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Microwave noise measuring apparatus
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Noise compensated synchronous detector system
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Apparatus and method for tuning a filter
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Automatic frequency control circuits
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Low cost digital automatic alignment method and apparatus
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Circuit means for adjusting frequency keyed telegraph receivers
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Frequency control system
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Fremgangsmaate til automatisk trimming av telekommunikasjonsmottagerapparater.
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Frequency discriminator for carrier shift signaling systems and the like
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使用ｉｑ混頻器偵測反射信號之振幅調變及相位擾動之穩頻及相位雜訊抑制微波源
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Method for receiving periodic impulses
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YIG Filter Tuning System and Method
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High-bandwidth phase lock loop circuit with sideband rejection
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Improvements in or relating to amplitude modulation measuring apparatus
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Automatic frequency control for fsk telegraph receiver
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Frequency adjusting arrangement
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Linear distortion measuring
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(ru)
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Следящий приемник широкополосного сигнала
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Phase-selective amplifier
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Selective voltage output measurement
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Radio direction finder
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Tuning indicator circuit
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Способ контрол правильности настройки резонансных контуров на центральную частоту спектра радиоимпульсного сигнала
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SU324715A1
(ru)
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УСТРОЙСТВО ПОДАВЛЕНИЯ УЗКОПОЛОСНЫХ ПОМЕХ с ПРОИЗВОЛЬНЫМ СПЕКТРОМ
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