CONTENTSERVERTMR6 -
      DRM30/DRMplus


  • DRM Professional 방송시스템
  • DRM Audio Server – 멀티스트림 리얼타임 인코딩
  • DRM Multimedia Data Server – All Data Services
  • DRM Multiplex Generator – Standard MDI/DCP 출력 스트림
  • LDM, One Core Layer / One Enhanced Layer
  • Top class of RF 성능
  • 출력레벨 : 0 to +20dBm
  • Tx ID 관리
  • Latest state-of-the-art Digital Precorrection
  • Clock & Synchronization
  • Web GUI & SNMP, Front panel display
  • 1RU Standalone rack, 250 x 483 x 44mm
  •       DRM Modulator -
          Exciter LV


    DRM 30 : below 30 mHz, Including the SW, MW and LW bands
  • Robustness modes A, B, C, D
  • Spectrum occupancy 4.5, 5, 9, 10, 18, 20 kHz
  • MSC modes 16QAM, 64QAM and hierarchical
  • SDC modes 4QAM and 16 QAM
  • Interleaver length 0.4 s and 2 s
  • EEP and UEP with all protection ratios / code rates

    DRM+ : above 30 MHz, incling the VHF1, II(FM) and III
  • Robustness mode E
  • Spectrum occupancy 96 kHz
  • MSC modes 4 and 16 QAM
  • SDC modes 4 QAM, CR 0.5 and 0.25
  • Interleaver length 0.6 s
  • EEP and UEP with all protection ratios / code rates

  • Input Interface
  • 2 Ethernet (100 Mbit) for MDI/DCP
  • 10 MHz input
  • 1 PPS, NMEA (RS232) for external GPS/Glonass/Galileo

  • Output Interface
  • 1 Digital IQ via AES/EBU XLR (48, 192 kHz)
  • RF out via BNC
  • 100 to 3000 kHz @ -20 dBm
  • 87.5 to 108 Mhz @ -3 dBm

  • Configuration and Monitoring
  • Web GUI
  • LCD Display
  • SNMP

  • Transmission Features
  • SFN / MFN
  • GPS/Glonass/Galileo module integrated
  • Spectrum Shaping
  • Transmit Diversity
  • Crest Factor Reduction
  • Analog Co-Distribution
  • AM/DRM30, FM/DRM+
  • Pre-correction to linearize analog transmitters

  • Reliability & Fallback
  • Input MDI/DCP stream with data protection
  • Multi-MDI & Monitoring Failover
  • Local MDI-Backup
  •       T-DMB/DAB Monitoring -
          RF DAB
    RF 신호 상태 측정
  • Spectrum
  • QAM constellation
  • Channel impulse response
  • RF input power
  • Frequency offset
  • SNR, MER, MER over carrier
  • TII decoding
  • BER (MSC, FIC) before Viterbi
  • BER (Audio, FIB) after Viterbi

    Common Feqtures
  • DAB ETSI EN 300 401 compliant
  • DAB Mode I, II, III & IV
  • VHF Band III
  • 입력주파수 : 168 ~ 240 MHz, 1452 ~ 1492 MHz
  • 입력신호레벨 : 0 ~ -96 dBm
  • DAB 앙상블 디코딩
  • DAB/DAB+ 오디오 디코딩
  • Full Ensemble EDI 출력 - Ethernet
  • DCP/EDI output via Ethernet
  •       DRM Monitoring Receiver -
          RF-SE


    RF 신호 상태 측정
  • Spectrum waterfall
  • QAM constellation
  • Power spectrum and spectrum mask
  • Channel impulse response
  • Channel estimation
  • SNR, MER, Field strength
  • Location of an external USB GPS receiver

    RF-Frontend DRM30 & DRM+
  • DRM30 : 100 kHz to 30 MHz
  • DRMplus : 47MHz to 240 MHz
  • 입력레벨 : -100 to +20 dBm
  • Input Level Accuracy ±1 dB
  • SNR > 45 dB
  • MER > 45 dB

    Application Decoder
  • Audio : HE-AACv2, xHE-AAC, with MPEG Surround
  • Audio rate, Sampling rate, mode 정보분석
  • Service description, EWF decoding
  • Data 서비스 : TextMessages, Journaline, Slideshow
  • Statistical information of each service

    알람 기능
  • Spectrum mask violation
  • RF and SRN level 에러
  • Audio drop out of level
  • MDI 에러
  • 서비스 ID 에러
  • Frequency offset

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