Fracarro FRPRO 10A Instructions D'emploi page 43

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The "SELF-ALIGNMENT" menu can be used after programming all the clusters. That way, the Profiler unit will
automatically calculate the powers of each input channel and set the values of all gains, such as the initial
dynamics, the cell gain and the final gain. Therefore, the noise figure of each cluster will be optimized and
the signal's output level and the cells' output level will be equalized automatically.
Note:
the
• The self-alignment algorithm does not consider the input signal given in the B.III, FM, AUX and SAT
ports; that is why the self-alignment must be performed when the above-mentioned inputs have not
yet been connected because a signal given in the input (i.e. AUX) may affect the measurement of the
output level of a few cells.
• The regulation of the input dynamics (level) of these ports must be carried out as described within
paragraph 5.3.2, by considering the possible problems relevant to a too high input level in the above-
mentioned inputs (i.e. intermodulation);
Advanced programming
To perform an optimal alignment, after performing the self-alignment, proceed as follows:
1. Check the quality of the output signal from the Profiler unit by analyzing the presence of holes or tilts in
the spectrum caused by the addition in the counterphase of the cell signals.
2. If the previous check is unsuccessful, change the channel position in the various cells or change the cell
dimensions (number of channels associated to the cell).
3. Perform the self-alignment again and check the quality of each channel (MER and S/N).
4. Modify the value of the input dynamics and find the best compromise between the output level and the
quality of each channel.
After performing the self-alignment, it is possible to modify, by means of the "UHFx INPUT" menu, the single
gain values (dynamics and gain of each cell) of the UHF inputs and of the other inputs as it is described
within paragraph 5.3.2.
To change the output level, change the final gain ("FINAL GAIN" menu) as described in the following para-
graph.
The "FINAL GAIN" menu allows for the modification of all mixed signals' output level (excluding the SAT input
of the FPPRO10S model) with a gain that varies from 0 to 20 dB.
The final gain performs the amplifications of all UHF inputs, B.III+DAB input, FM input and AUX input.
5.4 SELF-ALIGNMENT SETTINGS MENU
SELF-ALIGNING WARNING
SETTINGS V = Start-up
FINAL GAIN FINAL
SETTINGS
GAIN
FINAL
GAIN
SELF-ALIGNING WARNING
SETTINGS V = Start-up
5.5 FINAL GAIN MENU
FINAL GAIN FINAL
SETTINGS GAIN
FINAL
GAIN
Start automatic
adjustment of all gains
To select
Setting the gain level
20
To select
00 dB
01 dB
...
20 dB
00
Start automatic
adjustment of all gains
To select
Setting the gain level
20
To select
00
43
00 dB
01 dB
...
20 dB