Audio, ultrasonic and RF noise generator for demonstration of el

Details Audio, ultrasonic and RF noise generator for demonstration of el Audio, ultrasonic and RF noise generator for demonstration of el

1985-10-16

1986-09-23

LaRoche, Eugene R.

Oscillators

Electrical noise or random wave generator

331 68, 340384E, 455 1, 313235, H03B 2900, H01J 100

Patent

active

046138315

ABSTRACT:
A portable low-output-level generator producing simultaneous audio, ultrasonic and RF noise for the test and demonstration of instruments designed to locate electrical interference, for demonstration of the broad frequency spectrum of electrical noise radiation, for antenna tests, to test the EMI susceptibility of electronic equipment, and to illustrate the effects of said noise on TV and radio receivers. This generator is enclosed in a housing and communicates audio and ultrasonic sounds to the observer via a vibrating diaphragm mounted on the face of the housing, with means provided to attenuate the audio sounds relative to the ultrasonic, and this generator radiates RF from a retractable antenna mounted on and extending outward from the housing.

REFERENCES:
patent: 976778 (1910-11-01), Brown

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