What Happens if I Extend a Passive Probe Using BNC/Coax?

This method will not work as the signal waveform would be very distorted. The coax acts as a heavy shunt-capacitance at the 'output' jack of the passive probe circuit. As a result, this excessive shunt-capacitance attenuates the high frequency components of the waveform excessively. Please see the attachment file for an example of this effect.

Related Products & Solutions

Data Acquisition (DAQ)

Yokogawa data acquisition systems give you the most flexibility and power to measure, display, store, and even actuate any number of physical or electrical phenomena.

High Speed Data Acquisition

  • Yokogawa high-speed data acquisition systems
  • Industry-leading isolation, bit resolution, sampling rate, and memory depth
  • Independent channel hardware and easy to use software


  • Digital oscilloscopes
  • High-speed sampling
  • Range of bandwidths for electronic device design and development
  • Advantages of oscilloscope and multi-channel data recorder


  • Flexible, high-performance Yokogawa ScopeCorder
  • Modular platform combines mixed signal oscilloscope and portable data acquisition recorder 
  • Captures high-speed transients and low-speed trends