Scientific-Atlanta Series 1580 Antenna Pattern Recorder

Authors: Sidney J. Manning, Samuel D. Davis
Publication: AMTA 1979
Copyright Owner: NSI-MI Technologies

Antenna pattern recorders are used to plot the relative signal strength of an antenna under test as a function of the angular position of the antenna. The signal plotted is obtained from the output of a receiver or directly from a microwave detector. The position information is normally obtained from synchro transmitters geared to the test posi ti oner axis. Typical antenna pattern recorders are electromechanical devices which employ servo systems to drive the recorder axis. A chart drive servo system positions the recording paper as a function of the angular position of the antenna. A pen servo system positions a recording pen in response to the amplitude of the input signal.



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