96040A Low Phase Noise Reference Source

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Simplify your RF calibration system

The Fluke Calibration 96040A RF ReferenceSource enables you to simplify your RF calibration system by replacing many ofthe instruments and accessories that make up your current system. Its precisionsignal level and attenuation, high signal purity and precision low distortionmodulation make this reference source superior to the general-purpose signalgenerators that are often used to calibrate spectrum analyzers, modulationmeters, RF sensors, attenuators, and similar instruments. Its low phase noiseprovides superior phase noise performance.

Unlike many RF calibration solutions, the96040A is designed specifically for RF calibration, with a calibration-orienteduser interface that makes it easy to learn and use. The 96040A speeds upcalibration procedures, reduces opportunities for operator errors, and greatlysimplifies RF metrology. As the core of an RF and microwave calibration system,the 96040A covers the majority of test points required for calibrating spectrumanalyzers of any frequency range.

Automated with MET/CAL® Plus CalibrationManagement Software, the 96040A reduces complexity and calibration times,dramatically improving efficiency and increasing capacity by 50 % or more overmanual methods.

Key benefits

·Covers a broad range of RF calibration workload

·Reduces the number of instruments and interconnections required foryour RF calibration system

·“What you setis what you get" accurate signal delivery direct to the UUT input

·Integrated 50 MHz frequency counter eliminates need for anadditional instrument ? Calibration-specific interface simplifies technician tasks

·Simplifies uncertainty calculations by delivering known signalsdirect to the unit under test (UUT)

·Lowers RF system maintenance costs

·With automation, reduces spectrum analyzer calibration times by asmuch as 50% over manual methods

Broad, versatile workload coverage

The 96040A calibrates a broad workload ofRF calibration devices, including:

·Spectrum analyzers

·Modulation meters and analyzers

·RF power meters and sensors

·Frequency counters

·Attenuators

·And more

The metrology associated with calibratingthese items becomes simpler because you have fewer error sources anduncertainty contributions to consider.

More than just an RF calibrator

There are many applications in research anddevelopment, manufacturing test, and ATE needing better performance than ageneral purpose signal generator. If wide frequency coverage, frequencyresolution, low harmonics, phase noise and spurious content, signal level andattenuation accuracy, or dynamic range are critical parameters the 96040A is anideal solution.

Cut the cost of your RF calibration systemin half

As the central instrument in a highcapability RF spectrum analyzer calibration system, the 96040A can cut yourcosts in half. The 96040A replaces all of these parts of a “typical" RFcalibration system:

Up to four signal sources (from audio/function generators to RF signal and low phase noise sources)

·Power meters and power sensors

·Step attenuators

·Filters

·Pads

·Couplers

·50 MHz frequency counter

The 96040A not only reduces the initialneed to purchase, install and configure RF system components, but it alsoreduces the maintenance and calibration costs associated with all of thatequipment. The 96040A is also easier to transport than a heavy rack ofequipment and accessories, making it a good solution for on-site calibration.

With its 4 GHz frequency range, the 96040Aperforms more than 80 % of all the tests required on high performance, highfrequency spectrum analyzers.

For workload items that require frequenciesbeyond 4 GHz, you can use an RF and microwave source that you probably alreadyown alongside the 96040A to address the few remaining higher frequency testpoints. For many spectrum analyzer models operating below 4 GHz, you only needa 96040A to perform the entire calibration. You can’t simplifymuch more than that!

No need for additional function generators

The 9640A Reference Source’s internalmodulation capability makes it suitable for applications that require precisionmodulation to be applied to the output signal, such as modulation analyzercalibration and spectrum analyzer sweep time testing using an AM signal withmore accurate modulation rates. You don’t need additionalfunction generators as a low frequency modulation source—the 96040Adelivers it all.

Designed for RF calibration

The 96040A user interface is designed tosimplify processes for calibrating typical items in your workload, such asspectrum analyzers, RF level meters and receivers. Parameter offset, stepping,relative and UUT/DUT error readout modes allow you to work accurately andefficiently, following familiar calibration procedures. You’ll find iteasier than ever to determine the performance and tolerances of units undertest.

The 96040A front panel is equipped withdedicated function keys, context-sensitive softkeys, and a bright, easy-to-readcolor display that make it easy to learn and operate. You can set output levelsin terms of power (watts or dBm), voltage (RMS or peak to peak) using familiarmultipliers and exponent forms. You can move easily between voltage, power anddBm units without losing entered values or accuracy. In error readout mode toadjust the reading, simply rotate the spin wheel and the UUT error is displayeddirectly in dB, ppm or percent.

