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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