I am looking for an antenna for 80-10m for my small 40x17ft garden.

I have seen one on Ebay that is 66ft long using a magnetic bulun/unun so it says, it also calms to tun from 160-6m but I doubt that

I have never heard of a magnetic balun/unun and I am wondering if the guys calms that he will tune the all of th 80m band with a Atu.

What do you guys think and have you got any ideas for any antenna I could use, unfortunately I can't afford Marks' loops!

Ian
2E0GXX