Technical characteristics – Televes DVB-S2 COFDM User Manual
Page 5
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1. Technical characteristics
1.1. DVBS2-COFDM ref. 563101, DVBS2-COFDM CI ref. 563301
* The unit’s consumption with CAM will depend on the type of CAM being used (only ref. 563301).
For the LNB it is considered a standard consumption of 300 mA.
The technical characteristics described are defined for a maximum ambient temperature of 45°C (113ºF). Forced ventilation is used for higher temperatures.
Satellite
Demodulator
Input frequency
950 - 2150 MHz
Through loss
< 1,5 dB typ.
Symbol rate
10 - 30 Mbaud DVB-S2 (QPSK - 8PSK)
2 - 42,5 Mbaud DVB-S (QPSK)
Modulation
DVB-S2 (QPSK, 8PSK)
DVB-S (QPSK)
Frequency steps
1 MHz
Internal FEC
LDPC (9/10, 8/9, 5/6, 4/5, 3/4, 2/3, 3/5,
1/2)
Input/Output connectors
“F” female
External FEC
BCH (Bose-Chaudhuri-Hocquenghem)
Input impedance
75 ohm.
Roll-off factor
20%, 25%, 35%
LNB power supply
13/17V/ OFF 22KHz (ON/OFF)
Input VSWR
10 dB min.
COFDM
Modulator
Modulation format
QPSK, 16QAM, 64QAM
Scrambling
DVB ET300744
Guard interva
1/4, 1/8, 1/16, 1/32
Interleaving
DVB ET300744
FEC
1/2, 2/3, 3/4, 5/6, 7/8
Cell_id
Selectable
Bandwidth
7 MHz, 8 MHz
Output spectrum
Normal / Inverted (Selec.)
RF output
Output frequency
177 - 266 / 474 - 858 MHz (CH mode)
45- 862 MHz (frequency mode)
Through loss
< 1,5 dB typ.
Frequency steps
125 / 166 KHz
Return loss
> 12 dB typ.
Maximum output level
80 ±5 dBμV (progr.)
Input/Output connectors
“F” female.
Attenuation
>15 dB (prog)
Output impedance
75 ohm.
General
Consumption @ 24V
(with signal)*
563101
270 mA (LNB power OFF)
480 mA (LNB power ON)
563301
280 mA typ. (no CAM inserted; LNB power OFF)
330 mA typ. (CAM inserted; LNB power OFF)
500 mA typ. (no CAM inserted; LNB power ON)
540 mA typ. (CAM inserted; LNB power ON)
Protection index
IP20