DTU-331
Dektec
Portable All-Standard RF Probe for USB-3
DTU-331
Products sold
| Model number | Description | Supplied software |
|---|---|---|
| DTU-331-SX | DTU-331 TS analysis · decoding · recording software pack | · StreamXpert v2: Real time TS analysis · decoding · recording software |
| DTU-331-XPRT-SX | DTU-331 TS analysis · decoding · recording, advanced RF measurements software pack | · StreamXpert v2: Real time TS analysis · decoding · recording software · C2Xpert：DVB-C2 Analysis Software · T2Xpert：DVB-T2 Analysis Software · ATSC3Xpert：ATSc3.0 Analysis Software |
Interface
Input: RF x 1 (ATSC 1.0, ATSC 3.0, DAB(+), DVB-C(2), DVB-CID, DVB-S, DVB-T, DVB-T2 v1.3.1, ISDB-T/Tsb, J.83 annex A/B/C )
Product features
- Dual tuners with I/Q demodulation, A-to-D and sample-rate conversion optimized for SDR technology, enabling reception of VHF/UHF and L-band signals
- SDR technology enables reception of entire channels, outputting all DVB-T2 services in T2-MI and forwarding ATSC 3.0 packets to IP
- Free SDK (DTAPI) provides access to demodulated streams and advanced RF measurements
Functionality *Included with base product
- I/Q sample capturing: You can capture IQ signals with VF-REC: Multifunction TS / SDI recording software *VF-REC: Multifunction TS / SDI recording software is sold separately
- T2MI generation: It is possible to generate the received signal to T2MIoverIP signal with T2Xpert: DVB-T2 Analysis software * T2Xpert needs -XPRT:advanced RF measurements option
Block Diagram
The DTU-331 is an all-band, all-standard SDR receiver based on a dual tuner architecture. A satellite tuner with a 9..60MHz bandwidth enables reception of DVB-S signals, while a second tuner with a bandwidth up to 8MHz adds support for terrestrial and cable standards. A front-end, with an optional RF mixer in the path, allows down-mixing of terrestrial/cable signals located in the L-band before being fed to the 8MHz tuner. The same RF mixer can also be used to downmix satellite signals in the S-band back to the L-band frequencies, so that they can be received with the 60MHz tuner.
The output of the tuners is converted to 16-bit IQ-samples with Analog-to-Digital converters and passed through a low-pass filter and a sample rate converter, which helps to clean up and prepare the signal for processing. At this stage, the IQ samples can be demodulated with the SDR demodulation software in the DekTec SDK (DTAPI) or alternatively, they could be recorded to disk or read into your own SDR application.
* What is Software Defined Radio?
SDR, or software-defined radio, is a technology that allows a radio receiver to be reconfigured through software rather than requiring physical changes to its hardware. This makes SDR receivers, such as the DTU-331 and DTA-2131, highly versatile and adaptable to a wide range of applications. For a more detailed description about SDR please refer to the following Wikipedia page.
Datasheet
Applications
- Measurement receiver for ATSC (3.0), DAB+, DVB-C(2), DVB-T(2), DVB-S, ISDB-T and QAM-A/B/C with unique capability to capture/analyze the full stream and advanced RF measurements
- I/Q front-end for SDR experiments
- I/Q sample recorder
- Impulse response measurements for terrestrial networks
Supported software
- StreamXpert Lite: Real time TS decoding and recording software * Lite version of StreamXpert v2
- StreamXpert v2: Real time TS analysis · decoding · recording software
- C2Xpert：DVB-C2 Analysis Software
- T2Xpert：DVB-T2 Analysis Software
- ATSC3Xpert：ATSc3.0 Analysis Software
- VF-REC: Advanced TS/SDI Recording Software