Wisi 14MM-VX29B, Руководство по эксплуатации

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WISI
VALUE LINE
© WISI Communications GmbH & Co. KG wisi.de -23-
VX 29 B series
RF amplifier, remotely powered
Operating instructions
example.csv:
311.25;PAL
319.25;PAL
330;QAM
338;QAM
4.5 Auto-Alignment
The auto-alignment functionality allows for a quick and easy, error-free optimum
level adjustment of the VX amplifier chain.
Principle and sequence of the auto-alignment process
Follow these steps in order to execute the auto-alignment:
1. Make sure that the ALSC mode is set to „off“.
2. Auto-Alignment functionality is reliant on the
number of reference channels
(pilots) set to “two pilots”.
3. Choose two channels from your RF channel lineup and set the pilot frequencies
and the pilot modulation formats accordingly. If possible, select two
frequencies far apart from each other.
4. Enter the
target downstream level
and the
target downstream slope
which you want the amplifier output to provide. Please respect the note on the
reference point for the measurements on page 21 (section 4.4).
5. Select whether or not to perform the automatic upstream alignment .