Televes COFDM-PAL Manuel D'utilisation page 44

User manual
d.- Video format
The following menu to appear is the Video
format. This lets us select the type of output
for the video mode when transmissions in
16:9 are being received.
There are three possible ways to adapt the
picture to the screen format 4:3.
- Pan&Scan: The picture is put in the centre
and cut down the sides.
- Full Screen: The picture adapts to the
whole screen but its contents are defor-
med..
- Letterbox: The whole image is displayed
but two black bars are added along the
top and bottom.
e.- Audio subcarrier
By pressing the button again, the audio
subcarrier frequency in MHz selection
menu appears. The possible values that are
selected using the and
4.5, 5.5, 6.0 and 6.5 MHz.
For example, for 5.5 MHz:
f.- Audio mode
The following menu that appears is the audio
mode menu. The different modes are selec-
ted by using the & buttons.
The available options are:
The (L+R)/2 channel is modu-
lated.
The R channel is modulated.
The L channel is modulated.
44
g.- Video carrier
The following menus let us choose the diffe-
rent modulation parameters. The first of
these lets us choose the video carrier level
(modulation depth) from 8 possible values
, buttons, are
(from 1 to 8), using the
For example :
The relationship between the parameter
selected and the programmed modulation
depth is the following (approximately):
1: 68.5%
2: 72%
3: 75.5%
4: 77%
h.- Audio deviation
By pressing the
access the following menu, where we can
choose the audio deviation (audio level).
There are 14 possible values (from 1 to 14)
that can be selected using the
buttons. For example 5:
COFDM-PAL
and
buttons.
5: 79%
6: 80%
7: 81%
8: 82.5%
button, it is possible to
and