主要特性與技術(shù)指標(biāo)

綜合解決方案提供 10 MHz 至 40 GHz 的頻率范圍

多點(diǎn)觸控界面

包括頻譜分析儀和 IQ 分析儀（基礎(chǔ)）模式

內(nèi)置標(biāo)配選件包括 P03、PFR、FSA、NFE 和 B25

2.4 mm（陽頭）輸入連接器

描述

N8976B 高性能噪聲系數(shù)分析儀可以進(jìn)行快速、準(zhǔn)確且可重復(fù)的噪聲系數(shù)測量。與 SNS 系列噪聲源和 U7227 系列 USB 前置放大器配合使用時(shí)，來自 SNS 的 ENR 數(shù)據(jù)和 USB 前置放大器數(shù)據(jù)自動(dòng)下載到 N8976B。

N8976B 擁有多點(diǎn)觸控界面，支持放大、縮小和拖動(dòng)手勢。只需手指一點(diǎn)，即可訪問大多數(shù)菜單，無需改變屏幕。

通過一步完成多達(dá) 12 種被測器件設(shè)置的綜合校準(zhǔn)，顯著簡化了 Y 因數(shù)測量的噪聲源校準(zhǔn)。使用內(nèi)部校準(zhǔn)功能，無需執(zhí)行用戶校準(zhǔn)，可以為許多類型的被測器件節(jié)省寶貴的測試時(shí)間。

內(nèi)置噪聲系數(shù)不確定度計(jì)算器可以預(yù)先填寫來自 SNS 噪聲源、USB 前置放大器的數(shù)據(jù)，以及所有必要的儀器參數(shù)，例如分析儀噪聲系數(shù)、增益、噪聲系數(shù)不確定度以及匹配等。默認(rèn)噪聲系數(shù)設(shè)置提供了同時(shí)的噪聲系數(shù)和增益測量。使用表格（Table）視圖，可以以表格形式同時(shí)查看多種測量結(jié)果，包括噪聲系數(shù)、噪聲因數(shù)、Y 因數(shù)、增益、P_hot、P_cold 和 T_effective。

N8976B 的頻譜分析儀模式和 IQ 分析儀（基礎(chǔ)）模式提供了額外的靈活性，使客戶除了能夠測量噪聲系數(shù)之外，還能根據(jù)需要更深入地分析被測器件特性。

44 GHz 內(nèi)置前置放大器（選件 P44）、25 MHz 分析帶寬（選件 B25）、精密頻率參考（選件 PFR）、精細(xì)步進(jìn)衰減器（選件 FSA）和本底噪聲擴(kuò)展（選件 NFE）作為標(biāo)配選件提供。

通過經(jīng) LAN、USB 或 GPIB 接口連接到是德科技信號發(fā)生器，可以實(shí)現(xiàn)外部仿真本振與頻率轉(zhuǎn)換器件輸入的連接。本振控制可從 N8973B 進(jìn)行調(diào)整。

describe

The N8976B high performance noise coefficient analyzer can measure the noise coefficient quickly, accurately and repeatably. When used in conjunction with SNS series noise sources and U7227 series USB preamplifiers, ENR data and USB preamplifier data from SNS are automatically downloaded to N8976B.

The N8976B has a multitouch interface that allows you to zoom in, out and drag gestures. Most menus can be accessed with a single finger, without changing the screen.

The noise source calibration of Y factor measurement is significantly simplified by performing a comprehensive calibration of up to 12 device Settings in one step. The use of internal calibration functions, without the need for user calibration, can save valuable test time for many types of devices under test.

The built-in noise factor uncertainty calculator can pre-fill in data from SNS noise sources, USB preamplifiers, and all necessary instrument parameters such as analyzer noise factor, gain, noise factor uncertainty, and matching. The default noise factor setting provides simultaneous noise factor and gain measurements. Using a Table view, you can view several measurements at the same time in a Table, including noise coefficient, noise factor, Y factor, gain, Phot, Pcold, and Teffective.

The N8976B spectrum analyzer mode and the IQ analyzer (foundation) mode provide additional flexibility to allow customers to measure noise coefficients in addition to more in-depth analysis of device characteristics as needed.

The 44 GHz built-in preamplifier (option P44), 25 MHz analysis bandwidth (option B25), precision frequency reference (option PFR), fine step attenuator (option FSA), and background noise expansion (option NFE) are provided as standard options.

Through LAN, USB or GPIB interface connected to the technology signal generator, the external simulation of local vibration and frequency conversion device input connection can be achieved. The local vibration control can be adjusted from N8973B.