Portable RF analysis and monitoring
      Additional ASI Transport-Stream input
      No power supply or batteries required

  • Description
  • Specifications
  • Ordering Info



  •   Portable, easy-to-use unit for RF analysis and monitoring of terrestrial (DVB-T2/T, ISDB-T) and cable (DVB-C2/C) signals
  •   Tunes to UHF/VHF or cable channels in the 42 to 1002MHz range
  •   Extra DVB-ASI input for real-time analysis of baseband Transport Streams
  •   Supports DVB-T2 lite
  •   Capture TS signals directly to file on a laptop PC for easy field recording
  •   Ruggedized portable unit that requires no additional power supply or batteries, the unit operates entirely    from a USB-2 connection
  •   Sensitive front-end allowing reception of RF signals from -30 to +50dBmV
  •   Combine the DTU-238 with RFXpert software for a powerful RF measurement tool than can be used in the field or in the lab
  •   Combine the DTU-238 with StreamXpert software for real-time Transport Stream analysis,
  •   Channel plans for world-wide regions

DTU-238 Applications

  • Network monitoring, using this universal receiver, of DVB-T2, DVB-C2 or ISDB-T networks
  • As a test-receiver for DVB-T2, DVB-C2 or ISDB-T
  • Re-multiplexing of DVB-C, DVB-T, DVB-C2, DVB-T2 or ISDB-t streams with MuxXpert


  •   RF Level,  MER,  EVM
  •   BER : Pre/Post FEC,  SER (Severe Errored), Errored Seconds
  •   Constellation and Eye Diagram
  •   Channel, Adjacent and Full Spectrum


RF Input
Connector                                  75-Ω “F” female
Frequency range                       VHF, UHF:   45 .. 1002MHz
Bandwidth                                   1.7/5/6/7/8MHz
Level measurement                    -30 .. +50dBmV
MER range                                  15 .. 38dB

ASI  input
Connector               75-Ω BNC
Standard                  EN50083-9
Bit rate                  .. 100Mbit/s

Modulation Standards         DVB-C, DVB-C2, DVB-T, DVB-T2, ISDB-T

Dimensions in mm (LxWxH)     180x107x36

Weight                                        < 500g

Ordering Info

All USA order will be shipped from our USA warehouse. 

All other orders will be shipped from Canada. 

DTU-238  –    DVB-T2/T/C, ISDB-T and ASI Probe

DTU-238-RX  –    DVB-T2/T/C, ISDB-T and ASI Probe with RFXpert software

DTU-238-SX  –    DVB-T2/T/C, ISDB-T and ASI Probe with StreamXpert software

DTU-238-RSX  –    DVB-T2/T/C, ISDB-T and ASI Probe with RFXpert and StreamXpert

Software Description

  1. 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

2.        RFXpert –  RF Monitoring and Analysis Software

  • Real-time analysis and monitoring of modulated digital TV signals using DTU-235 (for DVB-T) or DTU-236 (for 8-VSB and QAM-A/B/C) RF probe
  • Main window displays overview of current RF status, monitor status and RF level and MER histograms
  • Master alarm indicators for a quick check of signal integrity
  • Alarm logging with configurable pass/warn/fail thresholds
  • Client-server architecture: RFXpert can connect to the RF probe over a network
  • Supports creation of a channel plan for easy tuning; Standard channel plans and auto-channel search are provided
  • Run RFXpert and StreamXpert for parallel RF and transport-stream analysis

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