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DTA-2111 - Multi-Standard Cable/Terrestrial Modulator for PCIe  


Multi-Standard Cable/Terrestrial Modulator for PCIe

DekTec's PCIe modulator for most QAM-, OFDM- and VSB-based modulation standards. The DTA-2111 has a programmable output level with excellent signal quality due to digital upconversion.

The DTA-2111 is an obsolete product that is no longer in production.

For new designs, DekTec recommends the DTA-2111B


Key Characteristics

RF frequency VHF, UHF
36 to 1002MHz
Mod. bandwidth Up to 16MHz
RF output level -32 to -9dBm (QAM)
-35 to -12dBm (OFDM)
Typical MER >40dB
Phase noise <-95dBc @ 100kHz

Inputs and Outputs

RF out 75-Ω F female
PCI Express PCIe1.1 x1

Modulation Standards

Included with base product ATSC 1.0
Options ATSC-M/H
More options I/Q sample playout
AWGN insertion
Multipath echo simulation
Remotely controlled playout
GOLD option All options in this table, plus all future modulation options developed for the DTA-2111

PC Support

OS Windows 10, 11
Windows Server 16, 19, 22
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
XpressSim Channel simulator (option for StreamXpress)
T2Xpress DVB-T2 signal generator with full control of all modulation parameters and with integrated channel simulator
C2Xpress DVB-C2 signal generator
TmmXpress ISDB-Tmm signal generator
SpRcApi StreamXpress remote control API for automated playout and modulation
DekTec SDKs Create your own full-custom application with modulated output via the DTA-2111


DTA-2111-SP1.299No stock
Multi-standard cable/terrestrial modulator for PCIe with StreamXpress player software.
DTA-2111-GOLD4.134No stock
Multi-standard cable/terrestrial modulator for PCIe with all current and future modulation options, channel simulation and StreamXpress including remote control.
Modulation Options

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


  • Supports all constellations and modulation modes for each supported standard, in VHF and UHF, with a fully agile upconverter from 36 to 1002MHz.
  • Excellent signal quality through direct digital synthesis of the RF output signal, without need for calibration.
  • Can be used for wide-band advanced modulation schemes, with the DTC-380-16MHz and DTC-384-SWMC multi-channel options.
  • Digital channel simulator option.


  • Multi-standard general-purpose test modulator in your R&D lab for developing and qualifying DTV equipment, or for experimentation with new RF modulation schemes.
  • Automatic test equipment (ATE) for tuners, demodulator chips, receivers, TV sets etc.
  • Play-back of arbitrary I/Q sample files that are recorded or pre-computed (e.g. with MATLAB), with a bandwidth up to 16-MHz.

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