The question is, what can I use as a ground point? The seller said the
negative battery terminal... Besides being "sloppy" (maybe put a wire
around the battery door), will that do damage? Any other locations to
ground it, for a portable which doesn't have a ground (or antenna)
terminal?

If I don't use headphones, someone mentioned the headphone jack... Is
that ok? I guess I'd have to buy a minijack... which terminal would be
ground? Do I then not connect anything to the other terminal of the
jack?

Interestingly, at around 15 mHz, using the antenna via the clips, does
seem to work (I can tune the antenna and get sensitivity increase - I
don't know if it 100% matches the jack or not - but it's pretty good).

At around 9 mHz, using the antenna via the clips only seems to see the
wire and not the antenna at the end (tuning does nothing).

Does that show an impedence matching issue?

Thanks

Charly wrote:
Hello,

Can you connect both clips ? one to the antenna and one to a "ground" point ?

It does help to have the ground point...

Charly