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Idiomas disponibles
User manual
1.- TECHNICAL SPECIFICATIONS
1.1.- COFDM-QAM
ref. 5556
Input loop through losses: < 1.2 dB
Input frequency:
COFDM
Mast amplifiers powering: Selectable 0V-12V-24V
Demodulator
Input SAW filter:
Frequency steps:
Locking margin:
Modulation format:
QAM
Symbol rate:
Modulator
Roll-off factor:
Output frequency:
RF
Frequency steps:
Output
Maximum output level:
Power consumption:
General
Protection index :
( * ) 6.9 Mbaud in processing mode (selectable) / 7.2 Mbaud in transparent mode
The technical specifications are defined with a maximum room temperature of 40º C.
174-230 MHz (BIII) /
474-858 MHz (UHF)
or channel table
(<50mA)
7 - 8 MHz selectable
1 MHz
± 500 KHz
16QAM, 32QAM, 64QAM,
128QAM, 256QAM
6,9 / 7,2 Mbaud max*
15%
46 - 862 MHz
or channel table
250 KHz
84 ±5 dBµV
5V: 0,65 A
15V: 0,35 A
12/24V: 0,05 A (to power preamplifiers)
IP20
29
COFDM QAM - TS PROC
Input level:
-60 to –20 dBm
(8K, 64 QAM, FEC 2/3)
Input VSWR (75 ohm):
> 12 dB (46 - 862 MHz)
FFT:
2K, 8K
Constellation:
QPSK, 16 QAM, 64 QAM
Guard interval:
1/4, 1/8, 1/16, 1/32
Viterbi rate:
1/2, 2/3, 3/4, 5/6, 7/8
Transmission standard:
ETS300744
Block code:
RS(188, 204)
Scrambling Interleaving:
ETS300429
Output spectrum:
Normal/Inverted
(selectable)
Regulation margin:
15 dB min.
VSWR output (75 ohm):
10 dB min. 14 dB typ.
Through losses:
< 1.5 dB (46-862 MHz)
Spurious band level:
55 dBc min. 60 typ.
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