96270A 27 GHz RF Reference Standard

One instrument can cover a large load of RF calibrations

The 96270A can cover a large number of RF calibration loads, including.

• Spectrum analyzers, including higher frequency models
• RF Power Sensors
• Regime meters and analyzers
• Measurement receivers
• frequency counter
• RF Attenuators and Components
• High Frequency Oscilloscope
• wait a minute!

The use of the 96270A will make the associated metrological calibration easier with fewer sources of uncertainty and error than traditional RF calibration systems.

"What you set is what you get" ensures high output accuracy and purity

The 96270A delivers pure, accurate level signals directly to the inputs of the device under test, exactly as set up on the front panel. This unique set-and-forget feature allows you to avoid insertion loss, mismatch errors, and uncertainties introduced by cables and other interconnecting devices, and eliminates the need for complex setups and time-consuming alternative methods to obtain accurate results. There's no need for complicated setups and time spent using other methods to get accurate results.

For low-level signals, the 96270A's rugged and precise 75Ω or 50Ω active signal header can be used. The signal head generates signals from low frequencies to as high as 4 GHz at the input of the device under test, minimizing insertion loss, noise, interference and mismatch errors, and guaranteeing low-level signal integrity over the entire 154 dB dynamic range down to -130 dBm.

For most narrow amplitude signal ranges up to 27 GHz, the 96270A with its microwave output and HF amplitude stabilization options can be used to achieve precise output of signals on a "set it and forget it" basis.

Self-calibration avoids repeated measurements and calculations

The 96270A can "self-calibrate" or offset insertion loss and attenuation caused by system components such as cables, attenuators, power dividers, and connectors with a correction file that establishes a reference plane directly at the input of the UUT. This frequency/amplitude correction file is stored in the 96270A's memory. Its memory can save correction files for up to 30 different configurations of outputs and connections. Using the correction file, the 96270A automatically applies the correction data at the output level, thus outputting the user's desired signal directly on the reference plane established with the input of the device under test. This saves you a great deal of time because there is no longer any need to measure, calculate and apply correction factors for individual components of the signaling system.

You can also export or import external correction files from the USB port on the front panel of the 96270 using a USB flash drive, or via the GPIB interface. The flexibility provided by this feature is useful if you intend to apply equipment calibration data determined from other measurements, or if you want to use a correction file to correct a mismatch (gamma) during power sensor calibration.

More than just an RF calibrator

In many R&D and production tests and automated test systems there is a need for a device that can perform better than general purpose signal generators. The 96270A is the ideal choice when wide frequency coverage, frequency resolution, low harmonic distortion, phase noise, parasitic signals, signal level and attenuation accuracy, and dynamic range are important parameters.

Halve the cost of the RF calibration system

When putting together a high-performance spectrometer calibration system such as the 96270A, you can cut your costs in half or more. It replaces all of the following components in a conventional calibration system:

Up to 5 signal sources (from audio/function generators to RF microwave sources and low phase noise sources)

• power meter
• power sensor
• Stepping Attenuator
• filters
• coupler
• 300MHz frequency meter

The 96270A not only reduces the initial cost and the time it takes to purchase, install and commission an RF system, it also reduces the amount of money spent on maintaining and calibrating this equipment. For spectrum analyzer models operating below 27 GHz, as well as most power transducers, you only need one 96270A to perform the entire calibration.

The 96270A is also easy to transport, no more heavy rack equipment and accessories, it is the ideal solution for on-site calibration.

No additional power meters, function generators or counters required

The self-contained dual power sensor readout allows you to use the 96270A as a power meter for RF calibration without the need for a separate power meter. You can replace the 40 GHz power sensor that comes with the HF High Frequency Amplitude Stabilization option with other compatible models, which can be used for power measurements even up to 67 GHz.

The 96270A RF reference standard's internal modulation capability makes it ideal for applications that require a highly accurate modulation signal to be superimposed on the output signal, such as the calibration of modulation system analyzers and spectrum analyzer sweep time testing with an AM and more accurate modulation rate. You no longer need an additional signal source as a low-frequency modulation signal source, the 96270A is perfectly suited for the job. The integrated 300 MHz frequency meter allows you to greatly reduce the number of instruments required for RF calibration.

Specifically designed for RF calibrators

Many RF calibration systems are assembled by mixing and matching multiple general-purpose signal generators, power transducers, and non-calibration-specific instruments.The 96270A is completely different, designed specifically for RF calibration. Its user interface is designed to simplify the process of calibrating items such as spectrum analyzers, RF level meters, and receivers. Following the familiar calibration process, the display of parameters such as offset, step and DUT error will make your calibration work more accurate and efficient. You will find it easier to verify the performance and errors of the instrument under test than traditional methods.

The 96270A front panel is equipped with dedicated function keys, context-sensitive softkeys, and a bright, easy-to-read color display, all of which make it easier to learn and operate. You can set the output level by power (watts or dBm) or voltage (RMS or peak-to-peak) in the familiar multiplier or exponential form. You can easily switch between voltage, power, or dBm units without changing the output value or accuracy. In error display mode, simply turn the spinning wheel and the error of the device under test can be displayed directly in dB, ppm or percentage.

