Agilent Technologies E4440A manual Improving Frequency Accuracy, Valid Marker Count Range

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Making a Basic Measurement

NOTE

NOTE

NOTE

Making a Basic Measurement

Viewing a Signal

Improving Frequency Accuracy

10.While not all of the zeros following the decimal in the active function block are significant, the numbers after the decimal in the marker annotation (upper-right corner of screen) are significant. To increase the accuracy of the frequency reading in the marker annotation, turn on the frequency count function.

a.Press Mkr Fctn.

•The Marker Fctn softkeys appear.

b.Press Marker Count.

•The Marker Count softkeys appear.

Note softkey Marker Count On Off. If Off is underlined, press the softkey to toggle marker count on.

As shown in Figure 3-5and Figure 3-6:

•The marker annotation changes from Mkr1 to Cntr1.

•The displayed resolution in the marker annotation improves.

When you use the frequency count function, if the ratio of the resolution bandwidth to the span is less than 0.002, the following message appears on the display: Freq Count: Reduce Span/RBW ratio

This indicates that the resolution bandwidth is too narrow.

11.Press Marker ➞, Mkr ➞ CF to move the 10 MHz peak to the center of the display.

Valid Marker Count Range

12.Move the marker down the skirt of the 10 MHz peak. Note that although the readout in the active function changes, as long as the marker is at least 26 dB above the noise, the counted value (upper-right corner of display) does not change (see Figure 3-6). For an accurate count, the marker does not have to be at the exact peak.

Marker count functions properly only on CW signals or discrete peaks. For a valid reading, the marker must be ≥26 dB above the noise.

13.Press BW/Avg, Res BW, then enter a new value. This action makes the resolution bandwidth the active function and allows you to experiment with different resolution bandwidth (RBW) values.

14.Press Marker, Off to turn the marker off.

After properly setting the analyzer to display your signal, you can save the settings as either a user preset (press System, Power On/Preset, Save

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Contents Getting Started Guide Additional Information Contents Contents Installation and Setup Agilent Technologies Performance Spectrum Analyzer PSA Description Accessories Initial InspectionIf There Is a Problem Or replacement see Contacting Agilent Technologies onPower Requirements AC Power Cord Power RequirementsAC Power Cords Battery Information Turning on the Analyzer for the First Time Information ScreenWhy Aren’t All the Personality Options Loaded in Memory? If Option 117 is Loaded in MemoryUsing an External Reference Firmware Revision Running Internal Alignments Manually Performing an AlignmentPrinter Setup and Operation EquipmentPCL3 Interconnection and Setup Testing Printer OperationAdditional Information about ESD Protecting Against Electrostatic DischargeTest Equipment and ESD Safety Information Front and Rear Panel Features Front-Panel Connectors and Keys Front Panel OverviewFront Display Annotations FrontTrigger & sweep modes Trace modes Phase noise optimization a Rear-Panel Features PanelFront and Rear Key Overview Front and Rear Panel Features Front and Rear Panel Symbols Do not dispose in domestic household wasteMore information Making a Basic Measurement Viewing a Signal on Basic AssumptionEntering Data Using the Front PanelUsing Menu Keys Attenuation Disabling User Preset Presetting the Spectrum AnalyzerCreating a 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 Using Marker Counter Viewing Catalogs and Saving Viewing Catalogs and Saving Files File Menu Functions Locating and viewing files in the catalogCatalog Menu Creating a directory Viewing Catalogs and Saving Files Set up the analyzer trace Saving a FileViewing Trace Save the file Viewing Traces 1, 2,\START\TEST1.TRC file saved Loading a file File LoadedVerifying Trace Renaming a File Renaming a FileCopying a File Copy MenuDeleting a File Using the Alpha Editor Options and Accessories Options see Ordering Options and AccessoriesAccessories see Options Option Name Description NumberMode includes the measurements Options 8PSK B7J Available only at time of purchase Accessories Ohm Load50 Ohm/75 Ohm Minimum Loss Pad AC ProbeBroadband Preamplifiers and Power Amplifiers Gpib CableUSB/GPIB Interface HP/Agilent 11970 Series Harmonic MixersRF and Transient Limiters Power SplittersHP/Agilent 11974 Series Preselected Millimeter Mixers Static Safe Accessories RF BridgesOhm Transmission/Reflection Test Kit Noise Sources for use with PSA OptionCase of Difficulty Case of Difficulty Types of Spectrum Analyzer Messages Types of MessagesBefore Calling Agilent Technologies Check the BasicsPSA or ESA Series at Read the Warranty Service OptionsCalling Agilent Technologies Contacting Agilent TechnologiesReturning an Analyzer for Service Service TagOriginal Packaging Other PackagingCase of Difficulty Index Index

E4440A specifications

Agilent Technologies has long been recognized for its cutting-edge solutions in the realm of electronic test and measurement, and the E4440A is no exception. This spectrum analyzer is part of Agilent's renowned X-Series, which has set benchmarks in performance and versatility for RF and microwave applications. The E4440A stands out for its reliability, accuracy, and advanced signal analysis capabilities.

One of the most notable features of the E4440A is its exceptional frequency range. The device covers frequencies from 3 Hz to 9 kHz, allowing it to handle a wide array of signals, from low-frequency communications to high-frequency RF applications. By offering such broad bandwidth, the E4440A caters to various sectors including telecommunications, aerospace, and research and development.

In terms of specifications, the E4440A boasts a maximum amplitude measurement accuracy of ±0.7 dB, which is crucial for detailed signal analysis. Its 1 Hz to 30 MHz demodulation bandwidth allows users to accurately analyze complex modulated signals, making it ideal for capturing and decoding various communication formats.

Built on Agilent's exclusive technology, the E4440A integrates the advanced "Digital Signal Processing" capabilities, enhancing its measurement precision and speed. This technology not only improves the analyzer's dynamic range but also allows for quick identification and analysis of signals, ensuring that engineers can optimize performance and troubleshoot issues more effectively.

A unique characteristic of the E4440A is its robust user interface. The spectrum analyzer features a high-resolution display, which provides clear visualizations of signals. Additionally, its intuitive navigation simplifies operation, enabling both seasoned engineers and newcomers to utilize the device effectively without extensive training.

The E4440A is also equipped with a variety of built-in measurement capabilities, including distortion, modulation, and phase noise analysis. These tools empower users to assess the quality of their transmission systems comprehensively, thus facilitating improvements and innovations in design.

In conclusion, Agilent Technologies E4440A stands as a versatile spectrum analyzer that combines cutting-edge technology with user-friendly features. Its broad frequency range, high accuracy, and advanced analysis capabilities make it an essential tool for professionals in the RF and microwave sectors. Whether for research, development, or testing, the E4440A delivers the precision and reliability that engineers expect from Agilent Technologies.
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