Why are some radios so directional?- FARMERIK


Can any of the engineers here explain why some radios are VERY directional using the internal ferrite loops?
With my PL-600 I can easily separate stations in different directions by only a fairly small number of degrees, perhaps 15 or 20, The 310 seems good at nulling stations too, and the 911 series are supposed to be very good at that also, as well as a few others. Many other radios cannot do this. I can't completely null out a station that close in direction, but I can make a target much louder than a pest, and switch back and forth between them. What ever causes this would be very good to incorporate in any external antenna designs, if possible. - FARMERIK

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