The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 06, 1979
Filed:
May. 31, 1977
Vito J Parato, Bay Shore, NY (US);
Cutler-Hammer, Inc., Milwaukee, WI (US);
Abstract
A calibration system for a wideband superheterodyne receiver in which a fixed-frequency signal source supplies an IF signal to the mixer for conversion to an RF signal. The RF signal produced in this manner passes through the RF components of the receiver to the input port of the receiver where it is detected by a wideband detector. The video output signal from the detector provides an indication of the RF gain of the receiver required for calibration. The fixed frequency IF signal may be converted to an RF signal for calibration purposes at every frequency that the receiver can accommodate merely by sweeping the local oscillator throughout its frequency range.