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Agilent Technologies 53150A, 53152A, 53151A Measuring Relative Frequency, Operating the Counter

Models: 53151A 53150A 53152A

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Chapter 1 Getting Started

Operating the Counter

Measuring Relative Frequency

You can measure the difference in frequency from one measurement to another (drift) using the Relative Frequency function. You do this by pressing the Shift and Rel Freq (Offset On/Off) keys as shown in the diagram below (this example assumes that a signal is currently applied to Channel 1).

The Counter stores the current frequency reading when you press the Rel Freq key. It then subtracts this value from all subsequent readings and displays the difference until you press the Rel Freq key again.

Ch 1

Freq

	Ch	1
Shift	Freq
Shift
		Shift
Rel Freq	Ch	1
	Ch	1
Offset	Rel Freq
On/Off

NOTE	If the input signal fluctuates, the value displayed varies as the Counter
	continues to take measurements. You can vary the speed at which
	measurements are taken by varying the settings for Rate and Resolution
	(see “Setting the Measurement Rate” and “Setting the Resolution” on
	pages 1-32 and 1-34).

Operating Guide

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Agilent Technologies 53150A, 53152A, 53151A manual Measuring Relative Frequency, Operating the Counter

Contents

Agilent 53150A/151A/152A Microwave Frequency Counter Operating GuideWarranty Certification and Warranty CertificationFor detailed warranty information, see back matter Safety Considerations GeneralContents Getting Started2 Operating Your Frequency Counter A Rack Mounting the Counter 3 SpecificationsMessages C Using the Battery OptionIn This Guide In This Guide Contents and OrganizationIndex In This Guide Related Documents200 Application Notes Standard Repair Services Worldwide Types of Service Available if Instrument FailsExpress Repair/Performance Calibration Service USA Only Repair Instrument YourselfAgilent suggests that you always insure shipments Repackaging for ShipmentIn This Guide In This Guide Description of the Microwave Frequency CounterHardware OptionsSupport RetrofitAccessories Supplied Accessories Supplied and AvailableAccessories Available Agilent 53150A/151A/152A Assembly-Level Service Guide Agilent P/NQuick Agilent 53150A/151A/152A Quick Reference GuideReference Quick ReferenceAgilent 53150A/151A/152A Frequency Counter QR-1RATE RATEQuick QR-2Reference Getting Started Chapter 1 Getting Started The Front Panel at a GlanceThe Front Panel at a Glance 20 19 18 17 16 15The Front Panel Indicators at a Glance The Front Panel Indicators at a GlanceThe Front Panel Menus at a Glance The Front Panel Menus at a GlanceChapter 1 Getting Started Operating GuideThe Display Annunciators at a Glance The Display Annunciators at a GlanceChapter 1 Getting Started Rel FreqThe Display Special Characters at a Glance The Display Special Characters at a GlanceThe Rear Panel at a Glance The Rear Panel at a GlanceThe Auxiliary connector is not installed on standard production units Chapter 1 Getting StartedOperating the Counter Operating the CounterPress key one Operating the Counter1-10 Turning the Counter OnPOWER ErrorOperating the Counter Turning the Display Backlight Off or OnClear Navigating in the Menu and Changing Settings Using the MenuDisplaying the Menu Operating the CounterShift Menu Operating the CounterEnter Operating the Counter When you press the right-arrow key, the flashing annunciator1-15 Setting the Serial Port Baud Rate Menu ExampleReset Local Chapter 1 Getting Started1-16 Selecting the Input ChannelChapter 1 Getting Started Operating the CounterOperating the Counter Measuring FrequencyOperating the Counter 2. Avoid dropping or striking either portion of the connectorOperating the Counter Measuring Relative FrequencyOperating the Counter Offsetting a Frequency MeasurementChapter 1 Getting Started 1-21Operating the Counter Operating GuideDisplay Power Measuring Power Channel 2 OnlyOperating the Counter Operating the Counter Selecting the Unit of Measurement for PowerdBm/W Offsetting a Power Measurement Measuring Relative PowerOperating the Counter Chapter 1 Getting Started 1-25Operating the Counter Operating GuidePower Correction Theory of Operation Using Power CorrectionOperating the Counter Operating