Method and apparatus for testing microwave repeaters for IM dist

Details Method and apparatus for testing microwave repeaters for IM dist Method and apparatus for testing microwave repeaters for IM dist

1977-01-05

1977-09-13

Kominski, John

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

324 58A, 324 57DE, G01R 2900

Patent

active

040485595

ABSTRACT:
Microwave repeaters and the like are tested for third-order IM distortion by applying two, swept-frequency test-tones to the repeater. The test-tones are offset by a fixed frequency difference .delta.. A detector circuit, connected to the output of the repeater, measures the amplitude of any signal component of frequency 2.delta. which is a direct measure of the repeater's non-linearity. Because a signal component of frequency 2.delta. can be generated by second-order distortion within the detector itself, the detector includes special circuitry to cancel out any such unwanted term.

REFERENCES:
patent: 2685062 (1954-07-01), Schroeder et al.
patent: 2929989 (1960-03-01), Hurvitz
patent: 3032712 (1962-05-01), Hurvitz
patent: 3119062 (1964-01-01), Codd
patent: 3182254 (1965-05-01), Feldman et al.
patent: 3241059 (1966-03-01), Wu
patent: 3369176 (1968-02-01), Palatinus
patent: 3411079 (1968-11-01), Palatinus
patent: 3411080 (1968-11-01), Palatinus

Affiliated with

Also associated with

Rating

Method and apparatus for testing microwave repeaters for IM dist does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for testing microwave repeaters for IM dist, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for testing microwave repeaters for IM dist will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-276767