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Pendulum CNT-90XL User Manual

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Timer/Counter/Analyzer
CNT-90, CNT-91
Frequency Calibrator/Analyzer
CNT-91R
Microwave Counter/Analyzer
CNT-90XL
User's Manual

Table of Contents

Other manuals for Pendulum CNT-90XL

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Pendulum CNT-90XL Specifications

General IconGeneral
Frequency Resolution12 digits/s
Time Interval Resolution100 ps
Input Channels2
Resolution12 digits/s
Weight3.5 kg
Power Supply100-240 VAC, 50-60 Hz

Summary

1 Preparation for Use

Safety

Introduces safety precautions and guidelines for instrument use.

2 Using the Controls

3 Input Signal Conditioning

How to Reduce or Ignore Noise and Interference

Tips for reducing noise and interference.

How to use Trigger Level Setting

Explains optimal trigger level settings for measurements.

4 Measuring Functions

Frequency measurements

Details various frequency measurement types.

FREQ C

Explains frequency measurement for Input C with prescalers.

Frequency Modulated Signals

Details measuring frequency modulated signals.

AM Signals

Explains how to measure AM signals.

Modulating Frequency

Provides methods for measuring modulating frequency.

Time Measurements

Covers various time measurement functions.

Time Interval

Details time interval measurement functions.

Rise/Fall Time A/B

Measures rise and fall times on inputs A and B.

Pulse Width A/B

Specifications for pulse width measurements.

Duty Factor A/B

Specifications for duty factor measurements.

Measurement Errors

Discusses errors related to hysteresis and overdrive.

5 Measurement Control

Measurement Time

Explains the Measurement Time parameter.

Arming

Defines arming and its purpose in measurement control.

Start Arming

Describes Start Arming behavior and options.

Stop Arming

Describes Stop Arming function.

Controlling Measurement Timing

Details the overall measurement process and timing.

What is Arming?

Defines arming as a pretrigger condition.

When Do I Use Start Arming?

Discusses applications for Start Arming.

When Do I Use Stop Arming?

Discusses applications for Stop Arming.

When Do I Use Arming With Delay?

Delaying start arming point with respect to the arming signal.

Arming Examples

Provides examples of arming configurations.

#2 Measuring the Second Burst Pulse

Example 2: Measuring the second pulse in a burst.

#3 Measuring the Time Between Burst Pulse #1 and #4

Example 3: Measuring time between pulses.

#4 Profiling

Example 4: Profiling (measuring frequency vs. time).

6 Process

Mathematics

Details the mathematical expressions for result processing.

Statistics

Explains the applicability and functions of statistics.

Determining Long or Short Time Instability

Guides on selecting measurement time for instability analysis.

Limits

Describes the Limits Mode for alarm monitoring.

7 Performance Check

Test Equipment

Lists required test equipment and specifications.

Front Panel Controls

Details on front panel controls and self-tests.

Short Form Specification Test

Verifies sensitivity and frequency range performance.

Voltage

Tests voltage measurement accuracy.

Reference Oscillators

Performs acceptance tests for oscillators.

Performance check procedure of option 28 Pulsed RF

Procedure for checking the Pulsed RF option.

Frequency in Pulse: Sensitivity

Tests sensitivity for frequency measurements.

Frequency in Pulse: Accuracy without short-pulse compensation

Tests frequency accuracy without short-pulse compensation.

Frequency in Pulse: Accuracy with short-pulse compensation

Tests frequency accuracy with short-pulse compensation.

Pulse width measurements

Details the procedure for pulse width measurements.

PRI measurements

Details the procedure for PRI measurements.

8 Specifications

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