CMG2000 is the all-in-one CMMB signal generator which is fully compliant with China Mobile Multimedia Broadcasting standard in China. It can composite China MobileTV/DTV Integrated Test Solution with DMB-TH and ADTB-T option. The RF output is generated by a high performance RF upconverter which covers the frequency range from 50MHz to 870MHz in steps of 1Hz. CMG2000 is the most 
flexible solution for design evaluation and Manufacturing test of CMMB Chip, Tuner development or CMMB receiver such as portable receiver, mobile phone which require a live modulated RF signal.
 

Main Characteristics

• China Mobile Multimedia Broadcasting Signal Generator
• Modulator : CMMB
• China MobileTV/DTV Integrated Test Solution support
  (DMB-TH, ADTB-T : Optional)
• Time-Slot Setting (Max. 40)
• Logical Channel Setting (Max. 40)
• MFN Network mode support
• AWGN/Fading Simulation (Optional)

General Characteristics

• RF Upconverter : 50 ~870MHz
• OFDM Modulation
• PRBS Pattern Test (PRBS-9/ -15/ -23)
• AWGN (support future)
• Modulation Information
• System Information
• Frequency Information
• Frequency Table support
• TS List

Intended Application

• CMMB receiver Design and Manufacturing Test
• Simulation of CMMB Broadcasting
• Broadcasting Transmission
   - CMMB Chip Development (Tuner/MPEG)
   - CMMB Demonstration & Sales

Modulator Specifications

CMMB Module

• Broadcasting system
    - Digital Terrestrial TV : CMMB
• Transmission Parameter
    - Modulation : OFDM
    - Support Mode : 4K
    - Constellations : BPSK, QPSK, 16QAM
    - Byte Interleave : Mode 1, Mode 2, Mode 3
    - RS Coding : RS(240,240);RS(240,224);
                          RS(240,192);RS(240,176)
    - Code Rate : ½, ¾, LDPC
    - Time Slots No. : 40
    - Bandwidth : 8MHz
    - Guard Interval : 1/8

DTMB(DMB-TH) Module (MM-506)

• Broadcasting system
    - Digital Terrestrial TV  : DTMB(DMB-TH)
• Transmission Parameter
    - Modulation : TDS-OFDM
    - Constellations : 4QAM(QPSK), 16, 64QAM
    - Guard Interval : PN420, PN945
      (Frame Header)
    - Coding Rate : 0.4, 0.6, 0.8
    - Bandwidth : 5, 6, 7, 8
    - Time Interleaver : 240, 720

DTMB(ADTB-T) Module (MM-506)

• Broadcasting system
    - Digital Terrestrial TV : ADTB-T  
• Transmission Parameter
    - Constellations : 4QAM NR, 4QAM, 16QAM, 32QAM
    - Guard Interval  : PN420, PN595, PN945
      (Frame Header)
    - Bandwidth : 5, 6, 7, 8
    - Time Interleaver : 240, 720

Function Options

AWGN Module(FM-203)

• C/N range : 0 ~ +45dB
• C/N resolution : 0.1 dB Steps      
• Noise Band Width : 0 ~ 10MHz
   

RF Specifications

• Output Connector : N Type
• RF Output Frequency : 50~870 MHz (VHF/UHF)
• RF Frequency Resolution : 1Hz
• Frequency Accuracy : 3 x 10-6 / 25 ℃
• RF Power Level : -110 ~ 0dBm
• RF Level Resolution : 0.1dB steps
• RF Level Accuracy : ±0.5dB relative to the level at 18-33 ℃
• RF Impedance : 50 ?

General Specifications

• Power supply : AC 100 to 250V, 50/60Hz
• Power consumption : Less than 300W
• Operating temperature : 10 to 40 ℃
• Operating humidity : 20 to 85% RH (No Condensation)
• Storage temperature : -40 to +70 ℃ / 20 ~ 85% RH
• Operating environment : Indoor
• Operating attitude : Around 2000m
• Over-voltage category : II
• Pollution degree : 2
• Dimensions : 435(W) x 231.8(H) x 519.7(D) mm
• Weight : Approx.17Kg (Not including options)

OS system

• Embedded OS
    

User interface system

• 10.4 inch TFT color LCD (1024 x 768)
• Touch Screen

External Interface system

• USB Interface : USB HDD, USB Stick
• Remote Control : RS-232C