Patent ID: 6058291
Filing Date: 2000-05-02
Classification: H03J,H04B,H04L

Abstract:
In a frequency defined power spectrum, a method for suppressing a carrier frequency component in a radio transmitter, the steps comprising:combining a substantially direct current (DC) input having an amplitude with a local oscillator input having a carrier frequency in a modulator to obtain an output having a power magnitude at said carrier frequency;defining a minimum threshold power magnitude at said carrier frequency suitable for use in said radio transmitter that substantially suppresses said carrier frequency component when said power magnitude is less than said minimum threshold power magnitude;altering by an altered amplitude said amplitude of said DC input until said power magnitude of said output is less than said minimum threshold power magnitude;reiteratively performing said step of altering said amplitude of said DC input until said power magnitude achieves a local minimum power magnitude; andthereafter, establishing said altered amplitude of said DC input as a calibration correction coefficient.