Description

DTMB HD Encoding   Modulator (DT Series)

Overview

The DT Series HD Encoding & Modulator (all-in-one) supports up to 8 × HDMI inputs​ and 2 × RF DTMB (DVB-T/C) outputs. The encoded and modulated output signal can be configured via the front panel LCD and NMS (Network Management Software). Its highly integrated and cost-effective design makes it widely used in various digital distribution systems such as:

• Cable TV digital head-ends
• Satellite digital TV broadcasting
• Terrestrial digital TV systems

Features

• Integrated encoder and modulator
• 8 × HDMI input
• DTMB (DVB-T/C) RF output
• DTMB (DVB-T/C) RF frequency range: 36 – 900 MHz​
• Control via front panel keyboard + LCD​ and network management​
• Optional HDCP (High-Bandwidth Digital Content Protection)​ support

• Technical Specifications

  Video Encoding

  • 8 × HDMI 1.3 inputs​
  • Encoding format: 4:2:0 H.264 HP@L4, MP@L3, H.264/MPEG-4 AVC​
  • HD resolutions:
    • 1920 × 1080 @ 60/50Hz (1080i/p)
    • 1280 × 720 @ 60/50Hz (720i/p)
  • SD resolutions:
    • 720 × 576i (PAL)
    • 720 × 480i (NTSC)
  • Bitrate: 1.0 ~ 15 Mbps, continuously adjustable per channel

  Audio Encoding

  • Audio source: Embedded audio from HDMI
  • Sampling rate: 48 kHz
  • Bitrate: 64 / 128 / 192 / 256 / 384 kbps

  DTMB Modulation

  • Output level: 85 ~ 105 dBμV
  • Frequency range: 30 ~ 900 MHz, 1 kHz step
  • Interleaving: 240, 720
  • Level attenuation: 0 ~ 20 dB (0.5 dB step)
  • Standard: GB20600-2006
  • Constellation: 4 QAM-NR, 4/16/32/64 QAM
  • Frame mode: 420 fixed, 595 fixed, 945 fixed, 420 variable, 945 variable

  DVB-C Modulation

  • Interface: RF, F-type connector, 75 Ω
  • Frequency range: 47 ~ 870 MHz (1 kHz step)
  • MER: ≥ 40 dB
  • Error correction: RS code (188/204)
  • Symbol rate: 5 ~ 9 Msps
  • Constellation: 16 / 32 / 64 / 128 / 256 QAM
  • Output level: ≥ 115 dBμV, ≥ 100 dBμV
  • BER: 0

  DVB-T Modulation

  • Transmission mode: 2K, 8K
  • Frequency range: 36 ~ 900 MHz, 1 kHz step
  • Output level: 60 ~ 90 dBμV, ≥ 100 dBμV
  • Bandwidth: 6 MHz, 7 MHz, 8 MHz
  • Constellation: QPSK, 16 QAM, 64 QAM
  • Baud rate: 1/2, 2/3, 3/4, 5/6, 7/8
  • Protection interval: 1/32, 1/16, 1/8, 1/4

  Control

  • Remote (IP): NMS (via Ethernet port, RJ-45, 10/100Base-TX)
  • Local: Front panel keyboard + LCD

  General

  • Dimensions: 482 mm × 410 mm × 44 mm
  • Operating temperature: 0 ~ 45°C
  • Storage temperature: -20 ~ 80°C
  • Power supply: 100 ~ 240 V AC, 50 Hz, 25 W

Model Number Options