OK, I have an old tapedeck radio. Fairly low end. It has no antenna
posts for connection of loop or other antenna. I was wondering...
could I set up a line antenna in my apartment, and connect the
lead/drop line to the windings inside the radio? The windings around
the ferrite rod? Or even the ferrite rod itself if that would help?

I'm guessing that might simply lower/affect the existing reception
ability of the ferrite rod & windings. Constructive comments? Thanks.

Maybe you could wrap your wire around the ferrite, then ground one end
of the wire and use the rest as a long wire.

wrote:
OK, I have an old tapedeck radio. Fairly low end. It has no antenna
posts for connection of loop or other antenna. I was wondering...
could I set up a line antenna in my apartment, and connect the
lead/drop line to the windings inside the radio? The windings around
the ferrite rod? Or even the ferrite rod itself if that would help?

I'm guessing that might simply lower/affect the existing reception
ability of the ferrite rod & windings. Constructive comments? Thanks.

On 21 Feb 2006 23:04:18 -0800, wrote:

OK, I have an old tapedeck radio. Fairly low end. It has no antenna
posts for connection of loop or other antenna. I was wondering...
could I set up a line antenna in my apartment, and connect the
lead/drop line to the windings inside the radio? The windings around
the ferrite rod? Or even the ferrite rod itself if that would help?

I'm guessing that might simply lower/affect the existing reception
ability of the ferrite rod & windings. Constructive comments? Thanks.

http://www.grove-ent.com/ANT21.html

You could get a big ferrite rod from a supplier or off EBay, wrap
several dozen antenna windings around it, and then place it next to and
hopefully parallel to the ferrite inside your old radio. Ground one
end of the wire, and string out the other end of your wire as you wish.
Coupling effects should increase your reception. This would be cheap
and noninvasive, and portable too.

If you can open the radio up, you could even place the new wrapped rod
next to the old one (making sure that there is no direct conductive
effect) and try that. If you do this, watch out, though - if too
close, the stronger signal may overload your inexpensive rig.

Otherwise, wrapping insulated wire around your existing ferrite core
and stretching the remainder around your apartment might work just
fine.

BJ

In article .com,
"bpnjensen" wrote:

You could get a big ferrite rod from a supplier or off EBay, wrap
several dozen antenna windings around it, and then place it next to and
hopefully parallel to the ferrite inside your old radio. Ground one
end of the wire, and string out the other end of your wire as you wish.
Coupling effects should increase your reception. This would be cheap
and noninvasive, and portable too.

If you can open the radio up, you could even place the new wrapped rod
next to the old one (making sure that there is no direct conductive
effect) and try that. If you do this, watch out, though - if too
close, the stronger signal may overload your inexpensive rig.

Otherwise, wrapping insulated wire around your existing ferrite core
and stretching the remainder around your apartment might work just
fine.

I vote for the second idea using the existing core with another winding.
The purpose of the core is to increase the inductance per turn. This is
accomplished by concentrating the magnetic field of the coil and as such
will make it harder to magnetically couple between two coils with cores.

You could make an air coil tape it on the outside of the case near the
internal antenna coil inside the case.

This is messy but you could wrap the wire around the outside the radio
case so it's coupled to the internal core with the antenna one one end
and ground on the other.

--
Telamon
Ventura, California

On Thu, 23 Feb 2006 19:19:28 GMT, Telamon
wrote:

In article .com,
"bpnjensen" wrote:

You could get a big ferrite rod from a supplier or off EBay, wrap
several dozen antenna windings around it, and then place it next to and
hopefully parallel to the ferrite inside your old radio. Ground one
end of the wire, and string out the other end of your wire as you wish.
Coupling effects should increase your reception. This would be cheap
and noninvasive, and portable too.

If you can open the radio up, you could even place the new wrapped rod
next to the old one (making sure that there is no direct conductive
effect) and try that. If you do this, watch out, though - if too
close, the stronger signal may overload your inexpensive rig.

Otherwise, wrapping insulated wire around your existing ferrite core
and stretching the remainder around your apartment might work just
fine.

I vote for the second idea using the existing core with another winding.
The purpose of the core is to increase the inductance per turn. This is
accomplished by concentrating the magnetic field of the coil and as such
will make it harder to magnetically couple between two coils with cores.

You could make an air coil tape it on the outside of the case near the
internal antenna coil inside the case.

This is messy but you could wrap the wire around the outside the radio
case so it's coupled to the internal core with the antenna one one end
and ground on the other.
If you're going to the trouble of opening up the case, why not connect
directly to the antenna cicuitry though a suitable DC block?

www.google.com Increase your AM Radio reception with an additional
ferrite antenna.

About four years ago when I was listening to Roger Fredinburg's radio
talk www.regularguy.com show,he said to try wrapping your telephone
cord around your radio and see if that will improve your radio's
reception.I tried that and it didn't seem to help much.Maybe it depends
on the radio.
cuhulin

WASI,

READ - Long LoopStick Antenna for MW DXing ?
http://groups.google.com/group/rec.r...741a1577312f45


READ - Using the "Portable Wire Antenna" (PWA)
with your 'portable' AM/FM Shortwave Radio
http://groups.google.com/group/rec.r...89c8fd6fcb38f2


READ - Two Things that most 'portable' AM/FM Shortwave Radios
Could Use for "Improved" Shortwave Radio Listening (SWL)
http://groups.google.com/group/rec.r...3b6d9bcdb872a8


READ - Three 'different' Radio Bands and two to three 'different'
Antennas
http://groups.google.com/group/rec.r...fda2485aaa7a51



hope this helps - iane ~ RHF

Thanks All. Will check these suggestions out.