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EM-01 Wall-mounted Encoder&Modulator

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EM-01 is professional device integrated with Encoding and Modulation functions. It is equipped with A/V or HDMI input. After digital compression, channel coding and modulation will be done according to QAM/DVB-T/ISDB-T/ATSC standard. The modulated signal will be up-converted to the working frequency of digital cable TV, and output in RF. This equipment is with excellent RF performance, and can be used as modulator in the headend of digital cable or MMDS wireless TV network.


Input Interface

RCA or HDMI

CVBS L&R Audio; or HDMI

RF

F-Female

Output Interface

Frequency

RF1 Frequency


F-Female

Modulation

Constellation

QPSK,16QAM, 32QAM

64QAM, 128QAM,

256QAM

Modulation

QAM, DVB-T, ISDB-T, ATSC

Symbol Rate

4.237.000 Mbaud/s

Output Rate

15.5951.6 Mbps

Output Bandwidth

6/7/8 MHz

RF range

54~860 MHz

Output Level

100dBuV~115.5dBuV

Return Loss

12dB

Carrier Suppression Ratio

>55dB


Out-band SNR

50dB


Encoding


Video Encoding

MPEG-2/MPEG-4


Audio Encoding

MPEG-1 L2


Audio Sampling Rate

32kHz, 44.1kHz, 48kHz


Video Coding Rate

2~15 Mbps


Audio Coding Rate

64kbps384 kbps


PSI/SI

PAT, PMT, SDT insertion


Power Supply


Input Voltage

12V/2ADC


Power Consumption

12W


Working Environment


Working Temperature

545


Storage Temperature

-2585


Humidity

10%90%



 Support ITU-T J.83A and B;

 Error correction coding complies with standard QAM/DVB-T/ISDB-T/ATSC;

 Be able to work at QPSK, 16QAM, 32QAM, 64QAM, 128QAM, 256QAM;

 Support QAM/DVB-T/ISDB-T/ATSC modulation;

 Input interface: A/V or HDMI

 Input signal: CVBS or HDMI; support NTSC(525/60)PAL(625/50);

 Video coding: MPGE2 or MPEG-4; video coding output rate: 2-15Mbps;

 Bandwidth of output signal: 6/7/8MHZ;

 Output data symbol rate: 4.237Mbaud/s;

 Bitrate range of RF output data: 15.59~51.6 Mbps;

 RF: 54860MHz;

 Output level: 100dBuV115.5dBuV;

 Adaptive filtering circuit design to ensure excellent out-band rejection performance;

 Embedded program; supporting intelligently upgrade;

 With fault alarm display;

 LCD;

 Elegant design with 1U case;

 With good ventilation system.