RadioBanter - View Single Post - Loop Antennas / minijack works-clips don't / impedence??

RHF · August 18th 06, 12:07 AM posted to rec.radio.shortwave

wrote:
Thanks.

I was asking if the tubing made a difference, so that I could TEST
using insulated wire directly on the antenna... and then get some
tubing once I see that the wrapping works and how many wraps are
needed.

1 - If you Wrap the Insulated Wire Directly on-to the
Whip Antenna : Then you have a Fixed {Permenant}
Installation on the one Radio.

DANR - Yes - The Tubing will make a difference.

Since the Insulated Wire will be closer to the Metal
of the Whip Antenna and therefore coupling to it more
effectively. You will find that few turns are required
with the Direct-Wrap. More Turns when the Tubing is
used 'in-between' the Wire and the Whip Antenna.

TIP # 1 - Instead of Tubing for your first attempt. Try a
few wraps of Paper taped around the Whip Antenna as
a Thin Core to make the Coupling Coil more easier to
Put-On or Take-Off as needed.

TIP # 2 - With the Tubing the Coil Assembly can be
positioned {move} In-and-Out on the Whip Antenna
so that the Coupling Effect between the Whip and
Coil can be varried {adjusted} for the best reception.

hope this helps - iane ~ RHF