Agilent 1959-04 free download

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HEWLETT- PAC K ARD 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. 10, No. 8 PUBLISHED BY THE HEWLETT-PACKARD COMPANY, 275 PAGE MILL ROAD, PALO ALTO, CALIFORNIA APRIL, 1959 Special-Purpose Performance in a General-Purpose 50 KC-65 MC Signal Generator make available in a low-rf to vhf range practical to check the harmonic distortion and JL signal generator the precision and conve bandwidth of high-fidelity a-m receivers on an nience that the present state of the art permits, overall basis by applying the signal to be meas a new 50-kilocycle to 65-megacycle a-m signal ured through the receiver antenna terminal. generator having significantly enhanced per Rf-wise, the generator's carrier frequency formance characteristics has been developed. has been carried high enough to include all of The enhancement extends to all three of the the major i-f bands including the 60-megacycle areas (carrier, modulation and output control) band, while high accuracy in selecting the car SEE ALSO: that define and classify a rier is facilitated by a two-frequency crystal frits becomes signal generator. Modula calibrator. For such work as checking lines and consultant, p. 6 Gaither joins -hp- tion characteristics, for ex driving antennas and bridges, the instrument B of D, p. 6 ample, are such as to per- has been given a high rf output of 3 volts across mit modulation by square waves and other 50 ohms or 6 volts open circuit. It also has the complex waves as well as by dc levels, a facility property of maintaining essentially constant that can be used for remote programming and any modulation level and any rf output level on-off or tone burst modulation. Envelope dis over the full rf range. Other conveniences in tortion is small