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二手儀器回收/陳衛(wèi)平
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本公司長(zhǎng)期回收/銷(xiāo)售/維修/憑租儀器:音頻儀器,視頻儀器,高頻儀器(如網(wǎng)絡(luò)分析儀,頻譜分析儀高頻信號(hào)源,無(wú)線(xiàn)電綜合測(cè)試儀等高頻儀器,并高頻承接儀器維修)!
E4400系列:
E4401A,E4401B,E4403A,E4404A,E4405A,E4406A,E4407A,E4408A,
E4402B,E4411B,E4408B,E4411A,E4403B,E4404B,E4406B,E4405B,E4407B
E4440系列:
E4443A,E4443B,E4440B,E4445A,E4445B,E4448A,E4446A,E4440A,
E4447A,
E7400系列:
E7405A,E7403A,E7404A,E7401A,E7402A
N9300系列:
N9320A,N9320B,N9340B,N9340A,N9342C,N9010A,N9020A,N9030A
R3132A,R3361C,R3261C,R3131,HM5010,HM5011,
HM5012,HM5014,HM5510,HM5511,SA970,SA-930,
主要特性與技術(shù)指標(biāo)
性能
+/-0.24 dB絕對(duì)幅度精度
-155 dBm/Hz顯示的平均噪聲電平(DANL)
10 kHz偏置時(shí)的相噪:-118 dBc/Hz
81 dB W-CDMA ACLR 動(dòng)態(tài)范圍
分析帶寬
40或80 MHz分析帶寬支持捕獲和測(cè)量復(fù)雜的信號(hào)。
-78 dB(額定值)三階互調(diào)
0.5 dB IF頻率響應(yīng)
-78 dB(額定值)三階互調(diào)
靈活性
功率套件能對(duì)20多種無(wú)線(xiàn)制式進(jìn)行一鍵式功率測(cè)量
描述
E4440 PSA測(cè)量高達(dá)26.5GHz的RF及微波信號(hào)。
全新! HSDPA/HSUPA 測(cè)量專(zhuān)用件
全新! 內(nèi)置接收器專(zhuān)用件
主要特性:
了解更多特性, 請(qǐng)查閱PSA 系列宣傳資料
動(dòng)態(tài)范圍
-155dBm 顯示平均噪聲級(jí) (DANL)
+17 dBm 三階互調(diào)(TOI)(+19 dBm 典型)
-116 dBc/Hz 相位噪聲(10 kHz 偏置)(-118dBc/Hz 典型)
精確度
±0.62 dB絕對(duì)振幅精度(±0.24 dB 典型)
±0.38 dB 頻率響應(yīng) (±0.11 dB 典型)
±0.07 dB對(duì)數(shù)放大線(xiàn)性度
速度
快速低電平寄生搜索
<30 ms 快速ACP測(cè)量
50測(cè)量/秒本地更新率,45測(cè)量/秒遠(yuǎn)地測(cè)量
標(biāo)準(zhǔn)特性:
具有自動(dòng)量程功能的全數(shù)字IF
相噪優(yōu)化
全套檢波器套件
160個(gè)分辨率帶寬設(shè)置(10%步進(jìn))
2 dB 步進(jìn)衰減器
FFT 及掃頻測(cè)量模式
門(mén)通選掃頻
套單鍵功率測(cè)量
用內(nèi)置的CISPR和MIL標(biāo)準(zhǔn)預(yù)兼容EMI檢波器和帶寬進(jìn)行EMI測(cè)量
可選特性:
內(nèi)置前置放大器(選項(xiàng) 1DS: 100 kHz - 3 GHz; 選項(xiàng) 110: 10 MHz - 26.5 GHz)
簡(jiǎn)便易用的內(nèi)置 PSA系列測(cè)量專(zhuān)用鍵
調(diào)制分析及鏈接到89601A矢量信號(hào)分析軟件
40 MHz 或80 MHz 帶寬數(shù)字轉(zhuǎn)換器
采用 外混頻的325 GHz頻率范圍
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.