COL5600 DVB-T Modulator, Digital headend

Specifications

COL5600 DVB-T Modulator can receive 1 channel ASI and 2 channels QPSK signals separately or together and send to COFDM modulator after signal processing. The signals are upconverted to TV channels after IF processing so as to transmit in HFC and MMDS network. The signals can also be bypassed or modulated output by ASI interface. COFDM coding and modulation are under DVB technology criterion and DVB-T standard.

Features:

# Supporting EN300744 and error correction coding meets to DVB-T standard.

# Can work at QPSK/16COFDM/ / 64COFDM/ mode

# Support 6MHz/7MHz/8MHz BW

# Support 2K/8K carrier wave work mode

# FEC support 1/2,2/3,3/4,5/6,7/8

# Protect time interval 1/4,1/8,1/16,1/32

# 188/204 package self-adapting ,  real time display the format of input signal

# NIT mapping and sending function , support more than 44 frequency point NIT maps

# Support 8 group PID filter and re-mapping function

# Support amending, analysis and extraction function for PSI/SI table. Can make according order

# SI table can be replace and insert

# Input empty package filtrate and output fill in

# PCR correction function , can correct more than one PCR accurately from input data

# Real time detection and display for input system bit rate and effective bit rate

# Self-adapting filter circuit design, guarantee the out-band suppression performance

# Alarm display

# LCD display

# Support Network control interface and  can implement network management remote update and maintenance(selective)

# Power off memory

Technical Specifications

  QPSK input frequency: 950 MHz-2150 MHz

  Symbol rate: 2 MBaud-45 MBaud

  QPSK input level: -79 dBm~-11 dBm

  ASI input>1.5 Mbps

  RF output frequency: 48 MHz~860 MHz

  RF output level: 100dBuV~115dBuV(step: 0.5dB)

  COFDM modulation output bite rate: 2~31.67Mbps

  LCD display, Chinese and English menu

  Power off memory

  RJ-45 interface