Experimenting with magnetic loops

[mw0uzo]

I made a test magnetic loop for 10m today, about 1.5m in diameter. Seems to work well, the loop is just made from twisted up solid copper strand, not very thick diameter on a plastic pipe frame on a stand made form a thrown away cupboard door. I don't have a suitable capacitor yet, but will hopefully get one soon.

Anyone else here made magnetic loops? I want to build one that will TX on 80m as well as get rid of all the nasty mean noise I suffer from. I understand that the size of the loop is proportional to the bandwidth, and the 1/resistance of the loop proportional to how far down it will tune with the capacitor and still be efficient. Could be wrong here, please correct me. Edit: I have a few conflicting sources of information - size affects the efficiency too. Larger diameter of pipe is good.

So to get those resistances down - large diameter pipe. Copper pipe readily available. Is thin, large diameter and lightweight pipe easily available?