%
% Debug; temporary
%
%


  if exist( 'prdFig' ) ~= 1
      prdFig = figure;
  else 
      prdFig = figure( prdFig ); 
  end
    
  set( prdFig, 'name', ' Periodic Test Jitter', ...
       'DeleteFcn', 'clear prdFig' );
  set(gcf,'position',FigurePosn)
  clf

  m = size(periodicTest,1);
  plot(periodicTest(2:m,1), diff(periodicTest(:,1))*1000);
  grid on
  zoom on