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Frequency Counter Products

Keysight is the #1 Frequency Counter vendor in the world

Why? Because Keysight offers a wide variety of time and frequency measurements with exceptional performance and reliability. Keysight's frequency counter product family includes RF, Universal, and Microwave Frequency counter products, Time-To-Digital Converters.

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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Declaration of Conformity
Search Keysight Regulatory database for the most recent Declaration of Conformity statement for your product.

Reference Guide 2014-08-01

53147A, 53148A, 53149A Microwave - Quick Fact Sheet
This 2-page quick fact sheet outlines the key features and specifications for Keysight's 53140 series microwave frequency counters.

Brochure 2012-12-01

53140A Series Technical Overview
Description and technical specifications for the Keysight 53147A, 53148A, and 53149A microwave counters.

Technical Overview 2011-10-20

Frequency counter selection guide

Selection Guide 2010-05-04

10 Hints for Getting the Most from your Frequency Counter
Maximize the results you get from your frequency counter through 10 hints from better from understanding the architecture to making faster measurements.

Application Note 2008-04-18

4 Steps for Making Better Power Measurements (AN 64-4D) - Application Note
Before selecting a power meter and associated sensors, make sure that you have taken the 4 steps detailed in this note, which influence the accuracy, economy and technical match to your application.

Application Note 2006-04-26

Frequency Counter Video Overview
A 5 minute video demo of Keysight's frequency counters.

Demo 2004-11-01

Tips for making more accurate measurements with a frequency counter
Six tips for making accurate frequency measurements.

Application Note 2004-07-30

53147A Standard Shipped Components
Listing of items shipped with a standard 53147A product.

Reference Guide 2003-11-20

53147A/148A/149A Service Guide
This guide describes how to service the Keysight Technologies 53147A, 53148A, and 53149A.

User Manual 2002-05-31

53147A/148A/149A Operating and Programming Guide
This guide describes how to use and program the Keysight 53147A, 53148A, and 53149A.

Programming and Syntax Guide 2002-05-31

53148A Standard Shipped Components
Listing of items shipped with a standard 53148A product.

Reference Guide 2002-03-12

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

Reference Guide 2001-03-12

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

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