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MDS201 DVB-S2 Modulator

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Overview

MDS201 DVB-S2 Modulator is a high-performance modulator designed by the 2nd generation DVB standard of European satellite communication system, DVB-S2 (EN302 307). It adopts advanced technology of frame structure, channel encoding & modulation. It will bring a 50% increase in transmitting than DVB-S under the same transmission conditions. It has more powerful receiving ability under the same spectrum-efficiency condition. This device can match up with digital TV transmitter of satellite telecommunication system; it is compatible with various operation modes of DVB-S (EN300 421). Therefore, it can be widely used for broadcasting, interactive service, news gathering and other applications from satellite. Local and remote device management are supported.

Features

1. Comply with DVB-S2(EN302 307) & DVB-S (EN300 421) Standard

2. 2 ASI inputs,support hot backup

3. Local and remote device management

4. 10MHz reference clock input

5. RF output range: 950~2150MHz

6. Excellent RF performance,MER≥36db

7. RF output level:-31.5~0dbm,0.5db stepping

8. Adopt OCXO,frequency stability is up to 0.1ppm

9. LCD & Keyboard

10. Support NMS

11. Support NIT inserting

Technical Specifications


Input

Support 188/204 byte packet transport stream

2 ASI inputs, support hot backup

ASI input Connector : BNC, 75Ω impedance

RF Output

Frequency range: 950~2150MHz; continuous and adjustable

Output level attenuation between -31.5~0db(0.5db stepping)

Max output level: 0dBm

MER≥36dB

Connector: N type,50Ω impedance

Coupling power supply:Coupling 24V/output

Reference clock:coupling 10MHz output

Channel coding & Modulation

Standard

DVB-S

DVB-S2

FEC encoding

RS + convolution code

BCH + LDPC

FEC Coding rate

1/2,2/3,3/4,5/6,7/8

QPSK:1/4,1/3,2/5,1/2,3/5,2/3,3/4,4/5,5/6, 8/9, 9/10

8PSK:3/5,2/3,3/4,5/6,8/9,9/10

Constellation

QPSK

QPSK,8PSK

Roll-off factor

0.2, 0.25, 0.35

0.2, 0.25, 0.35

Symbol rate

0.05~45Msps

0.05~30Msps(8PSK);

0.05~45 Msps(QPSK)

General

Environment

0~(Working), -20~(Storage)

Power Supply

100-240VAC, 50Hz-60Hz


Principle Chart

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