newby question
 

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

JJ

JJ wrote:
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 ?

http://www.ccrane.com/select_a_tenna_modelm.asp



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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

On Fri, 28 May 2004 10:18:53 -0400, "JJ" wrote:

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

JJ

Hi OM,

Not if it is a high, high, high frequency device like a wireless
phone.

Not if it is a high, high frequency device like an FM walkman (well
maybe).

Sure, if it is a short wave or AM radio.

73's
Richard Clark, KB7QHC

2.4 to 5 Gig
Any solutions ?


"Richard Clark" wrote in message
...
On Fri, 28 May 2004 10:18:53 -0400, "JJ" wrote:

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

JJ

Hi OM,

Not if it is a high, high, high frequency device like a wireless
phone.

Not if it is a high, high frequency device like an FM walkman (well
maybe).

Sure, if it is a short wave or AM radio.

73's
Richard Clark, KB7QHC

On Fri, 28 May 2004 13:15:13 -0400, "JJ" wrote:

2.4 to 5 Gig
Any solutions ?

YOW!

Raise the sucker as high as you can, and extend the data wires to the
point of use.

OR

Raise the sucker as high as you can, build a reflector or dish around
it; and extend the data wires to the point of use.

Beyond that, you stand to lose more than you gain.

73's
Richard Clark, KB7QHC

"JJ" wrote in message
...
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 ?

Sit it at the focus of a dish?

Probably. But you would be better off to do the surgery on the original
device, and install an external antenna connector...

- KI6PR

"JJ" wrote
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

JJ