DVB-T Receiver USB Probe - CLOSE OUT


  • $1,750.00


The DTU-235 provides a portable field solution to tune QPSK or QAM COFDM frequencies directly on your laptop for easy field testing or recording. Combine the DTU-235 with RFXpert for a comprehensive and economical MPEG2 analysis solution.

  • Light-weight, easy-to-use RF adapter for tuning to any UHF/VHF channel in the 50 to 860 MHz range
  • Record MPEG2 Transport Stream directly to a laptop PC for easy field recording
  • Full portability that requires no additional power supply or batteries, the DTU-235 operates entirely from a USB-2 connection
  • Sensitive front-end allowing reception of RF signals from -25 to +50 dBmV
The DTU-235 can be combined with Sencore's RFXpert software for a truly powerful RF measurement tool. RFXpert provides easy-to-read spectral displays, both constellation and eye diagram displays.
  • True demodulated digital reading for MER, Pre-BER, Post BER and EVM
  • A proof-positive method of signal documentation or drop-point comparisons with programmable, user defined logging and auto-inspection capabilities.

Adding StreamXpert to a DTU-235 makes for a cost-effective and user-friendly MPEG2/H.264 transport stream analyzer. RF inputs of the DTU-235 and can be validated against industry standard ETR101-290 templates. Transport streams can also be captured in the field with StreamXpert for later use.

  • Real-time analysis, monitoring and recording of MPEG2/H.264
  • PCR Accuracy and ETR101-290 checking
  • Integrated MPEG2 video and audio decoding with AC3 and Dolby Digital+ Support


Connector: 75 Ω type “Fâ€ù female
Frequency: 50-860 MHz
Level: -25 to +50 dBmV
Resolution: 0.1 dB
Accuracy: +/- 1 dB (+/- 0.5 dB typical)
Modulation: QPSK, QAM-16, QAM-64 COFDM type
Modulation Type: COFDM
Constellation: QPSK, QAM-16, QAM-64
FFT: 2k, 8k
Code Rate: 1/2, 2/3, 3/4, 5/6, 7/8
Guard Interval: 1/4, 1/8, 1/16, 1/32
Base Channel Plans: Australia, China, East Europe, Indonesia, Ireland, Japan, New Zealand, South Africa, United States, West Europe
Spectrum Display: 6Mhz Channel, 18Mhz adjacent, 50-860Mhz Full

USB Connection
Connector: USB 2.0 “Bâ€ù female
Power: Provided thru USB connection of host PC
Voltage: +5 VDC
Current Draw: < 450 mA

Source: USB 2.0 port of host PC
Voltage: +5 VDC
Current: >500mA*
*dual USB connections to PC

Physical: 7.1â€ù x 4.2â€ù x 1.4â€ù
Weight: < 1 lb.
Construction: aluminum case


Level Measurement: >-30 to +60 dBmV, 0.1 dB resolution, +/- 1 dB accuracy
MER: 15 to 38 dB (measured from constellation)
EVM: 2.3 to 16.5% RMS
BER: Pre/Post FEC, SER, Errored Seconds
Modulation Displays: Constellation and Eye diagram
Echo Profile: -2.3 to +40 Î_S delay range, 0 to -30 dBc echo level
Spectrum Display: Channel (6-8 MHz), Adjacent (18-24 MHz), Full (44-865 MHz)

Type: Interval and Alarms
Auto Inspect: Automatic analysis and logging of a channel plan
File: User-defined, limited by host hard drive space

Operating System: 32/64-bit Windows XP or newer
USB: 2.0 for communication/power
Processor: Pentium 4 1.0GHz
RAM: 256 MB minimum


214 Mb/s maximum

Operating System: 32/64-bit Windows XP, all versions
DirectX: 9.0c or higher
Video Card: AGP 64 MB equivalent or better (SD video decoding); 1 GB for HD H.246
Sound Card: Standard sound card (for audio decoding)
Processor: PIII 1.0 GHz (no video decoding) P4 1.7 GHz / Pentium M 1.5 GHz (SD Decoding) P4 3.0 GHz / Pentium M 2.0 GHz
(HD Decoding)*
* Hyper threading CPU yields best results*
**Or equivalent AMD processor**

RAM: 256 MB minimum - Best results (HD) with 512 MB+ dual channel DDR400
Disk Drive: Rates > 40 Mb/s use drive separate\ (For Stream Recording) from Operating System Rates â‰_ 100 Mb/s use single 7200 RPM SATA or SCSI Rates > 100 Mb/s use single 15000 RPM SCSI, Striped 7200 RPMS ATA, or Striped SCSI*
*Best performance is achieved using Striped SATA or SCSI Drives*

Note1: Parallel ATA Drives may be used, but usually do not achieve same performance as SATA or SCSI.
Note2: Drive specifications are recommendations. Different architectures will yield different results in some systems. When in doubt, refer to drive/motherboard specifications or contact a Sencore representative.