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DTA-2115 - All-Standard All-Band Modulator for PCIe  


All-Standard All-Band Modulator for PCIe

DekTec's highest-end modulator for satellite, terrestrial and cable standards, prepared for the latest standards such as ATSC 3.0. The DTA-2115 has a programmable output level up to 0dBm and exceptionally low phase noise.

The DTA-2115 is not in production any more. It has been replaced by the DTA-2115B, which has the same RF performance as the DTA-2115, but adds some features including 8-channel modulation, GPS synchronization to 1-pps and 10-MHz inputs and phase-noise emulation.


Key Characteristics

RF frequency VHF, UHF, L band
32 to 2186MHz
Mod. bandwidth Up to 72MHz
RF output level -50 to 0dBm
Typical MER 42dB
Phase noise <-116dBc @ 10kHz

Inputs and Outputs

RF out - main 50-Ω SMA
RF out - monitor 75-Ω F female
PCI Express PCIe3 x1

Modulation Standards

Included with base product ATSC 8VSB
DVB-T, DVB-T2 single PLP
Options ATSC-M/H
ATSC 3.0
DVB-T2 multi PLP
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-2115

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-2115


All-standard all-band modulator for PCIe with StreamXpress player software.
All-standard all-band 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, UHF and L-band.
  • Excellent signal quality through direct digital synthesis of the RF output signal and an on-board ultra-low phase noise oscillator.
  • Can be used for wide-band advanced modulation schemes, such as 16-MHz multi-segment ISDB-Tmm, DVB-S2X and 64-MHz DVB-C2 channel bonding.


  • High-end 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 72-MHz.

Block Diagram

The DTA-2115 reads data from the PCI Express bus and forwards it to a baseband modulator, a channel filter, an optional channel simulator and an upconverter. The digital RF signal is converted to analog with a high-speed D-to-A converter and output on a main and monitor output.

DTA-2115 block diagram

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