I have the old Wellbrook ALA1530LNP magnetic loop receiving antenna in a position 3′ above the ground and next to a little creek.
I now have a second ALA1530LNP up 13′ or so – above the roof and away from any metal or other obstructions.
I absolutely see the difference – it is 9 dB more gain and lower noise than my first one. With two of these phased and 50′ apart, its truly amazing how well they play when phased through the DX Engineering NCC-2.
If you do not have a lot of space – this is my favorite low band RX system. I’m a huge Wellbrook fan, and if you were thinking about other loops – compare the specs. I can tell you from experience, the Wellbrrok leaves the MFJ-1886 in the dust.