User`s manual

P ULSAR BG Main Scr/Aux Unscr
Page 11
6 ALIGNMENT
To align the PULSAR with scrambled signals.
•
Connect a test signal with full white (1 Vpp) to the
AUX input. Use the AUX loop through to connect
the same signal to the scrambler. The scrambler output is then connected to the
MAIN input. Now
the same signal is available at both inputs, only one is clear while the other one is scrambled.
•
Put the scrambler in clear mode (unscrambled).
•
Start with selecting RECALL FACTORY in the
CONFIG menu. Now the default settings are in-
stalled.
•
Select the VIDEO DC OFFSET in the
MODE menu with the RIGHT or LEFT arrow.
•
The modulation depth of the
MAIN input is indicated. Pushing the UP or DOWN arrow will result in
the following display:
!THIS IS AN ALIGNMENT!
<PRESS ENTER OR ESCAPE>
•
Press
ENTER
SETTINGS
LEVEL MODE
FREQ
VIDEO DC OFFSET:
_ _ _ _ _ _ _ _ _ _ _ _ _ _
+000
M=88%
•
Align the Video DC-offset to obtain the correct modulation depth (and RF-level). The correct
modulation depth depends on the standard.
•
The modulation depth of the scrambled video signal can be changed in the usual way. See the
user’s manual.
As long as the scrambler remains the same, the offset should not be
changed.
REMARK