On Fri, 28 May 2004 10:18:53 -0400, JJ hath writ:
If I had a device with an internal antenna and no external antenna jack,
could I construct a device to slip over the area of the internal antenna and
pick up the signal threw induction and wire it to an external antenna ?

Thanks

Yep.
For MW and HF applications:
Wind a half-dozen or so turns of small guage wire around the radio.
Since the orientation of most internal antennas are such that the
ferrite rod lies "east-west" along the long dimension of the case,
winding from the back - over the top - and down across the front
ought to line up your coil properly with the interal antenna
coil and "do it" for you.

One end, then, is connected to a 'long run' of wire out to a tree or
the such. For best results, the other end should be run to ground.

If this radio is mains powered, and there is _any_ chance that the
internal chassis, or metal brackets, or knob shafts, u.s.w., are
exposed, -- *DO NO DO THIS* -- unless you are very experienced and
know what you're doing, and/or have someone that _is_ very experienced
work with you on it.

HTH,
Jonesy
--
| Marvin L Jones | jonz | W3DHJ | OS/2
| Gunnison, Colorado | @ | Jonesy | linux __
| 7,703' -- 2,345m | config.com | DM68mn SK