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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