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spectrum analyser with direct display on the entire test frequency spectrum by a oszillographische device
spectrum analyser with direct display on the entire test frequency spectrum by a oszillographische device
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机译:频谱分析仪可通过示波器装置直接显示整个测试频谱
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471,632. Impedance networks. SIEMENS & HALSKE AKT.-GES. Aug. 12, 1936, No. 22246. Convention date, Aug. 13, 1935. [Class 40 (iii)] [Also in Group XXXVI] A filter circuit for use in apparatus for electrically analysing the frequencies of oscillations consists of two circuits containing inductance, resistance and capacity, the two circuits being coupled together by a tapping on the inductance L of the first circuit, whereby steep-sided transmission curves are obtained. The transmission curves of adjacent filters intersect at approximately 0À7 of their maximum height.
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