the Counter Increasing Profile AccuracyEntering Data Points in a Power-Correction Profile Selecting a Power-Correction ProfileOperating the Counter Reset Local 1-29Chapter 1 Getting Started Operating the CounterChapter 1 Getting Started 1-30Operating the Counter Operating GuideOperating the Counter the measurement display. To remain in the Power Correction menu so you1-32 Setting the Measurement RateChapter 1 Getting Started Operating the CounterOperating the Counter Setting the Number of AveragesEnter Enter Operating the Counter Setting the ResolutionChapter 1 Getting Started 1-35Operating the Counter Operating GuideChapter 1 Getting Started 1-36Operating the Counter Operating GuideOperating Your Frequency Counter Chapter Summary IntroductionIntroduction How this Counter Works for You How this Counter Works for YouSummary of the Measurement Sequence Summary of the Measurement SequenceUsing the Selection Keys Using the Selection KeysSequencing Through the Menu Using the Selection Keys Numeric EntryUsing the Selection Keys Changing StatesPress the up- or down-arrow key to cycle through the available choices Using the Selection KeysUsing the Clear and Reset/Local Keys Using the Clear and Reset/Local KeysAcknowledging Messages Other Function Selection Keys Other Function Selection KeysRelative frequency measurement Rel Freq. Press Shift, and then press the Rel Freq Offset On/Off key to measure the difference in frequency between the current measurement and the measurement taken at the time you pressed the Rel Freq key drift Other Function Selection KeysMain ~ Power switch on the back panel to 1 on 1 Connect the Counter to a power source, and set the2 Press the POWER button on the front panel 3 Connect an input signal to Channelmaximum rated frequency for the instrument, the Counter displays Measuring FrequencySetting the Resolution and Measurement Rate Setting the Resolution and Measurement RateSetting the Resolution 1 Press the Resol key to enter the resolution-setting mode Resolution Setting ExampleSetting the Resolution and Measurement Rate 1 Press the Rate key to enter the rate-setting mode Rate Setting ExampleSetting the Measurement Rate Setting the Resolution and Measurement RateAverages Setting Example Setting the Number of AveragesSetting the Number of Averages 1 Press the Avg key to enter the averages-setting modeNote that the tens and units values are set separately Setting the Number of AveragesIn certain situations, the length of time that the AVERAGING message is displayed can be affected by additional factors. When you are measuring frequency, the current resolution setting, the rate setting, and the quality of the signal all affect the length of time required to make the measurements and complete the average computation Setting the Number of AveragesRelative Frequency Example Measuring Relative FrequencyMeasuring Relative Frequency Offsetting a Frequency Measurement Offsetting a Frequency MeasurementFrequency Offset Example 2 Press the Shift key, and then press the Freq Offset Rate keyoffset-entry display 5 Press the Enter key to confirm the offset value and exit theOffsetting a Frequency Measurement Offsetting a Frequency Measurement 6 Press the Offset On/Off keyRel Freq Power Measurement Example Measuring PowerMeasuring Power 1 Press the Display Power key to enable power measurementMeasuring Power 2 Press the Shift key, and then press the dBm/W Display Power keyRelative Power Example Measuring Relative PowerMeasuring Relative Power Power Offset Example Offsetting a Power MeasurementOffsetting a Power Measurement offset value, and then use the up- and down-arrow keys to adjust in the power-offset display that you need to adjust to enter thethat you can change the value of the flashing digit using the up- and displays HI in the power display when the Power Offset function isOffsetting a Power Measurement 6 Press the Offset On/Off key in the POWER area of the front panelRel Freq Using Power Correction Using Power CorrectionUsing Power Correction Power Correction Theory of OperationIncreasing Profile Accuracy Power Correction ExamplesUsing Power Correction 1 Press the Shift key, and then press the Menu Reset/Local key Power Correction Example Selecting a Correction Profile3 Press the right-arrow key once For this example, choose profile numberUsing Power