Small Diameter Loop Antenna magnetic loop
{"Image DocumentName": "Small Diameter Loop Antenna magnetic loop", "Image ImageDescription": "Excellent for nulling a single RFI source. the RFI must be vertically polarized. the RFI must be received via ground wave. Excellent for very accurately locating RFI sources. Bi-directional figure-8 pattern. Deep nulls off both ends of the loop. mechanically rotate the loop until the single RFI source is nulled. Loop antennas produce very low signal levels. requires a high gain, low noise, high dynamic range preamplifier. requires careful attention to isolation of stray pickup from: coaxial feedline. control cable. bury cables about 12 inches deep for best null depth.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}