Michael Black wrote in
news:alpine.LNX.2.02.1407260017460.20123@darkstar. example.org:
Modify the radio so coax can be attached, and feed it from the good
antenna outside (or even just positioned well inside).
Or, buy a radio that already has an external antenna jack.
Now that would be cheating.

Actually the one I bought does have one, but
the point was convenience, allowing local tuning as usual but with no
unwanted wires trailing around as I carry a radio between rooms while
working.
If it were practical I imagine we'd all be doing it, I just wondered if there
might be soem compromise I can use, but likely not one that isn't already
standard practise.