Method of measuring radio-frequency interfering voltages

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Analysis of complex waves

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455 67, 455115, G01R 2316, H04B 1700

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active

050252089

ABSTRACT:
For fast measurement of radio-frequency interference voltages (also called RFI voltages) within a predetermined frequency range in conformity with rating standards, the maximum and minimum peak voltage levels are measured during tuning of the frequency range; when the maximum peak voltage level exceeds a predetermined limit value,the tuning process is interrupted and a quasi-peak measurement is performed at this instantaneous frequency.

REFERENCES:
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patent: 4143323 (1979-03-01), Cieslak et al.
patent: 4810960 (1989-03-01), Owen et al.
Track and Hold, Circuit Description, Hewlett-Packard Manuel 8568, pp. 8-223-8-224, 8-234.
C.I.S.P.R. Specification for Radio Interference Measuring Apparatus and Measurements, CISPR (1987).
Milde H., "Messung von Storsignalen" Radio Fetnsehen Elektronik, vol. 21, No. 16, 1972, pp. 534-536.
Coenning F., "Automatic Level Measuring System for Frequencies Between 200 Hz and 100 MHz", Transactions on Instrumentation and Measurement, vol. DM-20, No. 4, 1971, pp. 225-230.

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