Instruments for measurement of carrier power and antenna impedan

Details Instruments for measurement of carrier power and antenna impedan Instruments for measurement of carrier power and antenna impedan

1981-07-06

1983-10-11

Krawczewicz, Stanley T.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

343703, G01R 2704

Patent

active

044095449

ABSTRACT:
Instruments to measure carrier power and antenna impedance in AM broadcasting, wherein power, resistance, and reactance are computed electrically from two radiofrequency sample voltages proportional to instantaneous current and voltage in a transmission line conveying power to the antenna system, and the results of computation are displayed as a digital readout.

REFERENCES:
patent: 3825825 (1974-07-01), Smolka
patent: 4071819 (1978-01-01), DeSantis
patent: 4257123 (1981-03-01), Birt
Maeda I: "Multifrequency LCR Meters . . . "-hp Journal-Feb. 79, pp. 24-32.
Maeda II: "An Automatic, Precision 1-MHZ Digital LCR Meter" hp Journal-Mar. 74, pp. 2-9.
Hashimoto: "An Automatic Wide-Range Digital LCR Meter" hp Journal-Sep. 76, pp. 9-16.
Reis: "Measurement of an Unknown Impedance . . . " IBM Tech. Disclosure Bulletin-vol. 24-No. 7A-Dec. 1981.

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