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Test & Measurement

Frequency Analyzers/Counters


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New frequency counting principle improves resolution (article)
This paper describes the theory and design of the CNT-90 family of frequency counters, and analyses the improvements in the latest generation of frequency counters.


Pendulum Instruments are well-known as industry-leading time and frequency counters and frequency analyzers. The products are characterized by ultra-high speed and resolution with advanced graphics, zero dead-time, Allan deviation measurement, modulation domain analysis and overall the highest-performance frequency measuring instruments. Various models offer portability with battery-option and range up to 60 GHz. Other products include a software package to turn any CNT model counter into a complete frequency analyzer in the time-domain and a pico-second resolution test set for precise oscillator characterization.


CNT-90 Frequency Timer/Counter/Analyzer

The CNT-90 Frequency Timer/Counter/Analyzer offers ultimate control of measurement for all needs and budgets. The CNT-90 is a high-performance frequency counter with a fast measurement speed to 250,000 measurements/sec, and time interval measurement resolution to 100 ps.

Pulsed RF Microwave Counter/Analyzer

The CNT-90XL Microwave Frequency Counter/Analyzer is ideal for installation and maintenance of point to point microwave links, satellite communication equipment testing, YIG and VCO testing, and RF & Microwave instrumentation calibration, testing or research. Works with CW signals with an option to measure pulsed signals.


CNT-91 Frequency Timer/Counter/Analyzer
CNT-91R Frequency Calibrator/Analyzer

The CNT-91 Frequency Counter/Timer/Analyzer is the highest performance counter for measurement, analysis and calibration of frequency, time interval and phase. The CNT-91 is very suitable for production test systems, for R&D, in calibration labs, or in the field. The CNT-91R Frequency Calibrator/Analyzer is basically a combination of the high resolution CNT-91 and a Rubidium Frequency Standard, all in one box.

Modulation Domain Analyzer SW

Analyze dynamic signal variation of time or frequency with TimeView Modulation Domain Analyzer software for increased advanced statistical analysis including statistical distribution, FFT analysis & smoothing. TimeView is available in two different versions. TimeView 2 works with any CNT-9x counter. Tthe enhanced version, TimeView 3, requires models CNT-91 or CNT-91R.