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Idiomas disponibles
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User manual
c.- Modulador menu 1
This menu shows the following parameters
of the output modulation: video modulation
depth (VMD), video to audio carrier ratio and
subcarrier ratio frequency in MHz.
Video modulation depth: the possible
values for the video modulation depht are:
1: 68.5%
5: 79.0%
2: 72.0%
6: 80.0%
3: 75.5%
7: 81.5%
4: 77.0%
8: 82.5%
Video to audio carrier ratio: there are 8
possible values between -11 and -18 dB.
Subcarrier ratio frequency: for audio sub-
carrier frequency the possible values that
are selected 4.5, 5.5 , 6.0 and 6.5 MHz.
To carry out a modification the
be pressed until the selected parameter flas-
hes. Then the correspondent parameter can
be modified by pressing the
d.- Modulator menu 2
This menu shows the following parameters:
audio level and video format.
Audio level: The value displayed indicates
the necessary audio input level to get a
deviation of ±50KHz considering an input
signal of 1KHz. This means that -15 dBm
will generate a greater audio level than 7
dBm.
key must
and
keys.
The video format: allows the selection of
the video mode for programs in 16:9 format.
Three possible modes are available:
40
QPSK-PAL
Audio input level (dBm)
7
5
3
1
0
-1
-2
-3
-4
-5
-7
-9
-13
-15
- Pan & Scan: Wide screen is scanned
and panned left and right to give a fulll
screen picture
- Letterbox: Picture with black bars on
top and bottom of picture.
- Full Screen: The picture adapts to the
whole screen but its contents are
deformed.
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