Promax GV-998 Manuel D'utilisation page 66

Sound modulation
Modulation type
Pre-emphasis
Internal modulation
Deviation
External modulation
Subcarrier
Pilot frequency
Tolerance
Modulation
Modulation index
Identification frequency
Information combination
B/G/D/K Systems
M System
DIGITAL SOUND (NICAM)
Sound carrier
Frequency
Tolerance
Video / Audio (V/A)
Modulation
Modes
Internal modulation
Internal codification
Bit-rate
TELETEXT
Systems
Frequency
Transmission mode
Data line
Content
"0" level
"1" level
Page 12
Colour pattern generator GV-998
Internal
External
FM
50 µs. B/G/D/K Systems
75 µs. M System
3 kHz ± 10 %, sinusoidal
30 kHz ±2 kHz. B,G,D,K Systems
15 kHz ±5 kHz. M System
0.5 Vpp produce the same deviation as the
internal modulation.
54.6875 kHz. B/G/D/K Systems
55.069924 kHz. M System
<25 ppm
AM
50% ±5%
274.12 Hz DUAL B/G/D/K Systems
276.03 Hz DUAL M System
117.48 Hz ESTEREO B/G/D/K Systems
149.85 Hz ESTEREO M System
Carrier 1: L+R, Carrier 2: 2xR
Carrier 1: L+R, Carrier 2: L-R
ON/OFF and DUAL/STEREO selectable.
5.850 MHz in B/G/L systems
6.552 MHz in I system
< 10 ppm
20 dB in B/G/I systems
27 dB in L system
4QPSK
DUAL and STEREO
1 kHz and 3 kHz, selectables
10 bits/sample. 32 samples/block
728 kbits/s
PAL B/G/I/D/K ON/OFF selectable
6.9375 MHz
NRZ (no return to zero)
From 12 to 15 and 21 in the odd fields.
From 322 to 328 and 334 in the even fields.
Indix page and four data pages in 4 different
languages.
Black level
66% ±5% of the white level
12/2004