MEGA-NODE

INSTRUMENT WHICH IS A CALIBRATED RANDOM NOISE SOURCE PROVIDING A SELECTION OF SEVERAL OUTPUT IMPEDANCES WITH A CHOICE OF EITHER BALANCED OR UNBALANCED OUTPUT AND THE INSTRUMENT MAY BE USED FOR THE MEASUREMENT OF NOISE POWER IN A PRACTICAL SYSTEM TO THE NOISE POWER IN AN IDEAL POWER IN AN IDEAL SYSTEM WHEREIN THIS RATIO IS USUALLY CALLED NOISE FIGURE, WHICH THE MEGANODE MEASURES DIRECTLY IN DECIBELS OR RECEIVER GAIN AND FOR THE INDIRECT CALIBRATION OF STANDARD SIGNAL SOURCES AND USES