub-menu “Testing the signal to noise ratio” –
“
C/N
” is activated
Testing the signal to noise ratio
In this menu you can estimate the quality of the input signal.
Bx 1A
14.6 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.
M
Bx 1A
f=11836
INPUT:
-0.4
▶
◀
/
+
–
/
* )
Kanalzug B
Channel strip B
Bx 1A
14.6 dB
C/N
(+ 9.6)OK
