HD encoder modulator mpeg4

Product overview

Key Features

 Up to 1920*1080@50I/60I supported

 MPEG2 HD/MPEG4 HD video encoding

 2* HDMI in (2 for backup), 1*ASI in

 2*RF DVB-T out (2 carriers combined output), double output bandwidth

 Simultaneously encoding each channel more than 18Mbps

 LCN support (Logical Channel Number)

 Excellent modulation quality MER≥42dB

 RF Frequency range 30Mhz~960Mhz

 LCD display, Remote control and firmware

 Updates via web/Ethernet

 Lowest cost per channel --- breakthrough price

Specification

Encoding section

Video

Audio

DVB-T modulator section

System

General

Firstly, it is to guarantee the sound picture quality of HD programs.

As we all know, to guarantee the picture quality of 1920x1080@50I/60I resolution HD program, the video bit-rate may exceed 15Mbps, even up to 16-18Mbps. However, the maximum possible bit-rate output for single DVB-T carrier is only around 30Mbps.

18Mbps x2 =36Mbps > 30Mbps.

It means the single DVB-T carrier simply can't carry the 2 channels 1080i HD program if the average bit-rate exceeds 15Mbps.

That's why we design 2*DVB-T carrier modulation board which double the maximum possible bit-rate bandwidth up to 60Mbps, which rightly makes it reliably carry 2 channel HD programs output simultaneously.

Below brief chart will help to more clearly illustrate the working principle.

Secondly, it is cost-saving.

Its high integration allows users to transmit more programs with fewer devices. It undoubtedly saves the cost for you and me.