32
User manual
COFDM-PAL
1.- TECHNICAL SPECIFICATIONS
1.1.- COFDM-PAL ref. 5054
The technical specifications are defined with a maximum room temperature of 40º C.
Input through losses:
< 1.2 dB
Input VSWR (75 ohm):
> 12 dB (46 - 862 MHz)
Input frequency:
174 - 230 / 474 - 858 MHz
S/N ratio:
> 20 dB
or channel table
FFT:
2K, 8K
Frequency steps:
1 MHz
Constellation:
QPSK, 16 QAM, 64 QAM
Locking margin:
± 3 MHz
Guard interval:
1/4, 1/8, 1/16, 1/32
Input level:
49 to 89 dBµV (-60 to -20 dBm)
Viterbi rate:
1/2, 2/3, 3/4, 5/6, 7/8
(8K, 64 QAM, FEC 2/3)
Max. symbol rate:
31.67 Msymbols/sec.
SAW filter:
Selectable 7 / 8 MHz
Transmission standard:
ETS300744
Input format:
TS MPEG-2/DVB
Video rate:
1.5 to 15 Mbits/seg
Decoding:
MP@ML
Video resolution:
Max. 720 x 576
Input rate:
TS Max. 60 Mbits/seg
Video output:
Composite video PAL
Output frequency:
46 - 862 MHz or
Adjustable margin:
15 dB
channel table
Output VSWR (75 ohm):
10 dB min. 14 dB typ.
Frequency steps:
250 KHz
Through losses:
< 1.5 dB (46-862 MHz)
Maximum output level:
80 dBµV ±5 dB (selec. SW)
Spurious in band:
55 dBc min. 60 typ.
DC bypass:
Selectable 0 / 12 / 24V
(< 50 mA)
Consonmation:
5V
: 1,2 A tip
15V
: 0,4 A tip.
COFDM
Demodulator
RF output
General
MPEG-2
Decoding
Содержание COFDM-PAL
Страница 1: ... Copyright Televés S A COFDM PAL Manuel d utilisation User manual ...
Страница 2: ......
Страница 30: ......
Страница 58: ......
Страница 62: ......
