Shenzhen Eastec Trading Co., Ltd.
Main products:CATV Headend Equipment
Products
Contact Us
  • Contact Person : Mr. Song Andrew
  • Company Name : Shenzhen Eastec Trading Co., Ltd.
  • Tel : 86-755-26615755,13923719206
  • Fax : 86-755-86367227
  • Address : Guangdong,Shenzhen,7-404,Kaili Garden,Science Industrial Park West,Nanshan,Shenzhen,China
  • Country/Region : China
  • Zip : 518057

QPSK Modulator

QPSK Modulator
Product Detailed
QPSK Modulator for Cable TV (CATV) Digital Headend: 1.QPSK Modulator 2.DVB-S Modulator 3.Network Management

QPSK Modulator for Cable TV (CATV) Digital Headend:

Overview

E-4102 QPSK modulator is one of the main equipment of cable digital TV headend,  receiving data from the encoder, multiplexer, DVB gateway, scrambler, video server and other equipment of the DVB transport stream, make RS coding, convolutional interleaving and QPSK modulation channel processing, and provide RF output.

Features

. Comply with DVB standard channel coding;

. Support the full range of the variable symbol rate;

. 8M cache, anti-burst stream;

. Support IP data injection;

. Configurable PID filter, re-mapping, PSI, SI information synchronization update;

. Auto-filled streams filling and intelligent Null Packet removed;

. Support NIT table inserts;

. Real-time stream monitoring;

. PCR correction;

. Local and remote control;

. LCD display in Chinese and English, easy and flexible to operate;

. High reliability design, stable operation.

Technical Specification:

Modulation Mode

QPSK

 symbol rate

1~45Mbaud/s

Error-correcting codes

RS code188/204

Input data code rate

1.0~108Mbps

Channel Data Rate

1~56Mbps

MER

>32dB

BER

0

Input interface

ASI

DVB standard

 

RF Frequency

450~950MHz (or 950-2150)

Output LEV

>=0dBmw

Output LEV adjustable range

0-16 dB(0.5 dBstepping)

Impedance

75Ω

 

Output Return Loss

>=12 dB

General Features

Size

44mm´482´410mm

Environment

0 ~ 45(Operating);-20 ~ 80(Storage)

Power

220VAC±10%,50Hz,25W

Network Management:

 

QPSK Modulator parameter

QPSK Modulator



Copyright Notice @ 2008-2012 ECVERY Limited and/or its subsidiaries and licensors. All rights reserved.