null position

null position

null positionclick for a larger image
The position of an ADF (automatic direction finder) loop antenna when the signal being received is canceled in the two sides of the loop, and the signal strength is the weakest. At this position, the transmitting station lies in line with the direction of the loop—either ahead or to the rear. A sense aerial is used to remove this ambiguity.
References in periodicals archive ?
Emphasizing that it is time for Arab youth to speak up on this issue, Fakhri explained "decision-makers in the region have always had a null position and this is not acceptable for us, especially as youth whose futures are jeopardized by the problems that this climate catastrophe causes.
After completing the task, the spool will be brought back to null position causing the shaft to not to rotate.
When the time finished, or the rotations are completed, the microprocessor immediately gives the pulses continuously in the reverse direction, to bring back the spool to null position.