Correction 5 Press the Enter key to select profile number2 Press the right-arrow key Power Correction Example Editing Data Point ValuesUsing Power Correction 3 To insert values in an empty data point, press the up- and/or down-arrow key repeatedly to cycle through the data points in the selected profile to locate one that contains values of 0.0 for both loss and frequency Using Power Correction6 Use the right-arrow key to move to each of the remaining digits in the frequency setting, and use up- and down-arrow keys to adjust their values, if necessary Using Power Correctionprofile are sorted by frequency and stored in that order. Therefore Using Power CorrectionUsing the Menu Using the MenuDO SELF TEST - Starts the sequence of built-in tests Using the MenuUsing the Menu Navigating in the Menu and Changing SettingsSAVE - Saves a copy of the current user settings in non-volatile memory. Nine sets 0 - 8 can be saved, and set 0 is automatically read on startup. To have the Counter automatically start up with your preferred settings, save these settings in set Using the Menu Reference Oscillator REF OSCDo Self Test Battery Voltage BATT VOLTAGEOperating Hours OP HOURS Model Number, Firmware Version, Serial Number, and Option CodesVVV is the version number of the Counter’s firmware, and XX, YYY, and ZZZZ are other numerical codes that are reserved for Agilent internal use. The flashing annunciators at either end of the first line of the display indicate that you can use the equivalent arrow key to scroll left and/or right to the next field of information Using the MenuTable 2-1. Factory Default Function Settings Preset2-45 Using the MenuSave User Settings SAVE Recall User Settings RECALLPower Correction PWR CORR RS-232 Serial Port Data Rate BAUDSpecifications Introduction Chapter 3 SpecificationsIntroduction Operating GuideChapter 3 Specifications Measurement Specifications and CharacteristicsOperating Guide Acquisition Time 1 MHz FM rateOperating Guide Chapter 3 SpecificationsEmissions “kickback noise” see graphs for typical dataOperating Guide Chapter 3 SpecificationsGraph −10 dBm input level at 25C Graph 0 dBm and −20 dBm inputChapter 3 Specifications Typical* power measurement uncertainty at −25 dBm input levelOperating Guide Graph −25 dBm input level at 25C Graph −25 dBm input level fromAccessories Available Accessories SuppliedTimebase Internal Timebase StabilityOperating Guide Chapter 3 SpecificationsRack Mounting the Counter Rack Mounting the Counter Rack Mounting the CounterAppendix A Rack Mounting the Counter Panel Filler Adapter AssemblyRack Mounting the Counter Rack FlangeRack Mounting the Counter Messages Status Messages OverviewOverview Table 3-1. Status MessagesSelf-Test Messages Self-Test MessagesTable 3-2. Self-Test Messages Appendix B MessagesError Messages Error MessagesTable 3-3. Error Messages Appendix B Messages Error Messages Table B-3. Error Messages continuedOperating Guide MessageAppendix B Messages Error MessagesOperating Guide Using the Battery Option Figure C-1. Battery Charge Level Indicator Battery Charge IndicatorOperating the Counter from the Batteries OverviewOperating the Counter from a DC Power Source Operating the Counter from a DC Power SourceReplacing the Batteries Figure C-2. External DC Power SocketRemoving the Batteries Replacing the BatteriesReplacing the Batteries Installing BatteriesBattery sled Battery chamber3 Battery terminals Figure C-3. Removing and Installing BatteriesReplacing the Batteries Charging the Batteries Charging the BatteriesPrecautions PrecautionsAppendix C Using the Battery Option C-10Precautions Operating GuideIndex SYMBOLSIndex Index-1Index-2 IndexIndex Operating GuideIndex Index-3Index Operating GuideIndex Index-4Index Operating GuideIndex Index-5Index Operating GuideIndex Index-6Index Operating GuideIndex Index-7Index Operating GuideIndex Index-8Index Operating Guideuser setting Index-9Using Power Correction, 2-30 Using the Clear and Reset/Local Keys Using the Menu Using the Selection KeysIndex Index-10Index Operating Guidecalling Service and SupportSafety Considerations cont’d Warranty cont’dElectrostatic Discharge Immunity Testing Continued from front matterManufacturer’s Name DECLARATION OF CONFORMITYManufacturer’s Address 5301 Stevens Creek Blvd Santa Clara, California U.S.ADC.fm Page 2 Monday, July 22, 2002 1051 AM