I installed in the garden a G5RV multi-band dipole purchased at WiMo, 31.1m (100') long, with 10m of ladder line and a 4:1 balun connected to 15m of RG-58 coaxial partly buried in the ground. The ALA-1530 (ALA) magnetic loop was set down outdoors in the middle of the garden, 5m away from the shack. The ALA was also installed in a near tree and attached to a window shutter; in each case results were similar. It captured maybe a bit less QRM when it was placed 0.5m above ground, due to the decrease of ground effect but the difference was not important. 

When QRM was strong, the orientation of the loop in the vertical plane was more important than its place in a room or another.

At left the object of comparison, a G5RV dipole tight 5m high only in the garden. It is used like a longwire, thus untuned to listen at BC stations. At right the ALA-1530 active magnetic loop set down outdoors, 5m away from the shack. I did other tests hanging the loop on one of the house shutters, in a tree and in the shack too, with similar results.

Figures II

Here are other figures I recorded at noon and at midnight too but from my appartment in Luxembourg, using a 35m sloper longwire, one half being tight indoor at ceiling level, the other one being tight outdoors, from the window of my 2d story to a fence located at the end of the garden. Of course 15m of this longwire running indoors, it captured much more RFI, to reach at some frequencies 59+. The magnetic loop was the ALA-330 placed indoors, in front of a large window in the living room located street side then in the middle of the living room at ground level where sometimes it gave better results.

For these tests I tight a sloper longwire 35m long between my appartment located at 2d floor and the end of the garden. At right the loop installed in my living room behind the veils.