Alitronika DVB-T/H/C Modulator (USB)


The smallest multi-standard modulator for DVB-T/H/C (QAM-A/B/C) ATSC 8-VSB and ISDB-T modulation, with a VHF and UHF up-converter

£843.00 £1,011.60

Use this compact modulator for a broad range of your DVB-T/H/C, ATSC, and ISDB modulation requirements, with a VHF & UHF Up-converter, IF & RF outputs, a DVB-ASI Input, and compatibility with Windows XP, Vista, Windows 7 & Windows 10 Drivers + SDK & Linux Drivers. You have the option to either modulate from Transport Stream files stored on a hard-disk, or from the Transport Stream on the ASI input.

Product Features

  • Supports DVB According to Standard A1010 Rev1 and EN50083.

  • Modulation of Transport Stream files from Harddisk.

  • Modulation of Transport Stream from the ASI input.

  • All modulation processes are carried out by the hardware so that there is no load on the PC processor

  • Supports Burst or continuous modes, 188 and 204 packet sizes.

  • Bitrates:

    • DVB-T/H : 4.98 MB/s to 31.67 MB/S. 
    • DVB-C : 14 MB/s to 65 MB/S. 
    • ATSC : 10.76 MBaud to 19.30 MBaud. 
  • Output

    • RF Output
    • IF Output


Targeted for Digital Video Professionals, Sophisticated End Users and OEMs the AT278USB is an ideal solution for a number of applications such as:

  • Development Tools for DVB-T/H/C Receiver R&D.

  • IP to DVB Gateway.

  • DVB-T/H/C & ATCS Transport Stream Generation.

  • Stand alone COFDM ( Terrestrial ), QAM ( Cable TV ) & ATSC signal generator for Test & Validation.

  • Demonstration and Trade Shows.

  • DVB-T/H/C & ATSC output for OEM product.


DVSStation3/4/IP: Alitronika devices are supported by DVSStation3/DVSStation4 or DVSStationIP, Alitronika's free Transport Stream Player, Recorder, Analyser and converter application software. Please refer to the specification and User Manual of these applications for more information.

General Spec.

  • On Board Buffer: 16 Mbytes.

  • IF Connector: 75 Ohms BNC.

  • IF Output Frequency: 35-37 MHz or 69-71MHz adjustable in 1Hz steps.

  • RF Connector: 75 Ohms BNC.

  • RF Output Frequency Range: 50MHz to 1000MHz.

  • RF Output Power over bandwidth: -15dBm to -50dBm, adjustable in 0.5dB steps.

DVB-T/H Spec.

  • Channel Bandwidth: 5MHz, 6MHz, 7MHz, 8MHz.

  • COFDM Spectrum: 2k,4k and 8k carriers non-hierarchical.

  • Standards: COFDM according EN 300 744.

  • Modulation Modes: QPSK, 16QAM and 64QAM.

  • Guard Interval Modes: 1/32, 1/16, 1/8 and 1/4.

  • FEC Code Rates: 1/2, 2/3, 3/4,5/6, 7/8.

  • Spectral Inversion: Both inverted and non-inverted.

DVB-C Spec.

  • Channel Bandwidth: 6MHz, 8MHz.

  • Standards: QAM according EN 300 744.

  • Modulation Modes: 16QAM, 32QAM, 64QAM, 128QAM and 256QAM.

ATSC 8-VSB Spec.

  • Channel Bandwidth:6MHz.

  • Standards:A/53 8-VSB.

ISDT Spec.

  • Channel Bandwidth: 6MHz

  • Standards: ARIB STD-B31


  • DVB-ASI Input Connector: 75 Ohms BNC.

  • DVB-ASI Input return loss: 15dB.

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