My vision, if I even have such a thing is constantly going up in frequency. I am (still!) assembling various bits of microwave gear currently aiming at 10GHz. (EME would be nice, but, baby steps…). Lower frequencies are also interesting me and to that aim I now have a VLF converter which takes 50-500kHz and makes 4.0 to 4.5MHz. After throwing a bit of wire out the window I can pick up Radio 4 – which, of course I can do on just about any old thing (!) but it proves it works. Hopefully this will put SAQ on my radar, but more importantly the 136kHz and 472kHz bands – receive only for now.
The bit of random wire was particularly useless of course, but sufficient to pick out speech on 198kHz.