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DTA-112 - ATSC/DVB-T/QAM VHF/UHF modulator for PCI  


ATSC/DVB-T/QAM VHF/UHF modulator for PCI

Cost-effective variant of the DTA-115 with 75-Ω BNC main output and support for ATSC, QAM-A/B/C and DVB-T.

The DTA-112 is no longer in production, but the card is still available in limited quantities and remains supported in DekTec's SDK and software.


Key Characteristics

RF frequency VHF, UHF
47 to 862MHz
Mod. bandwidth 5 to 8MHz
RF output level -31.5 to 0dBm (QAM)
-34.5 to -3dBm (OFDM)
Typical MER ̃40dB
Phase noise <-90dBc @ 10kHz

Inputs and Outputs

RF out 75-Ω BNC
RF out monitor 75-Ω F female
Slot PCI

Modulation Standards

Included with base product ATSC 8VSB

PC Support

OS Windows 7, 8, 10, 11
Windows Server 12, 16, 19
Linux ≥2.6.18, 3.x, 4.x, 5.x
Processor Core i5 minimum
Core i7 recommended

Or equivalent AMD CPUs


StreamXpress Play TS files and control modulation parameters
StreamXpert Analyze your received transport streams using our analyzer software
SpRcApi StreamXpress remote control API for automated playout and modulation
DekTec SDKs Create your own full-custom application with modulated output via the DTA-112


DTA-112-SP1.354Stock: 25+
ATSC/DVB-T/QAM VHF/UHF modulator for PCI with StreamXpress player software.
DTA-112-SXP2.514Stock: 25+
ATSC/DVB-T/QAM VHF/UHF modulator for PCI with StreamXpert analyzer and StreamXpress player software.

Prices exclude applicable sales tax, shipping charges and customs duties. Quantity discounts may be available, please request a quotation.


  • All-channel upconverter 47 to 862MHz covering entire VHF and UHF band
  • Output amplifier with programmable 0 to 31.5dB attenuator in 0.5dB steps
  • Supports all constellations and modulation modes for each supported standard
  • Bi-directional DVB-ASI port
  • Monitor output for direct connection to the antenna input of a digital receiver
  • Programming interface (DTAPI) is fully compatible with other DekTec digital-video output adapters


  • Driving set-top or handheld receivers for demos, at shows, in electronics stores, for software development, repair, production testing or performance testing
  • Signal validation: check out whether your receivers can handle a new transport stream
  • Create your custom application with direct RF output

Block Diagram

DTA-112 block diagram

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