CNT-85R - Pendulum Instruments Frequency Counters

CNT-85R Spec Sheet

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Technical Specifications

Max. Freq.

Freq. Resolution [Digits]

Frequency, Period, Count totalization, Time interval, Duty factor, Pulse width, Freq. range, Burst freq.

Extra Specifications
Frequency Counter/Calibrator

Product Description

With the CNT-85 and CNT-85R frequency counters and calibrators, Pendulum offers the ultimate tools for stationary as well as portable calibration of frequency, from DC to over 8 GHz. These counters are designed for on-site calibration of the master clock in GSM base stations, offering a TUR of >50 over a 10 year period. They also fit on the R&D bench, in the calibration lab or in manufacturing test systems where fast and accurate frequency measurements are needed. Choose between the economy model CNT-85 and the ultimate CNT-85R including a built-in Rubidium time-base reference.

The CNT-85R from Pendulum is the most accurate portable frequency calibrator on the market. It offers all the functionality of the CNT-85, plus the stability and accuracy of a built-in Rubidium atomic reference. This instrument is ideal for high-accuracy frequency calibration, inside as well as outside the cal lab environment, such as in digital communication systems. The short warm-up time means that the CNT-85R is instantly ready for use after a change of location.

  • High resolution: 10 digits in 1s
  • Low uncertainty: 0.0001 ppm (Rb)
  • Short warm-up time: 10 min. to 4x10-10
  • Wide frequency range to 8 GHz
  • Smartest input trigger system
  • Measures any type of input signal, incl. bursts, AM, FM and noisy signals
  • Displays also input signal strength
  • Excellent EMC-immunity
  • Easy to use
  • Ideal for on-site frequency calibration of the master clock in GSM base stations