A filter wherein the poles and zeroes are programmable in a high speed control loop to form a particular desired filter profile. The control loop retrains the filter's poles and zeroes during the "off" time between the reception or transmission time slots. Desired pole and zero frequencies are injected and peak values are stored in sample and hold circuits. This eliminates variations from voltage supplies, component tolerance, temperature, aging, etc.

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> Device and method for the suppression of pulsed wireless signals

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