Handheld TDR

PCI-3160r Handheld
Our handheld PCI-3160R TDR is the replacement for the Tektronix® 1502C and 1503C TDR instruments.

The handheld Time Domain Reflectometer (TDR) consists of CM Technologies’ PCI-3127 high-performance metallic TDR card packaged in a rugged handheld computer form factor. The software interface uses an easy to follow menu structure to assist in acquiring, saving and interpreting TDR signatures – extremely flexible when compared to traditional instrumentation.

Current for 2014: Model PCI-3160R (PDF Spec Sheet)


Our latest handheld PCI-3170R TDR is a psuedo real-time replacement for the Tektronix® 1502C and 1503C TDR instruments.

Scheduled for 2015: Model PCI-3170R (PDF Spec Sheet)


  • Troubleshooting cable and wiring systems:
    • Distance to wiring faults
    • Cable propagation velocity
    • Cable return loss in dB
    • Cable fault analysis
  • Geotechnical (soil moisture, monitoring earth movement, groundwater detection)
  • Identify and locate open circuits, short circuits, areas of damaged insulation, moisture intrusion, resistive connections
  • Faulty taps and un-terminated line in LAN and CATV networks

Measurement Overview

  • Step pulse, variable amplitude (1-5 volts into 50 ohms), variable pulse width (automatically selected with range)
  • Output Impedance: 50 ohm
  • Connection: BNC
  • Range: up to 60,000 feet in 8 selectable ranges with 4,096 data points (see spec sheet for details)
  • Digital Resolution: 1024 vertical values (10 bit A/D)


  • 4-inch sunlight readable, touch sensitive transflective TFT liquid crystal display
  • Sealed magnesium case
  • Windows Mobile 5 operating system
  • 625 MHz processor (Intel Bulverde PXA270)
  • 128 MB RAM; 128 MB Compact Flash for operating system

Software Includes PDA and PC Versions

PCI-3160R SoftwarePDA Software
  • Acquires data; saves signatures (auto-naming or user selectable)
  • Superimpose up to four stored signatures
  • Built-in cable library stores velocity and characteristic impedance
  • Single cursor to read distance, point impedance, and return loss (dBRL)
  • TDR signatures are saved using in a pseudo-XML format and are self-documenting. Information such as test date, test time, and user comments are stored to capture all test critical parameters.
  • Stored signatures transferred to another PC using Bluetooth or wireless 802.11B LAN
PC Software
  • Superimpose up to eight stored waveforms
  • Two cursors to read distance, impedance, and return loss (dBRL)
  • Zoom and pan functions
  • Built-in cable library stores velocity and characteristic impedance
  • Print hardcopies of waveforms

Physical and Environmental

  • Weighs under 2 lbs; about the size of a handheld multimeter
  • Internal battery provides over 6 hours of continuous operation
  • Operating temperature -4°F to +140°F
  • Storage temperature -60°F to +160°F
  • CE Mark, IP65 (Dustproof; Splashproof)
  • Certified to MIL-STD-810F (environmental)
  • Certified to MIL-STD-461E (EMI)


  • Avionics
  • Telephony
  • Computer/LAN
  • CATV
  • Power Companies
  • Agriculture
  • PCB Manufacturers
  • Cable Manufacturers
  • Aging Aircraft
  • Geotechnical
  • Shuttle Mission
  • Rail Lines
  • Automotive
  • Offshore Drilling