HP E4446A, E4448A, E4440A, E4445A Running Internal Alignments, Manually Performing an Alignment

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Installation and Setup

Running Internal Alignments

Each time the analyzer is powered on, the internal alignment routine runs automatically.

The analyzer was shipped from the factory with the Alignments mode set to Auto. This setting enables the alignment routine to run automatically either every 24 hours, or when the internal analyzer temperature changes ± 3° C.

NOTE	When the Alignment routine runs, you will hear the attenuator settings
	changing, which generates noise. This is not an indication of trouble.

Manually Performing an Alignment

If Auto Align, Off is selected, refer to the Specifications guide for the conditions required to maintain calibration.

NOTE	For detailed information regarding the alignment routine (including how to
	run alignments, and how the analyzer can alert you when alignments are
	required) refer to the User’s guide for your analyzer.

Chapter 1

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Contents Getting Started Guide Additional Information Contents Case of Difficulty Installation and Setup Agilent Technologies Performance Spectrum Analyzer PSA Accessories Initial InspectionDescription Standard Documentation SetIf There Is a Problem Power Requirements AC Power Cord Description SpecificationsAC Power Cords Battery Information Turning on the Analyzer for the First Time Information ScreenWhy Aren’t All the Personality Options Loaded in Memory? Using an External ReferenceFirmware Revision TIPRunning Internal Alignments Manually Performing an AlignmentEquipment Printer Setup and OperationPrinter Models Interconnection and Setup Testing Printer OperationTest Equipment and ESD Protecting Against Electrostatic DischargeAdditional Information about ESD Safety Information Front and Rear Panel Features Front Panel Overview Front-Panel Connectors and KeysName Description Name Display Annotations Description Associated Function KeysTrigger & sweep modes Trace modes Phase noise optimizationa Rear-Panel Features Always turn off power before plugging in keyboard Key Overview Key Overview Front and Rear Panel Symbols Front and Rear Panel Symbols Making a Basic Measurement Basic Assumption Using the Front Panel Using Menu KeysEntering Data Knob Arrow Keys Numeric Keypad Unit Softkeys Enter KeyCreating a User Preset Presetting the Spectrum AnalyzerDisabling User Preset Viewing a Signal Setting Reference Level and Center Frequency10 MHz Internal Reference Signal and Associated Spectrum Setting Frequency SpanReading Frequency & Amplitude Changing Reference LevelA Marker on the 10 MHz Peak Improving Frequency Accuracy Valid Marker Count RangeIncreasing Marker Frequency Accuracy Viewing Catalogs and Saving Files Viewing Catalogs and Saving Files File Menu Functions Locating and viewing files in the catalogCatalog Menu Creating a directory Set up the analyzer trace Saving a FileViewing Traces 1 Save the file Viewing Traces 1, 2,Saving a File Loading a file File LoadedVerifying Trace Renaming a File Renaming a FileCopying a File Put a formatted floppy in the a driveDeleting a File Using the Alpha Editor Using the Alpha Editor Options and Accessories Accessories see Ordering Options and AccessoriesOptions see Options Option Name Description Number124 ANE BAB Name Description UK6Accessories USB/GPIB Cable Gpib CableHP/Agilent 11970 Series Harmonic Mixers HP/Agilent 11974 Series Preselected Millimeter Mixers Static Safe AccessoriesRF and Transient Limiters Case of Difficulty Personnel. To prevent electrical shock, do not remove covers Types of Spectrum Analyzer Messages Types of MessagesBefore Calling Agilent Technologies Check the BasicsReference, 10 MHz to select On Service Options Read the WarrantyCalling Agilent Technologies Canada Japan Asia Pacific United States Latin America New ZealandEurope Australia Returning an Analyzer for Service Service TagOriginal Packaging Other PackagingReturning an Analyzer for Service Returning an Analyzer for Service Index NumericsIndex-80

E4443A, E4448A, E4445A, E4446A, E4440A specifications

The HP E4440A, E4446A, E4445A, E4448A, and E4443A are high-performance spectrum analyzers designed to meet the testing and measurement needs of engineers and technicians in various industries. These models offer a combination of advanced technologies and features that enhance their functionality and usability.

Starting with the HP E4440A, this spectrum analyzer is well-known for its wide frequency range and excellent resolution bandwidth, making it ideal for characterizing RF signals. It is capable of analyzing signals from 9 kHz up to 1.5 GHz, providing a comprehensive tool for capturing a wide spectrum of frequencies. The E4440A features a sophisticated built-in signal analysis capability, including demodulation and specialized measurement functions that assist in the evaluation of complex signals.

The E4446A elevates performance further with a frequency range extending up to 6 GHz. This model includes advanced phase noise measurement capabilities, which are crucial for testing communication systems and ensuring signal integrity. Its large color display coupled with a user-friendly interface allows for easy navigation through various measurement settings.

For deeper insights into signal behavior, the HP E4445A stands out with its ability to perform real-time spectrum analysis. This feature allows engineers to capture transient signals and analyze them effectively, which is essential in modern RF design and troubleshooting. The E4445A also supports a range of modulation analysis tools enabling comprehensive testing of communication systems.

Meanwhile, the E4448A is recognized for its high dynamic range and low noise floor. These characteristics are essential for analyzing weak signals in the presence of stronger ones. Its enhanced sensitivity allows engineers to detect signals buried in noise, which is vital for applications such as spectrum monitoring and interference analysis.

Finally, the HP E4443A is tailored for more specialized applications, featuring a frequency range up to 3 GHz. It incorporates advanced digital signal processing techniques that facilitate accurate measurements even in challenging environments. Its portability and robust design make it a preferred choice for field applications, allowing users to perform spectrum analysis where needed.

In summary, the HP E4440A, E4446A, E4445A, E4448A, and E4443A spectrum analyzers offer a rich set of features and technologies that cater to the evolving demands of RF engineers. With their superior performance characteristics, they serve as invaluable tools across a variety of testing and measurement applications in the telecommunications and electronics sectors.