The simple, calibration-oriented user interface makes it easy to diagnose and troubleshoot if results are unexpected or exceedingly poor during manual or automatic calibration.

无以伦比的低相位噪声性能

96270A提供的专为低频和高频偏置优化的低相位噪声信号，频率偏移可从1Hz到10MHz，如此优异的指标完全超越了当今需要高性能指标负荷的要求。

相位噪声的测试数据包含在96270A随机的校准证书中，这样用户就无需依赖更为保守的技术说明书上的指标，而可以使用他们自己96270A的实际测试数据。

灵活的配置匹配您的需求和预算

一系列的型号、选项和配件可以使您购买你需要的功能，以后当您需求变化和增长时，可以购买这些您需要的功能。

基本配置的96270A射频参考标准有一个50Ω的稳幅有源信号头。96270A/75则各有一个50Ω和75Ω有源信号头。信号头可以提供高达4GHz的稳幅、大衰减、调制及低相噪的信号，涵盖了频谱分析仪任意频率测试范围测试点的80%，包括高频型号，还可用于功率传感器的线性度校准。96270A前面板微波输出端口的信号输出频率从1mHz到27GHz，在电平准确度方面完全可与其他通用信号源匹敌。

96270A/HF射频参考标准包括一个HF高频稳幅选件，这是由Rohde&Schwarz 40GHz功率传感器和Aglient 1167B功分器，外加一条计量级的微波电缆和一个精密PC3.5毫米适配器组成。96270A使用这种配置输出的微波信号可以使您在1kHz到27GHz范围内校准频谱分析仪、功率传感器和高频示波器。功率传感器和功分器使得96270A可以自动反馈，调整96270A输出高精度、稳幅和高纯度的信号，在96270A前面板设置的信号，也就是在功分器输出端头和被测设备输入端的参考面上建立的信号。

带有LL低电平微波输出的96270A/LL射频参考标准扩展了微波输出范围，从前面板连接端口的-4dBm（HF高频稳幅选件输出则为-10dBm）最低可至-100dBm，适用于需要低电平信号高达27GHz的场合。但这个功能在示波器校准，或者一些频谱分析仪和功率传感器测试上是非常有价值的。

96270A/LL/HF既包括HF高频稳幅选件也包括LL低电平微波输出，适用于更宽广负荷的覆盖。

9600FLT 1GHz 高偏移相位噪声滤波器是专门为高性能频谱分析仪相位噪声测试所设计的。即使有性能优秀的低相噪声信号发生器，技术人员偶尔也需要在高性能频谱分析仪相位噪声测试中使用滤波器，在高偏移频率下降低噪声水平和改善测试的边带。9600FLT可以通过台式或者机架结构都可以很容易与96270A相连。

额外的功率传感器、机架式滑动套件、连接套件和运输箱组成了可用的配件清单，使96270A更容易建立测试系统和运输。

按一个系统被校准确保整体性能

为了确保整体的系统性能，96270A的主机和有源信号头是作为一个完整的系统在工厂一起校准过的，出厂时都带有一份符合ISO 17025的校准证书，其中包含所有关键参数的测试数据，如电平和衰减、有源信号头的输出驻波比VSWR和相位噪声，可以确保您的96270A是完整溯源的，之后进行射频计量和不确定度的分析将更为简单快捷。如有要求，也可为用户提供96270A及50Ω和75Ω有源信号头的认可证书。

频率参考输入/输出让功能更强大

频率参考输入/输出端在96270A的后面板上是标配的性能，允许将本机的时钟参考锁定到一个外部频标上，如福禄克910R GPS监控的频率标准，这对那些需要高准确度的时钟信号或共享时钟参考的应用是至关重要的。96270A的频率参考输出则允许把UUT锁定到96270A的内部时钟上，这种配置对于减小被测设备和参考标准间的频率偏移误差也是十分必要的。

用96270A扫频功能简化频响测试

射频校准经常需要扫频功能，使用96270A的扫频功能，可以大大简化频谱分析仪和滤波器的频响测试。

用MET/CAL软件进行自动不间断校准，提高效率

在典型的射频自动校准中，经常需要操作人员不断介入，改变测试设置和连接，这限制了进行自动校准的好处。如果使用在MET/CAL中开发的校准程序，由于程序本身已经进行了大量的连线和设置的优化，尽可能减少操作人员的介入，因此程序可以不间断的长时间执行，这样可以提高25%甚至更多的校准能力。我们已为96270A专门开发了一个MET/CAL校准程序，可以作为实例用于编写其他射频校准程序，去校准您公司的专有设备。

所有为9640A射频参考源编写的校准程序，也可以用96270A以9640A的仿真模式来执行。

在其他自动测试系统中应用96270A

96270A可以很容易的集成到一个已有的自动测试系统和软件中。充分利用它的“一次连接测试多台”的功能安排测试，可达到节省时间和提高效率的目标。

由于带有常用设备的GPIB命令仿真功能，因此96270A在自动测试系统中可以很容易代替其他设备。96270A可以仿真HP3335A、HP8662/3A、HP 8663A、HP8340A、 HP8360 B-Series、Agilent E8257 系列和Fluke 的9640A、9640A-LPN和9640A-LPNX。