beat interference in a sentence

1. The first development was a continuous-wave apparatus using Doppler-beat interference for detection.
2. In June 1934, large vessels passing through the Kiel Harbor were detected by Doppler-beat interference at a distance of about.
3. This frequency was chosen to minimize the chrominance beat interference pattern that would be visible in areas of high color saturation in the transmitted picture.
4. With the antennas placed flat on the ground some distance apart, Runge arranged for an aircraft to fly overhead and found that the receiver gave a strong Doppler-beat interference signal.
5. It's difficult to find beat interference in a sentence.