Mfj Nuller will not work because the signal is in the same direction of my
300 deg pointing pennant.
There are a lot of popular misconceptions about this. The noise does always
not have to be a different direction, or even just one source.
The MFJ nuller and other similar systems will remove noise when:
1.) The sense antenna is much closer to the noise, or picks up the noise
much better compared to signals than the listening antenna does. This is
true no matter what the desired signal direction. In this case you are
eliminating a source by having a sense antenna hear the noise much stronger
than the sense antenna hears desired signals.
2.) The noise is one or multiple sources from the same direction and the
sense antenna is reasonably close to the RX antenna and the correct
direction from the RX antenna. The noise has to be a significantly different
direction than the RX direction. You are just eliminating the general noise
direction in this case.
3.) The noise can be from multiple sources radiating from the same point. A
long power line with multiple insulators arcing that is passing by close,
and conducting emissions to that point, might be an example. You are
nulling the point of coupling, rather than the noise generator's location.
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