HP8340B 合成掃描儀（10 MHz 至 26.5 GHz）

描述
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HP8340B 技術(shù)指標(biāo)
頻率范圍：10MHz~26.5 GHz
精度：CW模式下
1Hz, 0.01~<7.0 GHz
2Hz, 7.0~<13.5 GHz
3Hz, 13.5~<2.0 GHz
4Hz, 20.0~26.5 GHz
HP8340B合成掃源
HP8340B集合成源與寬帶掃源的優(yōu)良性能于一體，并可由HP-IB接口控制。這種性能與通用性的有效組合非常適合于系統(tǒng)的手動(dòng)或自動(dòng)測(cè)試，并且在一些情況下，可使HP8340B替代掃頻振蕩器、頻率計(jì)數(shù)器、射頻合成源和微波合成源。
頻率精度和頻譜純度
合成的寬帶頻率范圍(10MHz~26.5GHz)和1~4Hz的頻率精度(取決于頻率波段)是由間接的合成技術(shù)決定的，使HP8340B能夠獲得同HP8671B、

8672A和8673系列合成信號(hào)發(fā)生器一樣的單邊帶相位噪聲。HP8340B同樣具有1×10-9/天的良好的長(zhǎng)期穩(wěn)定性。
HP8340B的CW轉(zhuǎn)換時(shí)間優(yōu)于50ms(典型值<35ms)。同樣，“快速相位鎖存”程序能夠降低CW轉(zhuǎn)換時(shí)間達(dá)到11~22ms(取決于頻率步進(jìn)量和優(yōu)良

頻率值)。
輸出電平
HP8340B能夠提供較高的輸出電平，它可以0.05dB的精度控制低至-110dBm。高電平精度可由優(yōu)良的準(zhǔn)確性和平坦度來(lái)加以補(bǔ)償。HP8340B

可以>20dB的電平動(dòng)態(tài)范圍表征電平靈敏度裝置的性。