MOTTAGARE MED EN RADIOFREKVENSSEKTION, EN MELLANFREKVENSSEKTION OCH EN FREKVENSSYNTETISERINGSKRETS

摘要

In a receiver having a frequency synthesizing circuit, the deviation of the tuning of the intermediate-frequency section relative to a standard tuning is periodically measured by means of a measuring circuit, which circuit then causes a change in the frequency of a local oscillator for correcting said deviation.