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DTU-315 | USB-3

High-end modulator for satellite, terrestrial and cable standards, up to the latest standards such as ATSC 3.0 for USB-3

Ordering Information

  • DTU-315-SP - All-standard all-band modulator for USB-3 with StreamXpress® player/testgenerator software
  • DTU-315-GOLD - DTU-315 including all current and future modulation options
  • DTR-315-RACK - 1U 19”-rack mounting kit for holding up to 8x DTU 315

Single item packing: 37,7x14,8x3,8 cm

Netto Weight: 148 gr

Availability: In stock

2 782,-€

* Required Fields

2 782,-€




  • Pocket-size modulator for satellite, cable and terrestrial standards
  • Fully agile from 36 to 2150MHz, covering VHF, UHF and L-band
  • Modulation bandwidth up to 70MHz
  • Excellent signal quality
  • Single USB cable to the DTU-315 supplies power, data and control
  • Supports all constellations and modulation modes for each supported standard
  • Digital channel simulator option including multipath echo and AWGN
  • F and BNC cable assemblies included
  • Use with DekTec’s StreamXpress® for easy generation of RF test signals
  • Free Windows and Linux SDK (DTAPI) for writing your own applications


  • RF test generator in your R&D lab or factory for developing, qualifying or repairing any equipment with a DTV antenna input
  • Portable demo set for TV receivers, easy to carry to customer demos, trade shows, etc.
  • TV transmission or distribution using modulated signals in shops, hotels, hospitals etc.

Key Characteristics

RF frequency VHF, UHF, L band
36 to 2150MHz
Mod. bandwidth Up to 70MHz
RF output level -45 to -25dBm

Key attributes

RF connector 75-Ω micro-BNC female
Frequency range 36 to 2150MHz
Bandwidth (max) 70MHz
I/Q sample rate 0.08 to 70Msps
RF level - Range 45 to -25dBm
RF level - Step size 0.5dB
MER (typical) gt;40dB
Phase noise <-105dBc @ 10kHz
Spectral purity >50dB
USB port USB-3
OS Windows 7, 8, 10


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 DTU-315


StreamXpress Play TS files and control modulation parameters
XpressSim Channel simulator
(StreamXpress option)
T2Xpress DVB-T2 signal generator, full control of modulation parameters and integrated channel simulator
C2Xpress DVB-C2 signal generator, full control of modulation parameters and integrated channel simulator
TmmXpress ISDB-Tmm signal generator, full control of modulation parameters and integrated channel simulator
SpRcApi StreamXpress remote control API for automated playout and modulation
DekTec SDKs Create your own full-custom application with modulated output via the DTU-315


  • Leaflet    
  • Datasheet   

Dektec models are most often differentiated by the sufix e.g. SD, SXP etc., where suffix specifies the SW licence
  • SP = Stream Player (allows you to play/modulate transport stream files, so this makes sence for devices with Output interface)
  • SXP = Stream Xpert (this is MPEG TS ANALYZER, what makes sence for Input devices)
  • SLP = Stream Xper Lite (very limited alternative of SXP, de facto allowing mainly capturing MPEG TS, again makes sence for Input devices)
  • RX = RFXpert RF signal analysys
  • SY = SD Eye (video analyzer)
  • J = Jitter
  • DGL = Dongle license for non Dektec devices
Meaning of abreviations used in beginning of Dektec model names
  • DTA = Dektec adapter (typically PCI, PCI-e)
  • DTU = Dektec USB device both USB-2 and USB-3
  • DTE = Dektec Ethernet standalone networked device
  • DTC = Dektec software license



Form Factor USB-3


Customer Reviews

Versatile product Review by Dab
Despite the fact this product is physically bigger as you would expect from the image, it is extremely versatile signal generator I use to take with myself for field testing. (Posted on 1/2/2018)

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