[Julesomega]

Didn't know what we were talking about so I took a look on eBay, seems an attractive unit for non-critical MW use. All the listings simply quote the manufacturer's Chinglish nonsense so you have to look for reviews to learn anything more. All reviews are American and all are using some SDR kit so a) they don't mention LW, and b) they all power it from the SDR over USB which may be injecting a load of digital qrn.

Obviously, don't expect the gain and dynamic range of a Wellbrook loop, but I'd like to know how it performs from a battery supply, feeding into a battery portable, and whether the response goes sensibly down to LW as per the specs. I expect it would do well with a vintage valve set if you take the trouble to wind a little transformer, maybe 3:10 turns of fine wire on one of those Dual Aperture Ferrite Cores like from RS