My primary tx and receive antenna is a HyGain AV640 mounted on top of the garage. The "noise" antenna is about 30 feet away and I use a DX Engineering active receive antenna for this. Since it is relatively close, it only works on 40 meters to 10m, but I really only need it on 40 and 20, the noise sources otherwise are acceptable.
Very worthwhile purchase.
Have any of you used the MFJ-1025, (or 6), RFI reducer? How does it next to the the DX Engineering one?