US PATENT SUBCLASS 342 / 435
.~.~.~.~.~ By diode switching

Current as of: June, 1999
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342 /   HD   COMMUNICATIONS: DIRECTIVE RADIO WAVE SYSTEMS AND DEVICES (E.G., RADAR, RADIO NAVIGATION)

350  DF  DIRECTIVE {10}
385  DF  .~ Beacon or receiver {2}
417  DF  .~.~ Direction-finding receiver only {14}
432  DF  .~.~.~ With plural fixed antenna pattern comparing {5}
433  DF  .~.~.~.~ Successively commutated {3}
435.~.~.~.~.~ By diode switching

DEFINITION

Classification: 342/435

By diode switching:

(under subclass 433) Subject matter wherein the receiver is

periodically connected to the various antennas by diode switching means.