Agilent 1963-01 free download

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HEWLETT-PACKARD JOURNAL T E C H N I C A L I N F O R M A T I O N F R O M T H E - h p - L A B O R A T O R I E S Vol. 14, No. 5-6 UBLISHED BY THE HEWLETT-PACKARD COMPANY, 1501 PAGE MILL ROAD, PALO ALTO, CALIFORNIA JAN. -FEB., 1963 A Versatile Wave Analyzer for the 1 kc to 1.5 Me Range THE transistorized wave analyzer (preci contained test set for frequency response meas sion tunable voltmeter) introduced by urements. Another output is a dc current, pro Hewlett-Packard in 1958 greatly simplified the portional to meter deflection, for operation of measurement of harmonic and intermodulation graphic recorders. The third output is an ac components in the audio frequency range. voltage identical in frequency to the signal Automatic frequency con component being measured, enabling precision trol in this instrument, the measurement of the component's frequency Model 302A, made possi with a digital counter. Requiring no lengthy ble the use of an extremely warm-up procedure, the 302A has a wide dy narrow passband in the measurement circuits namic range and an excellent signal-to-noise without requiring constant retuning to prevent ratio (input noise <10 »v) enabling the meas loss of a drifting signal. urement of weak signals in the presence of Other features contributing to the versatility noise. of the 302A included three output signals. One Now, a new -hp- wave analyzer (Fig. 1) pro of these is a signal source controlled by the in vides the same ease of operation and conveni strument's tuning, making the analyzer a self- ence features in the 1 kc to 1.5 Me range, mak- Fig. 1. Neu' -hp- Model ?lOA VC'aie Analyzer measures ampli Fig. 2. Using neu analyzer ttith -hp- ciirreut- tude of individual frequency components in I kc-1.5 Me region