COMARK Communications features the EXACT digital TV exciters for the ATSC and DVB markets. The EXACT exciter is designed to work either in stand-alone mode with OEM DTV transmitters or fully integrated into COMARK medium and high power digital TV transmitters. The exciter is packaged in a compact 1RU platform with a flexible FPGA architecture and is available with an optional +20dBm internal preamplifier. The EXACT platform is software upgradeable either remotely or locally.
EXACT DTV exciter features:
  • Unique DualCast ATSC 1.0 to 3.0 upgradeable, protects investment

  • Fully compliant with DVB standards (DVB-T, DVB-T2, DVB-T2 Lite), optional PAL output

  • Compact 1RU platform, integrated or stand-alone operation

  • User friendly but advanced WEB GUI local or remote control

  • Industry Leading Digital Adaptive Precorrection (DAP)

  • Dual TS inputs (SMPTE-310M or ASI), provides seamless A/B input redundancy

  • Optional transport stream over IP (TSoIP) with GigE

  • Embedded forward and reflected RF power measurements

  • SNR, shoulders, and FWD / RFL power monitoring via front panel

  • Optional SNMP client, activated via software license

EXACT-ATSC Datasheet Link
EXACT-DVB Datasheet Link

The EXACT exciter from COMARK features Emmy® award winning Digital Adaptive Precorrection (DAP) technology. DAP corrects both linear and non-linear distortions in the transmitter system yielding the best possible SNR. DAP can also compensate for performance variances due to changes in environmental conditions, component aging, or reduction of output power.
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