- 50 -
Video/sound
carrier ratio
13 dB
20 dB
Type of modulation
Int. FM (1 kHz)
int. FM (3 kHz)
(selectable)
Ext. FM
Ext. FM
Max. 0.5 Vpp
Max. 0.5 Vpp
Pre-emphasis
50 µs
50 µs
Modulation deviation
30 kHz
30 kHz
Mode
Dual
L
R
Stereo
(L+R)/2
R
Detection mode
Pilot frequency
54.6875 kHz
(3.5*f
H
)
Modulation
AM
Modulation index
50 %
Identif. frequency
274.1 Hz (f
H
/57) dual
117.5 Hz (f
H
/133) stereo
MODULATION OF NICAM SOUND (OPTIONAL, OPT-698-4)
Carrier
ON/OFF selectable
PAL B,G, L
5.850 MHz
<± 30 ppm
PAL I
6.552 MHz
<± 30 ppm
Carrier ratio
video/sound
20 dB (B,G,I), 26 dB (L)
Modulation
4QPSK
Modes
Mono, dual, stereo
Internal sources
Channel 1
1 kHz, ON/OFF selectable
Channel 2
3 kHz, ON/OFF selectable
Sound reserve flag
ON
Signal coding
32 samples/block
16 blocks.
Transmission speed
728 kbits/s
Pre-emphasis
In accord with CCITT Rec. J17
Spectrum form
40% roll-off cosine (PAL B,G,)
100% roll-off cosine (PAL I)
TELETEXT GENERATOR (LEVEL 1.0 & 1.5) AND VPS (OPTIONAL, OPT-698-3)
Teletext
ON/OFF selectable
(sinc. f
H
)
Frequency
6.9375 MHz (444*f
H
)
Transmission mode
NRZ (no return to zero)
Data lines
From 11 to 15 and 19 to 22 in odd fields
From 324 to 329 and 332 to 335 in even fields
Content
8 different pages (two languages sent
consecutively).
VPS
ON/OFF selectable
Frequency
5.0 MHz
Transmission mode
Biphase
Data line
16 odd field
Content
Selectable through change of chart apart from
the functions stop, start and standby which are
selected through the keyboard.
"0" Level
Black level
"1" Level
66% ± 5% of the white level
Connector
Signal output together with the composite
video by BNC and Euroconnector.
05/96
GV-698
Summary of Contents for GV-698
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