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Frequency Counter Products

Keysight is the #1 Frequency Counter vendor in the world
Why? Because we offer a wide variety of time and frequency measurements with exceptional performance and reliability.

Introducing the new 350 MHz 53200 Series RF & Universal Frequency Counters/Timers
Speed, resolution & accuracy are just the beginning... See product links below for details. 

Compare All Frequency Counter Products (13)

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5345A Data Sheet

Data Sheet 2001-05-14

5335A Data Sheet

Data Sheet 2001-05-14

5370B Data Sheet

Data Sheet 2001-04-11

8 Hints for Making Better RF Counter Measurements
This Brochure focuses on making better RF counter measurements by understanding the effects of counter architecture; recognizing the difference between resolution and accuracy, and scheduling calibration to match performance needs. In addition, the impact of timebase options is discussed along...

Application Note 2001-04-10

53149A Standard Shipped Components
Listing of items shipped with a standard 53149A product.

Reference Guide 2001-03-12

Examine GMSK Modulation in GSM and PCN Mobile Communications Systems (AN 1200-11)
Current analog mobile communications systems have reached capacity limits in several large population centers. Future systems will utilize Time Division Multiple Access techniques to increase capacity. These new digital modulation techniques are difficult to characterize using conventional test...

Application Note 2000-09-01

Fast Characterization of Pulse-Width Encoded Data (AN 1200-5)
The built in fast histogram capability of the Keysight 53310A is a simple and easy way to analyze pulse width encoded data. In less than a second, it takes a hundred thousand pulse width measurements, rearranges the measurements in value order, then displays how often a given value occurred.

Application Note 2000-08-01

Examine Channel Switching Characteristics of Cellular Radios (AN 1200-10)
The Keysight 53310A's ability to measure and display a signal's continuous frequency over time makes cellular communications channel switching analysis easy. A direct frequency profile of channel switching is provided on an easy-to-interpret display. Measurement markers allow you to quickly verify...

Application Note 2000-08-01

Peak Deviation and Center Frequency Measurements for CT2 and DECT Radios (AN 1200-12)
The use of digital modulation in mobile communications systems is growing rapidly. Information in the form of 1s and 0s is often transmitted as two different frequencies. This is known as minimum shift keying or GMSK if the data is filtered. Measuring the deviation accurately on a bursted signal...

Application Note 2000-08-01

Simplified Analysis of Phase-Locked Loop Capture and Tracking Range (AN 1200-7)
The Keysight 53310A's ability to measure and display a signal's continuous frequency over time makes dynamic frequency analysis of PLLs easy. A direct measure of the PLL's capture and tracking range is obtained by monitoring the output frequency while the PLL is forced to go in and out of lock. A...

Application Note 2000-08-01

VCO Step Response Analysis Made Easy (AN 1200-3)
The Keysight 53310A allows for an easy-to-use single pass technique for displaying the VCO's output frequency versus time. It makes rapid, high resolution frequency measurements in a back-to-back manner. This yields a full analysis of a VCO's step response in a single pass. For applications that...

Application Note 2000-08-01

Histograms Simplify Analysis of Random Jitter (AN 1200-9)
The Keysight 53310A's fast histograms make it easy to get complete view of clock jitter. The shape of the histogram indicates the nature of the jitter. For example a Gaussian-shaped distribution would suggest the jitter is random. Statistics are calculated automatically to provide the mean...

Application Note 2000-08-01

53310A Data Sheet (136 KB)

Data Sheet 2000-08-01

Single Shot Frequency Profiling of Chirped Radars Made Easy (AN 1200-8)
This Application Note describes the Keysight 53310A's ability to measure and display a signal's continuous frequency over time makes dynamic frequency analysis of radar pulses easy. Views of single-shot chirp linearity are obtained by measuring the continuous frequency of the IF chirp. The chirp...

Application Note 2000-08-01

Simplified Motor Spin-up Analysis (AN 1200-1)
This Application Brief offers the Keysight 53310A Modulation Domain Analyzer as a solution to the problem of characterizing a motor's performance without the need for external controller.

Application Note 2000-08-01

Quick Identification of Periodic Jitter Sources (AN 1200-4)
The Keysight 53310A is an easy-to-use, inexpensive tool for displaying time interval measurements versus time. Any repetitive pattern in the jitter is immediately apparent. The 53310A's analysis features readily give peak-to-peak and periodic rate information. Taking all of these clues together...

Application Note 2000-08-01

Direct Characterization of Motion Control Systems (AN 1200-2)
This Application Brief is one of a series. It demonstrates how the Keysight 53310A makes it easy to capture and view velocity profiles, without the need for an external controller.

Application Note 2000-08-01

Automatic Frequency Settling time Measurement Speeds Time-to-Market for RF Designs (AN 1275)
This Application Note addresses considerations for the RF designer. It presents the Keysight 53310A with Option 031, which was developed specifically for digital RF communications measurement needs, offering significant advantages over past techniques.

Application Note 2000-07-01

53131A/132A Universal Counter Operating Guide
53131-90055; Contains a quick reference guide, getting started guide, front panel operation, and specifications.

User Manual 1999-10-01

4 Hints for Making Better Microwave Counter Measurements
This Product Note provides four pertinent hints for making better microwave counter measurements, describes the advantages of using a microwave counter, and deals with the unique measurement problems created by the advancement in counter technology.

Application Note 1998-09-01

5334B Brochure

Brochure 1998-05-01

E1725C/E1740A Time Interval Analyzer - Getting Started Guide
Part Number: E1725-90012 (Apr98). The E1725C is a discontinued product; this manual is provided for information only.

Quick Start Guide 1998-04-01

E1725C/E1741A Time Interval Analyzer - Getting Started Guide
Part Number: E1725-90011 (Apr98). The E1725C is a discontinued product; this manual is provided for information only.

Quick Start Guide 1998-04-01

E1747A Timing Pattern Analysis Software User Guide
Part Number: E1725-90013 (Apr98). The E1747A is a discontinued product; this manual is provided for information only.

User Manual 1998-04-01

Fundamentals of Microwave Frequency Counters (AN 200-1)
This somewhat lengthy, classic Application Note addresses the microwave counter designer's need for down-conversion techniques. It describes and compares techniques and outlines additional considerations in choosing a microwave counter. Includes some applications of the Keysight 5342A.

Application Note 1997-05-01


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