The simple, calibration-oriented userinterface also makes troubleshooting easier if you encounter an unexpectedresult or an out-of-tolerance condition while following a manual or automatedcalibration procedure.

“What you set is what you get" accuracy and signalpurity

A rugged, precise levelling head delivers96040A signal levels directly to the unit under test (UUT) input just the wayyou set them on the front panel. This unique “What you set is whatyou get" feature helps you avoid problems like losses, noise, interference,ａnd mismatch errors, which can be caused by using intermediate connectors and cables.This approach also maintains the integrity of low-level signals. The headmaintains signal precision and noise immunity throughout a 154 dB dynamicrange, down to the very lowest levels at -130 dBm.

The leveling head reduces lead changes from25 to just 5 during a typical calibration, allowing you to “connect onceａnd test many," extending unattended times in an automated system, and reducingconnector wear.

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Calibrated as a system to assure systemperformance

The 96040A is supplied with a 50 ohmleveling head. The /75 model has both 50 ohm and 75 ohm leveling heads. Eachmainframe and head are calibrated together as a complete system. Systemcalibration helps assure overall system performance. Each 96040A instrument issupplied with a comprehensive ISO 17025 compliant certificate of calibrationwith data for all key parameters, including level and attenuation, output VSWR,ａnd phase noise. You can be assured that your 96040A is traceable, plus RFmetrology and uncertainty analysis become much simpler and faster. Accreditedcertification is available for the 96040A and both 50 ohm and 75 ohm heads.

State-of-the-art phase noise performance

With reduced low phase noise optimized forlow and high offset frequencies and specifications from 1 Hz to 10 MHz offsets,the 96040A offers exceptional phase noise performance beyond that required fortoday’s high performance workloads.

Phase noise data is included in the 96040Acertificate of calibration. Instead of relying only on the more conservativeguaranteed specifications, users have actual performance data for their unit.Even with the best low phase noise signal generators, filters are commonly usedduring spectrum analyzer phase noise calibration tests, reducing noise levelsat wide (high) offset frequencies to improve test margins. The 9600FLT 1 GHzbandpass filter accessory is designed specifically for high performancespectrum analyzer wide-offset phase noise testing and connects easily to 96040Amodels in either benchtop or rack-mounted applications.

Selectable frequency reference input/output expands functionality

Selectable external frequency referenceinput is available as a standard feature on the rear panel of the 96040A. Theinput allows you to lock the frequency output to an external reference, such asthe Fluke Calibration 910R Rubidium Standard, for applications where high clockaccuracy or use of a common reference frequency is important. The frequencyreference output allows a UUT to be frequency locked to the 96040A internalreference clock. This configuration is often required to reduce frequencyoffset errors that may occur between the reference source and the UUT.

Simplify frequency response tests with96040A sweep functions

RF applications often require a frequencysweep. The 96040A’s sweep functions simplify the application of manual legacy spectrumanalyzer frequency response testing, as well as filter response measurements.

Automate with MET/CAL® software for “walk-away" efficiency

In a typical automated RF calibrationprocess, the operator must frequently intervene to change test setups, thuslimiting the benefits that can be realized by the automation. Walk-awayautomation can increase calibration system capacity by up to 25 percent usingprocedures you develop in MET/CAL Plus Calibration Management Software. Forexample, the manufacturer’s calibration procedure for calibrating the Agilent E4407B 26.5 GHzspectrum analyzer requires 27 different and complex test setups. On the otherhand, the 96040A, used with MET/CAL Plus Calibration Management Software, canperform the major core of required tests with a single setup. Only sixadditional setups would be needed using a MET/CAL procedure.

MET/CAL procedures created by FlukeCalibration for the 9640A models can be used by the 96040A in 9640A emulationmode. Optimized automated procedures can save time for the operators byallowing them to leave the system running while attending to other work. Forexample, the E4407B MET/CAL procedure for the legacy 9640A, running inemulation mode on the 96040A, allows for a total 90 minutes of “walkaway" time withinthe total two-hour calibration runtime.

Using the 96040A with other automationsolutions

The 96040A is also integrated easily intoexisting automated systems and software. The time savings and efficiency gainsoffered by the 96040A can be realized by structuring test sequences to takefull advantage of its “connect once measure many" capabilities.

The 96040A is designed to match or exceedthe performance and functionality of the HP3335A and HP8662/3A in calibrationsystems. With HP3335A and HP8662/3A GPIB commａnd emulation as standard,replacing these popular but obsolete and difficult-to-maintain products becomesjust a plug-and-play substitution.

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