本公司長期專業(yè)銷售、租賃、維修、計量、回收高頻二手儀器 The company's long-term professional sales, leasing, repair, recycling second-hand equipment, high frequency measurement 聯(lián)系人-陳衛(wèi)平 手機: 13549336060/13378604435 QQ客服：742002535 阿里旺旺:chenweipin1987 電話: 0769 - 82134961 網(wǎng)站：http://yiqihuishou.ganji.com.cn/xiugai.htm 地址:廣東東莞市塘廈鎮(zhèn)塘廈第一工業(yè)區(qū)塘蓮街9號 長期高價|回收手機綜合測試儀|回收藍牙測試儀|回收WIFI測試儀|回收頻譜分析儀|回收網(wǎng)絡(luò)分析儀|回收光譜儀及光模塊|儀器附件和校準(zhǔn)件等...。公司從事二手儀器回收多年，在北京、天津、上海、蘇洲、杭洲、青島、深圳、廣洲，東莞等二手行業(yè)中享有好的信譽，上門高價回收各類二手儀器! Rapid growth in satellite and wireless communications markets has contributed to the need for improved overall system performance which, in turn, applies pressure to improve the noise figure measurement and performance of subsystems and their components. To do this accurately, it is necessary to understand how a number of variables affect the overall measurement uncertainty. For measurements with an analyzer that measures noise figure, the measurement system contributors typically include: the analyzer itself the noise source the characteristics of the device under test (DUT) These factors interact in a complex way, but the overall measurement uncertainty can be modeled. The purpose of our 'Noise Figure Uncertainty Calculator' is to provide the measurement uncertainty associated with a particular DUT based on its characteristics and the specifications of the measurement system. For the model to be accurate in the Y-factor measurement technique case, the DUT must have reasonable reverse isolation, so that mismatch on one port does not drastically affect the impedance seen at the other port. For a more complete analysis refer to the article "Calculate the Uncertainty of NF Measurements", written by Duncan Boyd, Microwaves & RF October 1999, pp.93-102. 頻譜分析儀 HP8560系列： HP8563E，HP8561B，HP8560EC，HP8564E，HP8563EC，HP8560A， HP8560E，HP8561E，HP8562A，HP8562E，HP8565E，HP8565EC， HP8562B，HP8562C，HP8561EC，HP8561A，HP8564EC，HP8562EC， HP8563A，HP8560B HP8590系列： HP8594Q，HP8591A，HP8596E，HP8590D，HP8590A，HP8590E， HP8593E，HP8593EM，HP8591B，HP8591C，HP8594E，HP8594EM， HP8590C，HP8590L，HP8595A，HP8595E，HP8592D，HP8592E， Hp8591E，HP8591EM，HP8594A，HP8594C，HP8596A，HP8596EC， HP8595EM，HP8596EM，HP8592A，HP8592B，HP8593A，HP8593B，HP8592L， 主要特性與技術(shù)指標(biāo) 性能 +/-0.19 dB 絕對幅度精度 -155 dBm 顯示平均噪聲電平（DANL） 10 kHz 偏置時的相噪：-118 dBc/Hz 81 dB W-CDMA ACLR 動態(tài)范圍 分析帶寬 標(biāo)配 10 MHz 分析帶寬 可選 40 或 80 MHz 分析帶寬，以便捕捉和測量復(fù)雜信號 適用于 40 或 80 MHz 分析帶寬的 -78 dB（額定值）三階互調(diào) 適用于校準(zhǔn)后的 VSA 測量的 300 MHz 分析帶寬 靈活性 靈活的平臺，包含 16 個可選且易于使用的內(nèi)置測量專用軟件和硬件選件 標(biāo)配 PowerSuite 一鍵式功率測量 通用數(shù)據(jù)分析、可視化、計量自動化的數(shù)據(jù)分析軟件 MATLAB。PSA 系列 MATLAB軟件 描述 E4445A PSA 高性能頻譜分析儀可測量和監(jiān)測頻率高達 13.2 GHz 的復(fù)雜射頻信號。