Dual RF inputs with 2 receivers each
Receives all services in each channel
3G-SDI/ASI output port

  • Description
  • Specifications
  • Ordering Info


DTA-2127 Features

• Four independent channels for receiving DVB-S, DVB-S2 and DVB-S2X (in any mix).
• SDI/ASI port for outputting decoded video or full received Transport Stream.
• DVB-S2(X) features: VCM, MIS (1 stream).
• LNB power insertion (13V/18V 400mA) with DiSEqC interface on each port.
• Receiver provides lock status, RF level, demodulation status, modulation type, code rate, SNR,  MER and BER.
• SDI/ASI output port is fully configurable:
o ASI or SDI;
o SDI: 3G, HD or SD;
o 3G-SDI: level A or level B.
• Free SDK (DTAPI) for Windows and Linux.
• Easy mix and match with other DekTec cards.

DTA-2127 Applications

Receiving all services from 4 transponders and software remultiplexing to IP or a cable network, with either an additional ASI out-put or a software-decoded 3G-SDI output.

Block Diagram

The DTA-2127 consists of four wide-band L-band tuners, followed by four DVB-S2X demodulators.

The DTA-2127 includes two 18V/400mA LNB power inserters with overcurrent protection, as well as dual DiSEqC version 1.x / 2.x LNB control signal inserters.


Modulation standard              DVB-S, DVB-S2, DVB-S2X
DVB-S2                                  EN 302 307
DVB-S                                    EN 301 210
DVB-S2X                               EN 302 307-2
Antenna inputs                        2x 75-Ω F female
Tuning range                          950 .. 2150 MHz
Input sensitivity                     -70 .. -20dBm
Baud rate                              1 .. 54MBd QPSK, 8-PSK
1 .. 50.7MBd 16-APSK
1 .. 40.5MBd 32-APSK

RF level                                -70 .. -20dBm ±3dB
MER                                       0 .. 22dB ±2dB
Constellation                        Up to 32-APSK
ASI/SDI outputs                  1x up to 3G-SDI
LNB supply (per channel)     13V/18V 400 mA
Receive-buffer size               2x 8MByte
PCI-Express label                 PCIe1 x4 low profile

PC Support

Processor                             Core i5 minimum
.                                              Core i7 recommended
.                                              Or equivalent AMD CPUs
OS                                          Windows 10, 11
.                                              Windows Server 16, 19, 22
.                                              Linux ≥2.6.18, 3.x, 4.x, 5.x

Ordering Info

All USA orders will be shipped from our USA warehouse. 

All other orders will be shipped from Canada.



DTA-2127  –   Dual-Channel DVB-S/S2 Receiver for PCI Express bus

DTA-2127-SLP   –   Dual-Channel DVB-S/S2 Receiver for PCI Express bus with StreamXpress and StreamXpert Lite

DTA-2127-VR-SLP   –   Dual-Channel DVB-S/S2 Receiver for PCI Express bus with VF-Rec stream recorder, StreamXpress and StreamXpert Lite

DTA-2127-SXP   –    Dual-Channel DVB-S/S2 Receiver for PCI Express bus with StreamXpress and StreamXpert

Software Description

1.  StreamXpress –  Playout  Software

  • Low-cost, high-performance playout software that supports all DekTec output adapters
  • 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

2. StreamXpert – Transport Stream Analyser Software
• Real-time analysis, monitoring and recording of MPEG-2 transport streams
• Recording based on duration, size or manual
• Provides detailed statistics on the PIDs, services and tables found in the transport stream
• Displays PIDs, services, tables, descriptors, stream information and PID-grid (compact overview of all PIDs)
• User definable TR 101 290 templates
• PCR analysis
• Measurement of bitrates, PCR-accuracy and interval
• Integrated SD/HD video and audio decoder with support for MPEG-2, AVC/H.264, HEVC/H.265, AVS, 4:2:2 and 10 bit video streams and MP1 / MP2 / (HE-)AAC / Dolby AC3 / Dolby AC4 audio
• Deep decoding of PSI, DVB-SI, DVB-RCS and ATSC-PSIP tables and descriptors
• Closed captions decoding
• SI decoding with user templates, Dolby AC4 analysis, multi-monitor support
• Support for analysing TS-over-IP streams via a DTA-2160 / DTA-2162 or a local network port
• The world’s most cost-effective and user-friendly transport-stream analyser

3.  StreamXpert Lite – Light-weight version of StreamXpert for viewing and recording transport-stream contents, and for decoding audio and video.

                                                             StreamXpert           StreamXpert Lite

Ribbon based GUI                                        ✓                               ✓
List with properties of all PIDs                      ✓                               –
List with properties of all services                 ✓                               partial
List with properties of all tables                    ✓                                –
Video Decoding
HEVC                                                            ✓                                ✓
AVC                                                               ✓                                ✓
AVS                                                               ✓                                ✓
MPEG-2                                                        ✓                                ✓
4:2:2                                                              ✓                                –
10-bit                                                             ✓                                –
Full screen mode                                          ✓                                ✓
Multi-monitor support                                    ✓                                ✓
Audio Decoding
HE-AAC                                                        ✓                                ✓
AAC                                                              ✓                                ✓
E-AC-3                                                          ✓                                ✓
AC-3                                                             ✓                                 ✓
MPEG-1 Layer II                                           ✓                                ✓
Supported Interfaces
DekTec input adapters                                   ✓                                 ✓
PC network ports                                           ✓                                 ✓
Custom table and descriptor templates         ✓                                  –
PID Grid, graphical overview of all PIDs        ✓                                  –
Dolby AC-4 analysis                                       ✓                                  –
Manual mode                                                ✓                                  ✓
Size based                                                    ✓                                  ✓
Duration based                                              ✓                                  ✓
Measurement and Compliance
TR 101 290 priority 1, 2 and 3                      ✓                                  –
Bitrate                                                           ✓                                  partial
PCR graphs                                                  ✓                                  –
PCR accuracy                                               ✓                                  –
PCR interval                                                  ✓                                  –
PCR frequency offset                                    ✓                                  –

4.  VF-Rec – Advanced transport-stream/SDI recorder
• Advanced recorder for TS, ETI, SDI, I/Q samples and T2MI.
• Allows to do continuous recording and remote control through SNMP
• Record to a single file, to multiple files or continuous
• SDI recording 10-bit full frame, up to 3G-SDI
• Remote monitoring and control through SNMP

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