Fully agile from 32 to 3225MHz
The ultimate test modulator in your lab
Accurate GPS and card-to-card sync

  • Description
  • Specifications
  • Ordering Info


All-digital modulator, generating a wide range of cable, satellite or terrestrial standards, or even your own software-defined RF signal. Ideal for digital TV testing, SFN deployment, GPS/GNSS emulation, and beyond.

DTA-2116 Features

  • High-end modulator for cable, terrestrial and satellite TV testing.
    • Generate arbitrary RF waveforms using precomputed I/Q sample playback.
    • Produce RF signals with calibrated power levels over a wide frequency range.
    • Synchronization to a 10MHz/1pps timing reference source with exceptional accuracy.
    • Simultaneous starting of multiple boards with sub-nanosecond precision.
    • All-digital design for highest signal quality.
    • Channel simulator with multipath echo and AWGN white noise addition.
    • Free Windows and Linux SDK (DTAPI).

Modulation standards (included)



–   Modulation standards: ATSC-M/H, ATSC-3.0, CMMB, DAB(+), DRM(+), DTMB (ADTB-T, DMB-T/H), DVB-C2, DVB-S2X, DVB-T2 MPLP, ISDB-S, ISDB-T, ISDB-S3, ISDB-Tmm, T-DMB
–   I/Q sample playout
–   AWGN insertion
–   Multipath echo simulation
–   Remotely controlled playout

DTA-2116 Applications

  • R&D: Ideal for developing and testing digital TV equipment, as well as experimenting with new RF modulation schemes.
  • Broadcasting: The high signal quality makes the DTA-2116 an excellent choice for actual broadcasting applications.
  • Automatic Testing: Automatically cycle through a range of frequencies, levels and modulation parameters, making it useful for factory testing and automated quality control.
  • Simulation: Simulate GPS, MIMO, or any other multi-transmit antenna configuration.

Block Diagram

The DTA-2116 is an all-digital modulator that generates a high-quality RF signal. Unlike traditional analog modulators, it performs all signal processing digitally, providing increased flexibility and precision. See the functional block diagram below.

The DTA-2116 receives I/Q packets generated by a software modulation process over the PCIe bus. The I/Q packets are buffered in a DDR memory-based transmit FIFO before further processing. The DTA-2116 then performs channel filtering, resampling, gating, and digital upconversion to generate a digitally upconverted modulated signal, which is then converted into an analog RF signal by a high-performance RF-DAC. The analog RF signal is low-pass filtered and amplified or attenuated with a programmable gain.

The DTA-2116’s master clock generator synchronizes the device’s oscillator to either an internal 10MHz oscillator or an external 10MHz timing reference for more accurate or synchronized timing. The Sync block enables synchronous starting with the 1pps input signal, facilitating precise synchronization between multiple modulators.


Main output RF connector                          50-Ω SMA female
Main Output RF Level Range                    -90 .. -5dBm (32-1000MHz)
-90 .. -12dBm (1000-3225MHz)
Main Output Level Step size                       0.1dB
Monitor output RF connector                      75-Ω F female
Monitor Output Level                                    -45dBm
10-MHz/1pps input                                       2x 50-Ω BNC female
Frequency range                                          32 .. 3225MHz
I/Q sample rate                                            0.1 .. 125MHz
Bandwidth (max)                                         100MHz
Transmit MER                                                50dB 9typ)
Phase noise                                                  <-115dBc @ 10kHz
PCI Express                                                  PCIe gen3 x4
OS                                                                  Windows   10/11,  Linux  ≥4.14

Ordering Info

All USA orders will be shipped from our USA warehouse.
All other orders will be shipped from Canada.

DTA-2116  –  All-standard 0-3GHz modulator for PCIe. Includes modulation standards: ATSC 1.0, DVB-C, DVB-CID, DVB-S, DVB-S2, DVB-T, DVB-T2 SPLP, QAM-B, QAM-C

DTA-2116-SP  –  All-standard 0-3GHz modulator for PCIe with StreamXpress player software.
Includes modulation standards: ATSC 1.0, DVB-C, DVB-CID, DVB-S, DVB-S2, DVB-T, DVB-T2 SPLP, QAM-B, QAM-C

DTA-2116-GOLD    –   All-standard 0-3GHz modulator for PCIe with all current and future modulation options, channel simulation and StreamXpress including remote control

NOTE: DekTec does not recommend to purchase DTA-2116 without StreamXpress software

Available Options for DTA-2116 and DTA-2116-SP (included in DTA-2116-GOLD)

  • DTC-305-CM – XpressSim channel-modelling option
  • DTC-370-ISDB – ISDB-T modulation option
  • DTC-371-IQ   – IQ samples playout option
  • DTC-373-IS   –  ISDB-S modulation option
  • DTC-374-DTMB – DTMB (ADTB-T, DMB-T/H) modulation option
  • DTC-375-CMMB – CMMB modulation option
  • DTC-376-DAB   –   DAB(+), T-DMB modulations option
  • DTC-377-MH  –  ATSC-M/H modullation option
  • DTC-378-T2   –  DVB-T2 multi PLP modulation option
  • DTC-379-C2  –  DVB-C2 modulation option
  • DTC-382-Tmm  –  ISDB-Tmm modulation option
  • DTC-383-S2X  –  DVB-S2X modulation option
  • DTC-386-ATSC3  –  ATSC3.0 modulation option
  • DTC-387-ISDBS3 –  ISDB-S3 modulation option

StreamXpress Playout and Control Software Description

  • High-performance playout software
  • Endless play with optional automatic correction of continuity-counter, PCR/PTS/DTS and TDT/TOT fields
  • SOAP-based remote control to automate StreamXpress operations (DTC-302-RC option)
  • Saving and restoring playout parameters using XML-based settings file
  • Reproducible injection of errors in the transport stream with adjustable error rate
  • Easy-to-use control of modulation and channel simulation parameters


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